0028316: Coding Rules - Elimilate confusing aliases of Standard_Real type in V3d_View
[occt.git] / src / V3d / V3d_View.cxx
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973c2be1 1// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 2//
973c2be1 3// This file is part of Open CASCADE Technology software library.
b311480e 4//
d5f74e42 5// This library is free software; you can redistribute it and/or modify it under
6// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1 7// by the Free Software Foundation, with special exception defined in the file
8// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9// distribution for complete text of the license and disclaimer of any warranty.
b311480e 10//
973c2be1 11// Alternatively, this file may be used under the terms of Open CASCADE
12// commercial license or contractual agreement.
b311480e 13
3bffef55 14#include <V3d_View.hxx>
7fd59977 15
42cf5bc1 16#include <Aspect_GradientBackground.hxx>
17#include <Aspect_Grid.hxx>
18#include <Aspect_Window.hxx>
19#include <Bnd_Box.hxx>
20#include <gp_Ax3.hxx>
7fd59977 21#include <gp_Dir.hxx>
b5ac8292 22#include <gp_Pln.hxx>
42cf5bc1 23#include <Graphic3d_AspectMarker3d.hxx>
24#include <Graphic3d_GraphicDriver.hxx>
25#include <Graphic3d_Group.hxx>
b5ac8292 26#include <Graphic3d_MapIteratorOfMapOfStructure.hxx>
27#include <Graphic3d_MapOfStructure.hxx>
42cf5bc1 28#include <Graphic3d_Structure.hxx>
b5ac8292 29#include <Graphic3d_TextureEnv.hxx>
42cf5bc1 30#include <Graphic3d_Vector.hxx>
31#include <Image_AlienPixMap.hxx>
3bffef55 32#include <Message.hxx>
33#include <Message_Messenger.hxx>
42cf5bc1 34#include <NCollection_Array1.hxx>
35#include <Precision.hxx>
36#include <Quantity_Color.hxx>
37#include <Standard_Assert.hxx>
38#include <Standard_DivideByZero.hxx>
39#include <Standard_ErrorHandler.hxx>
40#include <Standard_MultiplyDefined.hxx>
41#include <Standard_ShortReal.hxx>
42#include <Standard_Type.hxx>
43#include <Standard_TypeMismatch.hxx>
c357e426 44#include <TColgp_Array1OfPnt.hxx>
42cf5bc1 45#include <TColStd_Array2OfReal.hxx>
46#include <TColStd_HSequenceOfInteger.hxx>
47#include <V3d.hxx>
48#include <V3d_BadValue.hxx>
42cf5bc1 49#include <V3d_Light.hxx>
50#include <V3d_StereoDumpOptions.hxx>
51#include <V3d_UnMapped.hxx>
42cf5bc1 52#include <V3d_Viewer.hxx>
7fd59977 53
92efcf78 54IMPLEMENT_STANDARD_RTTIEXT(V3d_View,MMgt_TShared)
55
c6541a0c 56#define DEUXPI (2. * M_PI)
7fd59977 57
4af098ba 58namespace
59{
60 static const Standard_Integer THE_NB_BOUND_POINTS = 8;
61}
62
197ac94e 63//=============================================================================
64//function : Constructor
65//purpose :
66//=============================================================================
c357e426 67V3d_View::V3d_View (const Handle(V3d_Viewer)& theViewer, const V3d_TypeOfView theType)
68: MyViewer (theViewer.operator->()),
c357e426 69 SwitchSetFront (Standard_False),
016e5959 70 myZRotation (Standard_False),
caf231b0 71 myTrihedron (new V3d_Trihedron()),
6bc6a6fc 72 MyTrsf (1, 4, 1, 4)
7fd59977 73{
c357e426 74 myView = theViewer->Driver()->CreateView (theViewer->StructureManager());
7fd59977 75
c357e426 76 myView->SetBackground (theViewer->GetBackgroundColor());
77 myView->SetGradientBackground (theViewer->GetGradientBackground());
7fd59977 78
832ae82d 79 ChangeRenderingParams() = theViewer->DefaultRenderingParams();
80
b5ac8292 81 // camera init
82 Handle(Graphic3d_Camera) aCamera = new Graphic3d_Camera();
83 aCamera->SetFOVy (45.0);
84 aCamera->SetIOD (Graphic3d_Camera::IODType_Relative, 0.05);
85 aCamera->SetZFocus (Graphic3d_Camera::FocusType_Relative, 1.0);
c357e426 86 aCamera->SetProjectionType ((theType == V3d_ORTHOGRAPHIC)
87 ? Graphic3d_Camera::Projection_Orthographic
88 : Graphic3d_Camera::Projection_Perspective);
b5ac8292 89
c357e426 90 myDefaultCamera = new Graphic3d_Camera();
91
92 myImmediateUpdate = Standard_False;
c357e426 93 SetAutoZFitMode (Standard_True, 1.0);
94 SetBackFacingModel (V3d_TOBM_AUTOMATIC);
95 SetCamera (aCamera);
b5ac8292 96 SetAxis (0.,0.,0.,1.,1.,1.);
c357e426 97 SetVisualization (theViewer->DefaultVisualization());
98 SetShadingModel (theViewer->DefaultShadingModel());
b5ac8292 99 SetTwist (0.);
100 SetAt (0.,0.,0.);
c357e426 101 SetProj (theViewer->DefaultViewProj());
102 SetSize (theViewer->DefaultViewSize());
103 Standard_Real zsize = theViewer->DefaultViewSize();
b5ac8292 104 SetZSize (2.*zsize);
c357e426 105 SetDepth (theViewer->DefaultViewSize() / 2.0);
7fd59977 106 SetViewMappingDefault();
fc8eab5e 107 SetViewOrientationDefault();
c357e426 108 theViewer->AddView (this);
7fd59977 109 Init();
110 myImmediateUpdate = Standard_True;
7fd59977 111}
112
197ac94e 113//=============================================================================
114//function : Constructor
115//purpose :
116//=============================================================================
c357e426 117V3d_View::V3d_View (const Handle(V3d_Viewer)& theViewer, const Handle(V3d_View)& theView)
118: MyViewer (theViewer.operator->()),
197ac94e 119 SwitchSetFront(Standard_False),
016e5959 120 myZRotation (Standard_False),
197ac94e 121 MyTrsf (1, 4, 1, 4)
7fd59977 122{
c357e426 123 myView = theViewer->Driver()->CreateView (theViewer->StructureManager());
7fd59977 124
c357e426 125 myView->CopySettings (theView->View());
7fd59977 126
c357e426 127 myDefaultCamera = new Graphic3d_Camera();
b5ac8292 128
c357e426 129 myImmediateUpdate = Standard_False;
130 SetAutoZFitMode (theView->AutoZFitMode(), theView->AutoZFitScaleFactor());
b5ac8292 131 SetAxis (0.0, 0.0, 0.0, 1.0, 1.0, 1.0);
fc8eab5e 132 SetViewMappingDefault();
133 SetViewOrientationDefault();
c357e426 134 theViewer->AddView (this);
7fd59977 135 Init();
136 myImmediateUpdate = Standard_True;
7fd59977 137}
138
197ac94e 139//=============================================================================
c357e426 140//function : Destructor
197ac94e 141//purpose :
142//=============================================================================
c357e426 143V3d_View::~V3d_View()
144{
145 if (!myView->IsRemoved())
146 {
147 myView->Remove();
7fd59977 148 }
7fd59977 149}
150
197ac94e 151//=============================================================================
c357e426 152//function : SetMagnify
197ac94e 153//purpose :
154//=============================================================================
c357e426 155void V3d_View::SetMagnify (const Handle(Aspect_Window)& theWindow,
156 const Handle(V3d_View)& thePreviousView,
157 const Standard_Integer theX1,
158 const Standard_Integer theY1,
159 const Standard_Integer theX2,
160 const Standard_Integer theY2)
7fd59977 161{
c357e426 162 if (!myView->IsRemoved() && !myView->IsDefined())
163 {
164 Standard_Real aU1, aV1, aU2, aV2;
165 thePreviousView->Convert (theX1, theY1, aU1, aV1);
166 thePreviousView->Convert (theX2, theY2, aU2, aV2);
167 myView->SetWindow (theWindow);
434ffc09 168 FitAll (aU1, aV1, aU2, aV2);
c357e426 169 MyViewer->SetViewOn (this);
170 MyWindow = theWindow;
171 SetRatio();
172 Redraw();
173 SetViewMappingDefault();
174 }
7fd59977 175}
176
197ac94e 177//=============================================================================
178//function : SetWindow
179//purpose :
180//=============================================================================
a521d90d 181void V3d_View::SetWindow (const Handle(Aspect_Window)& theWindow,
182 const Aspect_RenderingContext theContext)
7fd59977 183{
c357e426 184 if (myView->IsRemoved())
185 {
186 return;
187 }
188
05e2200b 189 // method V3d_View::SetWindow() should assign the field MyWindow before calling Redraw()
c357e426 190 MyWindow = theWindow;
a521d90d 191 myView->SetWindow (theWindow, theContext);
c357e426 192 MyViewer->SetViewOn (this);
193 SetRatio();
194 Redraw();
7fd59977 195}
7fd59977 196
197ac94e 197//=============================================================================
198//function : Remove
199//purpose :
200//=============================================================================
5e27df78 201void V3d_View::Remove() const
202{
203 MyViewer->DelView (this);
c357e426 204 myView->Remove();
5e27df78 205 Handle(Aspect_Window)& aWin = const_cast<Handle(Aspect_Window)&> (MyWindow);
206 aWin.Nullify();
7fd59977 207}
208
197ac94e 209//=============================================================================
210//function : Update
211//purpose :
212//=============================================================================
b8ddfc2f 213void V3d_View::Update() const
214{
c357e426 215 if (!myView->IsDefined()
216 || !myView->IsActive())
217 {
218 return;
219 }
220
cfece3ef 221 myView->Update();
222 myView->Compute();
223 myView->Redraw();
7fd59977 224}
225
197ac94e 226//=============================================================================
227//function : Redraw
228//purpose :
229//=============================================================================
b8ddfc2f 230void V3d_View::Redraw() const
231{
c357e426 232 if (!myView->IsDefined()
233 || !myView->IsActive())
234 {
235 return;
236 }
237
238 Handle(Graphic3d_GraphicDriver) aGraphicDriver = MyViewer->Driver();
239 Handle(Graphic3d_StructureManager) aStructureMgr = MyViewer->StructureManager();
240 for (Standard_Integer aRetryIter = 0; aRetryIter < 2; ++aRetryIter)
241 {
242 if (aGraphicDriver->IsDeviceLost())
243 {
244 aStructureMgr->RecomputeStructures();
245 aGraphicDriver->ResetDeviceLostFlag();
246 }
247
248 AutoZFit();
249
250 myView->Redraw();
251
252 if (!aGraphicDriver->IsDeviceLost())
253 {
254 return;
255 }
256 }
7fd59977 257}
b8ddfc2f 258
197ac94e 259//=============================================================================
679ecdee 260//function : RedrawImmediate
261//purpose :
262//=============================================================================
263void V3d_View::RedrawImmediate() const
264{
c357e426 265 if (!myView->IsDefined()
266 || !myView->IsActive())
679ecdee 267 {
c357e426 268 return;
679ecdee 269 }
c357e426 270
271 myView->RedrawImmediate();
679ecdee 272}
273
274//=============================================================================
275//function : Invalidate
276//purpose :
277//=============================================================================
278void V3d_View::Invalidate() const
279{
c357e426 280 if (!myView->IsDefined())
679ecdee 281 {
c357e426 282 return;
679ecdee 283 }
c357e426 284
285 myView->Invalidate();
679ecdee 286}
287
288//=============================================================================
62e1beed 289//function : IsInvalidated
290//purpose :
291//=============================================================================
292Standard_Boolean V3d_View::IsInvalidated() const
293{
c357e426 294 return !myView->IsDefined()
295 || myView->IsInvalidated();
62e1beed 296}
297
c357e426 298// ========================================================================
299// function : SetAutoZFitMode
300// purpose :
301// ========================================================================
302void V3d_View::SetAutoZFitMode (const Standard_Boolean theIsOn,
303 const Standard_Real theScaleFactor)
304{
305 Standard_ASSERT_RAISE (theScaleFactor > 0.0, "Zero or negative scale factor is not allowed.");
306 myAutoZFitScaleFactor = theScaleFactor;
307 myAutoZFitIsOn = theIsOn;
308}
309
310// ========================================================================
311// function : AutoZFitMode
312// purpose :
313// ========================================================================
314Standard_Boolean V3d_View::AutoZFitMode() const
315{
316 return myAutoZFitIsOn;
317}
318
319// ========================================================================
320// function : AutoZFitScaleFactor
321// purpose :
322// ========================================================================
323Standard_Real V3d_View::AutoZFitScaleFactor() const
6bc6a6fc 324{
c357e426 325 return myAutoZFitScaleFactor;
6bc6a6fc 326}
327
328//=============================================================================
c357e426 329//function : AutoZFit
6bc6a6fc 330//purpose :
331//=============================================================================
c357e426 332void V3d_View::AutoZFit() const
6bc6a6fc 333{
c357e426 334 if (!AutoZFitMode())
335 {
336 return;
337 }
338
339 ZFitAll (myAutoZFitScaleFactor);
6bc6a6fc 340}
341
342//=============================================================================
c357e426 343//function : ZFitAll
197ac94e 344//purpose :
345//=============================================================================
c357e426 346void V3d_View::ZFitAll (const Standard_Real theScaleFactor) const
7fd59977 347{
c357e426 348 Bnd_Box aMinMaxBox = myView->MinMaxValues (Standard_False); // applicative min max boundaries
349 Bnd_Box aGraphicBox = myView->MinMaxValues (Standard_True); // real graphical boundaries (not accounting infinite flag).
350
351 myView->Camera()->ZFitAll (theScaleFactor, aMinMaxBox, aGraphicBox);
7fd59977 352}
353
197ac94e 354//=============================================================================
355//function : IsEmpty
356//purpose :
357//=============================================================================
b8ddfc2f 358Standard_Boolean V3d_View::IsEmpty() const
359{
7fd59977 360 Standard_Boolean TheStatus = Standard_True ;
c357e426 361 if( myView->IsDefined() ) {
362 Standard_Integer Nstruct = myView->NumberOfDisplayedStructures() ;
7fd59977 363 if( Nstruct > 0 ) TheStatus = Standard_False ;
364 }
365 return (TheStatus) ;
7fd59977 366}
367
197ac94e 368//=============================================================================
369//function : UpdateLights
370//purpose :
371//=============================================================================
b8ddfc2f 372void V3d_View::UpdateLights() const
373{
c357e426 374 Graphic3d_ListOfCLight aLights;
6a24c6de 375 for (V3d_ListOfLight::Iterator anActiveLightIter (myActiveLights); anActiveLightIter.More(); anActiveLightIter.Next())
c357e426 376 {
6a24c6de 377 aLights.Append (anActiveLightIter.Value()->Light());
c357e426 378 }
c357e426 379 myView->SetLights (aLights);
7fd59977 380 Update();
381}
382
197ac94e 383//=============================================================================
384//function : DoMapping
385//purpose :
386//=============================================================================
b8ddfc2f 387void V3d_View::DoMapping()
388{
c357e426 389 if (!myView->IsDefined())
390 {
391 return;
7fd59977 392 }
c357e426 393
394 myView->Window()->DoMapping();
7fd59977 395}
396
197ac94e 397//=============================================================================
398//function : MustBeResized
399//purpose :
400//=============================================================================
b8ddfc2f 401void V3d_View::MustBeResized()
402{
c357e426 403 if (!myView->IsDefined())
404 {
405 return;
7fd59977 406 }
c357e426 407
408 myView->Resized();
409
410 SetRatio();
411
412 Redraw();
7fd59977 413}
414
197ac94e 415//=============================================================================
416//function : SetBackgroundColor
417//purpose :
418//=============================================================================
c357e426 419void V3d_View::SetBackgroundColor (const Quantity_TypeOfColor theType,
420 const Standard_Real theV1,
421 const Standard_Real theV2,
422 const Standard_Real theV3)
7fd59977 423{
c357e426 424 Standard_Real aV1 = Max (Min (theV1, 1.0), 0.0);
425 Standard_Real aV2 = Max (Min (theV2, 1.0), 0.0);
426 Standard_Real aV3 = Max (Min (theV3, 1.0), 0.0);
7fd59977 427
c357e426 428 SetBackgroundColor (Quantity_Color (aV1, aV2, aV3, theType));
7fd59977 429}
430
197ac94e 431//=============================================================================
432//function : SetBackgroundColor
433//purpose :
434//=============================================================================
c357e426 435void V3d_View::SetBackgroundColor (const Quantity_Color& theColor)
7fd59977 436{
c357e426 437 myView->SetBackground (Aspect_Background (theColor));
438
439 if (myImmediateUpdate)
440 {
441 Redraw();
442 }
7fd59977 443}
7fd59977 444
197ac94e 445//=============================================================================
197ac94e 446//function : SetBgGradientColors
447//purpose :
448//=============================================================================
c357e426 449void V3d_View::SetBgGradientColors (const Quantity_Color& theColor1,
450 const Quantity_Color& theColor2,
451 const Aspect_GradientFillMethod theFillStyle,
452 const Standard_Boolean theToUpdate)
7fd59977 453{
c357e426 454 Aspect_GradientBackground aGradientBg (theColor1, theColor2, theFillStyle);
455
456 myView->SetGradientBackground (aGradientBg);
457
458 if (myImmediateUpdate || theToUpdate)
459 {
460 Redraw();
461 }
7fd59977 462}
463
197ac94e 464//=============================================================================
197ac94e 465//function : SetBgGradientStyle
466//purpose :
467//=============================================================================
c357e426 468void V3d_View::SetBgGradientStyle (const Aspect_GradientFillMethod theFillStyle, const Standard_Boolean theToUpdate)
7fd59977 469{
c357e426 470 Quantity_Color aColor1;
471 Quantity_Color aColor2;
472 GradientBackground().Colors (aColor1, aColor2);
473
474 SetBgGradientColors (aColor1, aColor2, theFillStyle, theToUpdate);
7fd59977 475}
476
197ac94e 477//=============================================================================
478//function : SetBackgroundImage
479//purpose :
480//=============================================================================
c357e426 481void V3d_View::SetBackgroundImage (const Standard_CString theFileName,
482 const Aspect_FillMethod theFillStyle,
483 const Standard_Boolean theToUpdate)
7fd59977 484{
c357e426 485 myView->SetBackgroundImage (theFileName);
486 myView->SetBackgroundImageStyle (theFillStyle);
487
488 if (myImmediateUpdate || theToUpdate)
489 {
490 Redraw();
491 }
7fd59977 492}
493
197ac94e 494//=============================================================================
495//function : SetBgImageStyle
496//purpose :
497//=============================================================================
c357e426 498void V3d_View::SetBgImageStyle (const Aspect_FillMethod theFillStyle, const Standard_Boolean theToUpdate)
7fd59977 499{
c357e426 500 myView->SetBackgroundImageStyle (theFillStyle);
501
502 if (myImmediateUpdate || theToUpdate)
503 {
504 Redraw();
505 }
7fd59977 506}
507
197ac94e 508//=============================================================================
509//function : SetAxis
510//purpose :
511//=============================================================================
b8ddfc2f 512void V3d_View::SetAxis(const Standard_Real X, const Standard_Real Y, const Standard_Real Z, const Standard_Real Vx, const Standard_Real Vy, const Standard_Real Vz)
513{
7fd59977 514 Standard_Real D,Nx = Vx,Ny = Vy,Nz = Vz ;
515
516 D = Sqrt( Vx*Vx + Vy*Vy + Vz*Vz ) ;
6942f04a 517 V3d_BadValue_Raise_if ( D <= 0. , "V3d_View::SetAxis, bad axis");
7fd59977 518 Nx /= D ; Ny /= D ; Nz /= D ;
519 MyDefaultViewPoint.SetCoord(X,Y,Z) ;
520 MyDefaultViewAxis.SetCoord(Nx,Ny,Nz) ;
7fd59977 521}
522
197ac94e 523//=============================================================================
524//function : SetShadingModel
525//purpose :
526//=============================================================================
c357e426 527void V3d_View::SetShadingModel (const V3d_TypeOfShadingModel theShadingModel)
b8ddfc2f 528{
c357e426 529 myView->SetShadingModel (static_cast<Graphic3d_TypeOfShadingModel> (theShadingModel));
7fd59977 530}
531
197ac94e 532//=============================================================================
197ac94e 533//function : SetTextureEnv
534//purpose :
535//=============================================================================
c357e426 536void V3d_View::SetTextureEnv (const Handle(Graphic3d_TextureEnv)& theTexture)
b8ddfc2f 537{
c357e426 538 myView->SetTextureEnv (theTexture);
539
540 if (myImmediateUpdate)
541 {
542 Redraw();
543 }
7fd59977 544}
545
197ac94e 546//=============================================================================
547//function : SetVisualization
548//purpose :
549//=============================================================================
c357e426 550void V3d_View::SetVisualization (const V3d_TypeOfVisualization theType)
b8ddfc2f 551{
c357e426 552 myView->SetVisualizationType (static_cast <Graphic3d_TypeOfVisualization> (theType));
553
554 if (myImmediateUpdate)
555 {
556 Redraw();
557 }
7fd59977 558}
559
197ac94e 560//=============================================================================
561//function : SetFront
562//purpose :
563//=============================================================================
b8ddfc2f 564void V3d_View::SetFront()
565{
7fd59977 566 gp_Ax3 a = MyViewer->PrivilegedPlane();
b5ac8292 567 Standard_Real xo, yo, zo, vx, vy, vz, xu, yu, zu;
7fd59977 568
569 a.Direction().Coord(vx,vy,vz);
570 a.YDirection().Coord(xu,yu,zu);
571 a.Location().Coord(xo,yo,zo);
572
c357e426 573 Handle(Graphic3d_Camera) aCamera = Camera();
574
575 aCamera->SetCenter (gp_Pnt (xo, yo, zo));
576
7fd59977 577 if(SwitchSetFront)
c357e426 578 {
579 aCamera->SetDirection (gp_Dir (vx, vy, vz));
580 }
7fd59977 581 else
c357e426 582 {
583 aCamera->SetDirection (gp_Dir (vx, vy, vz).Reversed());
584 }
585
586 aCamera->SetUp (gp_Dir (xu, yu, zu));
7fd59977 587
c357e426 588 AutoZFit();
7fd59977 589
b5ac8292 590 SwitchSetFront = !SwitchSetFront;
7fd59977 591
592 ImmediateUpdate();
7fd59977 593}
594
197ac94e 595//=============================================================================
596//function : Rotate
597//purpose :
598//=============================================================================
b5ac8292 599void V3d_View::Rotate (const Standard_Real ax,
600 const Standard_Real ay,
601 const Standard_Real az,
602 const Standard_Boolean Start)
b8ddfc2f 603{
b5ac8292 604 Standard_Real Ax = ax;
605 Standard_Real Ay = ay;
606 Standard_Real Az = az;
7fd59977 607
b5ac8292 608 if( Ax > 0. ) while ( Ax > DEUXPI ) Ax -= DEUXPI;
609 else if( Ax < 0. ) while ( Ax < -DEUXPI ) Ax += DEUXPI;
610 if( Ay > 0. ) while ( Ay > DEUXPI ) Ay -= DEUXPI;
611 else if( Ay < 0. ) while ( Ay < -DEUXPI ) Ay += DEUXPI;
612 if( Az > 0. ) while ( Az > DEUXPI ) Az -= DEUXPI;
613 else if( Az < 0. ) while ( Az < -DEUXPI ) Az += DEUXPI;
614
c357e426 615 Handle(Graphic3d_Camera) aCamera = Camera();
616
b5ac8292 617 if (Start)
618 {
c357e426 619 myCamStartOpUp = aCamera->Up();
620 myCamStartOpEye = aCamera->Eye();
621 myCamStartOpCenter = aCamera->Center();
b5ac8292 622 }
623
c357e426 624 aCamera->SetUp (myCamStartOpUp);
625 aCamera->SetEye (myCamStartOpEye);
626 aCamera->SetCenter (myCamStartOpCenter);
b5ac8292 627
628 // rotate camera around 3 initial axes
629 gp_Dir aBackDir (gp_Vec (myCamStartOpCenter, myCamStartOpEye));
630 gp_Dir aXAxis (myCamStartOpUp.Crossed (aBackDir));
631 gp_Dir aYAxis (aBackDir.Crossed (aXAxis));
632 gp_Dir aZAxis (aXAxis.Crossed (aYAxis));
633
634 gp_Trsf aRot[3], aTrsf;
635 aRot[0].SetRotation (gp_Ax1 (myCamStartOpCenter, aYAxis), -Ax);
636 aRot[1].SetRotation (gp_Ax1 (myCamStartOpCenter, aXAxis), Ay);
637 aRot[2].SetRotation (gp_Ax1 (myCamStartOpCenter, aZAxis), Az);
638 aTrsf.Multiply (aRot[0]);
639 aTrsf.Multiply (aRot[1]);
640 aTrsf.Multiply (aRot[2]);
641
c357e426 642 aCamera->Transform (aTrsf);
b5ac8292 643
c357e426 644 AutoZFit();
7fd59977 645
7fd59977 646 ImmediateUpdate();
7fd59977 647}
648
197ac94e 649//=============================================================================
650//function : Rotate
651//purpose :
652//=============================================================================
7fd59977 653void V3d_View::Rotate(const Standard_Real ax, const Standard_Real ay, const Standard_Real az,
654 const Standard_Real X, const Standard_Real Y, const Standard_Real Z, const Standard_Boolean Start)
655{
b5ac8292 656
7fd59977 657 Standard_Real Ax = ax ;
658 Standard_Real Ay = ay ;
659 Standard_Real Az = az ;
7fd59977 660
661 if( Ax > 0. ) while ( Ax > DEUXPI ) Ax -= DEUXPI ;
662 else if( Ax < 0. ) while ( Ax < -DEUXPI ) Ax += DEUXPI ;
663 if( Ay > 0. ) while ( Ay > DEUXPI ) Ay -= DEUXPI ;
664 else if( Ay < 0. ) while ( Ay < -DEUXPI ) Ay += DEUXPI ;
665 if( Az > 0. ) while ( Az > DEUXPI ) Az -= DEUXPI ;
666 else if( Az < 0. ) while ( Az < -DEUXPI ) Az += DEUXPI ;
667
c357e426 668 Handle(Graphic3d_Camera) aCamera = Camera();
669
b5ac8292 670 if (Start)
671 {
672 myGravityReferencePoint.SetCoord (X, Y, Z);
c357e426 673 myCamStartOpUp = aCamera->Up();
674 myCamStartOpEye = aCamera->Eye();
675 myCamStartOpCenter = aCamera->Center();
b5ac8292 676 }
677
678 const Graphic3d_Vertex& aVref = myGravityReferencePoint;
679
c357e426 680 aCamera->SetUp (myCamStartOpUp);
681 aCamera->SetEye (myCamStartOpEye);
682 aCamera->SetCenter (myCamStartOpCenter);
b5ac8292 683
684 // rotate camera around 3 initial axes
685 gp_Pnt aRCenter (aVref.X(), aVref.Y(), aVref.Z());
686
c357e426 687 gp_Dir aZAxis (aCamera->Direction().Reversed());
688 gp_Dir aYAxis (aCamera->Up());
b5ac8292 689 gp_Dir aXAxis (aYAxis.Crossed (aZAxis));
690
691 gp_Trsf aRot[3], aTrsf;
692 aRot[0].SetRotation (gp_Ax1 (aRCenter, aYAxis), -Ax);
693 aRot[1].SetRotation (gp_Ax1 (aRCenter, aXAxis), Ay);
694 aRot[2].SetRotation (gp_Ax1 (aRCenter, aZAxis), Az);
695 aTrsf.Multiply (aRot[0]);
696 aTrsf.Multiply (aRot[1]);
697 aTrsf.Multiply (aRot[2]);
698
c357e426 699 aCamera->Transform (aTrsf);
b5ac8292 700
c357e426 701 AutoZFit();
b5ac8292 702
7fd59977 703 ImmediateUpdate();
7fd59977 704}
705
197ac94e 706//=============================================================================
707//function : Rotate
708//purpose :
709//=============================================================================
b8ddfc2f 710void V3d_View::Rotate(const V3d_TypeOfAxe Axe, const Standard_Real angle, const Standard_Boolean Start)
711{
7fd59977 712 switch (Axe) {
713 case V3d_X :
714 Rotate(angle,0.,0.,Start);
715 break ;
716 case V3d_Y :
717 Rotate(0.,angle,0.,Start);
718 break ;
719 case V3d_Z :
720 Rotate(0.,0.,angle,Start);
721 break ;
722 }
7fd59977 723}
724
197ac94e 725//=============================================================================
726//function : Rotate
727//purpose :
728//=============================================================================
7fd59977 729void V3d_View::Rotate(const V3d_TypeOfAxe Axe, const Standard_Real angle,
730 const Standard_Real X, const Standard_Real Y, const Standard_Real Z, const Standard_Boolean Start)
731{
7fd59977 732 Standard_Real Angle = angle ;
7fd59977 733
734 if( Angle > 0. ) while ( Angle > DEUXPI ) Angle -= DEUXPI ;
735 else if( Angle < 0. ) while ( Angle < -DEUXPI ) Angle += DEUXPI ;
736
c357e426 737 Handle(Graphic3d_Camera) aCamera = Camera();
738
b5ac8292 739 if (Start)
740 {
741 myGravityReferencePoint.SetCoord (X, Y, Z);
c357e426 742 myCamStartOpUp = aCamera->Up();
743 myCamStartOpEye = aCamera->Eye();
744 myCamStartOpCenter = aCamera->Center();
b5ac8292 745
7fd59977 746 switch (Axe) {
747 case V3d_X :
b5ac8292 748 myViewAxis.SetCoord(1.,0.,0.) ;
7fd59977 749 break ;
750 case V3d_Y :
b5ac8292 751 myViewAxis.SetCoord(0.,1.,0.) ;
7fd59977 752 break ;
753 case V3d_Z :
b5ac8292 754 myViewAxis.SetCoord(0.,0.,1.) ;
7fd59977 755 break ;
756 }
b5ac8292 757
c357e426 758 myCamStartOpUp = aCamera->Up();
759 myCamStartOpEye = aCamera->Eye();
760 myCamStartOpCenter = aCamera->Center();
7fd59977 761 }
762
b5ac8292 763 const Graphic3d_Vertex& aVref = myGravityReferencePoint;
764
c357e426 765 aCamera->SetUp (myCamStartOpUp);
766 aCamera->SetEye (myCamStartOpEye);
767 aCamera->SetCenter (myCamStartOpCenter);
b5ac8292 768
769 // rotate camera around passed axis
770 gp_Trsf aRotation;
771 gp_Pnt aRCenter (aVref.X(), aVref.Y(), aVref.Z());
772 gp_Dir aRAxis ((Axe == V3d_X) ? 1.0 : 0.0,
773 (Axe == V3d_Y) ? 1.0 : 0.0,
774 (Axe == V3d_Z) ? 1.0 : 0.0);
775
776 aRotation.SetRotation (gp_Ax1 (aRCenter, aRAxis), Angle);
b5ac8292 777
c357e426 778 aCamera->Transform (aRotation);
779
780 AutoZFit();
b5ac8292 781
7fd59977 782 ImmediateUpdate();
7fd59977 783}
784
197ac94e 785//=============================================================================
786//function : Rotate
787//purpose :
788//=============================================================================
b8ddfc2f 789void V3d_View::Rotate(const Standard_Real angle, const Standard_Boolean Start)
790{
b5ac8292 791 Standard_Real Angle = angle;
7fd59977 792
793 if( Angle > 0. ) while ( Angle > DEUXPI ) Angle -= DEUXPI ;
794 else if( Angle < 0. ) while ( Angle < -DEUXPI ) Angle += DEUXPI ;
795
c357e426 796 Handle(Graphic3d_Camera) aCamera = Camera();
797
7fd59977 798 if( Start ) {
c357e426 799 myCamStartOpUp = aCamera->Up();
800 myCamStartOpEye = aCamera->Eye();
801 myCamStartOpCenter = aCamera->Center();
7fd59977 802 }
803
b5ac8292 804 const Graphic3d_Vertex& aPnt = MyDefaultViewPoint;
805 const Graphic3d_Vector& anAxis = MyDefaultViewAxis;
806
c357e426 807 aCamera->SetUp (myCamStartOpUp);
808 aCamera->SetEye (myCamStartOpEye);
809 aCamera->SetCenter (myCamStartOpCenter);
b5ac8292 810
811 gp_Trsf aRotation;
812 gp_Pnt aRCenter (aPnt.X(), aPnt.Y(), aPnt.Z());
813 gp_Dir aRAxis (anAxis.X(), anAxis.Y(), anAxis.Z());
814 aRotation.SetRotation (gp_Ax1 (aRCenter, aRAxis), Angle);
b5ac8292 815
c357e426 816 aCamera->Transform (aRotation);
817
818 AutoZFit();
b5ac8292 819
7fd59977 820 ImmediateUpdate();
7fd59977 821}
822
197ac94e 823//=============================================================================
824//function : Turn
825//purpose :
826//=============================================================================
7fd59977 827void V3d_View::Turn(const Standard_Real ax, const Standard_Real ay, const Standard_Real az, const Standard_Boolean Start)
828{
b5ac8292 829 Standard_Real Ax = ax;
830 Standard_Real Ay = ay;
831 Standard_Real Az = az;
7fd59977 832
833 if( Ax > 0. ) while ( Ax > DEUXPI ) Ax -= DEUXPI ;
834 else if( Ax < 0. ) while ( Ax < -DEUXPI ) Ax += DEUXPI ;
835 if( Ay > 0. ) while ( Ay > DEUXPI ) Ay -= DEUXPI ;
836 else if( Ay < 0. ) while ( Ay < -DEUXPI ) Ay += DEUXPI ;
837 if( Az > 0. ) while ( Az > DEUXPI ) Az -= DEUXPI ;
838 else if( Az < 0. ) while ( Az < -DEUXPI ) Az += DEUXPI ;
839
c357e426 840 Handle(Graphic3d_Camera) aCamera = Camera();
841
7fd59977 842 if( Start ) {
c357e426 843 myCamStartOpUp = aCamera->Up();
844 myCamStartOpEye = aCamera->Eye();
845 myCamStartOpCenter = aCamera->Center();
b5ac8292 846 }
847
c357e426 848 aCamera->SetUp (myCamStartOpUp);
849 aCamera->SetEye (myCamStartOpEye);
850 aCamera->SetCenter (myCamStartOpCenter);
b5ac8292 851
852 // rotate camera around 3 initial axes
c357e426 853 gp_Pnt aRCenter = aCamera->Eye();
854 gp_Dir aZAxis (aCamera->Direction().Reversed());
855 gp_Dir aYAxis (aCamera->Up());
b5ac8292 856 gp_Dir aXAxis (aYAxis.Crossed (aZAxis));
857
858 gp_Trsf aRot[3], aTrsf;
859 aRot[0].SetRotation (gp_Ax1 (aRCenter, aYAxis), -Ax);
860 aRot[1].SetRotation (gp_Ax1 (aRCenter, aXAxis), Ay);
861 aRot[2].SetRotation (gp_Ax1 (aRCenter, aZAxis), Az);
862 aTrsf.Multiply (aRot[0]);
863 aTrsf.Multiply (aRot[1]);
864 aTrsf.Multiply (aRot[2]);
865
c357e426 866 aCamera->Transform (aTrsf);
b5ac8292 867
c357e426 868 AutoZFit();
b5ac8292 869
870 ImmediateUpdate();
7fd59977 871}
872
197ac94e 873//=============================================================================
874//function : Turn
875//purpose :
876//=============================================================================
7fd59977 877void V3d_View::Turn(const V3d_TypeOfAxe Axe, const Standard_Real angle, const Standard_Boolean Start)
878{
7fd59977 879 switch (Axe) {
880 case V3d_X :
881 Turn(angle,0.,0.,Start);
882 break ;
883 case V3d_Y :
884 Turn(0.,angle,0.,Start);
885 break ;
886 case V3d_Z :
887 Turn(0.,0.,angle,Start);
888 break ;
889 }
890}
891
197ac94e 892//=============================================================================
893//function : Turn
894//purpose :
895//=============================================================================
b8ddfc2f 896void V3d_View::Turn(const Standard_Real angle, const Standard_Boolean Start)
897{
7fd59977 898 Standard_Real Angle = angle ;
7fd59977 899
900 if( Angle > 0. ) while ( Angle > DEUXPI ) Angle -= DEUXPI ;
901 else if( Angle < 0. ) while ( Angle < -DEUXPI ) Angle += DEUXPI ;
902
c357e426 903 Handle(Graphic3d_Camera) aCamera = Camera();
904
7fd59977 905 if( Start ) {
c357e426 906 myCamStartOpUp = aCamera->Up();
907 myCamStartOpEye = aCamera->Eye();
908 myCamStartOpCenter = aCamera->Center();
b5ac8292 909 }
910
c357e426 911 aCamera->SetUp (myCamStartOpUp);
912 aCamera->SetEye (myCamStartOpEye);
913 aCamera->SetCenter (myCamStartOpCenter);
b5ac8292 914
915 const Graphic3d_Vector& anAxis = MyDefaultViewAxis;
916
917 gp_Trsf aRotation;
c357e426 918 gp_Pnt aRCenter = aCamera->Eye();
b5ac8292 919 gp_Dir aRAxis (anAxis.X(), anAxis.Y(), anAxis.Z());
920 aRotation.SetRotation (gp_Ax1 (aRCenter, aRAxis), Angle);
b5ac8292 921
c357e426 922 aCamera->Transform (aRotation);
923
924 AutoZFit();
b5ac8292 925
926 ImmediateUpdate();
7fd59977 927}
928
197ac94e 929//=============================================================================
930//function : SetTwist
931//purpose :
932//=============================================================================
b8ddfc2f 933void V3d_View::SetTwist(const Standard_Real angle)
934{
7fd59977 935 Standard_Real Angle = angle ;
b5ac8292 936 Standard_Boolean TheStatus;
7fd59977 937
938 if( Angle > 0. ) while ( Angle > DEUXPI ) Angle -= DEUXPI ;
939 else if( Angle < 0. ) while ( Angle < -DEUXPI ) Angle += DEUXPI ;
940
c357e426 941 Handle(Graphic3d_Camera) aCamera = Camera();
942
943 gp_Dir aReferencePlane (aCamera->Direction().Reversed());
b5ac8292 944 gp_Dir anUp;
945
946 anUp = gp_Dir (0.0, 0.0, 1.0);
947
948 TheStatus = ScreenAxis(aReferencePlane, anUp,
949 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 950 if( !TheStatus ) {
b5ac8292 951 anUp = gp_Dir (0.0, 1.0, 0.0);
952 TheStatus = ScreenAxis(aReferencePlane, anUp,
953 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 954 }
955 if( !TheStatus ) {
b5ac8292 956 anUp = gp_Dir (1.0, 0.0, 0.0);
957 TheStatus = ScreenAxis(aReferencePlane, anUp,
958 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 959 }
960
6942f04a 961 V3d_BadValue_Raise_if( !TheStatus,"V3d_ViewSetTwist, alignment of Eye,At,Up,");
b5ac8292 962
c357e426 963 gp_Pnt aRCenter = aCamera->Center();
964 gp_Dir aZAxis (aCamera->Direction().Reversed());
b5ac8292 965
966 gp_Trsf aTrsf;
967 aTrsf.SetRotation (gp_Ax1 (aRCenter, aZAxis), Angle);
968
969 Standard_Real myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ;
970 myYscreenAxis.Coord (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ);
197ac94e 971
c357e426 972 aCamera->SetUp (gp_Dir (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ));
973 aCamera->Transform (aTrsf);
b5ac8292 974
c357e426 975 AutoZFit();
7fd59977 976
7fd59977 977 ImmediateUpdate();
7fd59977 978}
979
197ac94e 980//=============================================================================
197ac94e 981//function : SetEye
982//purpose :
983//=============================================================================
984void V3d_View::SetEye(const Standard_Real X,const Standard_Real Y,const Standard_Real Z)
985{
986 Standard_Real aTwistBefore = Twist();
7fd59977 987
197ac94e 988 Standard_Boolean wasUpdateEnabled = SetImmediateUpdate (Standard_False);
b5ac8292 989
c357e426 990 Handle(Graphic3d_Camera) aCamera = Camera();
991
992 aCamera->SetEye (gp_Pnt (X, Y, Z));
993
197ac94e 994 SetTwist (aTwistBefore);
b5ac8292 995
c357e426 996 AutoZFit();
b5ac8292 997
197ac94e 998 SetImmediateUpdate (wasUpdateEnabled);
999
b5ac8292 1000 ImmediateUpdate();
7fd59977 1001}
1002
197ac94e 1003//=============================================================================
1004//function : SetDepth
1005//purpose :
1006//=============================================================================
b8ddfc2f 1007void V3d_View::SetDepth(const Standard_Real Depth)
1008{
b5ac8292 1009 V3d_BadValue_Raise_if (Depth == 0. ,"V3d_View::SetDepth, bad depth");
7fd59977 1010
c357e426 1011 Handle(Graphic3d_Camera) aCamera = Camera();
1012
7fd59977 1013 if( Depth > 0. )
7fd59977 1014 {
b5ac8292 1015 // Move eye using center (target) as anchor.
c357e426 1016 aCamera->SetDistance (Depth);
b5ac8292 1017 }
1018 else
197ac94e 1019 {
b5ac8292 1020 // Move the view ref point instead of the eye.
c357e426 1021 gp_Vec aDir (aCamera->Direction());
1022 gp_Pnt aCameraEye = aCamera->Eye();
197ac94e 1023 gp_Pnt aCameraCenter = aCameraEye.Translated (aDir.Multiplied (Abs (Depth)));
1024
c357e426 1025 aCamera->SetCenter (aCameraCenter);
7fd59977 1026 }
7fd59977 1027
c357e426 1028 AutoZFit();
b5ac8292 1029
1030 ImmediateUpdate();
7fd59977 1031}
1032
197ac94e 1033//=============================================================================
1034//function : SetProj
1035//purpose :
1036//=============================================================================
7fd59977 1037void V3d_View::SetProj( const Standard_Real Vx,const Standard_Real Vy, const Standard_Real Vz )
1038{
6942f04a 1039 V3d_BadValue_Raise_if( Sqrt(Vx*Vx + Vy*Vy + Vz*Vz) <= 0.,
7fd59977 1040 "V3d_View::SetProj, null projection vector");
1041
197ac94e 1042 Standard_Real aTwistBefore = Twist();
b5ac8292 1043
197ac94e 1044 Standard_Boolean wasUpdateEnabled = SetImmediateUpdate (Standard_False);
b5ac8292 1045
c357e426 1046 Camera()->SetDirection (gp_Dir (Vx, Vy, Vz).Reversed());
b5ac8292 1047
1521659a 1048 SetTwist(aTwistBefore);
b5ac8292 1049
c357e426 1050 AutoZFit();
b5ac8292 1051
197ac94e 1052 SetImmediateUpdate (wasUpdateEnabled);
1053
7fd59977 1054 ImmediateUpdate();
7fd59977 1055}
1056
197ac94e 1057//=============================================================================
1058//function : SetProj
1059//purpose :
1060//=============================================================================
b8ddfc2f 1061void V3d_View::SetProj( const V3d_TypeOfOrientation Orientation )
1062{
7fd59977 1063 Standard_Real Xpn=0;
1064 Standard_Real Ypn=0;
1065 Standard_Real Zpn=0;
1066
1067 switch (Orientation) {
1068 case V3d_Zpos :
b5ac8292 1069 Ypn = 1.;
1070 break;
7fd59977 1071 case V3d_Zneg :
b5ac8292 1072 Ypn = -1.;
1073 break;
7fd59977 1074 default:
1075 Zpn = 1.;
1076 }
b5ac8292 1077
1078 const Graphic3d_Vector& aBck = V3d::GetProjAxis (Orientation);
197ac94e 1079
1080 // retain camera panning from origin when switching projection
c357e426 1081 Handle(Graphic3d_Camera) aCamera = Camera();
1082
1083 gp_Pnt anOriginVCS = aCamera->ConvertWorld2View (gp::Origin());
197ac94e 1084 Standard_Real aPanX = anOriginVCS.X();
1085 Standard_Real aPanY = anOriginVCS.Y();
1086
c357e426 1087 aCamera->SetCenter (gp_Pnt (0, 0, 0));
1088 aCamera->SetDirection (gp_Dir (aBck.X(), aBck.Y(), aBck.Z()).Reversed());
1089 aCamera->SetUp (gp_Dir (Xpn, Ypn, Zpn));
1090 aCamera->OrthogonalizeUp();
197ac94e 1091
1092 Panning (aPanX, aPanY);
b5ac8292 1093
c357e426 1094 AutoZFit();
b5ac8292 1095
7fd59977 1096 ImmediateUpdate();
7fd59977 1097}
1098
197ac94e 1099//=============================================================================
1100//function : SetAt
1101//purpose :
1102//=============================================================================
b8ddfc2f 1103void V3d_View::SetAt(const Standard_Real X,const Standard_Real Y,const Standard_Real Z)
1104{
197ac94e 1105 Standard_Real aTwistBefore = Twist();
b5ac8292 1106
197ac94e 1107 Standard_Boolean wasUpdateEnabled = SetImmediateUpdate (Standard_False);
b5ac8292 1108
c357e426 1109 Camera()->SetCenter (gp_Pnt (X, Y, Z));
b5ac8292 1110
197ac94e 1111 SetTwist (aTwistBefore);
b5ac8292 1112
c357e426 1113 AutoZFit();
b5ac8292 1114
197ac94e 1115 SetImmediateUpdate (wasUpdateEnabled);
1116
7fd59977 1117 ImmediateUpdate();
7fd59977 1118}
1119
197ac94e 1120//=============================================================================
1121//function : SetUp
1122//purpose :
1123//=============================================================================
b8ddfc2f 1124void V3d_View::SetUp(const Standard_Real Vx,const Standard_Real Vy,const Standard_Real Vz)
1125{
7fd59977 1126 Standard_Boolean TheStatus ;
6942f04a 1127 V3d_BadValue_Raise_if( Sqrt(Vx*Vx + Vy*Vy + Vz*Vz) <= 0. ,
7fd59977 1128 "V3d_View::SetUp, nullUp vector");
1129
c357e426 1130 Handle(Graphic3d_Camera) aCamera = Camera();
1131
1132 gp_Dir aReferencePlane (aCamera->Direction().Reversed());
b5ac8292 1133 gp_Dir anUp (Vx, Vy, Vz);
1134
1135 TheStatus = ScreenAxis(aReferencePlane,anUp,
1136 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 1137 if( !TheStatus ) {
b5ac8292 1138 anUp = gp_Dir (0.0, 0.0, 1.0);
1139 TheStatus = ScreenAxis(aReferencePlane,anUp,
1140 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 1141 }
1142 if( !TheStatus ) {
b5ac8292 1143 anUp = gp_Dir (0.0, 1.0, 0.0);
1144 TheStatus = ScreenAxis(aReferencePlane,anUp,
1145 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 1146 }
1147 if( !TheStatus ) {
b5ac8292 1148 anUp = gp_Dir (1.0, 0.0, 0.0);
1149 TheStatus = ScreenAxis(aReferencePlane,anUp,
1150 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 1151 }
6942f04a 1152 V3d_BadValue_Raise_if( !TheStatus,"V3d_View::Setup, alignment of Eye,At,Up");
7fd59977 1153
b5ac8292 1154 Standard_Real myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ;
1155 myYscreenAxis.Coord (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ);
1156
c357e426 1157 aCamera->SetUp (gp_Dir (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ));
197ac94e 1158
c357e426 1159 AutoZFit();
b5ac8292 1160
7fd59977 1161 ImmediateUpdate();
7fd59977 1162}
1163
197ac94e 1164//=============================================================================
1165//function : SetUp
1166//purpose :
1167//=============================================================================
b8ddfc2f 1168void V3d_View::SetUp( const V3d_TypeOfOrientation Orientation )
1169{
7fd59977 1170 Standard_Boolean TheStatus ;
1171
c357e426 1172 Handle(Graphic3d_Camera) aCamera = Camera();
1173
1174 gp_Dir aReferencePlane (aCamera->Direction().Reversed());
b5ac8292 1175 gp_Dir anUp;
1176
1177 const Graphic3d_Vector& aViewReferenceUp = V3d::GetProjAxis(Orientation) ;
1178 anUp = gp_Dir (aViewReferenceUp.X(), aViewReferenceUp.Y(), aViewReferenceUp.Z());
1179
1180 TheStatus = ScreenAxis(aReferencePlane,anUp,
1181 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 1182 if( !TheStatus ) {
b5ac8292 1183 anUp = gp_Dir (0.,0.,1.);
1184 TheStatus = ScreenAxis(aReferencePlane,anUp,
1185 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 1186 }
1187 if( !TheStatus ) {
b5ac8292 1188 anUp = gp_Dir (0.,1.,0.);
1189 TheStatus = ScreenAxis(aReferencePlane,anUp,
1190 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 1191 }
1192 if( !TheStatus ) {
b5ac8292 1193 anUp = gp_Dir (1.,0.,0.);
1194 TheStatus = ScreenAxis(aReferencePlane,anUp,
1195 myXscreenAxis,myYscreenAxis,myZscreenAxis) ;
7fd59977 1196 }
6942f04a 1197 V3d_BadValue_Raise_if( !TheStatus, "V3d_View::SetUp, alignment of Eye,At,Up");
7fd59977 1198
b5ac8292 1199 Standard_Real myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ;
1200 myYscreenAxis.Coord (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ);
1201
c357e426 1202 aCamera->SetUp (gp_Dir (myYscreenAxisX, myYscreenAxisY, myYscreenAxisZ));
197ac94e 1203
c357e426 1204 AutoZFit();
7fd59977 1205
7fd59977 1206 ImmediateUpdate();
1207}
1208
197ac94e 1209//=============================================================================
1210//function : SetViewOrientationDefault
1211//purpose :
1212//=============================================================================
b8ddfc2f 1213void V3d_View::SetViewOrientationDefault()
1214{
c357e426 1215 myDefaultCamera->CopyOrientationData (Camera());
1216}
b5ac8292 1217
c357e426 1218//=======================================================================
1219//function : SetViewMappingDefault
1220//purpose :
1221//=======================================================================
1222void V3d_View::SetViewMappingDefault()
1223{
1224 myDefaultCamera->CopyMappingData (Camera());
7fd59977 1225}
1226
197ac94e 1227//=============================================================================
1228//function : ResetViewOrientation
1229//purpose :
1230//=============================================================================
b8ddfc2f 1231void V3d_View::ResetViewOrientation()
1232{
c357e426 1233 Camera()->CopyOrientationData (myDefaultCamera);
1234
1235 AutoZFit();
1236
1237 ImmediateUpdate();
1238}
1239
1240//=======================================================================
1241//function : ResetViewMapping
1242//purpose :
1243//=======================================================================
1244void V3d_View::ResetViewMapping()
1245{
1246 Camera()->CopyMappingData (myDefaultCamera);
1247
1248 AutoZFit();
b5ac8292 1249
7fd59977 1250 ImmediateUpdate();
1251}
1252
197ac94e 1253//=============================================================================
1254//function : Reset
1255//purpose :
1256//=============================================================================
c357e426 1257void V3d_View::Reset (const Standard_Boolean theToUpdate)
b8ddfc2f 1258{
c357e426 1259 Camera()->Copy (myDefaultCamera);
197ac94e 1260
c357e426 1261 AutoZFit();
7fd59977 1262
7fd59977 1263 SwitchSetFront = Standard_False;
b5ac8292 1264
c357e426 1265 if (myImmediateUpdate || theToUpdate)
1266 {
1267 Update();
1268 }
7fd59977 1269}
1270
197ac94e 1271//=======================================================================
1272//function : SetCenter
1273//purpose :
1274//=======================================================================
1275void V3d_View::SetCenter (const Standard_Integer theXp,
1276 const Standard_Integer theYp)
b8ddfc2f 1277{
197ac94e 1278 Standard_Real aXv, aYv;
1279 Convert (theXp, theYp, aXv, aYv);
c357e426 1280 Translate (Camera(), aXv, aYv);
7fd59977 1281
7fd59977 1282 ImmediateUpdate();
7fd59977 1283}
1284
197ac94e 1285//=============================================================================
1286//function : SetSize
1287//purpose :
1288//=============================================================================
3dfe95cd 1289void V3d_View::SetSize (const Standard_Real theSize)
7fd59977 1290{
3dfe95cd 1291 V3d_BadValue_Raise_if (theSize <= 0.0, "V3d_View::SetSize, Window Size is NULL");
7fd59977 1292
c357e426 1293 Handle(Graphic3d_Camera) aCamera = Camera();
1294
1295 aCamera->SetScale (aCamera->Aspect() >= 1.0 ? theSize / aCamera->Aspect() : theSize);
197ac94e 1296
c357e426 1297 AutoZFit();
7fd59977 1298
7fd59977 1299 ImmediateUpdate();
7fd59977 1300}
1301
197ac94e 1302//=============================================================================
1303//function : SetZSize
1304//purpose :
1305//=============================================================================
c357e426 1306void V3d_View::SetZSize (const Standard_Real theSize)
7fd59977 1307{
c357e426 1308 Handle(Graphic3d_Camera) aCamera = Camera();
7fd59977 1309
c357e426 1310 Standard_Real Zmax = theSize / 2.;
b5ac8292 1311
c357e426 1312 Standard_Real aDistance = aCamera->Distance();
1313
1314 if (theSize <= 0.)
1315 {
b5ac8292 1316 Zmax = aDistance;
7fd59977 1317 }
7fd59977 1318
197ac94e 1319 // ShortReal precision factor used to add meaningful tolerance to
1320 // ZNear, ZFar values in order to avoid equality after type conversion
1321 // to ShortReal matrices type.
1322 const Standard_Real aPrecision = 1.0 / Pow (10.0, ShortRealDigits() - 1);
1323
1324 Standard_Real aZFar = Zmax + aDistance * 2.0;
1325 Standard_Real aZNear = -Zmax + aDistance;
1326 aZNear -= Abs (aZNear) * aPrecision;
1327 aZFar += Abs (aZFar) * aPrecision;
1328
c357e426 1329 if (!aCamera->IsOrthographic())
197ac94e 1330 {
1331 if (aZFar < aPrecision)
1332 {
1333 // Invalid case when both values are negative
1334 aZNear = aPrecision;
1335 aZFar = aPrecision * 2.0;
1336 }
1337 else if (aZNear < Abs (aZFar) * aPrecision)
1338 {
1339 // Z is less than 0.0, try to fix it using any appropriate z-scale
1340 aZNear = Abs (aZFar) * aPrecision;
1341 }
1342 }
1343
1344 // If range is too small
1345 if (aZFar < (aZNear + Abs (aZFar) * aPrecision))
1346 {
1347 aZFar = aZNear + Abs (aZFar) * aPrecision;
1348 }
1349
c357e426 1350 aCamera->SetZRange (aZNear, aZFar);
7fd59977 1351
c357e426 1352 if (myImmediateUpdate)
b8ddfc2f 1353 {
c357e426 1354 Redraw();
b8ddfc2f 1355 }
7fd59977 1356}
1357
197ac94e 1358//=============================================================================
1359//function : SetZoom
1360//purpose :
1361//=============================================================================
e44b0af4 1362void V3d_View::SetZoom (const Standard_Real theCoef,const Standard_Boolean theToStart)
7fd59977 1363{
e44b0af4 1364 V3d_BadValue_Raise_if (theCoef <= 0., "V3d_View::SetZoom, bad coefficient");
7fd59977 1365
c357e426 1366 Handle(Graphic3d_Camera) aCamera = Camera();
1367
e44b0af4 1368 if (theToStart)
b5ac8292 1369 {
c357e426 1370 myCamStartOpEye = aCamera->Eye();
1371 myCamStartOpCenter = aCamera->Center();
7fd59977 1372 }
1373
c357e426 1374 Standard_Real aViewWidth = aCamera->ViewDimensions().X();
1375 Standard_Real aViewHeight = aCamera->ViewDimensions().Y();
b5ac8292 1376
7fd59977 1377 // ensure that zoom will not be too small or too big
e44b0af4 1378 Standard_Real aCoef = theCoef;
1379 if (aViewWidth < aCoef * Precision::Confusion())
b5ac8292 1380 {
e44b0af4 1381 aCoef = aViewWidth / Precision::Confusion();
b5ac8292 1382 }
e44b0af4 1383 else if (aViewWidth > aCoef * 1e12)
b5ac8292 1384 {
e44b0af4 1385 aCoef = aViewWidth / 1e12;
b5ac8292 1386 }
e44b0af4 1387 if (aViewHeight < aCoef * Precision::Confusion())
b5ac8292 1388 {
e44b0af4 1389 aCoef = aViewHeight / Precision::Confusion();
b5ac8292 1390 }
e44b0af4 1391 else if (aViewHeight > aCoef * 1e12)
b5ac8292 1392 {
e44b0af4 1393 aCoef = aViewHeight / 1e12;
b5ac8292 1394 }
1395
c357e426 1396 aCamera->SetEye (myCamStartOpEye);
1397 aCamera->SetCenter (myCamStartOpCenter);
e44b0af4 1398 aCamera->SetScale (aCamera->Scale() / aCoef);
c357e426 1399
1400 AutoZFit();
b5ac8292 1401
7fd59977 1402 ImmediateUpdate();
1403}
1404
197ac94e 1405//=============================================================================
1406//function : SetScale
1407//purpose :
1408//=============================================================================
b8ddfc2f 1409void V3d_View::SetScale( const Standard_Real Coef )
1410{
6942f04a 1411 V3d_BadValue_Raise_if( Coef <= 0. ,"V3d_View::SetScale, bad coefficient");
7fd59977 1412
c357e426 1413 Handle(Graphic3d_Camera) aCamera = Camera();
b5ac8292 1414
c357e426 1415 Standard_Real aDefaultScale = myDefaultCamera->Scale();
1416 aCamera->SetAspect (myDefaultCamera->Aspect());
1417 aCamera->SetScale (aDefaultScale / Coef);
b5ac8292 1418
c357e426 1419 AutoZFit();
b5ac8292 1420
7fd59977 1421 ImmediateUpdate();
7fd59977 1422}
1423
197ac94e 1424//=============================================================================
1425//function : SetAxialScale
1426//purpose :
1427//=============================================================================
b8ddfc2f 1428void V3d_View::SetAxialScale( const Standard_Real Sx, const Standard_Real Sy, const Standard_Real Sz )
1429{
6942f04a 1430 V3d_BadValue_Raise_if( Sx <= 0. || Sy <= 0. || Sz <= 0.,"V3d_View::SetAxialScale, bad coefficient");
7fd59977 1431
c357e426 1432 Camera()->SetAxialScale (gp_XYZ (Sx, Sy, Sz));
1433
1434 AutoZFit();
1435}
1436
1437//=============================================================================
1438//function : SetRatio
1439//purpose :
1440//=============================================================================
1441void V3d_View::SetRatio()
1442{
1443 if (MyWindow.IsNull())
1444 {
1445 return;
1446 }
1447
1448 Standard_Integer aWidth = 0;
1449 Standard_Integer aHeight = 0;
1450 MyWindow->Size (aWidth, aHeight);
1451 if (aWidth > 0 && aHeight > 0)
1452 {
1453 Standard_Real aRatio = static_cast<Standard_Real> (aWidth) /
1454 static_cast<Standard_Real> (aHeight);
1455
1456 Camera() ->SetAspect (aRatio);
1457 myDefaultCamera->SetAspect (aRatio);
1458 }
7fd59977 1459}
1460
197ac94e 1461//=============================================================================
1462//function : FitAll
1463//purpose :
1464//=============================================================================
ee2be2a8 1465void V3d_View::FitAll (const Standard_Real theMargin, const Standard_Boolean theToUpdate)
7fd59977 1466{
c357e426 1467 FitAll (myView->MinMaxValues(), theMargin, theToUpdate);
b586500b 1468}
1469
1470//=============================================================================
1471//function : FitAll
1472//purpose :
1473//=============================================================================
ee2be2a8 1474void V3d_View::FitAll (const Bnd_Box& theBox, const Standard_Real theMargin, const Standard_Boolean theToUpdate)
b586500b 1475{
1476 Standard_ASSERT_RAISE(theMargin >= 0.0 && theMargin < 1.0, "Invalid margin coefficient");
197ac94e 1477
c357e426 1478 if (myView->NumberOfDisplayedStructures() == 0)
197ac94e 1479 {
1480 return;
1481 }
35617823 1482
c357e426 1483 if (!FitMinMax (Camera(), theBox, theMargin, 10.0 * Precision::Confusion()))
35617823 1484 {
35617823
K
1485 return;
1486 }
7fd59977 1487
c357e426 1488 AutoZFit();
b5ac8292 1489
197ac94e 1490 if (myImmediateUpdate || theToUpdate)
35617823 1491 {
b5ac8292 1492 Update();
35617823 1493 }
b5ac8292 1494}
35617823 1495
197ac94e 1496//=============================================================================
197ac94e 1497//function : DepthFitAll
1498//purpose :
1499//=============================================================================
ee2be2a8 1500void V3d_View::DepthFitAll(const Standard_Real Aspect,
1501 const Standard_Real Margin)
7fd59977 1502{
1503 Standard_Real Xmin,Ymin,Zmin,Xmax,Ymax,Zmax,U,V,W,U1,V1,W1 ;
1504 Standard_Real Umin,Vmin,Wmin,Umax,Vmax,Wmax ;
b5ac8292 1505 Standard_Real Dx,Dy,Dz,Size;
7fd59977 1506
c357e426 1507 Standard_Integer Nstruct = myView->NumberOfDisplayedStructures() ;
7fd59977 1508
b5ac8292 1509 if((Nstruct <= 0) || (Aspect < 0.) || (Margin < 0.) || (Margin > 1.)) {
7fd59977 1510 ImmediateUpdate();
1511 return ;
1512 }
1513
c357e426 1514 Bnd_Box aBox = myView->MinMaxValues();
ed063270 1515 if (aBox.IsVoid())
1516 {
1517 ImmediateUpdate();
1518 return ;
1519 }
1520 aBox.Get (Xmin,Ymin,Zmin,Xmax,Ymax,Zmax);
c357e426 1521 Project (Xmin,Ymin,Zmin,U,V,W) ;
1522 Project (Xmax,Ymax,Zmax,U1,V1,W1) ;
7fd59977 1523 Umin = Min(U,U1) ; Umax = Max(U,U1) ;
1524 Vmin = Min(V,V1) ; Vmax = Max(V,V1) ;
1525 Wmin = Min(W,W1) ; Wmax = Max(W,W1) ;
c357e426 1526 Project (Xmin,Ymin,Zmax,U,V,W) ;
7fd59977 1527 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
1528 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
1529 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 1530 Project (Xmax,Ymin,Zmax,U,V,W) ;
7fd59977 1531 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
1532 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
1533 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 1534 Project (Xmax,Ymin,Zmin,U,V,W) ;
7fd59977 1535 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
1536 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
1537 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 1538 Project (Xmax,Ymax,Zmin,U,V,W) ;
7fd59977 1539 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
1540 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
1541 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 1542 Project (Xmin,Ymax,Zmax,U,V,W) ;
7fd59977 1543 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
1544 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
1545 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 1546 Project (Xmin,Ymax,Zmin,U,V,W) ;
7fd59977 1547 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
1548 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
1549 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
1550
1551 // Adjust Z size
1552 Wmax = Max(Abs(Wmin),Abs(Wmax)) ;
1553 Dz = 2.*Wmax + Margin * Wmax;
1554
1555 // Compute depth value
1556 Dx = Abs(Umax - Umin) ; Dy = Abs(Vmax - Vmin) ; // Dz = Abs(Wmax - Wmin);
1557 Dx += Margin * Dx; Dy += Margin * Dy;
1558 Size = Sqrt(Dx*Dx + Dy*Dy + Dz*Dz);
1559 if( Size > 0. ) {
1560 SetZSize(Size) ;
1561 SetDepth( Aspect * Size / 2.);
1562 }
1563
1564 ImmediateUpdate();
1565}
1566
197ac94e 1567//=============================================================================
197ac94e 1568//function : WindowFitAll
1569//purpose :
1570//=============================================================================
1571void V3d_View::WindowFitAll(const Standard_Integer Xmin,
1572 const Standard_Integer Ymin,
1573 const Standard_Integer Xmax,
1574 const Standard_Integer Ymax)
b8ddfc2f 1575{
7fd59977 1576 WindowFit(Xmin,Ymin,Xmax,Ymax);
7fd59977 1577}
b8ddfc2f 1578
197ac94e 1579//=======================================================================
1580//function : WindowFit
1581//purpose :
1582//=======================================================================
1583void V3d_View::WindowFit (const Standard_Integer theMinXp,
1584 const Standard_Integer theMinYp,
1585 const Standard_Integer theMaxXp,
1586 const Standard_Integer theMaxYp)
b8ddfc2f 1587{
197ac94e 1588 Standard_Boolean wasUpdateEnabled = SetImmediateUpdate (Standard_False);
1589
c357e426 1590 Handle(Graphic3d_Camera) aCamera = Camera();
1591
1592 if (!aCamera->IsOrthographic())
b5ac8292 1593 {
ab1c121b 1594 // normalize view coordinates
b5ac8292 1595 Standard_Integer aWinWidth, aWinHeight;
1596 MyWindow->Size (aWinWidth, aWinHeight);
7fd59977 1597
b5ac8292 1598 // z coordinate of camera center
c357e426 1599 Standard_Real aDepth = aCamera->Project (aCamera->Center()).Z();
b5ac8292 1600
1601 // camera projection coordinate are in NDC which are normalized [-1, 1]
197ac94e 1602 Standard_Real aUMin = (2.0 / aWinWidth) * theMinXp - 1.0;
1603 Standard_Real aUMax = (2.0 / aWinWidth) * theMaxXp - 1.0;
1604 Standard_Real aVMin = (2.0 / aWinHeight) * theMinYp - 1.0;
1605 Standard_Real aVMax = (2.0 / aWinHeight) * theMaxYp - 1.0;
b5ac8292 1606
1607 // compute camera panning
1608 gp_Pnt aScreenCenter (0.0, 0.0, aDepth);
1609 gp_Pnt aFitCenter ((aUMin + aUMax) * 0.5, (aVMin + aVMax) * 0.5, aDepth);
c357e426 1610 gp_Pnt aPanTo = aCamera->ConvertProj2View (aFitCenter);
1611 gp_Pnt aPanFrom = aCamera->ConvertProj2View (aScreenCenter);
b5ac8292 1612 gp_Vec aPanVec (aPanFrom, aPanTo);
1613
b5ac8292 1614 // compute section size
1615 gp_Pnt aFitTopRight (aUMax, aVMax, aDepth);
1616 gp_Pnt aFitBotLeft (aUMin, aVMin, aDepth);
c357e426 1617 gp_Pnt aViewBotLeft = aCamera->ConvertProj2View (aFitBotLeft);
1618 gp_Pnt aViewTopRight = aCamera->ConvertProj2View (aFitTopRight);
b5ac8292 1619
1620 Standard_Real aUSize = aViewTopRight.X() - aViewBotLeft.X();
1621 Standard_Real aVSize = aViewTopRight.Y() - aViewBotLeft.Y();
1622
c357e426 1623 Translate (aCamera, aPanVec.X(), -aPanVec.Y());
1624 Scale (aCamera, aUSize, aVSize);
1625 AutoZFit();
b5ac8292 1626 }
1627 else
1628 {
197ac94e 1629 Standard_Real aX1, aY1, aX2, aY2;
1630 Convert (theMinXp, theMinYp, aX1, aY1);
1631 Convert (theMaxXp, theMaxYp, aX2, aY2);
1632 FitAll (aX1, aY1, aX2, aY2);
b5ac8292 1633 }
197ac94e 1634
1635 SetImmediateUpdate (wasUpdateEnabled);
1636
1637 ImmediateUpdate();
7fd59977 1638}
1639
197ac94e 1640//=======================================================================
197ac94e 1641//function : ConvertToGrid
1642//purpose :
1643//=======================================================================
1644void V3d_View::ConvertToGrid(const Standard_Integer Xp,
1645 const Standard_Integer Yp,
1646 Standard_Real& Xg,
1647 Standard_Real& Yg,
1648 Standard_Real& Zg) const
b5ac8292 1649{
1650 Graphic3d_Vertex aVrp;
1651 Standard_Real anX, anY, aZ;
1652 Convert (Xp, Yp, anX, anY, aZ);
1653 aVrp.SetCoord (anX, anY, aZ);
1654
1655 if( MyViewer->Grid()->IsActive() ) {
1656 Graphic3d_Vertex aNewVrp = Compute (aVrp) ;
1657 aNewVrp.Coord (Xg,Yg,Zg) ;
1658 } else
1659 aVrp.Coord (Xg,Yg,Zg) ;
1660}
1661
197ac94e 1662//=======================================================================
1663//function : ConvertToGrid
1664//purpose :
1665//=======================================================================
1666void V3d_View::ConvertToGrid(const Standard_Real X,
1667 const Standard_Real Y,
1668 const Standard_Real Z,
1669 Standard_Real& Xg,
1670 Standard_Real& Yg,
1671 Standard_Real& Zg) const
b5ac8292 1672{
1673 if( MyViewer->Grid()->IsActive() ) {
1674 Graphic3d_Vertex aVrp (X,Y,Z) ;
1675 Graphic3d_Vertex aNewVrp = Compute (aVrp) ;
1676 aNewVrp.Coord(Xg,Yg,Zg) ;
1677 } else {
1678 Xg = X; Yg = Y; Zg = Z;
1679 }
1680}
1681
197ac94e 1682//=======================================================================
1683//function : Convert
1684//purpose :
1685//=======================================================================
b8ddfc2f 1686Standard_Real V3d_View::Convert(const Standard_Integer Vp) const
1687{
b5ac8292 1688 Standard_Integer aDxw, aDyw ;
7fd59977 1689
c357e426 1690 V3d_UnMapped_Raise_if (!myView->IsDefined(), "view has no window");
7fd59977 1691
b5ac8292 1692 MyWindow->Size (aDxw, aDyw);
1693 Standard_Real aValue;
197ac94e 1694
c357e426 1695 gp_Pnt aViewDims = Camera()->ViewDimensions();
b5ac8292 1696 aValue = aViewDims.X() * (Standard_Real)Vp / (Standard_Real)aDxw;
7fd59977 1697
b5ac8292 1698 return aValue;
7fd59977 1699}
1700
197ac94e 1701//=======================================================================
1702//function : Convert
1703//purpose :
1704//=======================================================================
1705void V3d_View::Convert(const Standard_Integer Xp,
1706 const Standard_Integer Yp,
1707 Standard_Real& Xv,
1708 Standard_Real& Yv) const
b8ddfc2f 1709{
b5ac8292 1710 Standard_Integer aDxw, aDyw;
7fd59977 1711
c357e426 1712 V3d_UnMapped_Raise_if (!myView->IsDefined(), "view has no window");
b5ac8292 1713
1714 MyWindow->Size (aDxw, aDyw);
1715
1716 gp_Pnt aPoint (Xp * 2.0 / aDxw - 1.0, (aDyw - Yp) * 2.0 / aDyw - 1.0, 0.0);
c357e426 1717 aPoint = Camera()->ConvertProj2View (aPoint);
7fd59977 1718
b5ac8292 1719 Xv = aPoint.X();
1720 Yv = aPoint.Y();
7fd59977 1721}
1722
197ac94e 1723//=======================================================================
1724//function : Convert
1725//purpose :
1726//=======================================================================
7fd59977 1727Standard_Integer V3d_View::Convert(const Standard_Real Vv) const
1728{
c357e426 1729 V3d_UnMapped_Raise_if (!myView->IsDefined(), "view has no window");
b5ac8292 1730
1731 Standard_Integer aDxw, aDyw;
1732 MyWindow->Size (aDxw, aDyw);
7fd59977 1733
c357e426 1734 gp_Pnt aViewDims = Camera()->ViewDimensions();
b5ac8292 1735 Standard_Integer aValue = RealToInt (aDxw * Vv / (aViewDims.X()));
7fd59977 1736
b5ac8292 1737 return aValue;
7fd59977 1738}
1739
197ac94e 1740//=======================================================================
1741//function : Convert
1742//purpose :
1743//=======================================================================
1744void V3d_View::Convert(const Standard_Real Xv,
1745 const Standard_Real Yv,
1746 Standard_Integer& Xp,
1747 Standard_Integer& Yp) const
7fd59977 1748{
c357e426 1749 V3d_UnMapped_Raise_if (!myView->IsDefined(), "view has no window");
7fd59977 1750
b5ac8292 1751 Standard_Integer aDxw, aDyw;
1752 MyWindow->Size (aDxw, aDyw);
7fd59977 1753
b5ac8292 1754 gp_Pnt aPoint (Xv, Yv, 0.0);
c357e426 1755 aPoint = Camera()->ConvertView2Proj (aPoint);
b5ac8292 1756 aPoint = gp_Pnt ((aPoint.X() + 1.0) * aDxw / 2.0, aDyw - (aPoint.Y() + 1.0) * aDyw / 2.0, 0.0);
7fd59977 1757
b5ac8292 1758 Xp = RealToInt (aPoint.X());
1759 Yp = RealToInt (aPoint.Y());
7fd59977 1760}
1761
197ac94e 1762//=======================================================================
1763//function : Convert
1764//purpose :
1765//=======================================================================
1766void V3d_View::Convert(const Standard_Integer Xp,
1767 const Standard_Integer Yp,
1768 Standard_Real& X,
1769 Standard_Real& Y,
1770 Standard_Real& Z) const
b8ddfc2f 1771{
c357e426 1772 V3d_UnMapped_Raise_if (!myView->IsDefined(), "view has no window");
b5ac8292 1773 Standard_Integer aHeight, aWidth;
1774 MyWindow->Size (aWidth, aHeight);
1775
1776 Standard_Real anX = 2.0 * Xp / aWidth - 1.0;
1777 Standard_Real anY = 2.0 * (aHeight - 1 - Yp) / aHeight - 1.0;
1778 Standard_Real aZ = 2.0 * 0.0 - 1.0;
1779
c357e426 1780 gp_Pnt aResult = Camera()->UnProject (gp_Pnt (anX, anY, aZ));
b5ac8292 1781
1782 X = aResult.X();
1783 Y = aResult.Y();
1784 Z = aResult.Z();
7fd59977 1785}
1786
197ac94e 1787//=======================================================================
1788//function : ConvertWithProj
1789//purpose :
1790//=======================================================================
1791void V3d_View::ConvertWithProj(const Standard_Integer Xp,
1792 const Standard_Integer Yp,
1793 Standard_Real& X,
1794 Standard_Real& Y,
1795 Standard_Real& Z,
1796 Standard_Real& Dx,
1797 Standard_Real& Dy,
1798 Standard_Real& Dz) const
7fd59977 1799{
c357e426 1800 V3d_UnMapped_Raise_if (!myView->IsDefined(), "view has no window");
b5ac8292 1801 Standard_Integer aHeight, aWidth;
1802 MyWindow->Size (aWidth, aHeight);
7fd59977 1803
b5ac8292 1804 Standard_Real anX = 2.0 * Xp / aWidth - 1.0;
1805 Standard_Real anY = 2.0 * (aHeight - 1 - Yp) / aHeight - 1.0;
1806 Standard_Real aZ = 2.0 * 0.0 - 1.0;
7fd59977 1807
c357e426 1808 Handle(Graphic3d_Camera) aCamera = Camera();
1809
1810 gp_Pnt aResult = aCamera->UnProject (gp_Pnt (anX, anY, aZ));
b5ac8292 1811
1812 X = aResult.X();
1813 Y = aResult.Y();
1814 Z = aResult.Z();
1815
1816 Graphic3d_Vertex aVrp;
1817 aVrp.SetCoord (X, Y, Z);
1818
c357e426 1819 aResult = aCamera->UnProject (gp_Pnt (anX, anY, aZ - 10.0));
b5ac8292 1820
3910bc65 1821 Graphic3d_Vec3d aNormDir;
1822 aNormDir.x() = X - aResult.X();
1823 aNormDir.y() = Y - aResult.Y();
1824 aNormDir.z() = Z - aResult.Z();
1825 aNormDir.Normalize();
1826
1827 Dx = aNormDir.x();
1828 Dy = aNormDir.y();
1829 Dz = aNormDir.z();
7fd59977 1830}
7fd59977 1831
197ac94e 1832//=======================================================================
1833//function : Convert
1834//purpose :
1835//=======================================================================
1836void V3d_View::Convert(const Standard_Real X,
1837 const Standard_Real Y,
1838 const Standard_Real Z,
1839 Standard_Integer& Xp,
1840 Standard_Integer& Yp) const
b8ddfc2f 1841{
c357e426 1842 V3d_UnMapped_Raise_if (!myView->IsDefined(), "view has no window");
b5ac8292 1843 Standard_Integer aHeight, aWidth;
1844 MyWindow->Size (aWidth, aHeight);
1845
c357e426 1846 gp_Pnt aPoint = Camera()->Project (gp_Pnt (X, Y, Z));
b5ac8292 1847
1848 Xp = RealToInt ((aPoint.X() + 1) * 0.5 * aWidth);
72b11796 1849 Yp = RealToInt (aHeight - 1 - (aPoint.Y() + 1) * 0.5 * aHeight);
7fd59977 1850}
1851
197ac94e 1852//=======================================================================
1853//function : Project
1854//purpose :
1855//=======================================================================
c357e426 1856void V3d_View::Project (const Standard_Real theX,
1857 const Standard_Real theY,
1858 const Standard_Real theZ,
1859 Standard_Real& theXp,
1860 Standard_Real& theYp) const
7fd59977 1861{
c357e426 1862 Standard_Real aZp;
1863 Project (theX, theY, theZ, theXp, theYp, aZp);
1864}
1865
1866//=======================================================================
1867//function : Project
1868//purpose :
1869//=======================================================================
1870void V3d_View::Project (const Standard_Real theX,
1871 const Standard_Real theY,
1872 const Standard_Real theZ,
1873 Standard_Real& theXp,
1874 Standard_Real& theYp,
1875 Standard_Real& theZp) const
1876{
1877 Handle(Graphic3d_Camera) aCamera = Camera();
1878
1879 gp_XYZ aViewSpaceDimensions = aCamera->ViewDimensions();
1880 Standard_Real aXSize = aViewSpaceDimensions.X();
1881 Standard_Real aYSize = aViewSpaceDimensions.Y();
1882 Standard_Real aZSize = aViewSpaceDimensions.Z();
1883
1884 gp_Pnt aPoint = aCamera->Project (gp_Pnt (theX, theY, theZ));
1885
1886 // NDC [-1, 1] --> PROJ [ -size / 2, +size / 2 ]
1887 theXp = aPoint.X() * aXSize * 0.5;
1888 theYp = aPoint.Y() * aYSize * 0.5;
1889 theZp = aPoint.Z() * aZSize * 0.5;
7fd59977 1890}
1891
197ac94e 1892//=======================================================================
1893//function : BackgroundColor
1894//purpose :
1895//=======================================================================
1896void V3d_View::BackgroundColor(const Quantity_TypeOfColor Type,
1897 Standard_Real& V1,
1898 Standard_Real& V2,
1899 Standard_Real& V3) const
b8ddfc2f 1900{
7fd59977 1901 Quantity_Color C = BackgroundColor() ;
7fd59977 1902 C.Values(V1,V2,V3,Type) ;
1903}
1904
197ac94e 1905//=======================================================================
1906//function : BackgroundColor
1907//purpose :
1908//=======================================================================
b8ddfc2f 1909Quantity_Color V3d_View::BackgroundColor() const
1910{
c357e426 1911 return myView->Background().Color() ;
7fd59977 1912}
7fd59977 1913
197ac94e 1914//=======================================================================
1915//function : GradientBackgroundColors
1916//purpose :
1917//=======================================================================
c357e426 1918void V3d_View::GradientBackgroundColors (Quantity_Color& theColor1, Quantity_Color& theColor2) const
b8ddfc2f 1919{
c357e426 1920 myView->GradientBackground().Colors (theColor1, theColor2);
7fd59977 1921}
1922
197ac94e 1923//=======================================================================
1924//function : GradientBackground
1925//purpose :
1926//=======================================================================
b8ddfc2f 1927Aspect_GradientBackground V3d_View::GradientBackground() const
1928{
c357e426 1929 return myView->GradientBackground();
7fd59977 1930}
1931
197ac94e 1932//=======================================================================
1933//function : Scale
1934//purpose :
1935//=======================================================================
b8ddfc2f 1936Standard_Real V3d_View::Scale() const
1937{
c357e426 1938 return myDefaultCamera->Scale() / Camera()->Scale();
7fd59977 1939}
1940
197ac94e 1941//=======================================================================
1942//function : AxialScale
1943//purpose :
1944//=======================================================================
b8ddfc2f 1945void V3d_View::AxialScale(Standard_Real& Sx, Standard_Real& Sy, Standard_Real& Sz) const
1946{
c357e426 1947 gp_Pnt anAxialScale = Camera()->AxialScale();
b5ac8292 1948 Sx = anAxialScale.X();
1949 Sy = anAxialScale.Y();
1950 Sz = anAxialScale.Z();
7fd59977 1951}
1952
197ac94e 1953//=======================================================================
1954//function : Size
1955//purpose :
1956//=======================================================================
b8ddfc2f 1957void V3d_View::Size(Standard_Real& Width, Standard_Real& Height) const
1958{
c357e426 1959 gp_Pnt aViewDims = Camera()->ViewDimensions();
7fd59977 1960
b5ac8292 1961 Width = aViewDims.X();
1962 Height = aViewDims.Y();
7fd59977 1963}
1964
197ac94e 1965//=======================================================================
1966//function : ZSize
1967//purpose :
1968//=======================================================================
b8ddfc2f 1969Standard_Real V3d_View::ZSize() const
1970{
c357e426 1971 gp_Pnt aViewDims = Camera()->ViewDimensions();
7fd59977 1972
b5ac8292 1973 return aViewDims.Z();
7fd59977 1974}
1975
197ac94e 1976//=======================================================================
1977//function : MinMax
1978//purpose :
1979//=======================================================================
1980Standard_Integer V3d_View::MinMax(Standard_Real& Umin,
1981 Standard_Real& Vmin,
1982 Standard_Real& Umax,
1983 Standard_Real& Vmax) const
b8ddfc2f 1984{
7fd59977 1985 Standard_Real Wmin,Wmax,U,V,W ;
1986 Standard_Real Xmin,Ymin,Zmin,Xmax,Ymax,Zmax ;
1987 // CAL 6/11/98
c357e426 1988 Standard_Integer Nstruct = myView->NumberOfDisplayedStructures() ;
7fd59977 1989
1990 if( Nstruct ) {
c357e426 1991 Bnd_Box aBox = myView->MinMaxValues();
ed063270 1992 aBox.Get (Xmin,Ymin,Zmin,Xmax,Ymax,Zmax);
c357e426 1993 Project (Xmin,Ymin,Zmin,Umin,Vmin,Wmin) ;
1994 Project (Xmax,Ymax,Zmax,Umax,Vmax,Wmax) ;
1995 Project (Xmin,Ymin,Zmax,U,V,W) ;
7fd59977 1996 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
1997 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
1998 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 1999 Project (Xmax,Ymin,Zmax,U,V,W) ;
7fd59977 2000 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
2001 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
2002 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 2003 Project (Xmax,Ymin,Zmin,U,V,W) ;
7fd59977 2004 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
2005 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
2006 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 2007 Project (Xmax,Ymax,Zmin,U,V,W) ;
7fd59977 2008 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
2009 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
2010 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 2011 Project (Xmin,Ymax,Zmax,U,V,W) ;
7fd59977 2012 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
2013 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
2014 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
c357e426 2015 Project (Xmin,Ymax,Zmin,U,V,W) ;
7fd59977 2016 Umin = Min(U,Umin) ; Umax = Max(U,Umax) ;
2017 Vmin = Min(V,Vmin) ; Vmax = Max(V,Vmax) ;
2018 Wmin = Min(W,Wmin) ; Wmax = Max(W,Wmax) ;
2019 }
2020 return Nstruct ;
2021}
2022
197ac94e 2023//=======================================================================
2024//function : MinMax
2025//purpose :
2026//=======================================================================
2027Standard_Integer V3d_View::MinMax(Standard_Real& Xmin,
2028 Standard_Real& Ymin,
2029 Standard_Real& Zmin,
2030 Standard_Real& Xmax,
2031 Standard_Real& Ymax,
2032 Standard_Real& Zmax) const
b8ddfc2f 2033{
7fd59977 2034 // CAL 6/11/98
2035 // Standard_Integer Nstruct = (MyView->DisplayedStructures())->Extent() ;
c357e426 2036 Standard_Integer Nstruct = myView->NumberOfDisplayedStructures() ;
7fd59977 2037
2038 if( Nstruct ) {
c357e426 2039 Bnd_Box aBox = myView->MinMaxValues();
ed063270 2040 aBox.Get (Xmin,Ymin,Zmin,Xmax,Ymax,Zmax);
7fd59977 2041 }
2042 return Nstruct ;
2043}
2044
197ac94e 2045//=======================================================================
2046//function : Gravity
2047//purpose :
2048//=======================================================================
4af098ba 2049void V3d_View::Gravity (Standard_Real& theX,
2050 Standard_Real& theY,
2051 Standard_Real& theZ) const
b8ddfc2f 2052{
4af098ba 2053 Graphic3d_MapOfStructure aSetOfStructures;
c357e426 2054 myView->DisplayedStructures (aSetOfStructures);
4af098ba 2055
2056 Standard_Boolean hasSelection = Standard_False;
2057 for (Graphic3d_MapIteratorOfMapOfStructure aStructIter (aSetOfStructures);
2058 aStructIter.More(); aStructIter.Next())
2059 {
2060 if (aStructIter.Key()->IsHighlighted()
2061 && aStructIter.Key()->IsVisible())
2062 {
2063 hasSelection = Standard_True;
2064 break;
2065 }
2066 }
7fd59977 2067
4af098ba 2068 Standard_Real Xmin, Ymin, Zmin, Xmax, Ymax, Zmax;
2069 Standard_Integer aNbPoints = 0;
2070 gp_XYZ aResult (0.0, 0.0, 0.0);
2071 for (Graphic3d_MapIteratorOfMapOfStructure aStructIter (aSetOfStructures);
2072 aStructIter.More(); aStructIter.Next())
2073 {
2074 const Handle(Graphic3d_Structure)& aStruct = aStructIter.Key();
2075 if (!aStruct->IsVisible()
770fa4d4 2076 || aStruct->IsInfinite()
2077 || (hasSelection && !aStruct->IsHighlighted()))
4af098ba 2078 {
2079 continue;
2080 }
2081
7c3ef2f7 2082 const Graphic3d_BndBox3d& aBox = aStruct->CStructure()->BoundingBox();
770fa4d4 2083 if (!aBox.IsValid())
2084 {
2085 continue;
2086 }
2087
2088 // skip transformation-persistent objects
778cd667 2089 if (!aStruct->TransformPersistence().IsNull())
4af098ba 2090 {
2091 continue;
2092 }
2093
2094 // use camera projection to find gravity point
7c3ef2f7 2095 Xmin = aBox.CornerMin().x();
2096 Ymin = aBox.CornerMin().y();
2097 Zmin = aBox.CornerMin().z();
2098 Xmax = aBox.CornerMax().x();
2099 Ymax = aBox.CornerMax().y();
2100 Zmax = aBox.CornerMax().z();
4af098ba 2101 gp_Pnt aPnts[THE_NB_BOUND_POINTS] =
2102 {
2103 gp_Pnt (Xmin, Ymin, Zmin), gp_Pnt (Xmin, Ymin, Zmax),
2104 gp_Pnt (Xmin, Ymax, Zmin), gp_Pnt (Xmin, Ymax, Zmax),
2105 gp_Pnt (Xmax, Ymin, Zmin), gp_Pnt (Xmax, Ymin, Zmax),
2106 gp_Pnt (Xmax, Ymax, Zmin), gp_Pnt (Xmax, Ymax, Zmax)
2107 };
7fd59977 2108
4af098ba 2109 for (Standard_Integer aPntIt = 0; aPntIt < THE_NB_BOUND_POINTS; ++aPntIt)
2110 {
2111 const gp_Pnt& aBndPnt = aPnts[aPntIt];
c357e426 2112 const gp_Pnt aProjected = Camera()->Project (aBndPnt);
4af098ba 2113 if (Abs (aProjected.X()) <= 1.0
2114 && Abs (aProjected.Y()) <= 1.0)
2115 {
2116 aResult += aBndPnt.XYZ();
2117 ++aNbPoints;
2118 }
2119 }
2120 }
7fd59977 2121
4af098ba 2122 if (aNbPoints == 0)
b5ac8292 2123 {
770fa4d4 2124 // fallback - just use bounding box of entire scene
3fe9ce0e 2125 Bnd_Box aBox = myView->MinMaxValues();
770fa4d4 2126 if (!aBox.IsVoid())
b5ac8292 2127 {
4af098ba 2128 aBox.Get (Xmin, Ymin, Zmin,
2129 Xmax, Ymax, Zmax);
2130 gp_Pnt aPnts[THE_NB_BOUND_POINTS] =
2131 {
b5ac8292 2132 gp_Pnt (Xmin, Ymin, Zmin), gp_Pnt (Xmin, Ymin, Zmax),
2133 gp_Pnt (Xmin, Ymax, Zmin), gp_Pnt (Xmin, Ymax, Zmax),
2134 gp_Pnt (Xmax, Ymin, Zmin), gp_Pnt (Xmax, Ymin, Zmax),
4af098ba 2135 gp_Pnt (Xmax, Ymax, Zmin), gp_Pnt (Xmax, Ymax, Zmax)
2136 };
b5ac8292 2137
4af098ba 2138 for (Standard_Integer aPntIt = 0; aPntIt < THE_NB_BOUND_POINTS; ++aPntIt)
b5ac8292 2139 {
2140 const gp_Pnt& aBndPnt = aPnts[aPntIt];
4af098ba 2141 aResult += aBndPnt.XYZ();
2142 ++aNbPoints;
b5ac8292 2143 }
7fd59977 2144 }
2145 }
7fd59977 2146
4af098ba 2147 if (aNbPoints > 0)
2148 {
2149 aResult /= aNbPoints;
2150 }
2151 theX = aResult.X();
2152 theY = aResult.Y();
2153 theZ = aResult.Z();
7fd59977 2154}
2155
197ac94e 2156//=======================================================================
2157//function : Eye
2158//purpose :
2159//=======================================================================
b8ddfc2f 2160void V3d_View::Eye(Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const
2161{
c357e426 2162 gp_Pnt aCameraEye = Camera()->Eye();
b5ac8292 2163 X = aCameraEye.X();
2164 Y = aCameraEye.Y();
2165 Z = aCameraEye.Z();
7fd59977 2166}
2167
197ac94e 2168//=============================================================================
2169//function : FocalReferencePoint
2170//purpose :
2171//=============================================================================
b8ddfc2f 2172void V3d_View::FocalReferencePoint(Standard_Real& X, Standard_Real& Y,Standard_Real& Z) const
2173{
b5ac8292 2174 Eye (X,Y,Z);
7fd59977 2175}
2176
197ac94e 2177//=============================================================================
2178//function : ProjReferenceAxe
2179//purpose :
2180//=============================================================================
2181void V3d_View::ProjReferenceAxe(const Standard_Integer Xpix,
2182 const Standard_Integer Ypix,
2183 Standard_Real& XP,
2184 Standard_Real& YP,
2185 Standard_Real& ZP,
2186 Standard_Real& VX,
2187 Standard_Real& VY,
2188 Standard_Real& VZ) const
b8ddfc2f 2189{
7fd59977 2190 Standard_Real Xo,Yo,Zo;
2191
b5ac8292 2192 Convert (Xpix, Ypix, XP, YP, ZP);
2193 if ( Type() == V3d_PERSPECTIVE )
2194 {
2195 FocalReferencePoint (Xo,Yo,Zo);
7fd59977 2196 VX = Xo - XP;
2197 VY = Yo - YP;
2198 VZ = Zo - ZP;
2199 }
b5ac8292 2200 else
2201 {
2202 Proj (VX,VY,VZ);
7fd59977 2203 }
2204}
2205
197ac94e 2206//=============================================================================
2207//function : Depth
2208//purpose :
2209//=============================================================================
b8ddfc2f 2210Standard_Real V3d_View::Depth() const
2211{
c357e426 2212 return Camera()->Distance();
7fd59977 2213}
2214
197ac94e 2215//=============================================================================
2216//function : Proj
2217//purpose :
2218//=============================================================================
b8ddfc2f 2219void V3d_View::Proj(Standard_Real& Dx, Standard_Real& Dy, Standard_Real& Dz) const
2220{
c357e426 2221 gp_Dir aCameraDir = Camera()->Direction().Reversed();
b5ac8292 2222 Dx = aCameraDir.X();
2223 Dy = aCameraDir.Y();
2224 Dz = aCameraDir.Z();
7fd59977 2225}
2226
197ac94e 2227//=============================================================================
2228//function : At
2229//purpose :
2230//=============================================================================
b8ddfc2f 2231void V3d_View::At(Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const
2232{
c357e426 2233 gp_Pnt aCameraCenter = Camera()->Center();
b5ac8292 2234 X = aCameraCenter.X();
2235 Y = aCameraCenter.Y();
2236 Z = aCameraCenter.Z();
7fd59977 2237}
2238
197ac94e 2239//=============================================================================
2240//function : Up
2241//purpose :
2242//=============================================================================
b8ddfc2f 2243void V3d_View::Up(Standard_Real& Vx, Standard_Real& Vy, Standard_Real& Vz) const
2244{
c357e426 2245 gp_Dir aCameraUp = Camera()->Up();
b5ac8292 2246 Vx = aCameraUp.X();
2247 Vy = aCameraUp.Y();
2248 Vz = aCameraUp.Z();
7fd59977 2249}
2250
197ac94e 2251//=============================================================================
2252//function : Twist
2253//purpose :
2254//=============================================================================
b8ddfc2f 2255Standard_Real V3d_View::Twist() const
2256{
7fd59977 2257 Standard_Real Xup,Yup,Zup,Xpn,Ypn,Zpn,X0,Y0,Z0 ;
2258 Standard_Real pvx,pvy,pvz,pvn,sca,angle ;
b5ac8292 2259 Graphic3d_Vector Xaxis,Yaxis,Zaxis ;
7fd59977 2260 Standard_Boolean TheStatus ;
2261
c357e426 2262 gp_Dir aReferencePlane (Camera()->Direction().Reversed());
b5ac8292 2263 gp_Dir anUp;
2264
2265 Proj(Xpn,Ypn,Zpn);
2266 anUp = gp_Dir (0.,0.,1.) ;
2267 TheStatus = ScreenAxis (aReferencePlane, anUp,Xaxis,Yaxis,Zaxis) ;
7fd59977 2268 if( !TheStatus ) {
b5ac8292 2269 anUp = gp_Dir (0.,1.,0.) ;
2270 TheStatus = ScreenAxis (aReferencePlane, anUp,Xaxis,Yaxis,Zaxis) ;
7fd59977 2271 }
2272 if( !TheStatus ) {
b5ac8292 2273 anUp = gp_Dir (1.,0.,0.) ;
2274 TheStatus = ScreenAxis (aReferencePlane, anUp,Xaxis,Yaxis,Zaxis) ;
7fd59977 2275 }
2276 Yaxis.Coord(X0,Y0,Z0) ;
b5ac8292 2277
2278 Up(Xup,Yup,Zup) ;
7fd59977 2279 /* Compute Cross Vector From Up & Origin */
2280 pvx = Y0*Zup - Z0*Yup ;
2281 pvy = Z0*Xup - X0*Zup ;
2282 pvz = X0*Yup - Y0*Xup ;
2283 pvn = pvx*pvx + pvy*pvy + pvz*pvz ;
2284 sca = X0*Xup + Y0*Yup + Z0*Zup ;
2285 /* Compute Angle */
2286 angle = Sqrt(pvn) ;
2287 if( angle > 1. ) angle = 1. ;
2288 else if( angle < -1. ) angle = -1. ;
2289 angle = asin(angle) ;
c6541a0c
D
2290 if( sca < 0. ) angle = M_PI - angle ;
2291 if( angle > 0. && angle < M_PI ) {
7fd59977 2292 sca = pvx*Xpn + pvy*Ypn + pvz*Zpn ;
2293 if( sca < 0. ) angle = DEUXPI - angle ;
2294 }
2295 return angle ;
2296}
2297
197ac94e 2298//=============================================================================
2299//function : ShadingModel
2300//purpose :
2301//=============================================================================
b8ddfc2f 2302V3d_TypeOfShadingModel V3d_View::ShadingModel() const
2303{
c357e426 2304 return static_cast<V3d_TypeOfShadingModel> (myView->ShadingModel());
7fd59977 2305}
2306
197ac94e 2307//=============================================================================
197ac94e 2308//function : TextureEnv
2309//purpose :
2310//=============================================================================
857ffd5e 2311Handle(Graphic3d_TextureEnv) V3d_View::TextureEnv() const
b8ddfc2f 2312{
c357e426 2313 return myView->TextureEnv();
7fd59977 2314}
2315
197ac94e 2316//=============================================================================
2317//function : Visualization
2318//purpose :
2319//=============================================================================
b8ddfc2f 2320V3d_TypeOfVisualization V3d_View::Visualization() const
2321{
c357e426 2322 return static_cast<V3d_TypeOfVisualization> (myView->VisualizationType());
7fd59977 2323}
2324
197ac94e 2325//=============================================================================
197ac94e 2326//function : Viewer
2327//purpose :
2328//=============================================================================
b8ddfc2f 2329Handle(V3d_Viewer) V3d_View::Viewer() const
2330{
c357e426 2331 return MyViewer;
7fd59977 2332}
2333
197ac94e 2334//=============================================================================
2335//function : IfWindow
2336//purpose :
2337//=============================================================================
b8ddfc2f 2338Standard_Boolean V3d_View::IfWindow() const
2339{
c357e426 2340 return myView->IsDefined();
7fd59977 2341}
2342
197ac94e 2343//=============================================================================
2344//function : Window
2345//purpose :
2346//=============================================================================
b8ddfc2f 2347Handle(Aspect_Window) V3d_View::Window() const
2348{
7fd59977 2349 return MyWindow;
2350}
2351
197ac94e 2352//=============================================================================
2353//function : Type
2354//purpose :
2355//=============================================================================
b8ddfc2f 2356V3d_TypeOfView V3d_View::Type() const
2357{
c357e426 2358 return Camera()->IsOrthographic() ? V3d_ORTHOGRAPHIC : V3d_PERSPECTIVE;
7fd59977 2359}
2360
197ac94e 2361//=============================================================================
2362//function : SetFocale
2363//purpose :
2364//=============================================================================
b8ddfc2f 2365void V3d_View::SetFocale( const Standard_Real focale )
2366{
c357e426 2367 Handle(Graphic3d_Camera) aCamera = Camera();
2368
2369 if (aCamera->IsOrthographic())
b5ac8292 2370 {
2371 return;
7fd59977 2372 }
b5ac8292 2373
c357e426 2374 Standard_Real aFOVyRad = ATan (focale / (aCamera->Distance() * 2.0));
b5ac8292 2375
c357e426 2376 aCamera->SetFOVy (aFOVyRad * (360 / M_PI));
7fd59977 2377
2378 ImmediateUpdate();
2379}
2380
197ac94e 2381//=============================================================================
2382//function : Focale
2383//purpose :
2384//=============================================================================
b5ac8292 2385Standard_Real V3d_View::Focale() const
b8ddfc2f 2386{
c357e426 2387 Handle(Graphic3d_Camera) aCamera = Camera();
2388
2389 if (aCamera->IsOrthographic())
b5ac8292 2390 {
2391 return 0.0;
7fd59977 2392 }
b5ac8292 2393
c357e426 2394 return aCamera->Distance() * 2.0 * Tan (aCamera->FOVy() * M_PI / 360.0);
7fd59977 2395}
2396
197ac94e 2397//=============================================================================
2398//function : View
2399//purpose :
2400//=============================================================================
c357e426 2401Handle(Graphic3d_CView) V3d_View::View() const
7fd59977 2402{
c357e426 2403 return myView;
7fd59977 2404}
2405
197ac94e 2406//=============================================================================
2407//function : ScreenAxis
2408//purpose :
2409//=============================================================================
b5ac8292 2410Standard_Boolean V3d_View::ScreenAxis( const gp_Dir &Vpn, const gp_Dir &Vup, Graphic3d_Vector &Xaxe, Graphic3d_Vector &Yaxe, Graphic3d_Vector &Zaxe)
2411{
2412 Standard_Real Xpn, Ypn, Zpn, Xup, Yup, Zup;
2413 Standard_Real dx1, dy1, dz1, xx, yy, zz;
2414
2415 Xpn = Vpn.X(); Ypn = Vpn.Y(); Zpn = Vpn.Z();
2416 Xup = Vup.X(); Yup = Vup.Y(); Zup = Vup.Z();
2417 xx = Yup*Zpn - Zup*Ypn;
2418 yy = Zup*Xpn - Xup*Zpn;
2419 zz = Xup*Ypn - Yup*Xpn;
2420 Xaxe.SetCoord (xx, yy, zz);
2421 if (Xaxe.LengthZero()) return Standard_False;
2422 Xaxe.Normalize();
2423 Xaxe.Coord(dx1, dy1, dz1);
2424 xx = Ypn*dz1 - Zpn*dy1;
2425 yy = Zpn*dx1 - Xpn*dz1;
2426 zz = Xpn*dy1 - Ypn*dx1;
2427 Yaxe.SetCoord (xx, yy, zz) ;
2428 if (Yaxe.LengthZero()) return Standard_False;
2429 Yaxe.Normalize();
2430
2431 Zaxe.SetCoord (Xpn, Ypn, Zpn);
2432 Zaxe.Normalize();
7fd59977 2433 return Standard_True;
2434}
2435
197ac94e 2436//=============================================================================
2437//function : TrsPoint
2438//purpose :
2439//=============================================================================
b8ddfc2f 2440Graphic3d_Vertex V3d_View::TrsPoint( const Graphic3d_Vertex &P, const TColStd_Array2OfReal &Matrix )
2441{
7fd59977 2442 Graphic3d_Vertex PP ;
2443 Standard_Real X,Y,Z,XX,YY,ZZ ;
2444
2445 // CAL. S3892
2446 Standard_Integer lr, ur, lc, uc;
2447 lr = Matrix.LowerRow ();
2448 ur = Matrix.UpperRow ();
2449 lc = Matrix.LowerCol ();
2450 uc = Matrix.UpperCol ();
b5ac8292 2451 if ((ur - lr + 1 != 4) || (uc - lc + 1 != 4) ) {
7fd59977 2452 P.Coord(X,Y,Z) ;
2453 PP.SetCoord(X,Y,Z) ;
2454 return PP ;
2455 }
2456 P.Coord(X,Y,Z) ;
2457 XX = (Matrix(lr,lc+3) + X*Matrix(lr,lc) + Y*Matrix(lr,lc+1)+
2458 Z*Matrix(lr,lc+2))/Matrix(lr+3,lc+3) ;
2459
2460 YY = (Matrix(lr+1,lc+3) + X*Matrix(lr+1,lc) + Y*Matrix(lr+1,lc+1) +
2461 Z*Matrix(lr+1,lc+2))/Matrix(lr+3,lc+3) ;
2462
2463 ZZ = (Matrix(lr+2,lc+3) + X*Matrix(lr+2,lc) + Y*Matrix(lr+2,lc+1) +
2464 Z*Matrix(lr+2,lc+2))/Matrix(lr+3,lc+3) ;
2465 PP.SetCoord(XX,YY,ZZ) ;
2466 return PP ;
2467}
2468
197ac94e 2469//=======================================================================
2470//function : Pan
2471//purpose :
2472//=======================================================================
2473void V3d_View::Pan (const Standard_Integer theDXp,
2474 const Standard_Integer theDYp,
ee2be2a8 2475 const Standard_Real theZoomFactor,
197ac94e 2476 const Standard_Boolean theToStart)
b8ddfc2f 2477{
197ac94e 2478 Panning (Convert (theDXp), Convert (theDYp), theZoomFactor, theToStart);
7fd59977 2479}
2480
197ac94e 2481//=======================================================================
2482//function : Panning
2483//purpose :
2484//=======================================================================
2485void V3d_View::Panning (const Standard_Real theDXv,
2486 const Standard_Real theDYv,
ee2be2a8 2487 const Standard_Real theZoomFactor,
197ac94e 2488 const Standard_Boolean theToStart)
7fd59977 2489{
197ac94e 2490 Standard_ASSERT_RAISE (theZoomFactor > 0.0, "Bad zoom factor");
7fd59977 2491
c357e426 2492 Handle(Graphic3d_Camera) aCamera = Camera();
2493
197ac94e 2494 if (theToStart)
2495 {
c357e426 2496 myCamStartOpEye = aCamera->Eye();
2497 myCamStartOpCenter = aCamera->Center();
7fd59977 2498 }
197ac94e 2499
2500 Standard_Boolean wasUpdateEnabled = SetImmediateUpdate (Standard_False);
2501
c357e426 2502 gp_Pnt aViewDims = aCamera->ViewDimensions();
197ac94e 2503
c357e426 2504 aCamera->SetEye (myCamStartOpEye);
2505 aCamera->SetCenter (myCamStartOpCenter);
2506 Translate (aCamera, -theDXv, -theDYv);
2507 Scale (aCamera, aViewDims.X() / theZoomFactor, aViewDims.Y() / theZoomFactor);
197ac94e 2508
2509 SetImmediateUpdate (wasUpdateEnabled);
2510
2511 ImmediateUpdate();
7fd59977 2512}
2513
197ac94e 2514//=======================================================================
2515//function : Zoom
2516//purpose :
2517//=======================================================================
2518void V3d_View::Zoom (const Standard_Integer theXp1,
2519 const Standard_Integer theYp1,
2520 const Standard_Integer theXp2,
2521 const Standard_Integer theYp2)
2522{
2523 Standard_Integer aDx = theXp2 - theXp1;
2524 Standard_Integer aDy = theYp2 - theYp1;
2525 if (aDx != 0 || aDy != 0)
2526 {
2527 Standard_Real aCoeff = Sqrt( (Standard_Real)(aDx * aDx + aDy * aDy) ) / 100.0 + 1.0;
2528 aCoeff = (aDx > 0) ? aCoeff : 1.0 / aCoeff;
2529 SetZoom (aCoeff, Standard_True);
2530 }
7fd59977 2531}
2532
197ac94e 2533//=======================================================================
2534//function : StartZoomAtPoint
2535//purpose :
2536//=======================================================================
2537void V3d_View::StartZoomAtPoint (const Standard_Integer theXp,
2538 const Standard_Integer theYp)
7fd59977 2539{
197ac94e 2540 MyZoomAtPointX = theXp;
2541 MyZoomAtPointY = theYp;
7fd59977 2542}
2543
197ac94e 2544//=======================================================================
2545//function : ZoomAtPoint
2546//purpose :
2547//=======================================================================
2548void V3d_View::ZoomAtPoint (const Standard_Integer theMouseStartX,
2549 const Standard_Integer theMouseStartY,
2550 const Standard_Integer theMouseEndX,
2551 const Standard_Integer theMouseEndY)
7fd59977 2552{
197ac94e 2553 Standard_Boolean wasUpdateEnabled = SetImmediateUpdate (Standard_False);
7fd59977 2554
197ac94e 2555 // zoom
2556 Standard_Real aDxy = Standard_Real ((theMouseEndX + theMouseEndY) - (theMouseStartX + theMouseStartY));
2557 Standard_Real aDZoom = Abs (aDxy) / 100.0 + 1.0;
2558 aDZoom = (aDxy > 0.0) ? aDZoom : 1.0 / aDZoom;
7fd59977 2559
197ac94e 2560 V3d_BadValue_Raise_if (aDZoom <= 0.0, "V3d_View::ZoomAtPoint, bad coefficient");
7fd59977 2561
c357e426 2562 Handle(Graphic3d_Camera) aCamera = Camera();
2563
2564 Standard_Real aViewWidth = aCamera->ViewDimensions().X();
2565 Standard_Real aViewHeight = aCamera->ViewDimensions().Y();
7fd59977 2566
197ac94e 2567 // ensure that zoom will not be too small or too big.
2568 Standard_Real aCoef = aDZoom;
2569 if (aViewWidth < aCoef * Precision::Confusion())
2570 {
2571 aCoef = aViewWidth / Precision::Confusion();
2572 }
2573 else if (aViewWidth > aCoef * 1e12)
2574 {
2575 aCoef = aViewWidth / 1e12;
2576 }
2577 if (aViewHeight < aCoef * Precision::Confusion())
2578 {
2579 aCoef = aViewHeight / Precision::Confusion();
2580 }
2581 else if (aViewHeight > aCoef * 1e12)
2582 {
2583 aCoef = aViewHeight / 1e12;
2584 }
7fd59977 2585
197ac94e 2586 Standard_Real aZoomAtPointXv = 0.0;
2587 Standard_Real aZoomAtPointYv = 0.0;
2588 Convert (MyZoomAtPointX, MyZoomAtPointY, aZoomAtPointXv, aZoomAtPointYv);
7fd59977 2589
ee2be2a8 2590 Standard_Real aDxv = aZoomAtPointXv / aCoef;
2591 Standard_Real aDyv = aZoomAtPointYv / aCoef;
7fd59977 2592
c357e426 2593 aCamera->SetScale (aCamera->Scale() / aCoef);
2594 Translate (aCamera, aZoomAtPointXv - aDxv, aZoomAtPointYv - aDyv);
b5ac8292 2595
c357e426 2596 AutoZFit();
b5ac8292 2597
197ac94e 2598 SetImmediateUpdate (wasUpdateEnabled);
7fd59977 2599
197ac94e 2600 ImmediateUpdate();
7fd59977 2601}
2602
197ac94e 2603//=============================================================================
2604//function : AxialScale
2605//purpose :
2606//=============================================================================
7fd59977 2607void V3d_View::AxialScale (const Standard_Integer Dx,
2608 const Standard_Integer Dy,
2609 const V3d_TypeOfAxe Axis)
2610{
2611 if( Dx != 0. || Dy != 0. ) {
2612 Standard_Real Sx, Sy, Sz;
2613 AxialScale( Sx, Sy, Sz );
2614 Standard_Real dscale = Sqrt(Dx*Dx + Dy*Dy) / 100. + 1;
2615 dscale = (Dx > 0) ? dscale : 1./dscale;
2616 if( Axis == V3d_X ) Sx = dscale;
2617 if( Axis == V3d_Y ) Sy = dscale;
2618 if( Axis == V3d_Z ) Sz = dscale;
2619 SetAxialScale( Sx, Sy, Sz );
2620 }
2621}
2622
197ac94e 2623//=============================================================================
2624//function : FitAll
2625//purpose :
2626//=============================================================================
434ffc09 2627void V3d_View::FitAll(const Standard_Real theXmin,
2628 const Standard_Real theYmin,
2629 const Standard_Real theXmax,
2630 const Standard_Real theYmax)
7fd59977 2631{
434ffc09 2632 Handle(Graphic3d_Camera) aCamera = Camera();
2633 Standard_Real anAspect = aCamera->Aspect();
7fd59977 2634
434ffc09 2635 Standard_Real aFitSizeU = Abs (theXmax - theXmin);
2636 Standard_Real aFitSizeV = Abs (theYmax - theYmin);
197ac94e 2637 Standard_Real aFitAspect = aFitSizeU / aFitSizeV;
434ffc09 2638 if (aFitAspect >= anAspect)
197ac94e 2639 {
434ffc09 2640 aFitSizeV = aFitSizeU / anAspect;
197ac94e 2641 }
2642 else
2643 {
434ffc09 2644 aFitSizeU = aFitSizeV * anAspect;
197ac94e 2645 }
b5ac8292 2646
434ffc09 2647 Translate (aCamera, (theXmin + theXmax) * 0.5, (theYmin + theYmax) * 0.5);
c357e426 2648 Scale (aCamera, aFitSizeU, aFitSizeV);
2649
2650 AutoZFit();
7fd59977 2651
197ac94e 2652 ImmediateUpdate();
7fd59977 2653}
2654
197ac94e 2655//=============================================================================
2656//function : StartRotation
2657//purpose :
2658//=============================================================================
7fd59977 2659void V3d_View::StartRotation(const Standard_Integer X,
2660 const Standard_Integer Y,
ee2be2a8 2661 const Standard_Real zRotationThreshold)
7fd59977 2662{
7fd59977 2663 sx = X; sy = Y;
2664 Standard_Real x,y;
2665 Size(x,y);
2666 rx = Standard_Real(Convert(x));
2667 ry = Standard_Real(Convert(y));
2668 Gravity(gx,gy,gz);
2669 Rotate(0.,0.,0.,gx,gy,gz,Standard_True);
016e5959 2670 myZRotation = Standard_False;
7fd59977 2671 if( zRotationThreshold > 0. ) {
2672 Standard_Real dx = Abs(sx - rx/2.);
2673 Standard_Real dy = Abs(sy - ry/2.);
016e5959 2674 // if( dx > rx/3. || dy > ry/3. ) myZRotation = Standard_True;
7fd59977 2675 Standard_Real dd = zRotationThreshold * (rx + ry)/2.;
016e5959 2676 if( dx > dd || dy > dd ) myZRotation = Standard_True;
7fd59977 2677 }
7fd59977 2678
2679}
2680
197ac94e 2681//=============================================================================
2682//function : Rotation
2683//purpose :
2684//=============================================================================
7fd59977 2685void V3d_View::Rotation(const Standard_Integer X,
2686 const Standard_Integer Y)
2687{
7fd59977 2688 if( rx == 0. || ry == 0. ) {
2689 StartRotation(X,Y);
2690 return;
2691 }
7fd59977 2692 Standard_Real dx=0.,dy=0.,dz=0.;
016e5959 2693 if( myZRotation ) {
7fd59977 2694 dz = atan2(Standard_Real(X)-rx/2., ry/2.-Standard_Real(Y)) -
2695 atan2(sx-rx/2.,ry/2.-sy);
2696 } else {
c6541a0c
D
2697 dx = (Standard_Real(X) - sx) * M_PI / rx;
2698 dy = (sy - Standard_Real(Y)) * M_PI / ry;
7fd59977 2699 }
b12a3e54 2700
7fd59977 2701 Rotate(dx, dy, dz, gx, gy, gz, Standard_False);
7fd59977 2702}
2703
197ac94e 2704//=============================================================================
2705//function : SetComputedMode
2706//purpose :
2707//=============================================================================
c357e426 2708void V3d_View::SetComputedMode (const Standard_Boolean theMode)
7fd59977 2709{
c357e426 2710 if (theMode)
197ac94e 2711 {
2712 if (myComputedMode)
2713 {
c357e426 2714 myView->SetComputedMode (Standard_True);
197ac94e 2715 Update();
7fd59977 2716 }
c357e426 2717 }
2718 else
197ac94e 2719 {
c357e426 2720 myView->SetComputedMode (Standard_False);
197ac94e 2721 Update();
7fd59977 2722 }
b8ddfc2f 2723}
7fd59977 2724
197ac94e 2725//=============================================================================
2726//function : ComputedMode
2727//purpose :
2728//=============================================================================
2729Standard_Boolean V3d_View::ComputedMode() const
7fd59977 2730{
c357e426 2731 return myView->ComputedMode();
b8ddfc2f 2732}
7fd59977 2733
197ac94e 2734//=============================================================================
2735//function : SetBackFacingModel
2736//purpose :
2737//=============================================================================
c357e426 2738void V3d_View::SetBackFacingModel (const V3d_TypeOfBackfacingModel theModel)
7fd59977 2739{
c357e426 2740 myView->SetBackfacingModel (static_cast<Graphic3d_TypeOfBackfacingModel> (theModel));
7fd59977 2741 Redraw();
b8ddfc2f 2742}
7fd59977 2743
197ac94e 2744//=============================================================================
2745//function : BackFacingModel
2746//purpose :
2747//=============================================================================
2748V3d_TypeOfBackfacingModel V3d_View::BackFacingModel() const
b8ddfc2f 2749{
c357e426 2750 return static_cast<V3d_TypeOfBackfacingModel> (myView->BackfacingModel());
b8ddfc2f 2751}
7fd59977 2752
c357e426 2753//=============================================================================
2754//function : Init
2755//purpose :
2756//=============================================================================
b8ddfc2f 2757void V3d_View::Init()
2758{
7fd59977 2759 myComputedMode = MyViewer->ComputedMode();
c357e426 2760 if (!myComputedMode || !MyViewer->DefaultComputedMode())
2761 {
2762 SetComputedMode (Standard_False);
7fd59977 2763 }
7fd59977 2764}
2765
197ac94e 2766//=============================================================================
c357e426 2767//function : Export
2768//purpose :
2769//=============================================================================
2770Standard_Boolean V3d_View::Export (const Standard_CString theFileName,
2771 const Graphic3d_ExportFormat theFormat,
2772 const Graphic3d_SortType theSortType)
2773{
2774 return myView->Export (theFileName, theFormat, theSortType);
2775}
2776
2777//=============================================================================
197ac94e 2778//function : Dump
2779//purpose :
2780//=============================================================================
692613e5 2781Standard_Boolean V3d_View::Dump (const Standard_CString theFile,
2782 const Graphic3d_BufferType& theBufferType)
7fd59977 2783{
2784 Standard_Integer aWinWidth, aWinHeight;
2785 MyWindow->Size (aWinWidth, aWinHeight);
692613e5 2786 Image_AlienPixMap anImage;
b5ac8292 2787
692613e5 2788 return ToPixMap (anImage, aWinWidth, aWinHeight, theBufferType) && anImage.Save (theFile);
7fd59977 2789}
2790
197ac94e 2791//=============================================================================
2792//function : ToPixMap
2793//purpose :
2794//=============================================================================
692613e5 2795Standard_Boolean V3d_View::ToPixMap (Image_PixMap& theImage,
3bffef55 2796 const V3d_ImageDumpOptions& theParams)
7fd59977 2797{
3bffef55 2798 Graphic3d_Vec2i aTargetSize (theParams.Width, theParams.Height);
2799 if (aTargetSize.x() != 0
2800 && aTargetSize.y() != 0)
2801 {
2802 // allocate image buffer for dumping
2803 if (theImage.IsEmpty()
2804 || theImage.SizeX() != Standard_Size(aTargetSize.x())
2805 || theImage.SizeY() != Standard_Size(aTargetSize.y()))
2806 {
dc858f4c 2807 Image_Format aFormat = Image_Format_UNKNOWN;
3bffef55 2808 switch (theParams.BufferType)
2809 {
38d90bb3 2810 case Graphic3d_BT_RGB: aFormat = Image_Format_RGB; break;
2811 case Graphic3d_BT_RGBA: aFormat = Image_Format_RGBA; break;
2812 case Graphic3d_BT_Depth: aFormat = Image_Format_GrayF; break;
2813 case Graphic3d_BT_RGB_RayTraceHdrLeft: aFormat = Image_Format_RGBF; break;
3bffef55 2814 }
2815
2816 if (!theImage.InitZero (aFormat, Standard_Size(aTargetSize.x()), Standard_Size(aTargetSize.y())))
2817 {
2818 Message::DefaultMessenger()->Send (TCollection_AsciiString ("Fail to allocate an image ") + aTargetSize.x() + "x" + aTargetSize.y()
2819 + " for view dump", Message_Fail);
2820 return Standard_False;
2821 }
2822 }
2823 }
2824 if (theImage.IsEmpty())
2825 {
2826 Message::DefaultMessenger()->Send (TCollection_AsciiString ("V3d_View::ToPixMap() has been called without image dimensions"), Message_Fail);
2827 return Standard_False;
2828 }
2829 aTargetSize.x() = (Standard_Integer )theImage.SizeX();
2830 aTargetSize.y() = (Standard_Integer )theImage.SizeY();
2831
b128c892 2832 Handle(Standard_Transient) aFBOPtr;
2833 Handle(Standard_Transient) aPrevFBOPtr = myView->FBO();
3bffef55 2834 Graphic3d_Vec2i aFBOVPSize = aTargetSize;
2835
2836 bool isTiling = false;
2837 if (theParams.TileSize > 0)
2838 {
2839 if (aFBOVPSize.x() > theParams.TileSize
2840 || aFBOVPSize.y() > theParams.TileSize)
2841 {
2842 aFBOVPSize.x() = Min (aFBOVPSize.x(), theParams.TileSize);
2843 aFBOVPSize.y() = Min (aFBOVPSize.y(), theParams.TileSize);
2844 isTiling = true;
2845 }
2846 }
2847
2848 Graphic3d_Vec2i aPrevFBOVPSize;
b128c892 2849 if (!aPrevFBOPtr.IsNull())
7fd59977 2850 {
3bffef55 2851 Graphic3d_Vec2i aPrevFBOSizeMax;
c357e426 2852 myView->FBOGetDimensions (aPrevFBOPtr,
3bffef55 2853 aPrevFBOVPSize.x(), aPrevFBOVPSize.y(),
2854 aPrevFBOSizeMax.x(), aPrevFBOSizeMax.y());
2855 if (aFBOVPSize.x() <= aPrevFBOSizeMax.x()
2856 && aFBOVPSize.y() <= aPrevFBOSizeMax.y())
7fd59977 2857 {
7fd59977 2858 aFBOPtr = aPrevFBOPtr;
2859 }
2860 }
2861
b128c892 2862 if (aFBOPtr.IsNull())
7fd59977 2863 {
3bffef55 2864 Standard_Integer aMaxTexSize = MyViewer->Driver()->InquireLimit (Graphic3d_TypeOfLimit_MaxTextureSize);
2865 if (theParams.TileSize > aMaxTexSize)
85e096c3 2866 {
3bffef55 2867 Message::DefaultMessenger()->Send (TCollection_AsciiString ("Image dump can not be performed - specified tile size (")
2868 + theParams.TileSize + ") exceeds hardware limits (" + aMaxTexSize + ")", Message_Fail);
2869 return Standard_False;
85e096c3 2870 }
3bffef55 2871
2872 if (aFBOVPSize.x() > aMaxTexSize
2873 || aFBOVPSize.y() > aMaxTexSize)
2874 {
2875 aFBOVPSize.x() = Min (aFBOVPSize.x(), aMaxTexSize);
2876 aFBOVPSize.y() = Min (aFBOVPSize.y(), aMaxTexSize);
2877 isTiling = true;
2878 }
2879
2880 // Try to create hardware accelerated buffer
2881 aFBOPtr = myView->FBOCreate (aFBOVPSize.x(), aFBOVPSize.y());
7fd59977 2882 }
c357e426 2883 myView->SetFBO (aFBOPtr);
7fd59977 2884
b128c892 2885 if (aFBOPtr.IsNull())
7fd59977 2886 {
3bffef55 2887 // try to use on-screen buffer
2888 Graphic3d_Vec2i aWinSize;
2889 MyWindow->Size (aWinSize.x(), aWinSize.y());
2890 if (aFBOVPSize.x() != aWinSize.x()
2891 || aFBOVPSize.y() != aWinSize.y())
7fd59977 2892 {
3bffef55 2893 isTiling = true;
7fd59977 2894 }
3bffef55 2895 aFBOVPSize = aWinSize;
2896
2897 Message::DefaultMessenger()->Send (TCollection_AsciiString ("Warning, on screen buffer is used for image dump - content might be invalid"), Message_Warning);
7fd59977 2898 }
2899
3bffef55 2900 // backup camera parameters
b5ac8292 2901 Handle(Graphic3d_Camera) aStoreMapping = new Graphic3d_Camera();
c357e426 2902 Handle(Graphic3d_Camera) aCamera = Camera();
c357e426 2903 aStoreMapping->Copy (aCamera);
c357e426 2904 if (aCamera->IsStereo())
b5ac8292 2905 {
3bffef55 2906 switch (theParams.StereoOptions)
b5ac8292 2907 {
f978241f 2908 case V3d_SDO_MONO:
2909 {
c357e426 2910 aCamera->SetProjectionType (Graphic3d_Camera::Projection_Perspective);
b5ac8292 2911 break;
f978241f 2912 }
2913 case V3d_SDO_LEFT_EYE:
2914 {
c357e426 2915 aCamera->SetProjectionType (Graphic3d_Camera::Projection_MonoLeftEye);
b5ac8292 2916 break;
f978241f 2917 }
2918 case V3d_SDO_RIGHT_EYE:
2919 {
c357e426 2920 aCamera->SetProjectionType (Graphic3d_Camera::Projection_MonoRightEye);
b5ac8292 2921 break;
f978241f 2922 }
2923 case V3d_SDO_BLENDED:
2924 {
2925 break; // dump as is
2926 }
b5ac8292 2927 }
2928 }
3bffef55 2929 if (theParams.ToAdjustAspect)
197ac94e 2930 {
3bffef55 2931 aCamera->SetAspect (Standard_Real(aTargetSize.x()) / Standard_Real(aTargetSize.y()));
7fd59977 2932 }
3bffef55 2933 AutoZFit();
7fd59977 2934
3bffef55 2935 // render immediate structures into back buffer rather than front
2936 const Standard_Boolean aPrevImmediateMode = myView->SetImmediateModeDrawToFront (Standard_False);
7fd59977 2937
692613e5 2938 Standard_Boolean isSuccess = Standard_True;
3bffef55 2939 if (!isTiling)
7fd59977 2940 {
3bffef55 2941 if (!aFBOPtr.IsNull())
692613e5 2942 {
3bffef55 2943 myView->FBOChangeViewport (aFBOPtr, aTargetSize.x(), aTargetSize.y());
692613e5 2944 }
3bffef55 2945 Redraw();
2946 isSuccess = isSuccess && myView->BufferDump (theImage, theParams.BufferType);
2947 }
2948 else
2949 {
2950 Image_PixMap aTilePixMap;
2951 aTilePixMap.SetTopDown (theImage.IsTopDown());
692613e5 2952
3bffef55 2953 Graphic3d_Vec2i anOffset (0, 0);
2954 for (; anOffset.y() < aTargetSize.y(); anOffset.y() += aFBOVPSize.y())
2955 {
2956 anOffset.x() = 0;
2957 for (; anOffset.x() < aTargetSize.x(); anOffset.x() += aFBOVPSize.x())
2958 {
2959 Graphic3d_CameraTile aTile;
2960 aTile.Offset = anOffset;
2961 aTile.TotalSize = aTargetSize;
2962 aTile.TileSize = aFBOVPSize;
2963 if (!aFBOPtr.IsNull())
2964 {
2965 // crop corners in case of FBO
2966 // (no API to resize viewport of on-screen buffer - keep uncropped in this case)
2967 aTile = aTile.Cropped();
2968 }
2969 if (aTile.TileSize.x() < 1
2970 || aTile.TileSize.y() < 1)
2971 {
2972 continue;
2973 }
2974
2975 const Standard_Integer aLeft = aTile.Offset.x();
2976 Standard_Integer aBottom = aTile.Offset.y();
2977 if (theImage.IsTopDown())
2978 {
2979 const Standard_Integer aTop = aTile.Offset.y() + aTile.TileSize.y();
2980 aBottom = aTargetSize.y() - aTop;
2981 }
2982 aTilePixMap.InitWrapper (theImage.Format(), theImage.ChangeData()
2983 + theImage.SizeRowBytes() * aBottom + theImage.SizePixelBytes() * aLeft,
2984 aTile.TileSize.x(), aTile.TileSize.y(),
2985 theImage.SizeRowBytes());
2986
2987 aCamera->SetTile (aTile);
2988 if (!aFBOPtr.IsNull())
2989 {
2990 myView->FBOChangeViewport (aFBOPtr, aTile.TileSize.x(), aTile.TileSize.y());
2991 }
2992 Redraw();
2993 isSuccess = isSuccess && myView->BufferDump (aTilePixMap, theParams.BufferType);
2994 if (!isSuccess)
2995 {
2996 break;
2997 }
2998 }
2999 if (!isSuccess)
3000 {
3001 break;
3002 }
3003 }
7fd59977 3004 }
3005
3bffef55 3006 // restore state
3007 myView->SetImmediateModeDrawToFront (aPrevImmediateMode);
3008 aCamera->Copy (aStoreMapping);
7fd59977 3009 if (aFBOPtr != aPrevFBOPtr)
3010 {
c357e426 3011 myView->FBORelease (aFBOPtr);
7fd59977 3012 }
b128c892 3013 else if (!aPrevFBOPtr.IsNull())
7fd59977 3014 {
3bffef55 3015 myView->FBOChangeViewport (aPrevFBOPtr, aPrevFBOVPSize.x(), aPrevFBOVPSize.y());
7fd59977 3016 }
c357e426 3017 myView->SetFBO (aPrevFBOPtr);
692613e5 3018 return isSuccess;
7fd59977 3019}
6942f04a 3020
c357e426 3021//=============================================================================
3022//function : ImmediateUpdate
3023//purpose :
3024//=============================================================================
6942f04a 3025void V3d_View::ImmediateUpdate() const
3026{
c357e426 3027 if (myImmediateUpdate)
3028 {
3029 Update();
3030 }
6942f04a 3031}
3032
c357e426 3033//=============================================================================
3034//function : SetImmediateUpdate
3035//purpose :
3036//=============================================================================
6942f04a 3037Standard_Boolean V3d_View::SetImmediateUpdate (const Standard_Boolean theImmediateUpdate)
3038{
3039 Standard_Boolean aPreviousMode = myImmediateUpdate;
3040 myImmediateUpdate = theImmediateUpdate;
3041 return aPreviousMode;
3042}
b5ac8292 3043
3044// =======================================================================
3045// function : SetCamera
3046// purpose :
3047// =======================================================================
3048void V3d_View::SetCamera (const Handle(Graphic3d_Camera)& theCamera)
3049{
c357e426 3050 myView->SetCamera (theCamera);
197ac94e 3051
c357e426 3052 ImmediateUpdate();
b5ac8292 3053}
3054
3055// =======================================================================
3056// function : GetCamera
3057// purpose :
3058// =======================================================================
197ac94e 3059const Handle(Graphic3d_Camera)& V3d_View::Camera() const
b5ac8292 3060{
c357e426 3061 return myView->Camera();
b5ac8292 3062}
3063
3064// =======================================================================
197ac94e 3065// function : FitMinMax
3066// purpose : Internal
b5ac8292 3067// =======================================================================
197ac94e 3068Standard_Boolean V3d_View::FitMinMax (const Handle(Graphic3d_Camera)& theCamera,
ed063270 3069 const Bnd_Box& theBox,
197ac94e 3070 const Standard_Real theMargin,
3071 const Standard_Real theResolution,
3072 const Standard_Boolean theToEnlargeIfLine) const
3073{
3074 // Check bounding box for validness
ed063270 3075 if (theBox.IsVoid())
b5ac8292 3076 {
197ac94e 3077 return Standard_False; // bounding box is out of bounds...
3078 }
3079
3080 // Apply "axial scaling" to the bounding points.
3081 // It is not the best approach to make this scaling as a part of fit all operation,
3082 // but the axial scale is integrated into camera orientation matrix and the other
3083 // option is to perform frustum plane adjustment algorithm in view camera space,
3084 // which will lead to a number of additional world-view space conversions and
3085 // loosing precision as well.
ab1c121b 3086 gp_Pnt aBndMin = theBox.CornerMin().XYZ().Multiplied (theCamera->AxialScale());
3087 gp_Pnt aBndMax = theBox.CornerMax().XYZ().Multiplied (theCamera->AxialScale());
3088
3089 if (aBndMax.IsEqual (aBndMin, RealEpsilon()))
b5ac8292 3090 {
197ac94e 3091 return Standard_False; // nothing to fit all
3092 }
3093
ab1c121b 3094 // Prepare camera frustum planes.
3095 NCollection_Array1<gp_Pln> aFrustumPlane (1, 6);
3096 theCamera->Frustum (aFrustumPlane.ChangeValue (1),
3097 aFrustumPlane.ChangeValue (2),
3098 aFrustumPlane.ChangeValue (3),
3099 aFrustumPlane.ChangeValue (4),
3100 aFrustumPlane.ChangeValue (5),
3101 aFrustumPlane.ChangeValue (6));
197ac94e 3102
ab1c121b 3103 // Prepare camera up, side, direction vectors.
197ac94e 3104 gp_Dir aCamUp = theCamera->OrthogonalizedUp();
3105 gp_Dir aCamDir = theCamera->Direction();
3106 gp_Dir aCamSide = aCamDir ^ aCamUp;
3107
ab1c121b 3108 // Prepare scene bounding box parameters.
3109 gp_Pnt aBndCenter = (aBndMin.XYZ() + aBndMax.XYZ()) / 2.0;
3110
3111 NCollection_Array1<gp_Pnt> aBndCorner (1, 8);
3112 aBndCorner.ChangeValue (1) = gp_Pnt (aBndMin.X(), aBndMin.Y(), aBndMin.Z());
3113 aBndCorner.ChangeValue (2) = gp_Pnt (aBndMin.X(), aBndMin.Y(), aBndMax.Z());
3114 aBndCorner.ChangeValue (3) = gp_Pnt (aBndMin.X(), aBndMax.Y(), aBndMin.Z());
3115 aBndCorner.ChangeValue (4) = gp_Pnt (aBndMin.X(), aBndMax.Y(), aBndMax.Z());
3116 aBndCorner.ChangeValue (5) = gp_Pnt (aBndMax.X(), aBndMin.Y(), aBndMin.Z());
3117 aBndCorner.ChangeValue (6) = gp_Pnt (aBndMax.X(), aBndMin.Y(), aBndMax.Z());
3118 aBndCorner.ChangeValue (7) = gp_Pnt (aBndMax.X(), aBndMax.Y(), aBndMin.Z());
3119 aBndCorner.ChangeValue (8) = gp_Pnt (aBndMax.X(), aBndMax.Y(), aBndMax.Z());
3120
197ac94e 3121 // Perspective-correct camera projection vector, matching the bounding box is determined geometrically.
3122 // Knowing the initial shape of a frustum it is possible to match it to a bounding box.
3123 // Then, knowing the relation of camera projection vector to the frustum shape it is possible to
3124 // set up perspective-correct camera projection matching the bounding box.
3125 // These steps support non-asymmetric transformations of view-projection space provided by camera.
3126 // The zooming can be done by calculating view plane size matching the bounding box at center of
3127 // the bounding box. The only limitation here is that the scale of camera should define size of
3128 // its view plane passing through the camera center, and the center of camera should be on the
3129 // same line with the center of bounding box.
3130
3131 // The following method is applied:
3132 // 1) Determine normalized asymmetry of camera projection vector by frustum planes.
3133 // 2) Determine new location of frustum planes, "matching" the bounding box.
3134 // 3) Determine new camera projection vector using the normalized asymmetry.
3135 // 4) Determine new zooming in view space.
3136
ab1c121b 3137 // 1. Determine normalized projection asymmetry (if any).
bf02aa7d 3138 Standard_Real anAssymX = Tan (( aCamSide).Angle (aFrustumPlane (1).Axis().Direction()))
3139 - Tan ((-aCamSide).Angle (aFrustumPlane (2).Axis().Direction()));
3140 Standard_Real anAssymY = Tan (( aCamUp) .Angle (aFrustumPlane (3).Axis().Direction()))
3141 - Tan ((-aCamUp) .Angle (aFrustumPlane (4).Axis().Direction()));
ab1c121b 3142
3143 // 2. Determine how far should be the frustum planes placed from center
3144 // of bounding box, in order to match the bounding box closely.
3145 NCollection_Array1<Standard_Real> aFitDistance (1, 6);
3146 aFitDistance.ChangeValue (1) = 0.0;
3147 aFitDistance.ChangeValue (2) = 0.0;
3148 aFitDistance.ChangeValue (3) = 0.0;
3149 aFitDistance.ChangeValue (4) = 0.0;
3150 aFitDistance.ChangeValue (5) = 0.0;
3151 aFitDistance.ChangeValue (6) = 0.0;
3152
3153 for (Standard_Integer anI = aFrustumPlane.Lower(); anI <= aFrustumPlane.Upper(); ++anI)
197ac94e 3154 {
ab1c121b 3155 // Measure distances from center of bounding box to its corners towards the frustum plane.
3156 const gp_Dir& aPlaneN = aFrustumPlane.ChangeValue (anI).Axis().Direction();
197ac94e 3157
ab1c121b 3158 Standard_Real& aFitDist = aFitDistance.ChangeValue (anI);
197ac94e 3159
ab1c121b 3160 for (Standard_Integer aJ = aBndCorner.Lower(); aJ <= aBndCorner.Upper(); ++aJ)
3161 {
3162 aFitDist = Max (aFitDist, gp_Vec (aBndCenter, aBndCorner (aJ)).Dot (aPlaneN));
3163 }
197ac94e 3164 }
3165 // The center of camera is placed on the same line with center of bounding box.
3166 // The view plane section crosses the bounding box at its center.
3167 // To compute view plane size, evaluate coefficients converting "point -> plane distance"
3168 // into view section size between the point and the frustum plane.
3169 // proj
3170 // /|\ right half of frame //
3171 // | //
3172 // point o<-- distance * coeff -->//---- (view plane section)
3173 // \ //
3174 // (distance) //
3175 // ~ //
3176 // (distance) //
3177 // \/\//
3178 // \//
3179 // //
3180 // (frustum plane)
bf02aa7d 3181 aFitDistance.ChangeValue (1) *= Sqrt(1 + Pow (Tan ( aCamSide .Angle (aFrustumPlane (1).Axis().Direction())), 2.0));
3182 aFitDistance.ChangeValue (2) *= Sqrt(1 + Pow (Tan ((-aCamSide).Angle (aFrustumPlane (2).Axis().Direction())), 2.0));
3183 aFitDistance.ChangeValue (3) *= Sqrt(1 + Pow (Tan ( aCamUp .Angle (aFrustumPlane (3).Axis().Direction())), 2.0));
3184 aFitDistance.ChangeValue (4) *= Sqrt(1 + Pow (Tan ((-aCamUp) .Angle (aFrustumPlane (4).Axis().Direction())), 2.0));
3185 aFitDistance.ChangeValue (5) *= Sqrt(1 + Pow (Tan ( aCamDir .Angle (aFrustumPlane (5).Axis().Direction())), 2.0));
3186 aFitDistance.ChangeValue (6) *= Sqrt(1 + Pow (Tan ((-aCamDir) .Angle (aFrustumPlane (6).Axis().Direction())), 2.0));
ab1c121b 3187
3188 Standard_Real aViewSizeXv = aFitDistance (1) + aFitDistance (2);
3189 Standard_Real aViewSizeYv = aFitDistance (3) + aFitDistance (4);
3190 Standard_Real aViewSizeZv = aFitDistance (5) + aFitDistance (6);
3191
3192 // 3. Place center of camera on the same line with center of bounding
3193 // box applying corresponding projection asymmetry (if any).
197ac94e 3194 Standard_Real anAssymXv = anAssymX * aViewSizeXv * 0.5;
3195 Standard_Real anAssymYv = anAssymY * aViewSizeYv * 0.5;
ab1c121b 3196 Standard_Real anOffsetXv = (aFitDistance (2) - aFitDistance (1)) * 0.5 + anAssymXv;
3197 Standard_Real anOffsetYv = (aFitDistance (4) - aFitDistance (3)) * 0.5 + anAssymYv;
197ac94e 3198 gp_Vec aTranslateSide = gp_Vec (aCamSide) * anOffsetXv;
3199 gp_Vec aTranslateUp = gp_Vec (aCamUp) * anOffsetYv;
ab1c121b 3200 gp_Pnt aCamNewCenter = aBndCenter.Translated (aTranslateSide).Translated (aTranslateUp);
197ac94e 3201
3202 gp_Trsf aCenterTrsf;
ab1c121b 3203 aCenterTrsf.SetTranslation (theCamera->Center(), aCamNewCenter);
197ac94e 3204 theCamera->Transform (aCenterTrsf);
ab1c121b 3205 theCamera->SetDistance (aFitDistance (6) + aFitDistance (5));
197ac94e 3206
3207 // Bounding box collapses to a point or thin line going in depth of the screen
3208 if (aViewSizeXv < theResolution && aViewSizeYv < theResolution)
b5ac8292 3209 {
197ac94e 3210 if (aViewSizeXv < theResolution || !theToEnlargeIfLine)
3211 {
3212 return Standard_True; // This is just one point or line and zooming has no effect.
3213 }
3214
3215 // Looking along line and "theToEnlargeIfLine" is requested.
3216 // Fit view to see whole scene on rotation.