projects / occt.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
0026886: Visualization, TKV3d - eliminate global variables
[occt.git] / src / AIS / AIS_Dimension.cxx
CommitLineData
60bf98ae 1// Created on: 2013-11-11
2// Created by: Anastasia BORISOVA
d5f74e42 3// Copyright (c) 2013-2014 OPEN CASCADE SAS
a6eb515f 4//
973c2be1 5// This file is part of Open CASCADE Technology software library.
a6eb515f 6//
d5f74e42 7// This library is free software; you can redistribute it and/or modify it under
8// the terms of the GNU Lesser General Public License version 2.1 as published
973c2be1 9// by the Free Software Foundation, with special exception defined in the file
10// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11// distribution for complete text of the license and disclaimer of any warranty.
a6eb515f 12//
973c2be1 13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
a6eb515f 15
a6eb515f 16#include <AIS_Dimension.hxx>
d7bffd44 17
18#include <AIS.hxx>
a6eb515f 19#include <AIS_DimensionOwner.hxx>
a6eb515f 20#include <Adaptor3d_HCurve.hxx>
21#include <BRepAdaptor_Curve.hxx>
22#include <BRepAdaptor_Surface.hxx>
a6eb515f 23#include <BRepBndLib.hxx>
60bf98ae 24#include <Bnd_Box.hxx>
a6eb515f 25#include <ElCLib.hxx>
26#include <Font_BRepFont.hxx>
ac84fcf6 27#include <Font_BRepTextBuilder.hxx>
a6eb515f 28#include <GC_MakeCircle.hxx>
af203d54 29#include <Geom_Line.hxx>
fe83e1ea 30#include <GeomAdaptor_Curve.hxx>
a6eb515f 31#include <Geom_Circle.hxx>
a6eb515f 32#include <Geom_TrimmedCurve.hxx>
33#include <gce_MakeDir.hxx>
34#include <gce_MakeLin.hxx>
af203d54 35#include <gce_MakePln.hxx>
a6eb515f 36#include <Graphic3d_ArrayOfSegments.hxx>
37#include <Graphic3d_ArrayOfTriangles.hxx>
38#include <Graphic3d_AspectLine3d.hxx>
39#include <Graphic3d_AspectFillArea3d.hxx>
40#include <Graphic3d_AspectText3d.hxx>
41#include <Graphic3d_Group.hxx>
42#include <PrsMgr_PresentationManager3d.hxx>
43#include <Prs3d_Arrow.hxx>
44#include <Prs3d_ArrowAspect.hxx>
45#include <Prs3d_Drawer.hxx>
46#include <Prs3d_LineAspect.hxx>
47#include <Prs3d_Presentation.hxx>
48#include <Prs3d_Root.hxx>
49#include <Prs3d_ShadingAspect.hxx>
50#include <Prs3d_Text.hxx>
51#include <SelectMgr_EntityOwner.hxx>
52#include <SelectMgr_Selection.hxx>
53#include <SelectMgr_SequenceOfOwner.hxx>
a6eb515f 54#include <Select3D_SensitiveCircle.hxx>
55#include <Select3D_SensitiveGroup.hxx>
fe83e1ea 56#include <Select3D_SensitiveCurve.hxx>
a6eb515f 57#include <Select3D_SensitiveSegment.hxx>
fe83e1ea 58#include <Select3D_SensitiveTriangle.hxx>
51f8f60c 59#include <Select3D_SensitiveTriangulation.hxx>
60#include <Poly_Array1OfTriangle.hxx>
61#include <Poly_Triangulation.hxx>
a6eb515f 62#include <Standard_CString.hxx>
af203d54 63#include <Standard_ProgramError.hxx>
a6eb515f 64#include <StdPrs_ShadedShape.hxx>
65#include <StdPrs_WFShape.hxx>
66#include <TCollection_AsciiString.hxx>
67#include <TCollection_ExtendedString.hxx>
68#include <TopExp_Explorer.hxx>
69#include <TopoDS.hxx>
0499eb06 70#include <TopoDS_Edge.hxx>
a6eb515f 71#include <TopoDS_Vertex.hxx>
72#include <Units.hxx>
73#include <Units_UnitsDictionary.hxx>
74#include <UnitsAPI.hxx>
75#include <UnitsAPI_SystemUnits.hxx>
76
a6eb515f 77
92efcf78 78IMPLEMENT_STANDARD_RTTIEXT(AIS_Dimension,AIS_InteractiveObject)
79
d7bffd44 80namespace
a6eb515f 81{
fe83e1ea 82 // default text strings
d7bffd44 83 static const TCollection_ExtendedString THE_EMPTY_LABEL;
60bf98ae 84 static const TCollection_AsciiString THE_UNDEFINED_UNITS;
fe83e1ea 85
86 // default text margin and resolution
87 static const Standard_Real THE_3D_TEXT_MARGIN = 0.1;
88 static const unsigned int THE_2D_TEXT_RESOLUTION = 72;
89
90 // default selection priorities
91 static const Standard_Integer THE_NEUTRAL_SEL_PRIORITY = 5;
92 static const Standard_Integer THE_LOCAL_SEL_PRIORITY = 6;
a3f6f591 93}
a6eb515f 94
95//=======================================================================
96//function : Constructor
97//purpose :
98//=======================================================================
60bf98ae 99AIS_Dimension::AIS_Dimension (const AIS_KindOfDimension theType)
cbff1e55 100: AIS_InteractiveObject (),
101 mySelToleranceForText2d(0.0),
102 myCustomValue (0.0),
103 myIsValueCustom (Standard_False),
104 myIsTextPositionFixed (Standard_False),
105 mySpecialSymbol (' '),
a6eb515f 106 myDisplaySpecialSymbol (AIS_DSS_No),
cbff1e55 107 myGeometryType (GeometryType_UndefShapes),
108 myIsPlaneCustom (Standard_False),
109 myFlyout (0.0),
110 myIsGeometryValid (Standard_False),
111 myKindOfDimension (theType)
a6eb515f 112{
a6eb515f 113}
114
115//=======================================================================
60bf98ae 116//function : SetCustomValue
117//purpose :
a6eb515f 118//=======================================================================
60bf98ae 119void AIS_Dimension::SetCustomValue (const Standard_Real theValue)
a6eb515f 120{
60bf98ae 121 if (myIsValueCustom && myCustomValue == theValue)
122 {
123 return;
124 }
a6eb515f 125
60bf98ae 126 myIsValueCustom = Standard_True;
127
128 myCustomValue = theValue;
129
130 SetToUpdate();
a6eb515f 131}
132
133//=======================================================================
60bf98ae 134//function : GetPlane
a6eb515f 135//purpose :
136//=======================================================================
60bf98ae 137const gp_Pln& AIS_Dimension::GetPlane() const
a6eb515f 138{
60bf98ae 139 return myPlane;
a6eb515f 140}
141
a6eb515f 142//=======================================================================
60bf98ae 143//function : SetUserPlane
a6eb515f 144//purpose :
145//=======================================================================
60bf98ae 146void AIS_Dimension::SetCustomPlane (const gp_Pln& thePlane)
a6eb515f 147{
60bf98ae 148 myPlane = thePlane;
149 myIsPlaneCustom = Standard_True;
150
91b16a64 151 // Disable fixed (custom) text position
af203d54 152 UnsetFixedTextPosition();
153
60bf98ae 154 // Check validity if geometry has been set already.
91b16a64 155 if (IsValid())
60bf98ae 156 {
60bf98ae 157 SetToUpdate();
158 }
a6eb515f 159}
160
161//=======================================================================
60bf98ae 162//function : SetDimensionAspect
163//purpose :
a6eb515f 164//=======================================================================
60bf98ae 165void AIS_Dimension::SetDimensionAspect (const Handle(Prs3d_DimensionAspect)& theDimensionAspect)
a6eb515f 166{
60bf98ae 167 myDrawer->SetDimensionAspect (theDimensionAspect);
168
169 SetToUpdate();
a6eb515f 170}
171
172//=======================================================================
60bf98ae 173//function : SetDisplaySpecialSymbol
174//purpose :
a6eb515f 175//=======================================================================
60bf98ae 176void AIS_Dimension::SetDisplaySpecialSymbol (const AIS_DisplaySpecialSymbol theDisplaySpecSymbol)
a6eb515f 177{
60bf98ae 178 if (myDisplaySpecialSymbol == theDisplaySpecSymbol)
179 {
180 return;
181 }
182
183 myDisplaySpecialSymbol = theDisplaySpecSymbol;
184
185 SetToUpdate();
a6eb515f 186}
187
188//=======================================================================
60bf98ae 189//function : SetSpecialSymbol
a6eb515f 190//purpose :
191//=======================================================================
60bf98ae 192void AIS_Dimension::SetSpecialSymbol (const Standard_ExtCharacter theSpecialSymbol)
a6eb515f 193{
60bf98ae 194 if (mySpecialSymbol == theSpecialSymbol)
195 {
196 return;
197 }
198
199 mySpecialSymbol = theSpecialSymbol;
200
201 SetToUpdate();
a6eb515f 202}
203
204//=======================================================================
60bf98ae 205//function : SetSelToleranceForText2d
206//purpose :
a6eb515f 207//=======================================================================
60bf98ae 208void AIS_Dimension::SetSelToleranceForText2d (const Standard_Real theTol)
a6eb515f 209{
60bf98ae 210 if (mySelToleranceForText2d == theTol)
211 {
212 return;
213 }
214
215 mySelToleranceForText2d = theTol;
216
217 SetToUpdate();
a6eb515f 218}
219
220//=======================================================================
60bf98ae 221//function : SetFlyout
222//purpose :
a6eb515f 223//=======================================================================
60bf98ae 224void AIS_Dimension::SetFlyout (const Standard_Real theFlyout)
a6eb515f 225{
60bf98ae 226 if (myFlyout == theFlyout)
227 {
228 return;
229 }
a6eb515f 230
60bf98ae 231 myFlyout = theFlyout;
232
af203d54 233 // Disable fixed text position
234 UnsetFixedTextPosition();
235
60bf98ae 236 SetToUpdate();
237}
a6eb515f 238
239//=======================================================================
60bf98ae 240//function : GetDisplayUnits
241//purpose :
a6eb515f 242//=======================================================================
60bf98ae 243const TCollection_AsciiString& AIS_Dimension::GetDisplayUnits() const
a6eb515f 244{
60bf98ae 245 return THE_UNDEFINED_UNITS;
a6eb515f 246}
247
248//=======================================================================
60bf98ae 249//function : GetModelUnits
250//purpose :
a6eb515f 251//=======================================================================
60bf98ae 252const TCollection_AsciiString& AIS_Dimension::GetModelUnits() const
a6eb515f 253{
60bf98ae 254 return THE_UNDEFINED_UNITS;
a6eb515f 255}
256
257//=======================================================================
60bf98ae 258//function : ValueToDisplayUnits
259//purpose :
a6eb515f 260//=======================================================================
60bf98ae 261Standard_Real AIS_Dimension::ValueToDisplayUnits() const
a6eb515f 262{
60bf98ae 263 return UnitsAPI::AnyToAny (GetValue(),
264 GetModelUnits().ToCString(),
265 GetDisplayUnits().ToCString());
a6eb515f 266}
267
268//=======================================================================
60bf98ae 269//function : GetValueString
a6eb515f 270//purpose :
271//=======================================================================
60bf98ae 272TCollection_ExtendedString AIS_Dimension::GetValueString (Standard_Real& theWidth) const
a6eb515f 273{
60bf98ae 274 // format value string using "sprintf"
275 TCollection_AsciiString aFormatStr = myDrawer->DimensionAspect()->ValueStringFormat();
a6eb515f 276
60bf98ae 277 char aFmtBuffer[256];
278 sprintf (aFmtBuffer, aFormatStr.ToCString(), ValueToDisplayUnits());
279 TCollection_ExtendedString aValueStr = TCollection_ExtendedString (aFmtBuffer);
a6eb515f 280
60bf98ae 281 // add units to values string
282 if (myDrawer->DimensionAspect()->IsUnitsDisplayed())
a6eb515f 283 {
60bf98ae 284 aValueStr += " ";
285 aValueStr += TCollection_ExtendedString (GetDisplayUnits());
a6eb515f 286 }
60bf98ae 287
288 switch (myDisplaySpecialSymbol)
a6eb515f 289 {
60bf98ae 290 case AIS_DSS_Before : aValueStr.Insert (1, mySpecialSymbol); break;
291 case AIS_DSS_After : aValueStr.Insert (aValueStr.Length() + 1, mySpecialSymbol); break;
292 case AIS_DSS_No : break;
a6eb515f 293 }
294
d7bffd44 295 // Get text style parameters
a6eb515f 296 Quantity_Color aColor;
d7bffd44 297 Standard_CString aFontName;
a6eb515f 298 Standard_Real aFactor;
299 Standard_Real aSpace;
d7bffd44 300 myDrawer->DimensionAspect()->TextAspect()->Aspect()->Values (aColor, aFontName, aFactor, aSpace);
fe83e1ea 301 Font_FontAspect aFontAspect = myDrawer->DimensionAspect()->TextAspect()->Aspect()->GetTextFontAspect();
302 Standard_Real aFontHeight = myDrawer->DimensionAspect()->TextAspect()->Height();
303
60bf98ae 304 NCollection_Utf8String anUTFString = (Standard_Utf16Char* )aValueStr.ToExtString();
fe83e1ea 305
d7bffd44 306 theWidth = 0.0;
fe83e1ea 307
308 if (myDrawer->DimensionAspect()->IsText3d())
309 {
310 // text width produced by BRepFont
311 Font_BRepFont aFont (aFontName, aFontAspect, aFontHeight);
312
313 for (NCollection_Utf8Iter anIter = anUTFString.Iterator(); *anIter != 0; )
314 {
315 Standard_Utf32Char aCurrChar = *anIter;
316 Standard_Utf32Char aNextChar = *(++anIter);
317 theWidth += aFont.AdvanceX (aCurrChar, aNextChar);
318 }
319 }
320 else
d7bffd44 321 {
fe83e1ea 322 // Text width for 1:1 scale 2D case
60bf98ae 323 Handle(Font_FTFont) aFont = new Font_FTFont();
fe83e1ea 324 aFont->Init (aFontName, aFontAspect, (const unsigned int)aFontHeight, THE_2D_TEXT_RESOLUTION);
325
326 for (NCollection_Utf8Iter anIter = anUTFString.Iterator(); *anIter != 0; )
327 {
328 Standard_Utf32Char aCurrChar = *anIter;
329 Standard_Utf32Char aNextChar = *(++anIter);
330 theWidth += (Standard_Real) aFont->AdvanceX (aCurrChar, aNextChar);
331 }
d7bffd44 332 }
60bf98ae 333
334 return aValueStr;
a6eb515f 335}
336
337//=======================================================================
60bf98ae 338//function : DrawArrow
a6eb515f 339//purpose :
340//=======================================================================
60bf98ae 341void AIS_Dimension::DrawArrow (const Handle(Prs3d_Presentation)& thePresentation,
a6eb515f 342 const gp_Pnt& theLocation,
343 const gp_Dir& theDirection)
344{
345 Prs3d_Root::NewGroup (thePresentation);
fe83e1ea 346
347 Quantity_Length aLength = myDrawer->DimensionAspect()->ArrowAspect()->Length();
348 Standard_Real anAngle = myDrawer->DimensionAspect()->ArrowAspect()->Angle();
a6eb515f 349
350 if (myDrawer->DimensionAspect()->IsArrows3d())
351 {
352 Prs3d_Arrow::Draw (thePresentation,
353 theLocation,
d7bffd44 354 theDirection,
fe83e1ea 355 anAngle,
356 aLength);
a6eb515f 357 }
358 else
359 {
fe83e1ea 360 gp_Pnt aLeftPoint (gp::Origin());
361 gp_Pnt aRightPoint (gp::Origin());
60bf98ae 362 const gp_Dir& aPlane = GetPlane().Axis().Direction();
fe83e1ea 363
364 PointsForArrow (theLocation, theDirection, aPlane, aLength, anAngle, aLeftPoint, aRightPoint);
365
a6eb515f 366 Handle(Graphic3d_ArrayOfTriangles) anArrow = new Graphic3d_ArrayOfTriangles(3);
a6eb515f 367
368 anArrow->AddVertex (aLeftPoint);
369 anArrow->AddVertex (theLocation);
370 anArrow->AddVertex (aRightPoint);
371
372 // Set aspect for arrow triangles
373 Quantity_Color aColor;
374 Aspect_TypeOfLine aTOL;
375 Standard_Real aWidth;
376 myDrawer->DimensionAspect()->ArrowAspect()->Aspect()->Values (aColor, aTOL, aWidth);
377 Graphic3d_MaterialAspect aShadeMat (Graphic3d_NOM_DEFAULT);
378 aShadeMat.SetReflectionModeOff (Graphic3d_TOR_AMBIENT);
379 aShadeMat.SetReflectionModeOff (Graphic3d_TOR_DIFFUSE);
380 aShadeMat.SetReflectionModeOff (Graphic3d_TOR_SPECULAR);
d7bffd44 381
382 Handle(Prs3d_ShadingAspect) aShadingStyle = new Prs3d_ShadingAspect();
383 aShadingStyle->SetColor (aColor);
384 aShadingStyle->SetMaterial (aShadeMat);
385
386 Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aShadingStyle->Aspect());
387 Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (anArrow);
a6eb515f 388 }
fe83e1ea 389
390 SelectionGeometry::Arrow& aSensitiveArrow = mySelectionGeom.NewArrow();
391 aSensitiveArrow.Position = theLocation;
392 aSensitiveArrow.Direction = theDirection;
a6eb515f 393}
394
395//=======================================================================
7c65581d 396//function : drawText
397//purpose :
a6eb515f 398//=======================================================================
7c65581d 399void AIS_Dimension::drawText (const Handle(Prs3d_Presentation)& thePresentation,
fe83e1ea 400 const gp_Pnt& theTextPos,
401 const gp_Dir& theTextDir,
402 const TCollection_ExtendedString& theText,
403 const Standard_Integer theLabelPosition)
a6eb515f 404{
a6eb515f 405 if (myDrawer->DimensionAspect()->IsText3d())
406 {
fe83e1ea 407 // getting font parameters
a6eb515f 408 Quantity_Color aColor;
409 Standard_CString aFontName;
410 Standard_Real anExpansionFactor;
411 Standard_Real aSpace;
412 myDrawer->DimensionAspect()->TextAspect()->Aspect()->Values (aColor, aFontName, anExpansionFactor, aSpace);
413 Font_FontAspect aFontAspect = myDrawer->DimensionAspect()->TextAspect()->Aspect()->GetTextFontAspect();
fe83e1ea 414 Standard_Real aFontHeight = myDrawer->DimensionAspect()->TextAspect()->Height();
a6eb515f 415
fe83e1ea 416 // creating TopoDS_Shape for text
417 Font_BRepFont aFont (aFontName, aFontAspect, aFontHeight);
418 NCollection_Utf8String anUTFString = (Standard_Utf16Char* )theText.ToExtString();
ac84fcf6 419
420 Font_BRepTextBuilder aBuilder;
421 TopoDS_Shape aTextShape = aBuilder.Perform (aFont, anUTFString);
a6eb515f 422
fe83e1ea 423 // compute text width with kerning
424 Standard_Real aTextWidth = 0.0;
425 Standard_Real aTextHeight = aFont.Ascender() + aFont.Descender();
d7bffd44 426
fe83e1ea 427 for (NCollection_Utf8Iter anIter = anUTFString.Iterator(); *anIter != 0; )
428 {
429 Standard_Utf32Char aCurrChar = *anIter;
430 Standard_Utf32Char aNextChar = *(++anIter);
431 aTextWidth += aFont.AdvanceX (aCurrChar, aNextChar);
432 }
433
434 // formating text position in XOY plane
d7bffd44 435 Standard_Integer aHLabelPos = theLabelPosition & LabelPosition_HMask;
436 Standard_Integer aVLabelPos = theLabelPosition & LabelPosition_VMask;
437
438 gp_Dir aTextDir (aHLabelPos == LabelPosition_Left ? -theTextDir : theTextDir);
439
440 // compute label offsets
fe83e1ea 441 Standard_Real aMarginSize = aFontHeight * THE_3D_TEXT_MARGIN;
d7bffd44 442 Standard_Real aCenterHOffset = 0.0;
443 Standard_Real aCenterVOffset = 0.0;
444 switch (aHLabelPos)
a6eb515f 445 {
d7bffd44 446 case LabelPosition_HCenter : aCenterHOffset = 0.0; break;
447 case LabelPosition_Right : aCenterHOffset = aTextWidth / 2.0 + aMarginSize; break;
448 case LabelPosition_Left : aCenterHOffset = -aTextWidth / 2.0 - aMarginSize; break;
a6eb515f 449 }
d7bffd44 450 switch (aVLabelPos)
a6eb515f 451 {
d7bffd44 452 case LabelPosition_VCenter : aCenterVOffset = 0.0; break;
453 case LabelPosition_Above : aCenterVOffset = aTextHeight / 2.0 + aMarginSize; break;
454 case LabelPosition_Below : aCenterVOffset = -aTextHeight / 2.0 - aMarginSize; break;
a6eb515f 455 }
d7bffd44 456
457 // compute shape offset transformation
fe83e1ea 458 Standard_Real aShapeHOffset = aCenterHOffset - aTextWidth / 2.0;
d7bffd44 459 Standard_Real aShapeVOffset = aCenterVOffset - aTextHeight / 2.0;
460
fe83e1ea 461 // center shape in its bounding box (suppress border spacing added by FT_Font)
462 Bnd_Box aShapeBnd;
463 BRepBndLib::AddClose (aTextShape, aShapeBnd);
464
465 Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
466 aShapeBnd.Get (aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
467
468 Standard_Real aXalign = aTextWidth * 0.5 - (aXmax + aXmin) * 0.5;
469 Standard_Real aYalign = aTextHeight * 0.5 - (aYmax + aYmin) * 0.5;
470 aShapeHOffset += aXalign;
471 aShapeVOffset += aYalign;
472
d7bffd44 473 gp_Trsf anOffsetTrsf;
474 anOffsetTrsf.SetTranslation (gp::Origin(), gp_Pnt (aShapeHOffset, aShapeVOffset, 0.0));
475 aTextShape.Move (anOffsetTrsf);
a6eb515f 476
fe83e1ea 477 // transform text to myWorkingPlane coordinate system
60bf98ae 478 gp_Ax3 aTextCoordSystem (theTextPos, GetPlane().Axis().Direction(), aTextDir);
d7bffd44 479 gp_Trsf aTextPlaneTrsf;
480 aTextPlaneTrsf.SetTransformation (aTextCoordSystem, gp_Ax3 (gp::XOY()));
481 aTextShape.Move (aTextPlaneTrsf);
a6eb515f 482
fe83e1ea 483 // set text flipping anchors
d7bffd44 484 gp_Trsf aCenterOffsetTrsf;
485 gp_Pnt aCenterOffset (aCenterHOffset, aCenterVOffset, 0.0);
486 aCenterOffsetTrsf.SetTranslation (gp::Origin(), aCenterOffset);
487
fe83e1ea 488 gp_Pnt aCenterOfLabel (gp::Origin());
489 aCenterOfLabel.Transform (aCenterOffsetTrsf);
490 aCenterOfLabel.Transform (aTextPlaneTrsf);
d7bffd44 491
60bf98ae 492 gp_Ax2 aFlippingAxes (aCenterOfLabel, GetPlane().Axis().Direction(), aTextDir);
d7bffd44 493 Prs3d_Root::CurrentGroup (thePresentation)->SetFlippingOptions (Standard_True, aFlippingAxes);
494
fe83e1ea 495 // draw text
a6eb515f 496 if (myDrawer->DimensionAspect()->IsTextShaded())
497 {
498 // Setting text shading and color parameters
d2dfbc4d 499 if (!myDrawer->HasOwnShadingAspect())
500 {
501 myDrawer->SetShadingAspect (new Prs3d_ShadingAspect());
502 }
503
a6eb515f 504 Graphic3d_MaterialAspect aShadeMat (Graphic3d_NOM_DEFAULT);
505 aShadeMat.SetReflectionModeOff (Graphic3d_TOR_AMBIENT);
506 aShadeMat.SetReflectionModeOff (Graphic3d_TOR_DIFFUSE);
507 aShadeMat.SetReflectionModeOff (Graphic3d_TOR_SPECULAR);
508 myDrawer->ShadingAspect()->Aspect()->SetInteriorColor (aColor);
509 myDrawer->ShadingAspect()->Aspect()->SetBackInteriorColor (aColor);
510 myDrawer->ShadingAspect()->SetMaterial (aShadeMat);
511
fe83e1ea 512 // drawing text
a6eb515f 513 StdPrs_ShadedShape::Add (thePresentation, aTextShape, myDrawer);
514 }
515 else
516 {
d2dfbc4d 517 // Setting color for text
518 if (!myDrawer->HasOwnFreeBoundaryAspect())
519 {
520 myDrawer->SetFreeBoundaryAspect (new Prs3d_LineAspect (aColor, Aspect_TOL_SOLID, 1.0));
521 }
522
a6eb515f 523 myDrawer->FreeBoundaryAspect()->Aspect()->SetColor (aColor);
d2dfbc4d 524
fe83e1ea 525 // drawing text
a6eb515f 526 StdPrs_WFShape::Add (thePresentation, aTextShape, myDrawer);
527 }
d7bffd44 528 Prs3d_Root::CurrentGroup (thePresentation)->SetFlippingOptions (Standard_False, gp_Ax2());
529
fe83e1ea 530 mySelectionGeom.TextPos = aCenterOfLabel;
531 mySelectionGeom.TextDir = aTextDir;
532 mySelectionGeom.TextWidth = aTextWidth + aMarginSize * 2.0;
533 mySelectionGeom.TextHeight = aTextHeight;
534
535 return;
a6eb515f 536 }
537
fe83e1ea 538 // generate primitives for 2D text
d7bffd44 539 myDrawer->DimensionAspect()->TextAspect()->Aspect()->SetDisplayType (Aspect_TODT_DIMENSION);
540
541 Prs3d_Text::Draw (thePresentation,
542 myDrawer->DimensionAspect()->TextAspect(),
543 theText,
fe83e1ea 544 theTextPos);
d7bffd44 545
fe83e1ea 546 mySelectionGeom.TextPos = theTextPos;
547 mySelectionGeom.TextDir = theTextDir;
548 mySelectionGeom.TextWidth = 0.0;
549 mySelectionGeom.TextHeight = 0.0;
a6eb515f 550}
551
d7bffd44 552//=======================================================================
60bf98ae 553//function : DrawExtension
a6eb515f 554//purpose :
555//=======================================================================
60bf98ae 556void AIS_Dimension::DrawExtension (const Handle(Prs3d_Presentation)& thePresentation,
d7bffd44 557 const Standard_Real theExtensionSize,
558 const gp_Pnt& theExtensionStart,
559 const gp_Dir& theExtensionDir,
fe83e1ea 560 const TCollection_ExtendedString& theLabelString,
561 const Standard_Real theLabelWidth,
562 const Standard_Integer theMode,
d7bffd44 563 const Standard_Integer theLabelPosition)
a6eb515f 564{
fe83e1ea 565 // reference line for extension starting at its connection point
566 gp_Lin anExtensionLine (theExtensionStart, theExtensionDir);
a6eb515f 567
fe83e1ea 568 Standard_Boolean hasLabel = theLabelString.Length() > 0;
fe83e1ea 569 if (hasLabel && (theMode == ComputeMode_All || theMode == ComputeMode_Text))
a6eb515f 570 {
d7bffd44 571 // compute text primitives; get its model width
fe83e1ea 572 gp_Pnt aTextPos = ElCLib::Value (theExtensionSize, anExtensionLine);
60bf98ae 573 gp_Dir aTextDir = theExtensionDir;
fe83e1ea 574
7c65581d 575 drawText (thePresentation,
fe83e1ea 576 aTextPos,
577 aTextDir,
578 theLabelString,
579 theLabelPosition);
a6eb515f 580 }
581
fe83e1ea 582 if (theMode != ComputeMode_All && theMode != ComputeMode_Line)
a6eb515f 583 {
d7bffd44 584 return;
a6eb515f 585 }
586
fe83e1ea 587 Standard_Boolean isShortLine = !myDrawer->DimensionAspect()->IsText3d()
588 || theLabelPosition & LabelPosition_VCenter;
589
d7bffd44 590 // compute graphical primitives and sensitives for extension line
591 gp_Pnt anExtStart = theExtensionStart;
fe83e1ea 592 gp_Pnt anExtEnd = !hasLabel || isShortLine
593 ? ElCLib::Value (theExtensionSize, anExtensionLine)
594 : ElCLib::Value (theExtensionSize + theLabelWidth, anExtensionLine);
d7bffd44 595
fe83e1ea 596 // add graphical primitives
d7bffd44 597 Handle(Graphic3d_ArrayOfSegments) anExtPrimitive = new Graphic3d_ArrayOfSegments (2);
598 anExtPrimitive->AddVertex (anExtStart);
599 anExtPrimitive->AddVertex (anExtEnd);
600
fe83e1ea 601 // add selection primitives
602 SelectionGeometry::Curve& aSensitiveCurve = mySelectionGeom.NewCurve();
603 aSensitiveCurve.Append (anExtStart);
604 aSensitiveCurve.Append (anExtEnd);
a6eb515f 605
fe83e1ea 606 if (!myDrawer->DimensionAspect()->IsText3d() && theMode == ComputeMode_All)
a6eb515f 607 {
d7bffd44 608 Prs3d_Root::CurrentGroup (thePresentation)->SetStencilTestOptions (Standard_True);
609 }
610 Handle(Graphic3d_AspectLine3d) aDimensionLineStyle = myDrawer->DimensionAspect()->LineAspect()->Aspect();
611 Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aDimensionLineStyle);
612 Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (anExtPrimitive);
fe83e1ea 613 if (!myDrawer->DimensionAspect()->IsText3d() && theMode == ComputeMode_All)
d7bffd44 614 {
615 Prs3d_Root::CurrentGroup (thePresentation)->SetStencilTestOptions (Standard_False);
a6eb515f 616 }
617}
618
619//=======================================================================
60bf98ae 620//function : DrawLinearDimension
a6eb515f 621//purpose :
622//=======================================================================
60bf98ae 623void AIS_Dimension::DrawLinearDimension (const Handle(Prs3d_Presentation)& thePresentation,
fe83e1ea 624 const Standard_Integer theMode,
60bf98ae 625 const gp_Pnt& theFirstPoint,
626 const gp_Pnt& theSecondPoint,
627 const Standard_Boolean theIsOneSide)
a6eb515f 628{
60bf98ae 629 // do not build any dimension for equal points
630 if (theFirstPoint.IsEqual (theSecondPoint, Precision::Confusion()))
a6eb515f 631 {
60bf98ae 632 Standard_ProgramError::Raise ("Can not build presentation for equal points.");
a6eb515f 633 }
d7bffd44 634
a6eb515f 635 Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect();
a6eb515f 636
d7bffd44 637 // For extensions we need to know arrow size, text size and extension size: get it from aspect
638 Quantity_Length anArrowLength = aDimensionAspect->ArrowAspect()->Length();
639 Standard_Real anExtensionSize = aDimensionAspect->ExtensionSize();
fe83e1ea 640 // prepare label string and compute its geometrical width
641 Standard_Real aLabelWidth;
60bf98ae 642 TCollection_ExtendedString aLabelString = GetValueString (aLabelWidth);
a6eb515f 643
fe83e1ea 644 // add margins to cut dimension lines for 3d text
645 if (aDimensionAspect->IsText3d())
646 {
647 aLabelWidth += aDimensionAspect->TextAspect()->Height() * THE_3D_TEXT_MARGIN * 2.0;
648 }
649
650 // handle user-defined and automatic arrow placement
af203d54 651 Standard_Boolean isArrowsExternal = Standard_False;
652 Standard_Integer aLabelPosition = LabelPosition_None;
fe83e1ea 653
af203d54 654 Prs3d_DimensionTextHorizontalPosition aHorisontalTextPos = aDimensionAspect->TextHorizontalPosition();
655 if (IsTextPositionCustom())
656 {
91b16a64 657 if (!AdjustParametersForLinear (myFixedTextPosition, theFirstPoint, theSecondPoint,
658 anExtensionSize, aHorisontalTextPos, myFlyout, myPlane, myIsPlaneCustom))
659 {
660 Standard_ProgramError::Raise ("Can not adjust plane to the custom label position.");
661 }
a6eb515f 662 }
a6eb515f 663
af203d54 664 FitTextAlignmentForLinear (theFirstPoint, theSecondPoint, theIsOneSide, aHorisontalTextPos,
665 aLabelPosition, isArrowsExternal);
666
667 // compute dimension line points
668 gp_Ax1 aPlaneNormal = GetPlane().Axis();
669 gp_Dir aTargetPointsVector = gce_MakeDir (theFirstPoint, theSecondPoint);
670
671 // compute flyout direction vector
672 gp_Dir aFlyoutVector = aPlaneNormal.Direction() ^ aTargetPointsVector;
673
674 // create lines for layouts
675 gp_Lin aLine1 (theFirstPoint, aFlyoutVector);
676 gp_Lin aLine2 (theSecondPoint, aFlyoutVector);
677
678 // Get flyout end points
679 gp_Pnt aLineBegPoint = ElCLib::Value (ElCLib::Parameter (aLine1, theFirstPoint) + GetFlyout(), aLine1);
680 gp_Pnt aLineEndPoint = ElCLib::Value (ElCLib::Parameter (aLine2, theSecondPoint) + GetFlyout(), aLine2);
681
682 gp_Lin aDimensionLine = gce_MakeLin (aLineBegPoint, aLineEndPoint);
683
fe83e1ea 684 // compute arrows positions and directions
d7bffd44 685 gp_Dir aFirstArrowDir = aDimensionLine.Direction().Reversed();
686 gp_Dir aSecondArrowDir = aDimensionLine.Direction();
687 gp_Dir aFirstExtensionDir = aDimensionLine.Direction().Reversed();
688 gp_Dir aSecondExtensionDir = aDimensionLine.Direction();
689
690 gp_Pnt aFirstArrowBegin (0.0, 0.0, 0.0);
691 gp_Pnt aFirstArrowEnd (0.0, 0.0, 0.0);
692 gp_Pnt aSecondArrowBegin (0.0, 0.0, 0.0);
693 gp_Pnt aSecondArrowEnd (0.0, 0.0, 0.0);
a6eb515f 694
d7bffd44 695 if (isArrowsExternal)
a6eb515f 696 {
697 aFirstArrowDir.Reverse();
698 aSecondArrowDir.Reverse();
a6eb515f 699 }
d7bffd44 700
701 aFirstArrowBegin = aLineBegPoint;
702 aSecondArrowBegin = aLineEndPoint;
703 aFirstArrowEnd = aLineBegPoint.Translated (-gp_Vec (aFirstArrowDir).Scaled (anArrowLength));
704 aSecondArrowEnd = aLineEndPoint.Translated (-gp_Vec (aSecondArrowDir).Scaled (anArrowLength));
705
706 gp_Pnt aCenterLineBegin = isArrowsExternal
60bf98ae 707 ? aLineBegPoint : aFirstArrowEnd;
d7bffd44 708
60bf98ae 709 gp_Pnt aCenterLineEnd = isArrowsExternal || theIsOneSide
d7bffd44 710 ? aLineEndPoint : aSecondArrowEnd;
711
a6eb515f 712
d7bffd44 713 switch (aLabelPosition & LabelPosition_HMask)
a6eb515f 714 {
d7bffd44 715 // ------------------------------------------------------------------------ //
716 // CENTER //
717 // -------------------------------------------------------------------------//
d7bffd44 718 case LabelPosition_HCenter:
a6eb515f 719 {
d7bffd44 720 // add label on dimension or extension line to presentation
721 Prs3d_Root::NewGroup (thePresentation);
a6eb515f 722
af203d54 723 gp_Pnt aTextPos = IsTextPositionCustom() ? myFixedTextPosition
724 : (aCenterLineBegin.XYZ() + aCenterLineEnd.XYZ()) * 0.5;
60bf98ae 725 gp_Dir aTextDir = aDimensionLine.Direction();
a6eb515f 726
fe83e1ea 727 // add text primitives
728 if (theMode == ComputeMode_All || theMode == ComputeMode_Text)
a6eb515f 729 {
7c65581d 730 drawText (thePresentation,
fe83e1ea 731 aTextPos,
732 aTextDir,
733 aLabelString,
734 aLabelPosition);
a6eb515f 735 }
d7bffd44 736
fe83e1ea 737 // add dimension line primitives
738 if (theMode == ComputeMode_All || theMode == ComputeMode_Line)
739 {
740 Standard_Boolean isLineBreak = aDimensionAspect->TextVerticalPosition() == Prs3d_DTVP_Center
741 && aDimensionAspect->IsText3d();
d7bffd44 742
fe83e1ea 743 Handle(Graphic3d_ArrayOfSegments) aPrimSegments = new Graphic3d_ArrayOfSegments (isLineBreak ? 4 : 2);
d7bffd44 744
fe83e1ea 745 // compute continuous or sectioned main line segments
746 if (isLineBreak)
747 {
748 Standard_Real aPTextPosition = ElCLib::Parameter (aDimensionLine, aTextPos);
749 gp_Pnt aSection1Beg = aCenterLineBegin;
750 gp_Pnt aSection1End = ElCLib::Value (aPTextPosition - (aLabelWidth * 0.5), aDimensionLine);
751 gp_Pnt aSection2Beg = ElCLib::Value (aPTextPosition + (aLabelWidth * 0.5), aDimensionLine);
752 gp_Pnt aSection2End = aCenterLineEnd;
753
754 aPrimSegments->AddVertex (aSection1Beg);
755 aPrimSegments->AddVertex (aSection1End);
756 aPrimSegments->AddVertex (aSection2Beg);
757 aPrimSegments->AddVertex (aSection2End);
758
759 SelectionGeometry::Curve& aLeftSensitiveCurve = mySelectionGeom.NewCurve();
760 SelectionGeometry::Curve& aRightSensitiveCurve = mySelectionGeom.NewCurve();
761 aLeftSensitiveCurve.Append (aSection1Beg);
762 aLeftSensitiveCurve.Append (aSection1End);
763 aRightSensitiveCurve.Append (aSection2Beg);
764 aRightSensitiveCurve.Append (aSection2End);
765 }
766 else
767 {
768 aPrimSegments->AddVertex (aCenterLineBegin);
769 aPrimSegments->AddVertex (aCenterLineEnd);
a6eb515f 770
fe83e1ea 771 SelectionGeometry::Curve& aSensitiveCurve = mySelectionGeom.NewCurve();
772 aSensitiveCurve.Append (aCenterLineBegin);
773 aSensitiveCurve.Append (aCenterLineEnd);
774 }
a6eb515f 775
fe83e1ea 776 // set text label justification
777 Graphic3d_VerticalTextAlignment aTextJustificaton = Graphic3d_VTA_BOTTOM;
778 switch (aLabelPosition & LabelPosition_VMask)
779 {
780 case LabelPosition_Above :
781 case LabelPosition_VCenter : aTextJustificaton = Graphic3d_VTA_BOTTOM; break;
782 case LabelPosition_Below : aTextJustificaton = Graphic3d_VTA_TOP; break;
783 }
784 aDimensionAspect->TextAspect()->SetVerticalJustification (aTextJustificaton);
a6eb515f 785
fe83e1ea 786 // main dimension line, short extension
787 if (!aDimensionAspect->IsText3d() && theMode == ComputeMode_All)
788 {
789 Prs3d_Root::CurrentGroup (thePresentation)->SetStencilTestOptions (Standard_True);
790 }
791 Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aDimensionAspect->LineAspect()->Aspect());
792 Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (aPrimSegments);
793 if (!aDimensionAspect->IsText3d() && theMode == ComputeMode_All)
794 {
795 Prs3d_Root::CurrentGroup (thePresentation)->SetStencilTestOptions (Standard_False);
796 }
d7bffd44 797
fe83e1ea 798 // add arrows to presentation
799 Prs3d_Root::NewGroup (thePresentation);
d7bffd44 800
60bf98ae 801 DrawArrow (thePresentation, aFirstArrowBegin, aFirstArrowDir);
802 if (!theIsOneSide)
fe83e1ea 803 {
60bf98ae 804 DrawArrow (thePresentation, aSecondArrowBegin, aSecondArrowDir);
fe83e1ea 805 }
d7bffd44 806
fe83e1ea 807 if (!isArrowsExternal)
808 {
809 break;
810 }
d7bffd44 811
fe83e1ea 812 // add arrow extension lines to presentation
813 Prs3d_Root::NewGroup (thePresentation);
d7bffd44 814
af203d54 815 DrawExtension (thePresentation, aDimensionAspect->ArrowTailSize(),
fe83e1ea 816 aFirstArrowEnd, aFirstExtensionDir,
817 THE_EMPTY_LABEL, 0.0, theMode, LabelPosition_None);
60bf98ae 818 if (!theIsOneSide)
fe83e1ea 819 {
af203d54 820 DrawExtension (thePresentation, aDimensionAspect->ArrowTailSize(),
fe83e1ea 821 aSecondArrowEnd, aSecondExtensionDir,
822 THE_EMPTY_LABEL, 0.0, theMode, LabelPosition_None);
823 }
a6eb515f 824 }
1d7ca641 825
826 break;
a6eb515f 827 }
d7bffd44 828 // ------------------------------------------------------------------------ //
829 // LEFT //
830 // -------------------------------------------------------------------------//
831
832 case LabelPosition_Left:
a6eb515f 833 {
d7bffd44 834 // add label on dimension or extension line to presentation
835 Prs3d_Root::NewGroup (thePresentation);
a6eb515f 836
a6eb515f 837 // Left extension with the text
60bf98ae 838 DrawExtension (thePresentation, anExtensionSize,
839 isArrowsExternal
840 ? aFirstArrowEnd
841 : aFirstArrowBegin,
d7bffd44 842 aFirstExtensionDir,
fe83e1ea 843 aLabelString,
844 aLabelWidth,
d7bffd44 845 theMode,
846 aLabelPosition);
847
fe83e1ea 848 // add dimension line primitives
849 if (theMode == ComputeMode_All || theMode == ComputeMode_Line)
d7bffd44 850 {
fe83e1ea 851 // add central dimension line
852 Prs3d_Root::NewGroup (thePresentation);
d7bffd44 853
fe83e1ea 854 // add graphical primitives
855 Handle(Graphic3d_ArrayOfSegments) aPrimSegments = new Graphic3d_ArrayOfSegments (2);
856 aPrimSegments->AddVertex (aCenterLineBegin);
857 aPrimSegments->AddVertex (aCenterLineEnd);
d7bffd44 858
fe83e1ea 859 Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aDimensionAspect->LineAspect()->Aspect());
860 Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (aPrimSegments);
d7bffd44 861
fe83e1ea 862 // add selection primitives
863 SelectionGeometry::Curve& aSensitiveCurve = mySelectionGeom.NewCurve();
864 aSensitiveCurve.Append (aCenterLineBegin);
865 aSensitiveCurve.Append (aCenterLineEnd);
a6eb515f 866
fe83e1ea 867 // add arrows to presentation
868 Prs3d_Root::NewGroup (thePresentation);
a6eb515f 869
60bf98ae 870 DrawArrow (thePresentation, aFirstArrowBegin, aFirstArrowDir);
871 if (!theIsOneSide)
fe83e1ea 872 {
60bf98ae 873 DrawArrow (thePresentation, aSecondArrowBegin, aSecondArrowDir);
fe83e1ea 874 }
d7bffd44 875
60bf98ae 876 if (!isArrowsExternal || theIsOneSide)
fe83e1ea 877 {
878 break;
879 }
d7bffd44 880
fe83e1ea 881 // add extension lines for external arrows
882 Prs3d_Root::NewGroup (thePresentation);
d7bffd44 883
af203d54 884 DrawExtension (thePresentation, aDimensionAspect->ArrowTailSize(),
fe83e1ea 885 aSecondArrowEnd, aSecondExtensionDir,
886 THE_EMPTY_LABEL, 0.0, theMode, LabelPosition_None);
887 }
d7bffd44 888
a6eb515f 889 break;
890 }
d7bffd44 891 // ------------------------------------------------------------------------ //
892 // RIGHT //
893 // -------------------------------------------------------------------------//
894
895 case LabelPosition_Right:
a6eb515f 896 {
d7bffd44 897 // add label on dimension or extension line to presentation
898 Prs3d_Root::NewGroup (thePresentation);
899
900 // Right extension with text
60bf98ae 901 DrawExtension (thePresentation, anExtensionSize,
902 isArrowsExternal
903 ? aSecondArrowEnd
904 : aSecondArrowBegin,
d7bffd44 905 aSecondExtensionDir,
fe83e1ea 906 aLabelString, aLabelWidth,
d7bffd44 907 theMode,
908 aLabelPosition);
909
fe83e1ea 910 if (theMode == ComputeMode_All || theMode == ComputeMode_Line)
a6eb515f 911 {
fe83e1ea 912 // add central dimension line
913 Prs3d_Root::NewGroup (thePresentation);
a6eb515f 914
fe83e1ea 915 // add graphical primitives
916 Handle(Graphic3d_ArrayOfSegments) aPrimSegments = new Graphic3d_ArrayOfSegments (2);
917 aPrimSegments->AddVertex (aCenterLineBegin);
918 aPrimSegments->AddVertex (aCenterLineEnd);
919 Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aDimensionAspect->LineAspect()->Aspect());
920 Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (aPrimSegments);
a6eb515f 921
fe83e1ea 922 // add selection primitives
923 SelectionGeometry::Curve& aSensitiveCurve = mySelectionGeom.NewCurve();
924 aSensitiveCurve.Append (aCenterLineBegin);
925 aSensitiveCurve.Append (aCenterLineEnd);
a6eb515f 926
fe83e1ea 927 // add arrows to presentation
928 Prs3d_Root::NewGroup (thePresentation);
d7bffd44 929
60bf98ae 930 DrawArrow (thePresentation, aSecondArrowBegin, aSecondArrowDir);
931 if (!theIsOneSide)
fe83e1ea 932 {
60bf98ae 933 DrawArrow (thePresentation, aFirstArrowBegin, aFirstArrowDir);
fe83e1ea 934 }
d7bffd44 935
60bf98ae 936 if (!isArrowsExternal || theIsOneSide)
fe83e1ea 937 {
938 break;
939 }
a6eb515f 940
fe83e1ea 941 // add extension lines for external arrows
942 Prs3d_Root::NewGroup (thePresentation);
d7bffd44 943
af203d54 944 DrawExtension (thePresentation, aDimensionAspect->ArrowTailSize(),
fe83e1ea 945 aFirstArrowEnd, aFirstExtensionDir,
946 THE_EMPTY_LABEL, 0.0, theMode, LabelPosition_None);
947 }
d7bffd44 948
a6eb515f 949 break;
950 }
951 }
952
d7bffd44 953 // add flyout lines to presentation
fe83e1ea 954 if (theMode == ComputeMode_All)
d7bffd44 955 {
956 Prs3d_Root::NewGroup (thePresentation);
957
958 Handle(Graphic3d_ArrayOfSegments) aPrimSegments = new Graphic3d_ArrayOfSegments(4);
60bf98ae 959 aPrimSegments->AddVertex (theFirstPoint);
d7bffd44 960 aPrimSegments->AddVertex (aLineBegPoint);
961
60bf98ae 962 aPrimSegments->AddVertex (theSecondPoint);
d7bffd44 963 aPrimSegments->AddVertex (aLineEndPoint);
964
d7bffd44 965 Prs3d_Root::CurrentGroup (thePresentation)->SetPrimitivesAspect (aDimensionAspect->LineAspect()->Aspect());
966 Prs3d_Root::CurrentGroup (thePresentation)->AddPrimitiveArray (aPrimSegments);
967 }
968
91b16a64 969 mySelectionGeom.IsComputed = Standard_True;
a6eb515f 970}
971
972//=======================================================================
60bf98ae 973//function : ComputeLinearFlyouts
974//purpose :
a6eb515f 975//=======================================================================
60bf98ae 976void AIS_Dimension::ComputeLinearFlyouts (const Handle(SelectMgr_Selection)& theSelection,
977 const Handle(SelectMgr_EntityOwner)& theOwner,
978 const gp_Pnt& theFirstPoint,
979 const gp_Pnt& theSecondPoint)
a6eb515f 980{
60bf98ae 981 // count flyout direction
982 gp_Ax1 aPlaneNormal = GetPlane().Axis();
983 gp_Dir aTargetPointsVector = gce_MakeDir (theFirstPoint, theSecondPoint);
a6eb515f 984
60bf98ae 985 // count a flyout direction vector.
986 gp_Dir aFlyoutVector = aPlaneNormal.Direction() ^ aTargetPointsVector;
a6eb515f 987
60bf98ae 988 // create lines for layouts
989 gp_Lin aLine1 (theFirstPoint, aFlyoutVector);
990 gp_Lin aLine2 (theSecondPoint, aFlyoutVector);
991
992 // get flyout end points
993 gp_Pnt aFlyoutEnd1 = ElCLib::Value (ElCLib::Parameter (aLine1, theFirstPoint) + GetFlyout(), aLine1);
994 gp_Pnt aFlyoutEnd2 = ElCLib::Value (ElCLib::Parameter (aLine2, theSecondPoint) + GetFlyout(), aLine2);
995
996 // fill sensitive entity for flyouts
997 Handle(Select3D_SensitiveGroup) aSensitiveEntity = new Select3D_SensitiveGroup (theOwner);
998 aSensitiveEntity->Add (new Select3D_SensitiveSegment (theOwner, theFirstPoint, aFlyoutEnd1));
999 aSensitiveEntity->Add (new Select3D_SensitiveSegment (theOwner, theSecondPoint, aFlyoutEnd2));
1000 theSelection->Add (aSensitiveEntity);
a6eb515f 1001}
1002
1003//=======================================================================
60bf98ae 1004//function : CircleFromPlanarFace
a6eb515f 1005//purpose : if possible computes circle from planar face
1006//=======================================================================
60bf98ae 1007Standard_Boolean AIS_Dimension::CircleFromPlanarFace (const TopoDS_Face& theFace,
a6eb515f 1008 Handle(Geom_Curve)& theCurve,
60bf98ae 1009 gp_Pnt& theFirstPoint,
1010 gp_Pnt& theLastPoint)
a6eb515f 1011{
1012 TopExp_Explorer anIt (theFace, TopAbs_EDGE);
1013 for ( ; anIt.More(); anIt.Next())
1014 {
1015 TopoDS_Edge aCurEdge = TopoDS::Edge (anIt.Current());
1016 if (AIS::ComputeGeometry (aCurEdge, theCurve, theFirstPoint, theLastPoint))
1017 {
1018 if (theCurve->IsInstance (STANDARD_TYPE(Geom_Circle)))
1019 {
1020 return Standard_True;
1021 }
1022 }
1023 }
1024 return Standard_False;
1025}
1026
0499eb06 1027//=======================================================================
1028//function : CircleFromEdge
1029//purpose : if possible computes circle from edge
1030//=======================================================================
1031Standard_Boolean AIS_Dimension::CircleFromEdge (const TopoDS_Edge& theEdge,
1032 gp_Circ& theCircle,
1033 gp_Pnt& theFirstPoint,
1034 gp_Pnt& theLastPoint)
1035{
1036 BRepAdaptor_Curve anAdaptedCurve (theEdge);
1037 switch (anAdaptedCurve.GetType())
1038 {
1039 case GeomAbs_Circle:
1040 {
1041 theCircle = anAdaptedCurve.Circle();
1042 break;
1043 }
1044 case GeomAbs_Ellipse:
1045 {
1046 gp_Elips anEll = anAdaptedCurve.Ellipse();
1047 if ((anEll.MinorRadius() - anEll.MajorRadius()) >= Precision::Confusion())
1048 {
1049 return Standard_False;
1050 }
1051 theCircle = gp_Circ(anEll.Position(),anEll.MinorRadius());
1052 break;
1053 }
1054 case GeomAbs_Line:
1055 case GeomAbs_Hyperbola:
1056 case GeomAbs_Parabola:
1057 case GeomAbs_BezierCurve:
1058 case GeomAbs_BSplineCurve:
1059 case GeomAbs_OtherCurve:
1060 default:
1061 return Standard_False;
1062 }
1063
1064 theFirstPoint = anAdaptedCurve.Value (anAdaptedCurve.FirstParameter());
1065 theLastPoint = anAdaptedCurve.Value (anAdaptedCurve.LastParameter());
1066 return Standard_True;
1067}
1068
a6eb515f 1069//=======================================================================
60bf98ae 1070//function : InitCircularDimension
1071//purpose :
a6eb515f 1072//=======================================================================
60bf98ae 1073Standard_Boolean AIS_Dimension::InitCircularDimension (const TopoDS_Shape& theShape,
a6eb515f 1074 gp_Circ& theCircle,
1075 gp_Pnt& theMiddleArcPoint,
60bf98ae 1076 Standard_Boolean& theIsClosed)
a6eb515f 1077{
1078 gp_Pln aPln;
1079 Handle(Geom_Surface) aBasisSurf;
1080 AIS_KindOfSurface aSurfType = AIS_KOS_OtherSurface;
1081 gp_Pnt aFirstPoint, aLastPoint;
1082 Standard_Real anOffset = 0.0;
1083 Standard_Real aFirstParam = 0.0;
1084 Standard_Real aLastParam = 0.0;
a6eb515f 1085
0499eb06 1086 // Discover circular geometry
1087 switch (theShape.ShapeType())
a6eb515f 1088 {
0499eb06 1089 case TopAbs_FACE:
a6eb515f 1090 {
0499eb06 1091 AIS::GetPlaneFromFace (TopoDS::Face (theShape), aPln, aBasisSurf, aSurfType, anOffset);
a6eb515f 1092
0499eb06 1093 if (aSurfType == AIS_KOS_Plane)
a6eb515f 1094 {
0499eb06 1095 Handle(Geom_Curve) aCurve;
1096 if (!CircleFromPlanarFace (TopoDS::Face (theShape), aCurve, aFirstPoint, aLastPoint))
1097 {
1098 return Standard_False;
1099 }
1100
1101 theCircle = Handle(Geom_Circle)::DownCast (aCurve)->Circ();
a6eb515f 1102 }
1103 else
1104 {
0499eb06 1105 gp_Pnt aCurPos;
1106 BRepAdaptor_Surface aSurf1 (TopoDS::Face (theShape));
1107 Standard_Real aFirstU = aSurf1.FirstUParameter();
1108 Standard_Real aLastU = aSurf1.LastUParameter();
1109 Standard_Real aFirstV = aSurf1.FirstVParameter();
1110 Standard_Real aLastV = aSurf1.LastVParameter();
1111 Standard_Real aMidU = (aFirstU + aLastU) * 0.5;
1112 Standard_Real aMidV = (aFirstV + aLastV) * 0.5;
1113 aSurf1.D0 (aMidU, aMidV, aCurPos);
1114 Handle (Adaptor3d_HCurve) aBasisCurve;
1115 Standard_Boolean isExpectedType = Standard_False;
1116 if (aSurfType == AIS_KOS_Cylinder)
a6eb515f 1117 {
0499eb06 1118 isExpectedType = Standard_True;
a6eb515f 1119 }
0499eb06 1120 else
a6eb515f 1121 {
0499eb06 1122 if (aSurfType == AIS_KOS_Revolution)
a6eb515f 1123 {
0499eb06 1124 aBasisCurve = aSurf1.BasisCurve();
1125 if (aBasisCurve->GetType() == GeomAbs_Line)
1126 {
1127 isExpectedType = Standard_True;
1128 }
1129 }
1130 else if (aSurfType == AIS_KOS_Extrusion)
1131 {
1132 aBasisCurve = aSurf1.BasisCurve();
1133 if (aBasisCurve->GetType() == GeomAbs_Circle)
1134 {
1135 isExpectedType = Standard_True;
1136 }
a6eb515f 1137 }
1138 }
a6eb515f 1139
0499eb06 1140 if (!isExpectedType)
1141 {
1142 return Standard_False;
1143 }
60bf98ae 1144
0499eb06 1145 Handle(Geom_Curve) aCurve = aBasisSurf->VIso(aMidV);
1146 if (aCurve->DynamicType() == STANDARD_TYPE (Geom_Circle))
a6eb515f 1147 {
0499eb06 1148 theCircle = Handle(Geom_Circle)::DownCast (aCurve)->Circ();
1149 }
1150 else if (aCurve->DynamicType() == STANDARD_TYPE (Geom_TrimmedCurve))
1151 {
1152 Handle(Geom_TrimmedCurve) aTrimmedCurve = Handle(Geom_TrimmedCurve)::DownCast (aCurve);
1153 aFirstU = aTrimmedCurve->FirstParameter();
1154 aLastU = aTrimmedCurve->LastParameter();
1155 if (aTrimmedCurve->BasisCurve()->DynamicType() == STANDARD_TYPE (Geom_Circle))
1156 {
1157 theCircle = Handle(Geom_Circle)::DownCast(aTrimmedCurve->BasisCurve())->Circ();
1158 }
1159 }
1160 else
1161 {
1162 // Compute a circle from 3 points on "aCurve"
1163 gp_Pnt aP1, aP2;
1164 aSurf1.D0 (aFirstU, aMidV, aP1);
1165 aSurf1.D0 (aLastU, aMidV, aP2);
1166 GC_MakeCircle aMkCirc (aP1, aCurPos, aP2);
1167 theCircle = aMkCirc.Value()->Circ();
a6eb515f 1168 }
a6eb515f 1169
0499eb06 1170 aFirstPoint = ElCLib::Value (aFirstU, theCircle);
1171 aLastPoint = ElCLib::Value (aLastU, theCircle);
1172 }
1173 break;
a6eb515f 1174 }
0499eb06 1175 case TopAbs_WIRE:
a6eb515f 1176 {
0499eb06 1177 TopoDS_Edge anEdge;
a6eb515f 1178 TopExp_Explorer anIt (theShape, TopAbs_EDGE);
1179 if (anIt.More())
1180 {
1181 anEdge = TopoDS::Edge (anIt.Current());
1182 }
0499eb06 1183 if (!AIS_Dimension::CircleFromEdge (anEdge, theCircle, aFirstPoint, aLastPoint))
1184 {
1185 return Standard_False;
1186 }
1187 break;
a6eb515f 1188 }
0499eb06 1189 case TopAbs_EDGE:
a6eb515f 1190 {
0499eb06 1191 TopoDS_Edge anEdge = TopoDS::Edge (theShape);
1192 if (!AIS_Dimension::CircleFromEdge (anEdge, theCircle, aFirstPoint, aLastPoint))
1193 {
1194 return Standard_False;
1195 }
1196 break;
a6eb515f 1197 }
0499eb06 1198 case TopAbs_COMPOUND:
1199 case TopAbs_COMPSOLID:
1200 case TopAbs_SOLID:
1201 case TopAbs_SHELL:
1202 case TopAbs_VERTEX:
1203 case TopAbs_SHAPE:
1204 default:
a6eb515f 1205 return Standard_False;
a6eb515f 1206 }
60bf98ae 1207
1208 theIsClosed = aFirstPoint.IsEqual (aLastPoint, Precision::Confusion());
1209
a6eb515f 1210 gp_Pnt aCenter = theCircle.Location();
60bf98ae 1211
1212 if (theIsClosed) // Circle
a6eb515f 1213 {
a6eb515f 1214 gp_Dir anXDir = theCircle.XAxis().Direction();
1215 theMiddleArcPoint = aCenter.Translated (gp_Vec (anXDir) * theCircle.Radius());
a6eb515f 1216 }
60bf98ae 1217 else // Arc
a6eb515f 1218 {
a6eb515f 1219 aFirstParam = ElCLib::Parameter (theCircle, aFirstPoint);
1220 aLastParam = ElCLib::Parameter (theCircle, aLastPoint);
1221 if (aFirstParam > aLastParam)
1222 {
1223 aFirstParam -= 2.0 * M_PI;
1224 }
60bf98ae 1225
a6eb515f 1226 Standard_Real aParCurPos = (aFirstParam + aLastParam) * 0.5;
1227 gp_Vec aVec = gp_Vec (aCenter, ElCLib::Value (aParCurPos, theCircle)).Normalized () * theCircle.Radius ();
1228 theMiddleArcPoint = aCenter.Translated (aVec);
a6eb515f 1229 }
1230
1231 return Standard_True;
1232}
1233
a6eb515f 1234//=======================================================================
1235//function : ComputeSelection
1236//purpose :
1237//=======================================================================
a6eb515f 1238void AIS_Dimension::ComputeSelection (const Handle(SelectMgr_Selection)& theSelection,
1239 const Standard_Integer theMode)
1240{
91b16a64 1241 if (!mySelectionGeom.IsComputed)
a6eb515f 1242 {
1243 return;
1244 }
1245
fe83e1ea 1246 AIS_DimensionSelectionMode aSelectionMode = (AIS_DimensionSelectionMode)theMode;
a6eb515f 1247
fe83e1ea 1248 // init appropriate entity owner
1249 Handle(SelectMgr_EntityOwner) aSensitiveOwner;
a6eb515f 1250
fe83e1ea 1251 switch (aSelectionMode)
a6eb515f 1252 {
fe83e1ea 1253 // neutral selection owner
1254 case AIS_DSM_All :
1255 aSensitiveOwner = new SelectMgr_EntityOwner (this, THE_NEUTRAL_SEL_PRIORITY);
1256 break;
1257
1258 // local selection owners
1259 case AIS_DSM_Line :
1260 case AIS_DSM_Text :
1261 aSensitiveOwner = new AIS_DimensionOwner (this, aSelectionMode, THE_LOCAL_SEL_PRIORITY);
1262 break;
a6eb515f 1263 }
fe83e1ea 1264
1265 if (aSelectionMode == AIS_DSM_All || aSelectionMode == AIS_DSM_Line)
a6eb515f 1266 {
fe83e1ea 1267 // sensitives for dimension line segments
1268 Handle(Select3D_SensitiveGroup) aGroupOfSensitives = new Select3D_SensitiveGroup (aSensitiveOwner);
1269
1270 SelectionGeometry::SeqOfCurves::Iterator aCurveIt (mySelectionGeom.DimensionLine);
1271 for (; aCurveIt.More(); aCurveIt.Next())
1272 {
1273 const SelectionGeometry::HCurve& aCurveData = aCurveIt.Value();
1274
1275 TColgp_Array1OfPnt aSensitivePnts (1, aCurveData->Length());
1276 for (Standard_Integer aPntIt = 1; aPntIt <= aCurveData->Length(); ++aPntIt)
1277 {
1278 aSensitivePnts.ChangeValue (aPntIt) = aCurveData->Value (aPntIt);
1279 }
1280
1281 aGroupOfSensitives->Add (new Select3D_SensitiveCurve (aSensitiveOwner, aSensitivePnts));
1282 }
1283
1284 Quantity_Length anArrowLength = myDrawer->DimensionAspect()->ArrowAspect()->Length();
1285 Standard_Real anArrowAngle = myDrawer->DimensionAspect()->ArrowAspect()->Angle();
1286
1287 // sensitives for arrows
1288 SelectionGeometry::SeqOfArrows::Iterator anArrowIt (mySelectionGeom.Arrows);
1289 for (; anArrowIt.More(); anArrowIt.Next())
1290 {
1291 const SelectionGeometry::HArrow& anArrow = anArrowIt.Value();
1292
1293 gp_Pnt aSidePnt1 (gp::Origin());
1294 gp_Pnt aSidePnt2 (gp::Origin());
60bf98ae 1295 const gp_Dir& aPlane = GetPlane().Axis().Direction();
fe83e1ea 1296 const gp_Pnt& aPeak = anArrow->Position;
1297 const gp_Dir& aDir = anArrow->Direction;
1298
1299 // compute points for arrow in plane
1300 PointsForArrow (aPeak, aDir, aPlane, anArrowLength, anArrowAngle, aSidePnt1, aSidePnt2);
1301
1302 aGroupOfSensitives->Add (new Select3D_SensitiveTriangle (aSensitiveOwner, aPeak, aSidePnt1, aSidePnt2));
1303
1304 if (!myDrawer->DimensionAspect()->IsArrows3d())
1305 {
1306 continue;
1307 }
1308
1309 // compute points for orthogonal sensitive plane
1310 gp_Dir anOrthoPlane = anArrow->Direction.Crossed (aPlane);
1311
1312 PointsForArrow (aPeak, aDir, anOrthoPlane, anArrowLength, anArrowAngle, aSidePnt1, aSidePnt2);
1313
1314 aGroupOfSensitives->Add (new Select3D_SensitiveTriangle (aSensitiveOwner, aPeak, aSidePnt1, aSidePnt2));
1315 }
1316
1317 theSelection->Add (aGroupOfSensitives);
a6eb515f 1318 }
fe83e1ea 1319
1320 // sensitives for text element
1321 if (aSelectionMode == AIS_DSM_All || aSelectionMode == AIS_DSM_Text)
a6eb515f 1322 {
fe83e1ea 1323 Handle(Select3D_SensitiveEntity) aTextSensitive;
1324
1325 gp_Ax2 aTextAxes (mySelectionGeom.TextPos,
60bf98ae 1326 GetPlane().Axis().Direction(),
fe83e1ea 1327 mySelectionGeom.TextDir);
1328
1329 if (myDrawer->DimensionAspect()->IsText3d())
1330 {
1331 // sensitive planar rectangle for text
1332 Standard_Real aDx = mySelectionGeom.TextWidth * 0.5;
1333 Standard_Real aDy = mySelectionGeom.TextHeight * 0.5;
1334
1335 gp_Trsf aLabelPlane;
1336 aLabelPlane.SetTransformation (aTextAxes, gp::XOY());
1337
51f8f60c 1338 TColgp_Array1OfPnt aRectanglePoints(1, 4);
1339 aRectanglePoints.ChangeValue(1) = gp_Pnt (-aDx, -aDy, 0.0).Transformed (aLabelPlane);
1340 aRectanglePoints.ChangeValue(2) = gp_Pnt (-aDx, aDy, 0.0).Transformed (aLabelPlane);
1341 aRectanglePoints.ChangeValue(3) = gp_Pnt ( aDx, aDy, 0.0).Transformed (aLabelPlane);
1342 aRectanglePoints.ChangeValue(4) = gp_Pnt ( aDx, -aDy, 0.0).Transformed (aLabelPlane);
fe83e1ea 1343
51f8f60c 1344 Poly_Array1OfTriangle aTriangles(1, 2);
1345 aTriangles.ChangeValue(1) = Poly_Triangle(1, 2, 3);
1346 aTriangles.ChangeValue(2) = Poly_Triangle(1, 3, 4);
1347
1348 Handle(Poly_Triangulation) aRectanglePoly =
1349 new Poly_Triangulation(aRectanglePoints, aTriangles);
1350
1351 aTextSensitive =
1352 new Select3D_SensitiveTriangulation (aSensitiveOwner, aRectanglePoly, TopLoc_Location(), Standard_True);
fe83e1ea 1353 }
1354 else
1355 {
1356 gp_Circ aTextGeom (aTextAxes, mySelToleranceForText2d != 0.0
1357 ? mySelToleranceForText2d : 1.0);
1358
1359 Handle(Geom_Circle) aSensGeom = new Geom_Circle (aTextGeom);
1360
1361 aTextSensitive = new Select3D_SensitiveCircle (aSensitiveOwner, aSensGeom, Standard_True);
1362 }
1363
1364 theSelection->Add (aTextSensitive);
a6eb515f 1365 }
fe83e1ea 1366
1367 // callback for flyout sensitive calculation
1368 if (aSelectionMode == AIS_DSM_All)
d7bffd44 1369 {
60bf98ae 1370 ComputeFlyoutSelection (theSelection, aSensitiveOwner);
d7bffd44 1371 }
fe83e1ea 1372}
1373
1374//=======================================================================
1375//function : PointsForArrow
1376//purpose :
1377//=======================================================================
1378void AIS_Dimension::PointsForArrow (const gp_Pnt& thePeakPnt,
1379 const gp_Dir& theDirection,
1380 const gp_Dir& thePlane,
1381 const Standard_Real theArrowLength,
1382 const Standard_Real theArrowAngle,
1383 gp_Pnt& theSidePnt1,
1384 gp_Pnt& theSidePnt2)
1385{
1386 gp_Lin anArrowLin (thePeakPnt, theDirection.Reversed());
1387 gp_Pnt anArrowEnd = ElCLib::Value (theArrowLength, anArrowLin);
1388 gp_Lin anEdgeLin (anArrowEnd, theDirection.Crossed (thePlane));
1389
1390 Standard_Real anEdgeLength = Tan (theArrowAngle) * theArrowLength;
a6eb515f 1391
fe83e1ea 1392 theSidePnt1 = ElCLib::Value ( anEdgeLength, anEdgeLin);
1393 theSidePnt2 = ElCLib::Value (-anEdgeLength, anEdgeLin);
a6eb515f 1394}
af203d54 1395
1396//=======================================================================
1397//function : GetTextPositionForLinear
1398//purpose :
1399//=======================================================================
1400gp_Pnt AIS_Dimension::GetTextPositionForLinear (const gp_Pnt& theFirstPoint,
1401 const gp_Pnt& theSecondPoint,
1402 const Standard_Boolean theIsOneSide) const
1403{
91b16a64 1404 if (!IsValid())
af203d54 1405 {
1406 return gp::Origin();
1407 }
1408
1409 gp_Pnt aTextPosition (gp::Origin());
1410
1411 Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect();
1412
1413 // Get label alignment and arrow orientation.
1414 Standard_Integer aLabelPosition = 0;
1415 Standard_Boolean isArrowsExternal = Standard_False;
1416 FitTextAlignmentForLinear (theFirstPoint, theSecondPoint, theIsOneSide,
1417 aDimensionAspect->TextHorizontalPosition(),
1418 aLabelPosition, isArrowsExternal);
1419
1420 // Compute dimension line points.
1421 gp_Dir aPlaneNormal = GetPlane().Axis().Direction();
1422 gp_Vec aTargetPointsVec (theFirstPoint, theSecondPoint);
1423
1424 // Compute flyout direction vector
1425 gp_Dir aFlyoutVector = aPlaneNormal ^ gp_Dir (aTargetPointsVec);
1426
1427 // create lines for layouts
1428 gp_Lin aLine1 (theFirstPoint, aFlyoutVector);
1429 gp_Lin aLine2 (theSecondPoint, aFlyoutVector);
1430 // Get flyout end points
1431 gp_Pnt aLineBegPoint = ElCLib::Value (ElCLib::Parameter (aLine1, theFirstPoint) + GetFlyout(), aLine1);
1432 gp_Pnt aLineEndPoint = ElCLib::Value (ElCLib::Parameter (aLine2, theSecondPoint) + GetFlyout(), aLine2);
1433
1434 // Get text position.
1435 switch (aLabelPosition & LabelPosition_HMask)
1436 {
1437 case LabelPosition_Left:
1438 {
1439 gp_Dir aTargetPointsDir = gce_MakeDir (theFirstPoint, theSecondPoint);
1440 Standard_Real anExtensionSize = aDimensionAspect->ExtensionSize();
1441
1442 Standard_Real anOffset = isArrowsExternal
1443 ? anExtensionSize + aDimensionAspect->ArrowAspect()->Length()
1444 : anExtensionSize;
1445 gp_Vec anExtensionVec = gp_Vec (aTargetPointsDir) * -anOffset;
1446 aTextPosition = aLineEndPoint.Translated (anExtensionVec);
1447 }
1448 break;
1449 case LabelPosition_Right:
1450 {
1451 gp_Dir aTargetPointsDir = gce_MakeDir (theFirstPoint, theSecondPoint);
1452 Standard_Real anExtensionSize = aDimensionAspect->ExtensionSize();
1453
1454 Standard_Real anOffset = isArrowsExternal
1455 ? anExtensionSize + aDimensionAspect->ArrowAspect()->Length()
1456 : anExtensionSize;
1457 gp_Vec anExtensionVec = gp_Vec (aTargetPointsDir) * anOffset;
1458 aTextPosition = aLineBegPoint.Translated (anExtensionVec);
1459 }
1460 break;
1461 case LabelPosition_HCenter:
1462 {
1463 aTextPosition = (aLineBegPoint.XYZ() + aLineEndPoint.XYZ()) * 0.5;
1464 }
1465 break;
1466 }
1467
1468 return aTextPosition;
1469}
1470
1471//=======================================================================
91b16a64 1472//function : AdjustParametersForLinear
af203d54 1473//purpose :
1474//=======================================================================
91b16a64 1475Standard_Boolean AIS_Dimension::AdjustParametersForLinear (const gp_Pnt& theTextPos,
1476 const gp_Pnt& theFirstPoint,
1477 const gp_Pnt& theSecondPoint,
1478 Standard_Real& theExtensionSize,
1479 Prs3d_DimensionTextHorizontalPosition& theAlignment,
1480 Standard_Real& theFlyout,
1481 gp_Pln& thePlane,
1482 Standard_Boolean& theIsPlaneOld) const
af203d54 1483{
1484 Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect();
1485 Standard_Real anArrowLength = aDimensionAspect->ArrowAspect()->Length();
1486
af203d54 1487 gp_Dir aTargetPointsDir = gce_MakeDir (theFirstPoint, theSecondPoint);
1488 gp_Vec aTargetPointsVec (theFirstPoint, theSecondPoint);
1489
91b16a64 1490 // Don't set new plane if the text position lies on the attachment points line.
1491 gp_Lin aTargetPointsLin (theFirstPoint, aTargetPointsDir);
1492 if (!aTargetPointsLin.Contains (theTextPos, Precision::Confusion()))
1493 {
1494 //Set new automatic plane.
1495 thePlane = gce_MakePln (theTextPos, theFirstPoint, theSecondPoint);
1496 theIsPlaneOld = Standard_False;
1497 }
1498
af203d54 1499 // Compute flyout direction vector.
91b16a64 1500 gp_Dir aPlaneNormal = GetPlane().Axis().Direction();
af203d54 1501 gp_Dir aPositiveFlyout = aPlaneNormal ^ aTargetPointsDir;
1502
91b16a64 1503 // Additional check of collinearity of the plane normal and attachment points vector.
1504 if (aPlaneNormal.IsParallel (aTargetPointsDir, Precision::Angular()))
1505 {
1506 return Standard_False;
1507 }
1508
af203d54 1509 // Set flyout.
1510 gp_Vec aFirstToTextVec (theFirstPoint, theTextPos);
1511
1512 Standard_Real aCos = aFirstToTextVec.Normalized() * gp_Vec (aTargetPointsDir);
1513
1514 gp_Pnt aTextPosProj = theFirstPoint.Translated
1515 (gp_Vec (aTargetPointsDir) * aFirstToTextVec.Magnitude() * aCos);
1516
1517 // Compute flyout value and direction.
1518 gp_Vec aFlyoutVector = gp_Vec (aTextPosProj, theTextPos);
1519
91b16a64 1520 theFlyout = 0.0;
1521 if (aFlyoutVector.Magnitude() > Precision::Confusion())
1522 {
1523 theFlyout = gp_Dir (aFlyoutVector).IsOpposite (aPositiveFlyout, Precision::Angular())
1524 ? -aFlyoutVector.Magnitude()
1525 : aFlyoutVector.Magnitude();
1526 }
1527
af203d54 1528 // Compute attach points (through which main dimension line passes).
1529 gp_Pnt aFirstAttach = theFirstPoint.Translated (aFlyoutVector);
1530 gp_Pnt aSecondAttach = theSecondPoint.Translated (aFlyoutVector);
1531
91b16a64 1532 // Set horizontal text alignment.
af203d54 1533 if (aCos < 0.0)
1534 {
1535 theAlignment = Prs3d_DTHP_Left;
1536
1537 Standard_Real aNewExtSize = theTextPos.Distance (aFirstAttach) - anArrowLength;
1538 theExtensionSize = aNewExtSize < 0.0 ? 0.0 : aNewExtSize;
1539 }
1540 else if (aTextPosProj.Distance (theFirstPoint) > theFirstPoint.Distance (theSecondPoint))
1541 {
1542 theAlignment = Prs3d_DTHP_Right;
1543
1544 Standard_Real aNewExtSize = theTextPos.Distance (aSecondAttach) - anArrowLength;
1545 theExtensionSize = aNewExtSize < 0.0 ? 0.0 : aNewExtSize;
1546 }
1547 else
1548 {
1549 theAlignment = Prs3d_DTHP_Center;
1550 }
91b16a64 1551 return Standard_True;
af203d54 1552}
1553
1554//=======================================================================
1555//function : FitTextAlignmentForLinear
1556//purpose :
1557//=======================================================================
1558void AIS_Dimension::FitTextAlignmentForLinear (const gp_Pnt& theFirstPoint,
1559 const gp_Pnt& theSecondPoint,
1560 const Standard_Boolean theIsOneSide,
1561 const Prs3d_DimensionTextHorizontalPosition& theHorizontalTextPos,
1562 Standard_Integer& theLabelPosition,
1563 Standard_Boolean& theIsArrowsExternal) const
1564{
1565 theLabelPosition = LabelPosition_None;
1566 theIsArrowsExternal = Standard_False;
1567
1568 // Compute dimension line points
1569 gp_Ax1 aPlaneNormal = GetPlane().Axis();
1570 gp_Dir aTargetPointsVector = gce_MakeDir (theFirstPoint, theSecondPoint);
1571
1572 // compute flyout direction vector
1573 gp_Dir aFlyoutVector = aPlaneNormal.Direction() ^ aTargetPointsVector;
1574
1575 // create lines for layouts
1576 gp_Lin aLine1 (theFirstPoint, aFlyoutVector);
1577 gp_Lin aLine2 (theSecondPoint, aFlyoutVector);
1578
1579 // Get flyout end points
1580 gp_Pnt aLineBegPoint = ElCLib::Value (ElCLib::Parameter (aLine1, theFirstPoint) + GetFlyout(), aLine1);
1581 gp_Pnt aLineEndPoint = ElCLib::Value (ElCLib::Parameter (aLine2, theSecondPoint) + GetFlyout(), aLine2);
1582
1583 Handle(Prs3d_DimensionAspect) aDimensionAspect = myDrawer->DimensionAspect();
1584
af203d54 1585 // For extensions we need to know arrow size, text size and extension size: get it from aspect
1586 Quantity_Length anArrowLength = aDimensionAspect->ArrowAspect()->Length();
1587
1588 // prepare label string and compute its geometrical width
1589 Standard_Real aLabelWidth;
1590 TCollection_ExtendedString aLabelString = GetValueString (aLabelWidth);
1591
1592 // Add margins to cut dimension lines for 3d text
1593 if (aDimensionAspect->IsText3d())
1594 {
1595 aLabelWidth += aDimensionAspect->TextAspect()->Height() * THE_3D_TEXT_MARGIN * 2.0;
1596 }
1597
1598 // Handle user-defined and automatic arrow placement
1599 switch (aDimensionAspect->ArrowOrientation())
1600 {
1601 case Prs3d_DAO_External: theIsArrowsExternal = true; break;
1602 case Prs3d_DAO_Internal: theIsArrowsExternal = false; break;
1603 case Prs3d_DAO_Fit:
1604 {
1605 // Add margin to ensure a small tail between text and arrow
1606 Standard_Real anArrowMargin = aDimensionAspect->IsText3d()
1607 ? aDimensionAspect->TextAspect()->Height() * THE_3D_TEXT_MARGIN
1608 : 0.0;
1609
1610 Standard_Real aDimensionWidth = aLineBegPoint.Distance (aLineEndPoint);
1611 Standard_Real anArrowsWidth = theIsOneSide
1612 ? anArrowLength + anArrowMargin
1613 : (anArrowLength + anArrowMargin) * 2.0;
1614
1615 theIsArrowsExternal = aDimensionWidth < aLabelWidth + anArrowsWidth;
1616 break;
1617 }
1618 }
1619
1620 // Handle user-defined and automatic text placement
1621 switch (theHorizontalTextPos)
1622 {
1623 case Prs3d_DTHP_Left : theLabelPosition |= LabelPosition_Left; break;
1624 case Prs3d_DTHP_Right : theLabelPosition |= LabelPosition_Right; break;
1625 case Prs3d_DTHP_Center: theLabelPosition |= LabelPosition_HCenter; break;
1626 case Prs3d_DTHP_Fit:
1627 {
1628 Standard_Real aDimensionWidth = aLineBegPoint.Distance (aLineEndPoint);
1629 Standard_Real anArrowsWidth = theIsOneSide ? anArrowLength : 2.0 * anArrowLength;
1630 Standard_Real aContentWidth = theIsArrowsExternal ? aLabelWidth : aLabelWidth + anArrowsWidth;
1631
1632 theLabelPosition |= aDimensionWidth < aContentWidth ? LabelPosition_Left : LabelPosition_HCenter;
1633 break;
1634 }
1635 }
1636
1637 // Handle vertical text placement options
1638 switch (aDimensionAspect->TextVerticalPosition())
1639 {
1640 case Prs3d_DTVP_Above : theLabelPosition |= LabelPosition_Above; break;
1641 case Prs3d_DTVP_Below : theLabelPosition |= LabelPosition_Below; break;
1642 case Prs3d_DTVP_Center : theLabelPosition |= LabelPosition_VCenter; break;
1643 }
1644}
1645
1646//=======================================================================
1647//function : UnsetFixedTextPosition
1648//purpose :
1649//=======================================================================
1650void AIS_Dimension::UnsetFixedTextPosition()
1651{
1652 myIsTextPositionFixed = Standard_False;
1653 myFixedTextPosition = gp::Origin();
1654}
Open CASCADE Technology repository