1 // Created on: 1992-01-15
3 // Copyright (c) 1992-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _V3d_View_HeaderFile
18 #define _V3d_View_HeaderFile
20 #include <Aspect_Background.hxx>
21 #include <Aspect_FillMethod.hxx>
22 #include <Aspect_GradientBackground.hxx>
23 #include <Aspect_GradientFillMethod.hxx>
24 #include <Aspect_Handle.hxx>
25 #include <Aspect_RenderingContext.hxx>
26 #include <Aspect_TypeOfTriedronPosition.hxx>
27 #include <Bnd_Box.hxx>
31 #include <Graphic3d_BufferType.hxx>
32 #include <Graphic3d_Camera.hxx>
33 #include <Graphic3d_ClipPlane.hxx>
34 #include <Graphic3d_CView.hxx>
35 #include <Graphic3d_GraduatedTrihedron.hxx>
36 #include <Graphic3d_RenderingParams.hxx>
37 #include <Graphic3d_SequenceOfHClipPlane.hxx>
38 #include <Graphic3d_TypeOfShadingModel.hxx>
39 #include <Graphic3d_Vertex.hxx>
40 #include <Image_PixMap.hxx>
41 #include <Quantity_TypeOfColor.hxx>
42 #include <TColStd_Array2OfReal.hxx>
43 #include <TColStd_ListIteratorOfListOfTransient.hxx>
44 #include <V3d_ImageDumpOptions.hxx>
45 #include <V3d_ListOfLight.hxx>
46 #include <V3d_Viewer.hxx>
47 #include <V3d_Trihedron.hxx>
48 #include <V3d_TypeOfAxe.hxx>
49 #include <V3d_TypeOfBackfacingModel.hxx>
50 #include <V3d_TypeOfOrientation.hxx>
51 #include <V3d_TypeOfView.hxx>
52 #include <V3d_TypeOfVisualization.hxx>
56 class Graphic3d_Group;
57 class Graphic3d_Structure;
58 class Graphic3d_TextureEnv;
60 DEFINE_STANDARD_HANDLE(V3d_View, Standard_Transient)
62 //! Defines the application object VIEW for the
63 //! VIEWER application.
64 //! The methods of this class allow the editing
65 //! and inquiring the parameters linked to the view.
66 //! Provides a set of services common to all types of view.
67 //! Warning: The default parameters are defined by the class
68 //! Viewer (Example : SetDefaultViewSize()).
69 //! Certain methods are mouse oriented, and it is
70 //! necessary to know the difference between the start and
71 //! the continuation of this gesture in putting the method
73 //! Example : Shifting the eye-view along the screen axes.
75 //! View->Move(10.,20.,0.,True) (Starting motion)
76 //! View->Move(15.,-5.,0.,False) (Next motion)
77 class V3d_View : public Standard_Transient
82 //! Initializes the view.
83 Standard_EXPORT V3d_View (const Handle(V3d_Viewer)& theViewer, const V3d_TypeOfView theType = V3d_ORTHOGRAPHIC);
85 //! Initializes the view by copying.
86 Standard_EXPORT V3d_View (const Handle(V3d_Viewer)& theViewer, const Handle(V3d_View)& theView);
88 //! Default destructor.
89 Standard_EXPORT virtual ~V3d_View();
91 //! Activates the view in the specified Window
92 //! If <aContext> is not NULL the graphic context is used
93 //! to draw something in this view.
94 //! Otherwise an internal graphic context is created.
95 //! Warning: The view is centered and resized to preserve
96 //! the height/width ratio of the window.
97 Standard_EXPORT void SetWindow (const Handle(Aspect_Window)& theWindow,
98 const Aspect_RenderingContext theContext = NULL);
100 Standard_EXPORT void SetMagnify (const Handle(Aspect_Window)& theWindow,
101 const Handle(V3d_View)& thePreviousView,
102 const Standard_Integer theX1,
103 const Standard_Integer theY1,
104 const Standard_Integer theX2,
105 const Standard_Integer theY2);
107 //! Destroys the view.
108 Standard_EXPORT void Remove();
110 //! Deprecated, Redraw() should be used instead.
111 Standard_EXPORT void Update() const;
113 //! Redisplays the view even if there has not
114 //! been any modification.
115 //! Must be called if the view is shown.
116 //! (Ex: DeIconification ) .
117 Standard_EXPORT virtual void Redraw() const;
119 //! Updates layer of immediate presentations.
120 Standard_EXPORT virtual void RedrawImmediate() const;
122 //! Invalidates view content but does not redraw it.
123 Standard_EXPORT void Invalidate() const;
125 //! Returns true if cached view content has been invalidated.
126 Standard_EXPORT Standard_Boolean IsInvalidated() const;
128 //! Returns true if immediate layer content has been invalidated.
129 Standard_Boolean IsInvalidatedImmediate() const { return myIsInvalidatedImmediate; }
131 //! Invalidates view content within immediate layer but does not redraw it.
132 void InvalidateImmediate() { myIsInvalidatedImmediate = Standard_True; }
134 //! Must be called when the window supporting the
135 //! view changes size.
136 //! if the view is not mapped on a window.
137 //! Warning: The view is centered and resized to preserve
138 //! the height/width ratio of the window.
139 Standard_EXPORT void MustBeResized();
141 //! Must be called when the window supporting the
142 //! view is mapped or unmapped.
143 Standard_EXPORT void DoMapping();
145 //! Returns the status of the view regarding
146 //! the displayed structures inside
147 //! Returns True is The View is empty
148 Standard_EXPORT Standard_Boolean IsEmpty() const;
150 //! Updates the lights of the view.
151 Standard_EXPORT void UpdateLights() const;
153 //! Sets the automatic z-fit mode and its parameters.
154 //! The auto z-fit has extra parameters which can controlled from application level
155 //! to ensure that the size of viewing volume will be sufficiently large to cover
156 //! the depth of unmanaged objects, for example, transformation persistent ones.
157 //! @param theScaleFactor [in] the scale factor for Z-range.
158 //! The range between Z-min, Z-max projection volume planes
159 //! evaluated by z fitting method will be scaled using this coefficient.
160 //! Program error exception is thrown if negative or zero value
162 Standard_EXPORT void SetAutoZFitMode (const Standard_Boolean theIsOn, const Standard_Real theScaleFactor = 1.0);
164 //! returns TRUE if automatic z-fit mode is turned on.
165 Standard_Boolean AutoZFitMode() const { return myAutoZFitIsOn; }
167 //! returns scale factor parameter of automatic z-fit mode.
168 Standard_Real AutoZFitScaleFactor() const { return myAutoZFitScaleFactor; }
170 //! If automatic z-range fitting is turned on, adjusts Z-min and Z-max
171 //! projection volume planes with call to ZFitAll.
172 Standard_EXPORT void AutoZFit() const;
174 //! Change Z-min and Z-max planes of projection volume to match the
175 //! displayed objects.
176 Standard_EXPORT void ZFitAll (const Standard_Real theScaleFactor = 1.0) const;
178 //! Defines the background color of the view by the color definition type and the three corresponding values.
179 Standard_EXPORT void SetBackgroundColor (const Quantity_TypeOfColor theType,
180 const Standard_Real theV1,
181 const Standard_Real theV2,
182 const Standard_Real theV3);
184 //! Defines the background color of the view.
185 Standard_EXPORT void SetBackgroundColor (const Quantity_Color& theColor);
187 //! Defines the gradient background colors of the view by supplying the colors
188 //! and the fill method (horizontal by default).
189 Standard_EXPORT void SetBgGradientColors (const Quantity_Color& theColor1,
190 const Quantity_Color& theColor2,
191 const Aspect_GradientFillMethod theFillStyle = Aspect_GFM_HOR,
192 const Standard_Boolean theToUpdate = Standard_False);
194 //! Defines the gradient background fill method of the view.
195 Standard_EXPORT void SetBgGradientStyle (const Aspect_GradientFillMethod theMethod = Aspect_GFM_HOR,
196 const Standard_Boolean theToUpdate = Standard_False);
198 //! Defines the background texture of the view by supplying the texture image file name
199 //! and fill method (centered by default).
200 Standard_EXPORT void SetBackgroundImage (const Standard_CString theFileName,
201 const Aspect_FillMethod theFillStyle = Aspect_FM_CENTERED,
202 const Standard_Boolean theToUpdate = Standard_False);
204 //! Defines the background texture of the view by supplying the texture and fill method (centered by default)
205 Standard_EXPORT void SetBackgroundImage (const Handle(Graphic3d_Texture2D)& theTexture,
206 const Aspect_FillMethod theFillStyle = Aspect_FM_CENTERED,
207 const Standard_Boolean theToUpdate = Standard_False);
209 //! Defines the textured background fill method of the view.
210 Standard_EXPORT void SetBgImageStyle (const Aspect_FillMethod theFillStyle,
211 const Standard_Boolean theToUpdate = Standard_False);
213 //! Sets environment cubemap as background.
214 //! @param theCubeMap cubemap source to be set as background
215 //! @param theToUpdatePBREnv defines whether IBL maps will be generated or not (see 'GeneratePBREnvironment')
216 Standard_EXPORT void SetBackgroundCubeMap (const Handle(Graphic3d_CubeMap)& theCubeMap,
217 Standard_Boolean theToUpdatePBREnv = Standard_True,
218 Standard_Boolean theToUpdate = Standard_False);
220 //! Generates PBR specular probe and irradiance map
221 //! in order to provide environment indirect illumination in PBR shading model (Image Based Lighting).
222 //! The source of environment data is background cubemap.
223 //! If PBR is unavailable it does nothing.
224 //! If PBR is available but there is no cubemap being set to background it clears all IBL maps (see 'ClearPBREnvironment').
225 Standard_EXPORT void GeneratePBREnvironment (Standard_Boolean theToUpdate = Standard_False);
227 //! Fills PBR specular probe and irradiance map with white color.
228 //! So that environment indirect illumination will be constant and will be fully controlled by ambient light sources.
229 //! If PBR is unavailable it does nothing.
230 Standard_EXPORT void ClearPBREnvironment (Standard_Boolean theToUpdate = Standard_False);
232 //! Definition of an axis from its origin and
233 //! its orientation .
234 //! This will be the current axis for rotations and movements.
235 //! Warning! raises BadValue from V3d if the vector normal is NULL. .
236 Standard_EXPORT void SetAxis (const Standard_Real X, const Standard_Real Y, const Standard_Real Z,
237 const Standard_Real Vx, const Standard_Real Vy, const Standard_Real Vz);
239 //! Sets the environment texture to use. No environment texture by default.
240 Standard_EXPORT void SetTextureEnv (const Handle(Graphic3d_TextureEnv)& theTexture);
242 //! Defines the visualization type in the view.
243 Standard_EXPORT void SetVisualization (const V3d_TypeOfVisualization theType);
245 //! Activates theLight in the view.
246 Standard_EXPORT void SetLightOn (const Handle(V3d_Light)& theLight);
248 //! Activates all the lights defined in this view.
249 Standard_EXPORT void SetLightOn();
251 //! Deactivate theLight in this view.
252 Standard_EXPORT void SetLightOff (const Handle(V3d_Light)& theLight);
254 //! Deactivate all the Lights defined in this view.
255 Standard_EXPORT void SetLightOff();
257 //! Returns TRUE when the light is active in this view.
258 Standard_EXPORT Standard_Boolean IsActiveLight (const Handle(V3d_Light)& theLight) const;
260 //! sets the immediate update mode and returns the previous one.
261 Standard_EXPORT Standard_Boolean SetImmediateUpdate (const Standard_Boolean theImmediateUpdate);
263 //! Returns trihedron object.
264 const Handle(V3d_Trihedron)& Trihedron (bool theToCreate = true)
266 if (myTrihedron.IsNull() && theToCreate)
268 myTrihedron = new V3d_Trihedron();
273 //! Customization of the ZBUFFER Triedron.
274 //! XColor,YColor,ZColor - colors of axis
275 //! SizeRatio - ratio of decreasing of the trihedron size when its physical
276 //! position comes out of the view
277 //! AxisDiametr - diameter relatively to axis length
278 //! NbFacettes - number of facets of cylinders and cones
279 Standard_EXPORT void ZBufferTriedronSetup (const Quantity_Color& theXColor = Quantity_NOC_RED,
280 const Quantity_Color& theYColor = Quantity_NOC_GREEN,
281 const Quantity_Color& theZColor = Quantity_NOC_BLUE1,
282 const Standard_Real theSizeRatio = 0.8,
283 const Standard_Real theAxisDiametr = 0.05,
284 const Standard_Integer theNbFacettes = 12);
286 //! Display of the Triedron.
287 //! Initialize position, color and length of Triedron axes.
288 //! The scale is a percent of the window width.
289 Standard_EXPORT void TriedronDisplay (const Aspect_TypeOfTriedronPosition thePosition = Aspect_TOTP_CENTER,
290 const Quantity_Color& theColor = Quantity_NOC_WHITE,
291 const Standard_Real theScale = 0.02,
292 const V3d_TypeOfVisualization theMode = V3d_WIREFRAME);
294 //! Erases the Triedron.
295 Standard_EXPORT void TriedronErase();
297 //! Returns data of a graduated trihedron.
298 Standard_EXPORT const Graphic3d_GraduatedTrihedron& GetGraduatedTrihedron() const;
300 //! Displays a graduated trihedron.
301 Standard_EXPORT void GraduatedTrihedronDisplay (const Graphic3d_GraduatedTrihedron& theTrihedronData);
303 //! Erases a graduated trihedron from the view.
304 Standard_EXPORT void GraduatedTrihedronErase();
306 //! modify the Projection of the view perpendicularly to
307 //! the privileged plane of the viewer.
308 Standard_EXPORT void SetFront();
310 //! Rotates the eye about the coordinate system of
311 //! reference of the screen
312 //! for which the origin is the view point of the projection,
313 //! with a relative angular value in RADIANS with respect to
314 //! the initial position expressed by Start = Standard_True
315 //! Warning! raises BadValue from V3d
316 //! If the eye, the view point, or the high point are
317 //! aligned or confused.
318 Standard_EXPORT void Rotate (const Standard_Real Ax, const Standard_Real Ay, const Standard_Real Az, const Standard_Boolean Start = Standard_True);
320 //! Rotates the eye about the coordinate system of
321 //! reference of the screen
322 //! for which the origin is Gravity point {X,Y,Z},
323 //! with a relative angular value in RADIANS with respect to
324 //! the initial position expressed by Start = Standard_True
325 //! If the eye, the view point, or the high point are
326 //! aligned or confused.
327 Standard_EXPORT void Rotate (const Standard_Real Ax, const Standard_Real Ay, const Standard_Real Az,
328 const Standard_Real X, const Standard_Real Y, const Standard_Real Z,
329 const Standard_Boolean Start = Standard_True);
331 //! Rotates the eye about one of the coordinate axes of
332 //! of the view for which the origin is the Gravity point{X,Y,Z}
333 //! with an relative angular value in RADIANS with
334 //! respect to the initial position expressed by
335 //! Start = Standard_True
336 Standard_EXPORT void Rotate (const V3d_TypeOfAxe Axe,
337 const Standard_Real Angle,
338 const Standard_Real X, const Standard_Real Y, const Standard_Real Z,
339 const Standard_Boolean Start = Standard_True);
341 //! Rotates the eye about one of the coordinate axes of
342 //! of the view for which the origin is the view point of the
343 //! projection with an relative angular value in RADIANS with
344 //! respect to the initial position expressed by
345 //! Start = Standard_True
346 Standard_EXPORT void Rotate (const V3d_TypeOfAxe Axe, const Standard_Real Angle, const Standard_Boolean Start = Standard_True);
348 //! Rotates the eye around the current axis a relative
349 //! angular value in RADIANS with respect to the initial
350 //! position expressed by Start = Standard_True
351 Standard_EXPORT void Rotate (const Standard_Real Angle, const Standard_Boolean Start = Standard_True);
353 //! Movement of the eye parallel to the coordinate system
354 //! of reference of the screen a distance relative to the
355 //! initial position expressed by Start = Standard_True.
356 Standard_EXPORT void Move (const Standard_Real Dx, const Standard_Real Dy, const Standard_Real Dz, const Standard_Boolean Start = Standard_True);
358 //! Movement of the eye parallel to one of the axes of the
359 //! coordinate system of reference of the view a distance
360 //! relative to the initial position expressed by
361 //! Start = Standard_True.
362 Standard_EXPORT void Move (const V3d_TypeOfAxe Axe, const Standard_Real Length, const Standard_Boolean Start = Standard_True);
364 //! Movement of the eye parllel to the current axis
365 //! a distance relative to the initial position
366 //! expressed by Start = Standard_True
367 Standard_EXPORT void Move (const Standard_Real Length, const Standard_Boolean Start = Standard_True);
369 //! Movement of the ye and the view point parallel to the
370 //! frame of reference of the screen a distance relative
371 //! to the initial position expressed by
372 //! Start = Standard_True
373 Standard_EXPORT void Translate (const Standard_Real Dx, const Standard_Real Dy, const Standard_Real Dz, const Standard_Boolean Start = Standard_True);
375 //! Movement of the eye and the view point parallel to one
376 //! of the axes of the fame of reference of the view a
377 //! distance relative to the initial position
378 //! expressed by Start = Standard_True
379 Standard_EXPORT void Translate (const V3d_TypeOfAxe Axe, const Standard_Real Length, const Standard_Boolean Start = Standard_True);
381 //! Movement of the eye and view point parallel to
382 //! the current axis a distance relative to the initial
383 //! position expressed by Start = Standard_True
384 Standard_EXPORT void Translate (const Standard_Real Length, const Standard_Boolean Start = Standard_True);
386 //! places the point of the view corresponding
387 //! at the pixel position x,y at the center of the window
388 //! and updates the view.
389 Standard_EXPORT void Place (const Standard_Integer theXp, const Standard_Integer theYp, const Standard_Real theZoomFactor = 1);
391 //! Rotation of the view point around the frame of reference
392 //! of the screen for which the origin is the eye of the
393 //! projection with a relative angular value in RADIANS
394 //! with respect to the initial position expressed by
395 //! Start = Standard_True
396 Standard_EXPORT void Turn (const Standard_Real Ax, const Standard_Real Ay, const Standard_Real Az, const Standard_Boolean Start = Standard_True);
398 //! Rotation of the view point around one of the axes of the
399 //! frame of reference of the view for which the origin is
400 //! the eye of the projection with an angular value in
401 //! RADIANS relative to the initial position expressed by
402 //! Start = Standard_True
403 Standard_EXPORT void Turn (const V3d_TypeOfAxe Axe, const Standard_Real Angle, const Standard_Boolean Start = Standard_True);
405 //! Rotation of the view point around the current axis an
406 //! angular value in RADIANS relative to the initial
407 //! position expressed by Start = Standard_True
408 Standard_EXPORT void Turn (const Standard_Real Angle, const Standard_Boolean Start = Standard_True);
410 //! Defines the angular position of the high point of
411 //! the reference frame of the view with respect to the
412 //! Y screen axis with an absolute angular value in
414 Standard_EXPORT void SetTwist (const Standard_Real Angle);
416 //! Defines the position of the eye..
417 Standard_EXPORT void SetEye (const Standard_Real X, const Standard_Real Y, const Standard_Real Z);
419 //! Defines the Depth of the eye from the view point
420 //! without update the projection .
421 Standard_EXPORT void SetDepth (const Standard_Real Depth);
423 //! Defines the orientation of the projection.
424 Standard_EXPORT void SetProj (const Standard_Real Vx, const Standard_Real Vy, const Standard_Real Vz);
426 //! Defines the orientation of the projection .
427 //! @param theOrientation camera direction
428 //! @param theIsYup flag indicating Y-up (TRUE) or Z-up (FALSE) convention
429 Standard_EXPORT void SetProj (const V3d_TypeOfOrientation theOrientation,
430 const Standard_Boolean theIsYup = Standard_False);
432 //! Defines the position of the view point.
433 Standard_EXPORT void SetAt (const Standard_Real X, const Standard_Real Y, const Standard_Real Z);
435 //! Defines the orientation of the high point.
436 Standard_EXPORT void SetUp (const Standard_Real Vx, const Standard_Real Vy, const Standard_Real Vz);
438 //! Defines the orientation(SO) of the high point.
439 Standard_EXPORT void SetUp (const V3d_TypeOfOrientation Orientation);
441 //! Saves the current state of the orientation of the view
442 //! which will be the return state at ResetViewOrientation.
443 Standard_EXPORT void SetViewOrientationDefault();
445 //! Resets the orientation of the view.
447 Standard_EXPORT void ResetViewOrientation();
449 //! Translates the center of the view along "x" and "y" axes of
450 //! view projection. Can be used to perform interactive panning operation.
451 //! In that case the DXv, DXy parameters specify panning relative to the
452 //! point where the operation is started.
453 //! @param theDXv [in] the relative panning on "x" axis of view projection, in view space coordinates.
454 //! @param theDYv [in] the relative panning on "y" axis of view projection, in view space coordinates.
455 //! @param theZoomFactor [in] the zooming factor.
456 //! @param theToStart [in] pass TRUE when starting panning to remember view
457 //! state prior to panning for relative arguments. If panning is started,
458 //! passing {0, 0} for {theDXv, theDYv} will return view to initial state.
459 //! Performs update of view.
460 Standard_EXPORT void Panning (const Standard_Real theDXv, const Standard_Real theDYv, const Standard_Real theZoomFactor = 1, const Standard_Boolean theToStart = Standard_True);
462 //! Relocates center of screen to the point, determined by
463 //! {Xp, Yp} pixel coordinates relative to the bottom-left corner of
464 //! screen. To calculate pixel coordinates for any point from world
465 //! coordinate space, it can be projected using "Project".
466 //! @param theXp [in] the x coordinate.
467 //! @param theYp [in] the y coordinate.
468 Standard_EXPORT void SetCenter (const Standard_Integer theXp, const Standard_Integer theYp);
470 //! Defines the view projection size in its maximum dimension,
471 //! keeping the initial height/width ratio unchanged.
472 Standard_EXPORT void SetSize (const Standard_Real theSize);
474 //! Defines the Depth size of the view
475 //! Front Plane will be set to Size/2.
476 //! Back Plane will be set to -Size/2.
477 //! Any Object located Above the Front Plane or
478 //! behind the Back Plane will be Clipped .
479 //! NOTE than the XY Size of the View is NOT modified .
480 Standard_EXPORT void SetZSize (const Standard_Real SetZSize);
482 //! Zooms the view by a factor relative to the initial
483 //! value expressed by Start = Standard_True
484 //! Updates the view.
485 Standard_EXPORT void SetZoom (const Standard_Real Coef, const Standard_Boolean Start = Standard_True);
487 //! Zooms the view by a factor relative to the value
488 //! initialised by SetViewMappingDefault().
489 //! Updates the view.
490 Standard_EXPORT void SetScale (const Standard_Real Coef);
492 //! Sets anisotropic (axial) scale factors <Sx>, <Sy>, <Sz> for view <me>.
493 //! Anisotropic scaling operation is performed through multiplying
494 //! the current view orientation matrix by a scaling matrix:
499 //! Updates the view.
500 Standard_EXPORT void SetAxialScale (const Standard_Real Sx, const Standard_Real Sy, const Standard_Real Sz);
502 //! Adjust view parameters to fit the displayed scene, respecting height / width ratio.
503 //! The Z clipping range (depth range) is fitted if AutoZFit flag is TRUE.
504 //! Throws program error exception if margin coefficient is < 0 or >= 1.
505 //! Updates the view.
506 //! @param theMargin [in] the margin coefficient for view borders.
507 //! @param theToUpdate [in] flag to perform view update.
508 Standard_EXPORT void FitAll (const Standard_Real theMargin = 0.01, const Standard_Boolean theToUpdate = Standard_True);
510 //! Adjust view parameters to fit the displayed scene, respecting height / width ratio
511 //! according to the custom bounding box given.
512 //! Throws program error exception if margin coefficient is < 0 or >= 1.
513 //! Updates the view.
514 //! @param theBox [in] the custom bounding box to fit.
515 //! @param theMargin [in] the margin coefficient for view borders.
516 //! @param theToUpdate [in] flag to perform view update.
517 Standard_EXPORT void FitAll (const Bnd_Box& theBox, const Standard_Real theMargin = 0.01, const Standard_Boolean theToUpdate = Standard_True);
519 //! Adjusts the viewing volume so as not to clip the displayed objects by front and back
520 //! and back clipping planes. Also sets depth value automatically depending on the
521 //! calculated Z size and Aspect parameter.
522 //! NOTE than the original XY size of the view is NOT modified .
523 Standard_EXPORT void DepthFitAll (const Standard_Real Aspect = 0.01, const Standard_Real Margin = 0.01);
525 //! Centers the defined projection window so that it occupies
526 //! the maximum space while respecting the initial
527 //! height/width ratio.
528 //! NOTE than the original Z size of the view is NOT modified .
529 Standard_EXPORT void FitAll (const Standard_Real theMinXv, const Standard_Real theMinYv, const Standard_Real theMaxXv, const Standard_Real theMaxYv);
531 //! Centers the defined PIXEL window so that it occupies
532 //! the maximum space while respecting the initial height/width ratio.
533 //! NOTE than the original Z size of the view is NOT modified.
534 //! @param theMinXp [in] pixel coordinates of minimal corner on x screen axis.
535 //! @param theMinYp [in] pixel coordinates of minimal corner on y screen axis.
536 //! @param theMaxXp [in] pixel coordinates of maximal corner on x screen axis.
537 //! @param theMaxYp [in] pixel coordinates of maximal corner on y screen axis.
538 Standard_EXPORT void WindowFit (const Standard_Integer theMinXp, const Standard_Integer theMinYp, const Standard_Integer theMaxXp, const Standard_Integer theMaxYp);
540 //! Saves the current view mapping. This will be the
541 //! state returned from ResetViewmapping.
542 Standard_EXPORT void SetViewMappingDefault();
544 //! Resets the centering of the view.
546 Standard_EXPORT void ResetViewMapping();
548 //! Resets the centering and the orientation of the view.
549 Standard_EXPORT void Reset (const Standard_Boolean theToUpdate = Standard_True);
551 //! Converts the PIXEL value
552 //! to a value in the projection plane.
553 Standard_EXPORT Standard_Real Convert (const Standard_Integer Vp) const;
555 //! Converts the point PIXEL into a point projected
556 //! in the reference frame of the projection plane.
557 Standard_EXPORT void Convert (const Standard_Integer Xp, const Standard_Integer Yp,
558 Standard_Real& Xv, Standard_Real& Yv) const;
560 //! Converts tha value of the projection plane into
562 Standard_EXPORT Standard_Integer Convert (const Standard_Real Vv) const;
564 //! Converts the point defined in the reference frame
565 //! of the projection plane into a point PIXEL.
566 Standard_EXPORT void Convert (const Standard_Real Xv, const Standard_Real Yv,
567 Standard_Integer& Xp, Standard_Integer& Yp) const;
569 //! Converts the projected point into a point
570 //! in the reference frame of the view corresponding
571 //! to the intersection with the projection plane
572 //! of the eye/view point vector.
573 Standard_EXPORT void Convert (const Standard_Integer Xp, const Standard_Integer Yp,
574 Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const;
576 //! Converts the projected point into a point
577 //! in the reference frame of the view corresponding
578 //! to the intersection with the projection plane
579 //! of the eye/view point vector and returns the
580 //! projection ray for further computations.
581 Standard_EXPORT void ConvertWithProj (const Standard_Integer Xp, const Standard_Integer Yp,
582 Standard_Real& X, Standard_Real& Y, Standard_Real& Z,
583 Standard_Real& Vx, Standard_Real& Vy, Standard_Real& Vz) const;
585 //! Converts the projected point into the nearest grid point
586 //! in the reference frame of the view corresponding
587 //! to the intersection with the projection plane
588 //! of the eye/view point vector and display the grid marker.
589 //! Warning: When the grid is not active the result is identical to the above Convert() method.
591 //! 1) Enable the grid echo display
592 //! myViewer->SetGridEcho(Standard_True);
593 //! 2) When application receive a move event:
594 //! 2.1) Check if any object is detected
595 //! if( myInteractiveContext->MoveTo(x,y) == AIS_SOD_Nothing ) {
596 //! 2.2) Check if the grid is active
597 //! if( myViewer->Grid()->IsActive() ) {
598 //! 2.3) Display the grid echo and gets the grid point
599 //! myView->ConvertToGrid(x,y,X,Y,Z);
600 //! myView->Viewer()->ShowGridEcho (myView, Graphic3d_Vertex (X,Y,Z));
601 //! myView->RedrawImmediate();
602 //! 2.4) Else this is the standard case
603 //! } else myView->Convert(x,y,X,Y,Z);
604 Standard_EXPORT void ConvertToGrid (const Standard_Integer Xp, const Standard_Integer Yp,
605 Standard_Real& Xg, Standard_Real& Yg, Standard_Real& Zg) const;
607 //! Converts the point into the nearest grid point
608 //! and display the grid marker.
609 Standard_EXPORT void ConvertToGrid (const Standard_Real X, const Standard_Real Y, const Standard_Real Z,
610 Standard_Real& Xg, Standard_Real& Yg, Standard_Real& Zg) const;
612 //! Projects the point defined in the reference frame of
613 //! the view into the projected point in the associated window.
614 Standard_EXPORT void Convert (const Standard_Real X, const Standard_Real Y, const Standard_Real Z,
615 Standard_Integer& Xp, Standard_Integer& Yp) const;
617 //! Converts the point defined in the user space of
618 //! the view to the projection plane at the depth
619 //! relative to theZ.
620 Standard_EXPORT void Project (const Standard_Real theX,
621 const Standard_Real theY,
622 const Standard_Real theZ,
623 Standard_Real& theXp,
624 Standard_Real& theYp) const;
626 //! Converts the point defined in the user space of
627 //! the view to the projection plane at the depth
628 //! relative to theZ.
629 Standard_EXPORT void Project (const Standard_Real theX,
630 const Standard_Real theY,
631 const Standard_Real theZ,
632 Standard_Real& theXp,
633 Standard_Real& theYp,
634 Standard_Real& theZp) const;
636 //! Returns the Background color values of the view
637 //! depending of the color Type.
638 Standard_EXPORT void BackgroundColor (const Quantity_TypeOfColor Type, Standard_Real& V1, Standard_Real& V2, Standard_Real& V3) const;
640 //! Returns the Background color object of the view.
641 Standard_EXPORT Quantity_Color BackgroundColor() const;
643 //! Returns the gradient background colors of the view.
644 Standard_EXPORT void GradientBackgroundColors (Quantity_Color& theColor1, Quantity_Color& theColor2) const;
646 //! Returns the gradient background of the view.
647 Standard_EXPORT Aspect_GradientBackground GradientBackground() const;
649 //! Returns the current value of the zoom expressed with
650 //! respect to SetViewMappingDefault().
651 Standard_EXPORT Standard_Real Scale() const;
653 //! Returns the current values of the anisotropic (axial) scale factors.
654 Standard_EXPORT void AxialScale (Standard_Real& Sx, Standard_Real& Sy, Standard_Real& Sz) const;
656 //! Returns the height and width of the view.
657 Standard_EXPORT void Size (Standard_Real& Width, Standard_Real& Height) const;
659 //! Returns the Depth of the view .
660 Standard_EXPORT Standard_Real ZSize() const;
662 //! Returns the position of the eye.
663 Standard_EXPORT void Eye (Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const;
665 //! Returns the position of point which emanating the projections.
666 void FocalReferencePoint (Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const { Eye (X,Y,Z); }
668 //! Returns the coordinate of the point (Xpix,Ypix)
669 //! in the view (XP,YP,ZP), and the projection vector of the
670 //! view passing by the point (for PerspectiveView).
671 Standard_EXPORT void ProjReferenceAxe (const Standard_Integer Xpix, const Standard_Integer Ypix,
672 Standard_Real& XP, Standard_Real& YP, Standard_Real& ZP,
673 Standard_Real& VX, Standard_Real& VY, Standard_Real& VZ) const;
675 //! Returns the Distance between the Eye and View Point.
676 Standard_EXPORT Standard_Real Depth() const;
678 //! Returns the projection vector.
679 Standard_EXPORT void Proj (Standard_Real& Vx, Standard_Real& Vy, Standard_Real& Vz) const;
681 //! Returns the position of the view point.
682 Standard_EXPORT void At (Standard_Real& X, Standard_Real& Y, Standard_Real& Z) const;
684 //! Returns the vector giving the position of the high point.
685 Standard_EXPORT void Up (Standard_Real& Vx, Standard_Real& Vy, Standard_Real& Vz) const;
687 //! Returns in RADIANS the orientation of the view around
688 //! the visual axis measured from the Y axis of the screen.
689 Standard_EXPORT Standard_Real Twist() const;
691 //! Returns the current shading model; Graphic3d_TypeOfShadingModel_Phong by default.
692 Standard_EXPORT Graphic3d_TypeOfShadingModel ShadingModel() const;
694 //! Defines the shading model for the visualization.
695 Standard_EXPORT void SetShadingModel (const Graphic3d_TypeOfShadingModel theShadingModel);
697 Standard_EXPORT Handle(Graphic3d_TextureEnv) TextureEnv() const;
699 //! Returns the current visualisation mode.
700 Standard_EXPORT V3d_TypeOfVisualization Visualization() const;
702 //! Returns a list of active lights.
703 const V3d_ListOfLight& ActiveLights() const { return myActiveLights; }
705 //! Return iterator for defined lights.
706 V3d_ListOfLightIterator ActiveLightIterator() const { return V3d_ListOfLightIterator (myActiveLights); }
708 //! Returns the MAX number of light associated to the view.
709 Standard_EXPORT Standard_Integer LightLimit() const;
711 //! Returns the viewer in which the view has been created.
712 Handle(V3d_Viewer) Viewer() const { return MyViewer; }
714 //! Returns True if MyView is associated with a window .
715 Standard_EXPORT Standard_Boolean IfWindow() const;
717 //! Returns the Aspect Window associated with the view.
718 const Handle(Aspect_Window)& Window() const { return MyWindow; }
720 //! Returns the Type of the View
721 Standard_EXPORT V3d_TypeOfView Type() const;
723 //! Translates the center of the view along "x" and "y" axes of
724 //! view projection. Can be used to perform interactive panning operation.
725 //! In that case the DXp, DXp parameters specify panning relative to the
726 //! point where the operation is started.
727 //! @param theDXp [in] the relative panning on "x" axis of view projection, in pixels.
728 //! @param theDYp [in] the relative panning on "y" axis of view projection, in pixels.
729 //! @param theZoomFactor [in] the zooming factor.
730 //! @param theToStart [in] pass TRUE when starting panning to remember view
731 //! state prior to panning for relative arguments. Passing 0 for relative
732 //! panning parameter should return view panning to initial state.
733 //! Performs update of view.
734 Standard_EXPORT void Pan (const Standard_Integer theDXp, const Standard_Integer theDYp, const Standard_Real theZoomFactor = 1, const Standard_Boolean theToStart = Standard_True);
736 //! Zoom the view according to a zoom factor computed
737 //! from the distance between the 2 mouse position.
738 //! @param theXp1 [in] the x coordinate of first mouse position, in pixels.
739 //! @param theYp1 [in] the y coordinate of first mouse position, in pixels.
740 //! @param theXp2 [in] the x coordinate of second mouse position, in pixels.
741 //! @param theYp2 [in] the y coordinate of second mouse position, in pixels.
742 Standard_EXPORT void Zoom (const Standard_Integer theXp1, const Standard_Integer theYp1, const Standard_Integer theXp2, const Standard_Integer theYp2);
744 //! Defines starting point for ZoomAtPoint view operation.
745 //! @param theXp [in] the x mouse coordinate, in pixels.
746 //! @param theYp [in] the y mouse coordinate, in pixels.
747 Standard_EXPORT void StartZoomAtPoint (const Standard_Integer theXp, const Standard_Integer theYp);
749 //! Zooms the model at a pixel defined by the method StartZoomAtPoint().
750 Standard_EXPORT void ZoomAtPoint (const Standard_Integer theMouseStartX, const Standard_Integer theMouseStartY, const Standard_Integer theMouseEndX, const Standard_Integer theMouseEndY);
752 //! Performs anisotropic scaling of <me> view along the given <Axis>.
753 //! The scale factor is calculated on a basis of
754 //! the mouse pointer displacement <Dx,Dy>.
755 //! The calculated scale factor is then passed to SetAxialScale(Sx, Sy, Sz) method.
756 Standard_EXPORT void AxialScale (const Standard_Integer Dx, const Standard_Integer Dy, const V3d_TypeOfAxe Axis);
758 //! Begin the rotation of the view around the screen axis
759 //! according to the mouse position <X,Y>.
760 //! Warning: Enable rotation around the Z screen axis when <zRotationThreshold>
761 //! factor is > 0 soon the distance from the start point and the center
762 //! of the view is > (medium viewSize * <zRotationThreshold> ).
763 //! Generally a value of 0.4 is usable to rotate around XY screen axis
764 //! inside the circular threshold area and to rotate around Z screen axis
765 //! outside this area.
766 Standard_EXPORT void StartRotation (const Standard_Integer X, const Standard_Integer Y, const Standard_Real zRotationThreshold = 0.0);
768 //! Continues the rotation of the view
769 //! with an angle computed from the last and new mouse position <X,Y>.
770 Standard_EXPORT void Rotation (const Standard_Integer X, const Standard_Integer Y);
772 //! Change View Plane Distance for Perspective Views
773 //! Warning! raises TypeMismatch from Standard if the view
774 //! is not a perspective view.
775 Standard_EXPORT void SetFocale (const Standard_Real Focale);
777 //! Returns the View Plane Distance for Perspective Views
778 Standard_EXPORT Standard_Real Focale() const;
780 //! Returns the associated Graphic3d view.
781 const Handle(Graphic3d_CView)& View() const { return myView; }
783 //! Switches computed HLR mode in the view.
784 Standard_EXPORT void SetComputedMode (const Standard_Boolean theMode);
786 //! Returns the computed HLR mode state.
787 Standard_EXPORT Standard_Boolean ComputedMode() const;
789 //! idem than WindowFit
790 void WindowFitAll (const Standard_Integer Xmin, const Standard_Integer Ymin, const Standard_Integer Xmax, const Standard_Integer Ymax)
792 WindowFit (Xmin, Ymin, Xmax, Ymax);
795 //! Transform camera eye, center and scale to fit in the passed bounding box specified in WCS.
796 //! @param theCamera [in] the camera
797 //! @param theBox [in] the bounding box
798 //! @param theMargin [in] the margin coefficient for view borders
799 //! @param theResolution [in] the minimum size of projection of bounding box in Xv or Yv direction when it considered to be a thin plane or point (without a volume);
800 //! in this case only the center of camera is adjusted
801 //! @param theToEnlargeIfLine [in] when TRUE - in cases when the whole bounding box projected into thin line going along Z-axis of screen,
802 //! the view plane is enlarged such thatwe see the whole line on rotation, otherwise only the center of camera is adjusted.
803 //! @return TRUE if the fit all operation can be done
804 Standard_EXPORT Standard_Boolean FitMinMax (const Handle(Graphic3d_Camera)& theCamera,
805 const Bnd_Box& theBox,
806 const Standard_Real theMargin,
807 const Standard_Real theResolution = 0.0,
808 const Standard_Boolean theToEnlargeIfLine = Standard_True) const;
810 //! Defines or Updates the definition of the
812 Standard_EXPORT void SetGrid (const gp_Ax3& aPlane, const Handle(Aspect_Grid)& aGrid);
814 //! Defines or Updates the activity of the
816 Standard_EXPORT void SetGridActivity (const Standard_Boolean aFlag);
818 //! Dumps the full contents of the View into the image file. This is an alias for ToPixMap() with Image_AlienPixMap.
819 //! @param theFile destination image file (image format is determined by file extension like .png, .bmp, .jpg)
820 //! @param theBufferType buffer to dump
821 //! @return FALSE when the dump has failed
822 Standard_EXPORT Standard_Boolean Dump (const Standard_CString theFile, const Graphic3d_BufferType& theBufferType = Graphic3d_BT_RGB);
824 //! Dumps the full contents of the view to a pixmap with specified parameters.
825 //! Internally this method calls Redraw() with an offscreen render buffer of requested target size (theWidth x theHeight),
826 //! so that there is no need resizing a window control for making a dump of different size.
827 Standard_EXPORT Standard_Boolean ToPixMap (Image_PixMap& theImage,
828 const V3d_ImageDumpOptions& theParams);
830 //! Dumps the full contents of the view to a pixmap.
831 //! Internally this method calls Redraw() with an offscreen render buffer of requested target size (theWidth x theHeight),
832 //! so that there is no need resizing a window control for making a dump of different size.
833 //! @param theImage target image, will be re-allocated to match theWidth x theHeight
834 //! @param theWidth target image width
835 //! @param theHeight target image height
836 //! @param theBufferType type of the view buffer to dump (color / depth)
837 //! @param theToAdjustAspect when true, active view aspect ratio will be overridden by (theWidth / theHeight)
838 //! @param theStereoOptions how to dump stereographic camera
839 Standard_Boolean ToPixMap (Image_PixMap& theImage,
840 const Standard_Integer theWidth,
841 const Standard_Integer theHeight,
842 const Graphic3d_BufferType& theBufferType = Graphic3d_BT_RGB,
843 const Standard_Boolean theToAdjustAspect = Standard_True,
844 const V3d_StereoDumpOptions theStereoOptions = V3d_SDO_MONO)
846 V3d_ImageDumpOptions aParams;
847 aParams.Width = theWidth;
848 aParams.Height = theHeight;
849 aParams.BufferType = theBufferType;
850 aParams.StereoOptions = theStereoOptions;
851 aParams.ToAdjustAspect = theToAdjustAspect;
852 return ToPixMap (theImage, aParams);
855 //! Manages display of the back faces
856 Standard_EXPORT void SetBackFacingModel (const Graphic3d_TypeOfBackfacingModel theModel = Graphic3d_TypeOfBackfacingModel_Auto);
858 //! Returns current state of the back faces display; Graphic3d_TypeOfBackfacingModel_Auto by default,
859 //! which means that backface culling is defined by each presentation.
860 Standard_EXPORT Graphic3d_TypeOfBackfacingModel BackFacingModel() const;
862 //! Adds clip plane to the view. The composition of clip planes truncates the
863 //! rendering space to convex volume. Number of supported clip planes can be consulted
864 //! by PlaneLimit method of associated Graphic3d_GraphicDriver.
865 //! Please be aware that the planes which exceed the limit are ignored during rendering.
866 //! @param thePlane [in] the clip plane to be added to view.
867 Standard_EXPORT virtual void AddClipPlane (const Handle(Graphic3d_ClipPlane)& thePlane);
869 //! Removes clip plane from the view.
870 //! @param thePlane [in] the clip plane to be removed from view.
871 Standard_EXPORT virtual void RemoveClipPlane (const Handle(Graphic3d_ClipPlane)& thePlane);
874 //! @return sequence clip planes that have been set for the view
875 Standard_EXPORT const Handle(Graphic3d_SequenceOfHClipPlane)& ClipPlanes() const;
877 //! Sets sequence of clip planes to the view. The planes that have been set
878 //! before are removed from the view. The composition of clip planes
879 //! truncates the rendering space to convex volume. Number of supported
880 //! clip planes can be consulted by InquirePlaneLimit method of
881 //! Graphic3d_GraphicDriver. Please be aware that the planes that
882 //! exceed the limit are ignored during rendering.
883 //! @param thePlanes [in] the clip planes to set.
884 Standard_EXPORT void SetClipPlanes (const Handle(Graphic3d_SequenceOfHClipPlane)& thePlanes);
886 //! Returns the MAX number of clipping planes associated to the view.
887 Standard_EXPORT Standard_Integer PlaneLimit() const;
889 //! Change camera used by view.
890 Standard_EXPORT void SetCamera (const Handle(Graphic3d_Camera)& theCamera);
892 //! Returns camera object of the view.
893 //! @return: handle to camera object, or NULL if 3D view does not use
894 //! the camera approach.
895 Standard_EXPORT const Handle(Graphic3d_Camera)& Camera() const;
897 //! Return default camera.
898 const Handle(Graphic3d_Camera)& DefaultCamera() const { return myDefaultCamera; }
900 //! Returns current rendering parameters and effect settings.
901 //! By default it returns default parameters of current viewer.
902 //! To define view-specific settings use method V3d_View::ChangeRenderingParams().
903 //! @sa V3d_Viewer::DefaultRenderingParams()
904 Standard_EXPORT const Graphic3d_RenderingParams& RenderingParams() const;
906 //! Returns reference to current rendering parameters and effect settings.
907 Standard_EXPORT Graphic3d_RenderingParams& ChangeRenderingParams();
909 //! @return flag value of objects culling mechanism
910 Standard_Boolean IsCullingEnabled() const { return RenderingParams().FrustumCullingState == Graphic3d_RenderingParams::FrustumCulling_On; }
912 //! Turn on/off automatic culling of objects outside frustum (ON by default)
913 void SetFrustumCulling (Standard_Boolean theMode) { ChangeRenderingParams().FrustumCullingState = theMode ? Graphic3d_RenderingParams::FrustumCulling_On : Graphic3d_RenderingParams::FrustumCulling_Off; }
915 //! Fill in the dictionary with diagnostic info.
916 //! Should be called within rendering thread.
918 //! This API should be used only for user output or for creating automated reports.
919 //! The format of returned information (e.g. key-value layout)
920 //! is NOT part of this API and can be changed at any time.
921 //! Thus application should not parse returned information to weed out specific parameters.
922 //! @param theDict destination map for information
923 //! @param theFlags defines the information to be retrieved
924 Standard_EXPORT void DiagnosticInformation (TColStd_IndexedDataMapOfStringString& theDict,
925 Graphic3d_DiagnosticInfo theFlags) const;
927 //! Returns string with statistic performance info.
928 Standard_EXPORT TCollection_AsciiString StatisticInformation() const;
930 //! Fills in the dictionary with statistic performance info.
931 Standard_EXPORT void StatisticInformation (TColStd_IndexedDataMapOfStringString& theDict) const;
933 //! Returns the Objects number and the gravity center of ALL viewable points in the view
934 Standard_EXPORT gp_Pnt GravityPoint() const;
936 //! Dumps the content of me into the stream
937 Standard_EXPORT void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const;
939 DEFINE_STANDARD_RTTIEXT(V3d_View,Standard_Transient)
941 public: //! @name deprecated methods
943 //! Returns True if One light more can be
944 //! activated in this View.
945 Standard_DEPRECATED ("Deprecated method - ActiveLights() should be used instead")
946 Standard_EXPORT Standard_Boolean IfMoreLights() const;
948 //! initializes an iteration on the active Lights.
949 Standard_DEPRECATED ("Deprecated method - ActiveLights() should be used instead")
950 void InitActiveLights() { myActiveLightsIterator.Initialize (myActiveLights); }
952 //! returns true if there are more active Light(s) to return.
953 Standard_DEPRECATED ("Deprecated method - ActiveLights() should be used instead")
954 Standard_Boolean MoreActiveLights() const { return myActiveLightsIterator.More(); }
956 //! Go to the next active Light (if there is not, ActiveLight will raise an exception)
957 Standard_DEPRECATED ("Deprecated method - ActiveLights() should be used instead")
958 void NextActiveLights() { myActiveLightsIterator.Next(); }
960 Standard_DEPRECATED ("Deprecated method - ActiveLights() should be used instead")
961 const Handle(V3d_Light)& ActiveLight() const { return myActiveLightsIterator.Value(); }
965 Standard_EXPORT void ImmediateUpdate() const;
967 //! Scales camera to fit the view frame of defined width and height
968 //! keeping the aspect. For orthogonal camera the method changes scale,
969 //! for perspective adjusts Eye location about the Center point.
970 //! @param theSizeXv [in] size of viewport frame on "x" axis.
971 //! @param theSizeYv [in] size of viewport frame on "y" axis.
972 Standard_EXPORT void Scale (const Handle(Graphic3d_Camera)& theCamera, const Standard_Real theSizeXv, const Standard_Real theSizeYv) const;
974 Standard_EXPORT void Translate (const Handle(Graphic3d_Camera)& theCamera, const Standard_Real theDXv, const Standard_Real theDYv) const;
978 //! Modifies the aspect ratio of the camera when
979 //! the associated window is defined or resized.
980 Standard_EXPORT void SetRatio();
982 //! Determines the screen axes in the reference
983 //! framework of the view.
984 Standard_EXPORT static Standard_Boolean screenAxis (const gp_Dir& theVpn, const gp_Dir& theVup,
985 gp_Vec& theXaxe, gp_Vec& theYaxe, gp_Vec& theZaxe);
987 //! Transforms the Vertex V according to the matrice Matrix .
988 Standard_EXPORT static gp_XYZ TrsPoint (const Graphic3d_Vertex& V, const TColStd_Array2OfReal& Matrix);
990 //! Returns the objects number and the projection window
991 //! of the objects contained in the view.
992 Standard_EXPORT Standard_Integer MinMax (Standard_Real& Umin, Standard_Real& Vmin, Standard_Real& Umax, Standard_Real& Vmax) const;
994 //! Returns the objects number and the box encompassing
995 //! the objects contained in the view
996 Standard_EXPORT Standard_Integer MinMax (Standard_Real& Xmin, Standard_Real& Ymin, Standard_Real& Zmin, Standard_Real& Xmax, Standard_Real& Ymax, Standard_Real& Zmax) const;
998 Standard_EXPORT void Init();
1000 //! Returns a new vertex when the grid is activated.
1001 Standard_EXPORT Graphic3d_Vertex Compute (const Graphic3d_Vertex& AVertex) const;
1005 Standard_Real myOldMouseX;
1006 Standard_Real myOldMouseY;
1007 gp_Dir myCamStartOpUp;
1008 gp_Dir myCamStartOpDir;
1009 gp_Pnt myCamStartOpEye;
1010 gp_Pnt myCamStartOpCenter;
1011 Handle(Graphic3d_Camera) myDefaultCamera;
1012 Handle(Graphic3d_CView) myView;
1013 Standard_Boolean myImmediateUpdate;
1014 mutable Standard_Boolean myIsInvalidatedImmediate;
1018 V3d_Viewer* MyViewer;
1019 V3d_ListOfLight myActiveLights;
1020 gp_Dir myDefaultViewAxis;
1021 gp_Pnt myDefaultViewPoint;
1022 Handle(Aspect_Window) MyWindow;
1023 V3d_ListOfLight::Iterator myActiveLightsIterator;
1024 Standard_Integer sx;
1025 Standard_Integer sy;
1028 gp_Pnt myRotateGravity;
1029 Standard_Boolean myComputedMode;
1030 Standard_Boolean SwitchSetFront;
1031 Standard_Boolean myZRotation;
1032 Standard_Integer MyZoomAtPointX;
1033 Standard_Integer MyZoomAtPointY;
1034 Handle(V3d_Trihedron) myTrihedron;
1035 Handle(Aspect_Grid) MyGrid;
1037 TColStd_Array2OfReal MyTrsf;
1038 Handle(Graphic3d_Structure) MyGridEchoStructure;
1039 Handle(Graphic3d_Group) MyGridEchoGroup;
1040 gp_Vec myXscreenAxis;
1041 gp_Vec myYscreenAxis;
1042 gp_Vec myZscreenAxis;
1044 Graphic3d_Vertex myGravityReferencePoint;
1045 Standard_Boolean myAutoZFitIsOn;
1046 Standard_Real myAutoZFitScaleFactor;
1050 #endif // _V3d_View_HeaderFile