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0030686: Visualization, SelectMgr_ViewerSelector - sorting issues of transformation...
[occt.git] / src / SelectMgr / SelectMgr_ViewerSelector.cxx
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1// Created on: 1995-02-15
2// Created by: Roberc Coublanc
3// Copyright (c) 1995-1999 Matra Datavision
4// Copyright (c) 1999-2014 OPEN CASCADE SAS
5//
6// This file is part of Open CASCADE Technology software library.
7//
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.
13//
14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
16
17#include <SelectMgr_ViewerSelector.hxx>
18
19#include <BVH_Tree.hxx>
20#include <gp_GTrsf.hxx>
21#include <gp_Pnt.hxx>
22#include <OSD_Environment.hxx>
23#include <Precision.hxx>
24#include <SelectBasics_EntityOwner.hxx>
25#include <SelectBasics_SensitiveEntity.hxx>
26#include <SelectBasics_PickResult.hxx>
27#include <SelectMgr_EntityOwner.hxx>
28#include <SelectMgr_SortCriterion.hxx>
29#include <SelectMgr_SensitiveEntitySet.hxx>
30#include <TColStd_Array1OfInteger.hxx>
31#include <TCollection_AsciiString.hxx>
32#include <TColStd_HArray1OfInteger.hxx>
33#include <TColStd_ListOfInteger.hxx>
34
35#include <algorithm>
36
37IMPLEMENT_STANDARD_RTTIEXT(SelectMgr_ViewerSelector, Standard_Transient)
38
39namespace {
40 // Comparison operator for sorting selection results
41 class CompareResults
42 {
43 public:
44
45 CompareResults (const SelectMgr_IndexedDataMapOfOwnerCriterion& aMapOfCriterion)
46 : myMapOfCriterion (aMapOfCriterion)
47 {
48 }
49
50 Standard_Boolean operator() (Standard_Integer theLeft, Standard_Integer theRight) const
51 {
52 return myMapOfCriterion.FindFromIndex(theLeft) > myMapOfCriterion.FindFromIndex(theRight);
53 }
54
55 private:
56 void operator = (const CompareResults&);
57
58 private:
59 const SelectMgr_IndexedDataMapOfOwnerCriterion& myMapOfCriterion;
60 };
61
62 static const Graphic3d_Mat4d SelectMgr_ViewerSelector_THE_IDENTITY_MAT;
63}
64
65//=======================================================================
66// function : updatePoint3d
67// purpose :
68//=======================================================================
69void SelectMgr_ViewerSelector::updatePoint3d (SelectMgr_SortCriterion& theCriterion,
70 const SelectBasics_PickResult& thePickResult,
71 const Handle(SelectBasics_SensitiveEntity)& theEntity,
72 const gp_GTrsf& theInversedTrsf,
73 const SelectMgr_SelectingVolumeManager& theMgr) const
74{
75 if (theMgr.GetActiveSelectionType() != SelectMgr_SelectingVolumeManager::Point)
76 {
77 return;
78 }
79
80 if (thePickResult.HasPickedPoint())
81 {
82 theCriterion.Point = thePickResult.PickedPoint();
83 }
84 else if (!thePickResult.IsValid())
85 {
86 theCriterion.Point = thePickResult.PickedPoint();
87 return;
88 }
89 else
90 {
91 theCriterion.Point = theMgr.DetectedPoint (theCriterion.Depth);
92 }
93
94 gp_GTrsf anInvTrsf = theInversedTrsf;
95 if (theCriterion.Entity->HasInitLocation())
96 {
97 anInvTrsf = theCriterion.Entity->InvInitLocation() * anInvTrsf;
98 }
99 if (anInvTrsf.Form() != gp_Identity)
100 {
101 anInvTrsf.Inverted().Transforms (theCriterion.Point.ChangeCoord());
102 }
103
104 if (mySelectingVolumeMgr.Camera().IsNull())
105 {
106 theCriterion.Tolerance = theEntity->SensitivityFactor() / 33.0;
107 }
108 else if (mySelectingVolumeMgr.Camera()->IsOrthographic())
109 {
110 theCriterion.Tolerance = myCameraScale * theEntity->SensitivityFactor();
111 }
112 else
113 {
114 const Standard_Real aDistFromEye = Abs ((theCriterion.Point.XYZ() - myCameraEye.XYZ()).Dot (myCameraDir.XYZ()));
115 theCriterion.Tolerance = aDistFromEye * myCameraScale * theEntity->SensitivityFactor();
116 }
117}
118
119//==================================================
120// Function: Initialize
121// Purpose :
122//==================================================
123SelectMgr_ViewerSelector::SelectMgr_ViewerSelector():
124preferclosest(Standard_True),
125myToUpdateTolerance (Standard_True),
126myCameraScale (1.0),
127myCurRank (0),
128myIsLeftChildQueuedFirst (Standard_False),
129myEntityIdx (0)
130{
131 myEntitySetBuilder = new BVH_BinnedBuilder<Standard_Real, 3, 4> (BVH_Constants_LeafNodeSizeSingle, BVH_Constants_MaxTreeDepth, Standard_True);
132}
133
134//==================================================
135// Function: Activate
136// Purpose :
137//==================================================
138void SelectMgr_ViewerSelector::Activate (const Handle(SelectMgr_Selection)& theSelection)
139{
140 for (NCollection_Vector<Handle(SelectMgr_SensitiveEntity)>::Iterator aSelEntIter (theSelection->Entities()); aSelEntIter.More(); aSelEntIter.Next())
141 {
142 aSelEntIter.Value()->SetActiveForSelection();
143 }
144
145 if (theSelection->GetSelectionState() != SelectMgr_SOS_Activated)
146 {
147 theSelection->SetSelectionState (SelectMgr_SOS_Activated);
148
149 myTolerances.Add (theSelection->Sensitivity());
150 myToUpdateTolerance = Standard_True;
151 }
152}
153
154//==================================================
155// Function: Deactivate
156// Purpose :
157//==================================================
158void SelectMgr_ViewerSelector::Deactivate (const Handle(SelectMgr_Selection)& theSelection)
159{
160 for (NCollection_Vector<Handle(SelectMgr_SensitiveEntity)>::Iterator aSelEntIter (theSelection->Entities()); aSelEntIter.More(); aSelEntIter.Next())
161 {
162 aSelEntIter.Value()->ResetSelectionActiveStatus();
163 }
164
165 if (theSelection->GetSelectionState() == SelectMgr_SOS_Activated)
166 {
167 theSelection->SetSelectionState (SelectMgr_SOS_Deactivated);
168
169 myTolerances.Decrement (theSelection->Sensitivity());
170 myToUpdateTolerance = Standard_True;
171 }
172}
173
174//==================================================
175// Function: Clear
176// Purpose :
177//==================================================
178void SelectMgr_ViewerSelector::Clear()
179{
180 mystored.Clear();
181}
182
183//=======================================================================
184// function: isToScaleFrustum
185// purpose : Checks if the entity given requires to scale current selecting frustum
186//=======================================================================
187Standard_Boolean SelectMgr_ViewerSelector::isToScaleFrustum (const Handle(SelectBasics_SensitiveEntity)& theEntity)
188{
189 return mySelectingVolumeMgr.GetActiveSelectionType() == SelectMgr_SelectingVolumeManager::Point
190 && sensitivity (theEntity) < myTolerances.Tolerance();
191}
192
193//=======================================================================
194// function: sensitivity
195// purpose : In case if custom tolerance is set, this method will return sum of entity
196// sensitivity and custom tolerance.
197//=======================================================================
198Standard_Integer SelectMgr_ViewerSelector::sensitivity (const Handle(SelectBasics_SensitiveEntity)& theEntity) const
199{
200 return myTolerances.IsCustomTolSet() ?
201 theEntity->SensitivityFactor() + myTolerances.CustomTolerance() : theEntity->SensitivityFactor();
202}
203
204//=======================================================================
205// function: checkOverlap
206// purpose : Internal function that checks if a particular sensitive
207// entity theEntity overlaps current selecting volume precisely
208//=======================================================================
209void SelectMgr_ViewerSelector::checkOverlap (const Handle(SelectBasics_SensitiveEntity)& theEntity,
210 const gp_GTrsf& theInversedTrsf,
211 SelectMgr_SelectingVolumeManager& theMgr)
212{
213 Handle(SelectMgr_EntityOwner) anOwner (Handle(SelectMgr_EntityOwner)::DownCast (theEntity->OwnerId()));
214 Handle(SelectMgr_SelectableObject) aSelectable;
215 Standard_Boolean toRestoresViewClipEnabled = Standard_False;
216 if (!anOwner.IsNull())
217 {
218 aSelectable = anOwner->Selectable();
219 }
220 if (!aSelectable.IsNull())
221 {
222 if (!aSelectable->ClipPlanes().IsNull()
223 && aSelectable->ClipPlanes()->ToOverrideGlobal())
224 {
225 theMgr.SetViewClippingEnabled (Standard_False);
226 toRestoresViewClipEnabled = Standard_True;
227 }
228 else if (!aSelectable->TransformPersistence().IsNull())
229 {
230 if (aSelectable->TransformPersistence()->IsZoomOrRotate()
231 && !theMgr.ViewClipping().IsNull())
232 {
233 // Zoom/rotate persistence object lives in two worlds at the same time.
234 // Global clipping planes can not be trivially applied without being converted
235 // into local space of transformation persistence object.
236 // As more simple alternative - just clip entire object by its anchor point defined in the world space.
237 const Handle(Graphic3d_SequenceOfHClipPlane)& aViewPlanes = theMgr.ViewClipping();
238
239 const gp_Pnt anAnchor = aSelectable->TransformPersistence()->AnchorPoint();
240 for (Graphic3d_SequenceOfHClipPlane::Iterator aPlaneIt (*aViewPlanes); aPlaneIt.More(); aPlaneIt.Next())
241 {
242 const Handle(Graphic3d_ClipPlane)& aPlane = aPlaneIt.Value();
243 if (!aPlane->IsOn())
244 {
245 continue;
246 }
247
248 const Graphic3d_Vec4d aCheckPnt (anAnchor.X(), anAnchor.Y(), anAnchor.Z(), 1.0);
249 if (aPlane->ProbePoint (aCheckPnt) == Graphic3d_ClipState_Out)
250 {
251 return;
252 }
253 }
254 }
255
256 theMgr.SetViewClippingEnabled (Standard_False);
257 toRestoresViewClipEnabled = Standard_True;
258 }
259 }
260
261 SelectBasics_PickResult aPickResult;
262 const Standard_Boolean isMatched = theEntity->Matches(theMgr, aPickResult);
263 if (toRestoresViewClipEnabled)
264 {
265 theMgr.SetViewClippingEnabled (Standard_True);
266 }
267
268 if (!isMatched
269 || anOwner.IsNull())
270 {
271 return;
272 }
273
274 if (HasDepthClipping (anOwner)
275 && !aSelectable.IsNull()
276 && theMgr.GetActiveSelectionType() == SelectMgr_SelectingVolumeManager::Point)
277 {
278 Standard_Boolean isClipped = mySelectingVolumeMgr.IsClipped (*aSelectable->ClipPlanes(),
279 aPickResult.Depth());
280 if (isClipped)
281 return;
282 }
283
284 SelectMgr_SortCriterion aCriterion;
285 myZLayerOrderMap.Find (!aSelectable.IsNull() ? aSelectable->ZLayer() : Graphic3d_ZLayerId_Default, aCriterion.ZLayerPosition);
286 aCriterion.Entity = theEntity;
287 aCriterion.Priority = anOwner->Priority();
288 aCriterion.Depth = aPickResult.Depth();
289 aCriterion.MinDist = aPickResult.DistToGeomCenter();
290 aCriterion.ToPreferClosest = preferclosest;
291
292 if (SelectMgr_SortCriterion* aPrevCriterion = mystored.ChangeSeek (anOwner))
293 {
294 ++aPrevCriterion->NbOwnerMatches;
295 aCriterion.NbOwnerMatches = aPrevCriterion->NbOwnerMatches;
296 if (theMgr.GetActiveSelectionType() != SelectBasics_SelectingVolumeManager::Box)
297 {
298 if (aCriterion > *aPrevCriterion)
299 {
300 updatePoint3d (aCriterion, aPickResult, theEntity, theInversedTrsf, theMgr);
301 *aPrevCriterion = aCriterion;
302 }
303 }
304 }
305 else
306 {
307 aCriterion.NbOwnerMatches = 1;
308 updatePoint3d (aCriterion, aPickResult, theEntity, theInversedTrsf, theMgr);
309 mystored.Add (anOwner, aCriterion);
310 }
311}
312
313//=======================================================================
314// function: computeFrustum
315// purpose : Internal function that checks if a current selecting frustum
316// needs to be scaled and transformed for the entity and performs
317// necessary calculations
318//=======================================================================
319void SelectMgr_ViewerSelector::computeFrustum (const Handle(SelectBasics_SensitiveEntity)& theEnt,
320 const SelectMgr_SelectingVolumeManager& theMgr,
321 const gp_GTrsf& theInvTrsf,
322 SelectMgr_FrustumCache& theCachedMgrs,
323 SelectMgr_SelectingVolumeManager& theResMgr)
324{
325 Standard_Integer aScale = isToScaleFrustum (theEnt) ? sensitivity (theEnt) : 1;
326 const gp_GTrsf aTrsfMtr = theEnt->HasInitLocation() ? theEnt->InvInitLocation() * theInvTrsf : theInvTrsf;
327 const Standard_Boolean toScale = aScale != 1;
328 const Standard_Boolean toTransform = aTrsfMtr.Form() != gp_Identity;
329 if (toScale && toTransform)
330 {
331 theResMgr = theMgr.ScaleAndTransform (aScale, aTrsfMtr, NULL);
332 }
333 else if (toScale)
334 {
335 if (!theCachedMgrs.IsBound (aScale))
336 {
337 theCachedMgrs.Bind (aScale, theMgr.ScaleAndTransform (aScale, gp_Trsf(), NULL));
338 }
339 theResMgr = theCachedMgrs.Find (aScale);
340 }
341 else if (toTransform)
342 {
343 theResMgr = theMgr.ScaleAndTransform (1, aTrsfMtr, NULL);
344 }
345}
346
347//=======================================================================
348// function: traverseObject
349// purpose : Internal function that checks if there is possible overlap
350// between some entity of selectable object theObject and
351// current selecting volume
352//=======================================================================
353void SelectMgr_ViewerSelector::traverseObject (const Handle(SelectMgr_SelectableObject)& theObject,
354 const SelectMgr_SelectingVolumeManager& theMgr,
355 const Handle(Graphic3d_Camera)& theCamera,
356 const Graphic3d_Mat4d& theProjectionMat,
357 const Graphic3d_Mat4d& theWorldViewMat,
358 const Standard_Integer theViewportWidth,
359 const Standard_Integer theViewportHeight)
360{
361 Handle(SelectMgr_SensitiveEntitySet)& anEntitySet = myMapOfObjectSensitives.ChangeFind (theObject);
362 if (anEntitySet->Size() == 0)
363 {
364 return;
365 }
366
367 const opencascade::handle<BVH_Tree<Standard_Real, 3> >& aSensitivesTree = anEntitySet->BVH();
368 gp_GTrsf aInversedTrsf;
369 if (theObject->HasTransformation() || !theObject->TransformPersistence().IsNull())
370 {
371 if (theObject->TransformPersistence().IsNull())
372 {
373 aInversedTrsf = theObject->InversedTransformation();
374 }
375 else
376 {
377 gp_GTrsf aTPers;
378 Graphic3d_Mat4d aMat = theObject->TransformPersistence()->Compute (theCamera, theProjectionMat, theWorldViewMat, theViewportWidth, theViewportHeight);
379
380 aTPers.SetValue (1, 1, aMat.GetValue (0, 0));
381 aTPers.SetValue (1, 2, aMat.GetValue (0, 1));
382 aTPers.SetValue (1, 3, aMat.GetValue (0, 2));
383 aTPers.SetValue (2, 1, aMat.GetValue (1, 0));
384 aTPers.SetValue (2, 2, aMat.GetValue (1, 1));
385 aTPers.SetValue (2, 3, aMat.GetValue (1, 2));
386 aTPers.SetValue (3, 1, aMat.GetValue (2, 0));
387 aTPers.SetValue (3, 2, aMat.GetValue (2, 1));
388 aTPers.SetValue (3, 3, aMat.GetValue (2, 2));
389 aTPers.SetTranslationPart (gp_XYZ (aMat.GetValue (0, 3), aMat.GetValue (1, 3), aMat.GetValue (2, 3)));
390
391 aInversedTrsf = (aTPers * gp_GTrsf (theObject->Transformation())).Inverted();
392 }
393 }
394
395 SelectMgr_SelectingVolumeManager aMgr = aInversedTrsf.Form() != gp_Identity
396 ? theMgr.ScaleAndTransform (1, aInversedTrsf, NULL)
397 : theMgr;
398
399 SelectMgr_FrustumCache aScaledTrnsfFrustums;
400
401 Standard_Integer aNode = 0; // a root node
402 if (!aMgr.Overlaps (aSensitivesTree->MinPoint (0),
403 aSensitivesTree->MaxPoint (0)))
404 {
405 return;
406 }
407
408 const Standard_Integer aFirstStored = mystored.Extent() + 1;
409
410 Standard_Integer aStack[BVH_Constants_MaxTreeDepth];
411 Standard_Integer aHead = -1;
412 for (;;)
413 {
414 if (!aSensitivesTree->IsOuter (aNode))
415 {
416 const Standard_Integer aLeftChildIdx = aSensitivesTree->Child<0> (aNode);
417 const Standard_Integer aRightChildIdx = aSensitivesTree->Child<1> (aNode);
418 const Standard_Boolean isLeftChildIn = aMgr.Overlaps (aSensitivesTree->MinPoint (aLeftChildIdx),
419 aSensitivesTree->MaxPoint (aLeftChildIdx));
420 const Standard_Boolean isRightChildIn = aMgr.Overlaps (aSensitivesTree->MinPoint (aRightChildIdx),
421 aSensitivesTree->MaxPoint (aRightChildIdx));
422 if (isLeftChildIn
423 && isRightChildIn)
424 {
425 aNode = aLeftChildIdx;
426 ++aHead;
427 aStack[aHead] = aRightChildIdx;
428 }
429 else if (isLeftChildIn
430 || isRightChildIn)
431 {
432 aNode = isLeftChildIn ? aLeftChildIdx : aRightChildIdx;
433 }
434 else
435 {
436 if (aHead < 0)
437 {
438 break;
439 }
440
441 aNode = aStack[aHead];
442 --aHead;
443 }
444 }
445 else
446 {
447 Standard_Integer aStartIdx = aSensitivesTree->BegPrimitive (aNode);
448 Standard_Integer anEndIdx = aSensitivesTree->EndPrimitive (aNode);
449 for (Standard_Integer anIdx = aStartIdx; anIdx <= anEndIdx; ++anIdx)
450 {
451 const Handle(SelectMgr_SensitiveEntity)& aSensitive = anEntitySet->GetSensitiveById (anIdx);
452 if (aSensitive->IsActiveForSelection())
453 {
454 const Handle(SelectBasics_SensitiveEntity)& anEnt = aSensitive->BaseSensitive();
455 SelectMgr_SelectingVolumeManager aTmpMgr = aMgr;
456 computeFrustum (anEnt, theMgr, aInversedTrsf, aScaledTrnsfFrustums, aTmpMgr);
457 checkOverlap (anEnt, aInversedTrsf, aTmpMgr);
458 }
459 }
460 if (aHead < 0)
461 {
462 break;
463 }
464
465 aNode = aStack[aHead];
466 --aHead;
467 }
468 }
469
470 // in case of Box/Polyline selection - keep only Owners having all Entities detected
471 if (mySelectingVolumeMgr.IsOverlapAllowed()
472 || (theMgr.GetActiveSelectionType() != SelectBasics_SelectingVolumeManager::Box
473 && theMgr.GetActiveSelectionType() != SelectBasics_SelectingVolumeManager::Polyline))
474 {
475 return;
476 }
477
478 for (Standard_Integer aStoredIter = mystored.Extent(); aStoredIter >= aFirstStored; --aStoredIter)
479 {
480 const SelectMgr_SortCriterion& aCriterion = mystored.FindFromIndex (aStoredIter);
481 const Handle(SelectBasics_EntityOwner)& anOwner = aCriterion.Entity->OwnerId();
482 Standard_Integer aNbOwnerEntities = 0;
483 for (SelectMgr_IndexedMapOfHSensitive::Iterator aSensIter (anEntitySet->Sensitives()); aSensIter.More(); aSensIter.Next())
484 {
485 if (aSensIter.Value()->BaseSensitive()->OwnerId() == anOwner)
486 {
487 if (++aNbOwnerEntities > aCriterion.NbOwnerMatches)
488 {
489 // Remove from index map.
490 // Considering NCollection_IndexedDataMap implementation, the values for lower indexes will not be modified.
491 // Hence, just keep iterating in backward direction.
492 mystored.RemoveFromIndex (aStoredIter);
493 break;
494 }
495 }
496 }
497 }
498}
499
500//=======================================================================
501// function: TraverseSensitives
502// purpose : Traverses BVH containing all added selectable objects and
503// finds candidates for further search of overlap
504//=======================================================================
505void SelectMgr_ViewerSelector::TraverseSensitives()
506{
507 mystored.Clear();
508
509 Standard_Integer aWidth;
510 Standard_Integer aHeight;
511 mySelectingVolumeMgr.WindowSize (aWidth, aHeight);
512 mySelectableObjects.UpdateBVH (mySelectingVolumeMgr.Camera(),
513 mySelectingVolumeMgr.ProjectionMatrix(),
514 mySelectingVolumeMgr.WorldViewMatrix(),
515 mySelectingVolumeMgr.WorldViewProjState(),
516 aWidth, aHeight);
517 const Handle(Graphic3d_Camera)& aCamera = mySelectingVolumeMgr.Camera();
518 if (!aCamera.IsNull())
519 {
520 myCameraEye = aCamera->Eye().XYZ();
521 myCameraDir = aCamera->Direction().XYZ();
522 myCameraScale = aCamera->IsOrthographic()
523 ? aCamera->Scale()
524 : 2.0 * Tan (aCamera->FOVy() * M_PI / 360.0);
525 const double aPixelSize = Max (1.0 / aWidth, 1.0 / aHeight);
526 myCameraScale *= aPixelSize;
527 }
528
529 for (Standard_Integer aBVHSetIt = 0; aBVHSetIt < SelectMgr_SelectableObjectSet::BVHSubsetNb; ++aBVHSetIt)
530 {
531 SelectMgr_SelectableObjectSet::BVHSubset aBVHSubset =
532 static_cast<SelectMgr_SelectableObjectSet::BVHSubset> (aBVHSetIt);
533
534 if (mySelectableObjects.IsEmpty (aBVHSubset))
535 {
536 continue;
537 }
538
539 gp_GTrsf aTFrustum;
540
541 SelectMgr_SelectingVolumeManager aMgr (Standard_False);
542
543 // for 2D space selection transform selecting volumes to perform overap testing
544 // directly in camera's eye space omitting the camera position, which is not
545 // needed there at all
546 if (aBVHSubset == SelectMgr_SelectableObjectSet::BVHSubset_2dPersistent)
547 {
548 const Graphic3d_Mat4d& aMat = mySelectingVolumeMgr.WorldViewMatrix();
549 aTFrustum.SetValue (1, 1, aMat.GetValue (0, 0));
550 aTFrustum.SetValue (1, 2, aMat.GetValue (0, 1));
551 aTFrustum.SetValue (1, 3, aMat.GetValue (0, 2));
552 aTFrustum.SetValue (2, 1, aMat.GetValue (1, 0));
553 aTFrustum.SetValue (2, 2, aMat.GetValue (1, 1));
554 aTFrustum.SetValue (2, 3, aMat.GetValue (1, 2));
555 aTFrustum.SetValue (3, 1, aMat.GetValue (2, 0));
556 aTFrustum.SetValue (3, 2, aMat.GetValue (2, 1));
557 aTFrustum.SetValue (3, 3, aMat.GetValue (2, 2));
558 aTFrustum.SetTranslationPart (gp_XYZ (aMat.GetValue (0, 3), aMat.GetValue (1, 3), aMat.GetValue (2, 3)));
559
560 // define corresponding frustum builder parameters
561 Handle(SelectMgr_FrustumBuilder) aBuilder = new SelectMgr_FrustumBuilder();
562 aBuilder->SetProjectionMatrix (mySelectingVolumeMgr.ProjectionMatrix());
563 aBuilder->SetWorldViewMatrix (SelectMgr_ViewerSelector_THE_IDENTITY_MAT);
564 aBuilder->SetWindowSize (aWidth, aHeight);
565 aMgr = mySelectingVolumeMgr.ScaleAndTransform (1, aTFrustum, aBuilder);
566 }
567 else
568 {
569 aMgr = mySelectingVolumeMgr;
570 }
571
572 const Graphic3d_Mat4d& aProjectionMat = mySelectingVolumeMgr.ProjectionMatrix();
573 const Graphic3d_Mat4d& aWorldViewMat = aBVHSubset != SelectMgr_SelectableObjectSet::BVHSubset_2dPersistent
574 ? mySelectingVolumeMgr.WorldViewMatrix()
575 : SelectMgr_ViewerSelector_THE_IDENTITY_MAT;
576
577 const opencascade::handle<BVH_Tree<Standard_Real, 3> >& aBVHTree = mySelectableObjects.BVH (aBVHSubset);
578
579 Standard_Integer aNode = 0;
580 if (!aMgr.Overlaps (aBVHTree->MinPoint (0), aBVHTree->MaxPoint (0)))
581 {
582 continue;
583 }
584
585 Standard_Integer aStack[BVH_Constants_MaxTreeDepth];
586 Standard_Integer aHead = -1;
587 for (;;)
588 {
589 if (!aBVHTree->IsOuter (aNode))
590 {
591 const Standard_Integer aLeftChildIdx = aBVHTree->Child<0> (aNode);
592 const Standard_Integer aRightChildIdx = aBVHTree->Child<1> (aNode);
593 const Standard_Boolean isLeftChildIn =
594 aMgr.Overlaps (aBVHTree->MinPoint (aLeftChildIdx), aBVHTree->MaxPoint (aLeftChildIdx));
595 const Standard_Boolean isRightChildIn =
596 aMgr.Overlaps (aBVHTree->MinPoint (aRightChildIdx), aBVHTree->MaxPoint (aRightChildIdx));
597 if (isLeftChildIn
598 && isRightChildIn)
599 {
600 aNode = aLeftChildIdx;
601 ++aHead;
602 aStack[aHead] = aRightChildIdx;
603 }
604 else if (isLeftChildIn
605 || isRightChildIn)
606 {
607 aNode = isLeftChildIn ? aLeftChildIdx : aRightChildIdx;
608 }
609 else
610 {
611 if (aHead < 0)
612 {
613 break;
614 }
615
616 aNode = aStack[aHead];
617 --aHead;
618 }
619 }
620 else
621 {
622 Standard_Integer aStartIdx = aBVHTree->BegPrimitive (aNode);
623 Standard_Integer anEndIdx = aBVHTree->EndPrimitive (aNode);
624 for (Standard_Integer anIdx = aStartIdx; anIdx <= anEndIdx; ++anIdx)
625 {
626 const Handle(SelectMgr_SelectableObject)& aSelectableObject =
627 mySelectableObjects.GetObjectById (aBVHSubset, anIdx);
628
629 traverseObject (aSelectableObject, aMgr, aCamera, aProjectionMat, aWorldViewMat, aWidth, aHeight);
630 }
631 if (aHead < 0)
632 {
633 break;
634 }
635
636 aNode = aStack[aHead];
637 --aHead;
638 }
639 }
640 }
641
642 SortResult();
643}
644
645//==================================================
646// Function: ClearPicked
647// Purpose :
648//==================================================
649void SelectMgr_ViewerSelector::ClearPicked()
650{
651 mystored.Clear();
652}
653
654//==================================================
655// Function: Picked
656// Purpose :
657//==================================================
658Handle(SelectMgr_EntityOwner) SelectMgr_ViewerSelector
659::Picked() const
660{
661 Standard_Integer RankInMap = myIndexes->Value (myCurRank);
662 const Handle(SelectBasics_EntityOwner)& toto = mystored.FindKey(RankInMap);
663 Handle(SelectMgr_EntityOwner) Ownr = Handle(SelectMgr_EntityOwner)::DownCast (toto);
664 return Ownr;
665}
666
667//=======================================================================
668//function : Picked
669//purpose :
670//=======================================================================
671Handle(SelectMgr_EntityOwner) SelectMgr_ViewerSelector::Picked (const Standard_Integer theRank) const
672{
673 Handle(SelectMgr_EntityOwner) anOwner;
674 if (theRank < 1 || theRank > NbPicked())
675 {
676 return anOwner;
677 }
678
679 const Standard_Integer anOwnerIdx = myIndexes->Value (theRank);
680 const Handle(SelectBasics_EntityOwner)& aStoredOwner = mystored.FindKey (anOwnerIdx);
681 anOwner = Handle(SelectMgr_EntityOwner)::DownCast (aStoredOwner);
682 return anOwner;
683}
684
685//=======================================================================
686//function : PickedData
687//purpose :
688//=======================================================================
689const SelectMgr_SortCriterion& SelectMgr_ViewerSelector::PickedData(const Standard_Integer theRank) const
690{
691 Standard_OutOfRange_Raise_if (theRank < 1 || theRank > NbPicked(), "SelectMgr_ViewerSelector::PickedData() out of range index");
692 const Standard_Integer anOwnerIdx = myIndexes->Value (theRank);
693 return mystored.FindFromIndex (anOwnerIdx);
694}
695
696//===================================================
697//
698// INTERNAL METHODS ....
699//
700//==================================================
701
702//==================================================
703// Function: SetEntitySetBuilder
704// Purpose :
705//==================================================
706void SelectMgr_ViewerSelector::SetEntitySetBuilder (const Handle(Select3D_BVHBuilder3d)& theBuilder)
707{
708 myEntitySetBuilder = theBuilder;
709 for (SelectMgr_MapOfObjectSensitives::Iterator aSetIter (myMapOfObjectSensitives); aSetIter.More(); aSetIter.Next())
710 {
711 aSetIter.ChangeValue()->SetBuilder (myEntitySetBuilder);
712 }
713}
714
715//==================================================
716// Function: Contains
717// Purpose :
718//==================================================
719Standard_Boolean SelectMgr_ViewerSelector::Contains (const Handle(SelectMgr_SelectableObject)& theObject) const
720{
721 return mySelectableObjects.Contains (theObject);
722}
723
724//==================================================
725// Function: ActiveModes
726// Purpose : return all the modes with a given state for an object
727//==================================================
728Standard_Boolean SelectMgr_ViewerSelector::Modes (const Handle(SelectMgr_SelectableObject)& theSelectableObject,
729 TColStd_ListOfInteger& theModeList,
730 const SelectMgr_StateOfSelection theWantedState) const
731{
732 Standard_Boolean hasActivatedStates = Contains (theSelectableObject);
733 for (SelectMgr_SequenceOfSelection::Iterator aSelIter (theSelectableObject->Selections()); aSelIter.More(); aSelIter.Next())
734 {
735 if (theWantedState == SelectMgr_SOS_Any)
736 {
737 theModeList.Append (aSelIter.Value()->Mode());
738 }
739 else if (theWantedState == aSelIter.Value()->GetSelectionState())
740 {
741 theModeList.Append (aSelIter.Value()->Mode());
742 }
743 }
744
745 return hasActivatedStates;
746}
747
748//==================================================
749// Function: IsActive
750// Purpose :
751//==================================================
752Standard_Boolean SelectMgr_ViewerSelector::IsActive (const Handle(SelectMgr_SelectableObject)& theSelectableObject,
753 const Standard_Integer theMode) const
754{
755 if (!Contains (theSelectableObject))
756 return Standard_False;
757
758 const Handle(SelectMgr_Selection)& aSel = theSelectableObject->Selection (theMode);
759 return !aSel.IsNull()
760 && aSel->GetSelectionState() == SelectMgr_SOS_Activated;
761}
762
763//==================================================
764// Function: IsInside
765// Purpose :
766//==================================================
767Standard_Boolean SelectMgr_ViewerSelector::IsInside (const Handle(SelectMgr_SelectableObject)& theSelectableObject,
768 const Standard_Integer theMode) const
769{
770 if (!Contains (theSelectableObject))
771 return Standard_False;
772
773 const Handle(SelectMgr_Selection)& aSel = theSelectableObject->Selection (theMode);
774 return !aSel.IsNull()
775 && aSel->GetSelectionState() != SelectMgr_SOS_Unknown;
776}
777
778
779//=======================================================================
780//function : Status
781//purpose :
782//=======================================================================
783
784SelectMgr_StateOfSelection SelectMgr_ViewerSelector::Status (const Handle(SelectMgr_Selection)& theSelection) const
785{
786 return theSelection->GetSelectionState();
787}
788
789//==================================================
790// Function: Status
791// Purpose : gives Information about selectors
792//==================================================
793
794TCollection_AsciiString SelectMgr_ViewerSelector::Status (const Handle(SelectMgr_SelectableObject)& theSelectableObject) const
795{
796 TCollection_AsciiString aStatus ("Status Object :\n\t");
797 for (SelectMgr_SequenceOfSelection::Iterator aSelIter (theSelectableObject->Selections()); aSelIter.More(); aSelIter.Next())
798 {
799 if (aSelIter.Value()->GetSelectionState() != SelectMgr_SOS_Unknown)
800 {
801 aStatus = aStatus + "Mode " + TCollection_AsciiString (aSelIter.Value()->Mode()) + " present - "
802 + (aSelIter.Value()->GetSelectionState() == SelectMgr_SOS_Activated ? " Active \n\t" : " Inactive \n\t");
803 }
804 }
805
806 if (!Contains (theSelectableObject))
807 {
808 aStatus = aStatus + "Not Present in the selector\n\n";
809 }
810
811 return aStatus;
812}
813
814//=======================================================================
815//function : SortResult
816//purpose : there is a certain number of entities ranged by criteria
817// (depth, size, priority, mouse distance from borders or
818// CDG of the detected primitive. Parsing :
819// maximum priorities .
820// then a reasonable compromise between depth and distance...
821// finally the ranges are stored in myindexes depending on the parsing.
822// so, it is possible to only read
823//=======================================================================
824void SelectMgr_ViewerSelector::SortResult()
825{
826 if(mystored.IsEmpty()) return;
827
828 const Standard_Integer anExtent = mystored.Extent();
829 if(myIndexes.IsNull() || anExtent != myIndexes->Length())
830 myIndexes = new TColStd_HArray1OfInteger (1, anExtent);
831
832 TColStd_Array1OfInteger& anIndexArray = myIndexes->ChangeArray1();
833 for (Standard_Integer anIndexIter = 1; anIndexIter <= anExtent; ++anIndexIter)
834 {
835 anIndexArray.SetValue (anIndexIter, anIndexIter);
836 }
837 std::sort (anIndexArray.begin(), anIndexArray.end(), CompareResults (mystored));
838}
839
840//=======================================================================
841//function : HasDepthClipping
842//purpose : Stub
843//=======================================================================
844Standard_Boolean SelectMgr_ViewerSelector::HasDepthClipping (const Handle(SelectMgr_EntityOwner)& /*theOwner*/) const
845{
846 return Standard_False;
847}
848
849//=======================================================================
850// function : AddSelectableObject
851// purpose : Adds new object to the map of selectable objects
852//=======================================================================
853void SelectMgr_ViewerSelector::AddSelectableObject (const Handle(SelectMgr_SelectableObject)& theObject)
854{
855 if (!myMapOfObjectSensitives.IsBound (theObject))
856 {
857 mySelectableObjects.Append (theObject);
858 Handle(SelectMgr_SensitiveEntitySet) anEntitySet = new SelectMgr_SensitiveEntitySet (myEntitySetBuilder);
859 myMapOfObjectSensitives.Bind (theObject, anEntitySet);
860 }
861}
862
863//=======================================================================
864// function : AddSelectionToObject
865// purpose : Adds new selection to the object and builds its BVH tree
866//=======================================================================
867void SelectMgr_ViewerSelector::AddSelectionToObject (const Handle(SelectMgr_SelectableObject)& theObject,
868 const Handle(SelectMgr_Selection)& theSelection)
869{
870 if (Handle(SelectMgr_SensitiveEntitySet)* anEntitySet = myMapOfObjectSensitives.ChangeSeek (theObject))
871 {
872 (*anEntitySet)->Append (theSelection);
873 (*anEntitySet)->BVH();
874 }
875 else
876 {
877 AddSelectableObject (theObject);
878 AddSelectionToObject (theObject, theSelection);
879 }
880}
881
882//=======================================================================
883// function : MoveSelectableObject
884// purpose :
885//=======================================================================
886void SelectMgr_ViewerSelector::MoveSelectableObject (const Handle(SelectMgr_SelectableObject)& theObject)
887{
888 mySelectableObjects.ChangeSubset (theObject);
889}
890
891//=======================================================================
892// function : RemoveSelectableObject
893// purpose : Removes selectable object from map of selectable ones
894//=======================================================================
895void SelectMgr_ViewerSelector::RemoveSelectableObject (const Handle(SelectMgr_SelectableObject)& theObject)
896{
897 Handle(SelectMgr_SelectableObject) anObj = theObject;
898 if (myMapOfObjectSensitives.UnBind (theObject))
899 {
900 mySelectableObjects.Remove (theObject);
901 }
902}
903
904//=======================================================================
905// function : RemoveSelectionOfObject
906// purpose : Removes selection of the object and marks its BVH tree
907// for rebuild
908//=======================================================================
909void SelectMgr_ViewerSelector::RemoveSelectionOfObject (const Handle(SelectMgr_SelectableObject)& theObject,
910 const Handle(SelectMgr_Selection)& theSelection)
911{
912 if (Handle(SelectMgr_SensitiveEntitySet)* anEntitySet = myMapOfObjectSensitives.ChangeSeek (theObject))
913 {
914 (*anEntitySet)->Remove (theSelection);
915 }
916}
917
918//=======================================================================
919// function : RebuildObjectsTree
920// purpose : Marks BVH of selectable objects for rebuild
921//=======================================================================
922void SelectMgr_ViewerSelector::RebuildObjectsTree (const Standard_Boolean theIsForce)
923{
924 mySelectableObjects.MarkDirty();
925
926 if (theIsForce)
927 {
928 Standard_Integer aViewportWidth, aViewportHeight;
929 mySelectingVolumeMgr.WindowSize (aViewportWidth, aViewportHeight);
930
931 Standard_Integer aWidth;
932 Standard_Integer aHeight;
933 mySelectingVolumeMgr.WindowSize (aWidth, aHeight);
934 mySelectableObjects.UpdateBVH (mySelectingVolumeMgr.Camera(),
935 mySelectingVolumeMgr.ProjectionMatrix(),
936 mySelectingVolumeMgr.WorldViewMatrix(),
937 mySelectingVolumeMgr.WorldViewProjState(),
938 aWidth, aHeight);
939 }
940}
941
942//=======================================================================
943// function : RebuildSensitivesTree
944// purpose : Marks BVH of sensitive entities of particular selectable
945// object for rebuild
946//=======================================================================
947void SelectMgr_ViewerSelector::RebuildSensitivesTree (const Handle(SelectMgr_SelectableObject)& theObject,
948 const Standard_Boolean theIsForce)
949{
950 if (!Contains (theObject))
951 return;
952
953 Handle(SelectMgr_SensitiveEntitySet)& anEntitySet = myMapOfObjectSensitives.ChangeFind (theObject);
954 anEntitySet->MarkDirty();
955
956 if (theIsForce)
957 {
958 anEntitySet->BVH();
959 }
960}
961
962//=======================================================================
963// function : resetSelectionActivationStatus
964// purpose : Marks all added sensitive entities of all objects as
965// non-selectable
966//=======================================================================
967void SelectMgr_ViewerSelector::ResetSelectionActivationStatus()
968{
969 for (SelectMgr_MapOfObjectSensitivesIterator aSensitivesIter (myMapOfObjectSensitives); aSensitivesIter.More(); aSensitivesIter.Next())
970 {
971 Handle(SelectMgr_SensitiveEntitySet)& anEntitySet = aSensitivesIter.ChangeValue();
972 const Standard_Integer anEntitiesNb = anEntitySet->Size();
973 for (Standard_Integer anIdx = 0; anIdx < anEntitiesNb; ++anIdx)
974 {
975 anEntitySet->GetSensitiveById (anIdx)->ResetSelectionActiveStatus();
976 }
977 }
978}
979
980//=======================================================================
981// function : DetectedEntity
982// purpose : Returns sensitive entity that was detected during the
983// previous run of selection algorithm
984//=======================================================================
985const Handle(SelectBasics_SensitiveEntity)& SelectMgr_ViewerSelector::DetectedEntity() const
986{
987 const Standard_Integer aRankInMap = myIndexes->Value(myCurRank);
988 return mystored.FindFromIndex (aRankInMap).Entity;
989}
990
991//=======================================================================
992// function : ActiveOwners
993// purpose : Returns the list of active entity owners
994//=======================================================================
995void SelectMgr_ViewerSelector::ActiveOwners (NCollection_List<Handle(SelectBasics_EntityOwner)>& theOwners) const
996{
997 for (SelectMgr_MapOfObjectSensitivesIterator anIter (myMapOfObjectSensitives); anIter.More(); anIter.Next())
998 {
999 const Handle(SelectMgr_SensitiveEntitySet)& anEntitySet = anIter.Value();
1000 const Standard_Integer anEntitiesNb = anEntitySet->Size();
1001 for (Standard_Integer anIdx = 0; anIdx < anEntitiesNb; ++anIdx)
1002 {
1003 const Handle(SelectMgr_SensitiveEntity)& aSensitive = anEntitySet->GetSensitiveById (anIdx);
1004 if (aSensitive->IsActiveForSelection())
1005 {
1006 theOwners.Append (aSensitive->BaseSensitive()->OwnerId());
1007 }
1008 }
1009 }
1010}
1011
1012//=======================================================================
1013//function : AllowOverlapDetection
1014//purpose : Sets the detection type: if theIsToAllow is false,
1015// only fully included sensitives will be detected, otherwise
1016// the algorithm will mark both included and overlapped entities
1017// as matched
1018//=======================================================================
1019void SelectMgr_ViewerSelector::AllowOverlapDetection (const Standard_Boolean theIsToAllow)
1020{
1021 mySelectingVolumeMgr.AllowOverlapDetection (theIsToAllow);
1022}
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