1 // Copyright (C) 2014-2020 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include "GeomAlgoAPI_ShapeTools.h"
22 #include "GeomAlgoAPI_SketchBuilder.h"
24 #include <GeomAPI_Ax1.h>
25 #include <GeomAPI_Edge.h>
26 #include <GeomAPI_Dir.h>
27 #include <GeomAPI_Face.h>
28 #include <GeomAPI_Pln.h>
29 #include <GeomAPI_Pnt.h>
30 #include <GeomAPI_Wire.h>
32 #include <Bnd_Box.hxx>
34 #include <BRep_Tool.hxx>
35 #include <BRep_Builder.hxx>
36 #include <BRepAlgo.hxx>
37 #include <BRepAlgo_FaceRestrictor.hxx>
38 #include <BRepAdaptor_Curve.hxx>
39 #include <BRepBndLib.hxx>
40 #include <BRepBuilderAPI_FindPlane.hxx>
41 #include <BRepBuilderAPI_MakeEdge.hxx>
42 #include <BRepBuilderAPI_MakeFace.hxx>
43 #include <BRepBuilderAPI_MakeVertex.hxx>
44 #include <BRepCheck_Analyzer.hxx>
45 #include <BRepExtrema_DistShapeShape.hxx>
46 #include <BRepExtrema_ExtCF.hxx>
47 #include <BRepGProp.hxx>
48 #include <BRepTools.hxx>
49 #include <BRepTools_WireExplorer.hxx>
50 #include <BRepTopAdaptor_FClass2d.hxx>
51 #include <BRepClass_FaceClassifier.hxx>
52 #include <BRepLib_CheckCurveOnSurface.hxx>
53 #include <BRepLProp.hxx>
55 #include <BOPAlgo_Builder.hxx>
57 #include <Geom2d_Curve.hxx>
58 #include <Geom2d_Curve.hxx>
60 #include <Geom_CylindricalSurface.hxx>
61 #include <Geom_Line.hxx>
62 #include <Geom_Plane.hxx>
63 #include <Geom_RectangularTrimmedSurface.hxx>
65 #include <GeomAPI_ProjectPointOnCurve.hxx>
66 #include <GeomAPI_ShapeIterator.h>
68 #include <GeomLib_IsPlanarSurface.hxx>
69 #include <GeomLib_Tool.hxx>
70 #include <GeomAPI_IntCS.hxx>
73 #include <GProp_GProps.hxx>
75 #include <IntAna_IntConicQuad.hxx>
76 #include <IntAna_Quadric.hxx>
78 #include <ShapeAnalysis.hxx>
79 #include <ShapeAnalysis_Surface.hxx>
82 #include <TopoDS_Edge.hxx>
83 #include <TopoDS_Face.hxx>
84 #include <TopoDS_Shape.hxx>
85 #include <TopoDS_Shell.hxx>
86 #include <TopoDS_Vertex.hxx>
87 #include <TopoDS_Builder.hxx>
90 #include <TopExp_Explorer.hxx>
92 #include <TopTools_ListIteratorOfListOfShape.hxx>
94 #include <NCollection_Vector.hxx>
96 //==================================================================================================
97 static GProp_GProps props(const TopoDS_Shape& theShape)
101 if (theShape.ShapeType() == TopAbs_EDGE || theShape.ShapeType() == TopAbs_WIRE)
103 BRepGProp::LinearProperties(theShape, aGProps);
105 else if (theShape.ShapeType() == TopAbs_FACE || theShape.ShapeType() == TopAbs_SHELL)
107 const Standard_Real anEps = 1.e-6;
108 BRepGProp::SurfaceProperties(theShape, aGProps, anEps);
110 else if (theShape.ShapeType() == TopAbs_SOLID || theShape.ShapeType() == TopAbs_COMPSOLID)
112 BRepGProp::VolumeProperties(theShape, aGProps);
114 else if (theShape.ShapeType() == TopAbs_COMPOUND)
116 for (TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next())
118 aGProps.Add(props(anIt.Value()));
125 //==================================================================================================
126 double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theShape)
128 if(!theShape.get()) {
131 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
132 if(aShape.IsNull()) {
135 const Standard_Real anEps = 1.e-6;
136 TopExp_Explorer anExp(aShape, TopAbs_SOLID);
137 if (anExp.More()) { // return volume if there is at least one solid
138 double aVolume = 0.0;
139 for (; anExp.More(); anExp.Next()) {
140 GProp_GProps aGProps;
141 BRepGProp::VolumeProperties(anExp.Current(), aGProps, anEps);
142 aVolume += aGProps.Mass();
146 // return surfaces area
147 GProp_GProps aGProps;
148 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
149 return aGProps.Mass();
152 //==================================================================================================
153 double GeomAlgoAPI_ShapeTools::area (const std::shared_ptr<GeomAPI_Shape> theShape)
155 GProp_GProps aGProps;
156 if(!theShape.get()) {
159 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
160 if(aShape.IsNull()) {
163 const Standard_Real anEps = 1.e-6;
165 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
166 return aGProps.Mass();
169 //==================================================================================================
170 std::shared_ptr<GeomAPI_Pnt>
171 GeomAlgoAPI_ShapeTools::centreOfMass(const std::shared_ptr<GeomAPI_Shape> theShape)
173 GProp_GProps aGProps;
175 return std::shared_ptr<GeomAPI_Pnt>();
177 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
178 if(aShape.IsNull()) {
179 return std::shared_ptr<GeomAPI_Pnt>();
182 if(aShape.ShapeType() == TopAbs_VERTEX) {
183 aCentre = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
185 aGProps = props(aShape);
186 aCentre = aGProps.CentreOfMass();
189 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aCentre.X(), aCentre.Y(), aCentre.Z()));
192 //==================================================================================================
193 double GeomAlgoAPI_ShapeTools::radius(const std::shared_ptr<GeomAPI_Face>& theCylinder)
195 double aRadius = -1.0;
196 if (theCylinder->isCylindrical()) {
197 const TopoDS_Shape& aShape = theCylinder->impl<TopoDS_Shape>();
198 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(TopoDS::Face(aShape));
199 Handle(Geom_CylindricalSurface) aCyl = Handle(Geom_CylindricalSurface)::DownCast(aSurf);
201 aRadius = aCyl->Radius();
206 //==================================================================================================
207 double GeomAlgoAPI_ShapeTools::minimalDistance(const GeomShapePtr& theShape1,
208 const GeomShapePtr& theShape2)
210 const TopoDS_Shape& aShape1 = theShape1->impl<TopoDS_Shape>();
211 const TopoDS_Shape& aShape2 = theShape2->impl<TopoDS_Shape>();
213 BRepExtrema_DistShapeShape aDist(aShape1, aShape2);
215 return aDist.IsDone() ? aDist.Value() : Precision::Infinite();
218 //==================================================================================================
219 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
220 const std::shared_ptr<GeomAPI_Shape> theCompound,
221 const GeomAPI_Shape::ShapeType theType,
222 ListOfShape& theResuts)
225 ListOfShape aResCombinedShapes;
226 ListOfShape aResFreeShapes;
228 GeomShapePtr aResult = theCompound;
230 if(!theCompound.get()) {
234 if(theType != GeomAPI_Shape::SHELL && theType != GeomAPI_Shape::COMPSOLID) {
238 TopAbs_ShapeEnum aTS = TopAbs_EDGE;
239 TopAbs_ShapeEnum aTA = TopAbs_FACE;
240 if(theType == GeomAPI_Shape::COMPSOLID) {
245 // map from the resulting shapes to minimal index of the used shape from theCompound list
246 std::map<GeomShapePtr, int> anInputOrder;
247 // map from ancestors-shapes to the index of shapes in theCompound
248 NCollection_DataMap<TopoDS_Shape, int> anAncestorsOrder;
252 const TopoDS_Shape& aShapesComp = theCompound->impl<TopoDS_Shape>();
253 for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next(), anOrder++) {
254 const TopoDS_Shape& aShape = anIter.Value();
255 if(aShape.ShapeType() > aTA) {
256 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
257 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
258 aResFreeShapes.push_back(aGeomShape);
259 anInputOrder[aGeomShape] = anOrder;
261 for(TopExp_Explorer anExp(aShape, aTA); anExp.More(); anExp.Next()) {
262 anAncestorsOrder.Bind(anExp.Current(), anOrder);
267 // Map sub-shapes and shapes.
268 TopTools_IndexedDataMapOfShapeListOfShape aMapSA;
269 TopExp::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
270 if(aMapSA.IsEmpty()) {
275 // Get all shapes with common sub-shapes and free shapes.
276 NCollection_Map<TopoDS_Shape> aFreeShapes;
277 NCollection_Vector<NCollection_Map<TopoDS_Shape>> aShapesWithCommonSubshapes;
278 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
279 anIter(aMapSA); anIter.More(); anIter.Next()) {
280 TopTools_ListOfShape& aListOfShape = anIter.ChangeValue();
281 if(aListOfShape.IsEmpty()) {
284 else if(aListOfShape.Size() == 1) {
285 const TopoDS_Shape& aF = aListOfShape.First();
287 aListOfShape.Clear();
289 NCollection_List<TopoDS_Shape> aTempList;
290 NCollection_Map<TopoDS_Shape> aTempMap;
291 for (TopTools_ListOfShape::Iterator aListIt(aListOfShape); aListIt.More(); aListIt.Next()) {
292 aTempList.Append(aListIt.Value());
293 aTempMap.Add(aListIt.Value());
294 aFreeShapes.Remove(aListIt.Value());
296 aListOfShape.Clear();
297 for(NCollection_List<TopoDS_Shape>::Iterator
298 aTempIter(aTempList); aTempIter.More(); aTempIter.Next()) {
299 const TopoDS_Shape& aTempShape = aTempIter.Value();
300 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
301 anIter2(aMapSA); anIter2.More(); anIter2.Next()) {
302 TopTools_ListOfShape& aTempListOfShape = anIter2.ChangeValue();
303 if(aTempListOfShape.IsEmpty()) {
305 } else if(aTempListOfShape.Size() == 1 && aTempListOfShape.First() == aTempShape) {
306 aTempListOfShape.Clear();
307 } else if(aTempListOfShape.Size() > 1) {
308 TopTools_ListOfShape::Iterator anIt1(aTempListOfShape);
309 for (; anIt1.More(); anIt1.Next()) {
310 if (anIt1.Value() == aTempShape) {
311 TopTools_ListOfShape::Iterator anIt2(aTempListOfShape);
312 for (; anIt2.More(); anIt2.Next())
314 if (anIt2.Value() != anIt1.Value()) {
315 if (aTempMap.Add(anIt2.Value())) {
316 aTempList.Append(anIt2.Value());
317 aFreeShapes.Remove(anIt2.Value());
321 aTempListOfShape.Clear();
328 aShapesWithCommonSubshapes.Append(aTempMap);
332 // Combine shapes with common sub-shapes.
333 for(NCollection_Vector<NCollection_Map<TopoDS_Shape>>::Iterator
334 anIter(aShapesWithCommonSubshapes); anIter.More(); anIter.Next()) {
336 TopoDS_CompSolid aCSolid;
337 TopoDS_Builder aBuilder;
340 GeomAPI_Shape::COMPSOLID ? aBuilder.MakeCompSolid(aCSolid) : aBuilder.MakeShell(aShell);
341 NCollection_Map<TopoDS_Shape>& aShapesMap = anIter.ChangeValue();
342 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
343 const TopoDS_Shape& aShape = anExp.Current();
344 if(aShapesMap.Contains(aShape)) {
346 GeomAPI_Shape::COMPSOLID ? aBuilder.Add(aCSolid, aShape) : aBuilder.Add(aShell, aShape);
347 aShapesMap.Remove(aShape);
348 int aThisOrder = anAncestorsOrder.Find(aShape);
349 if (anOrder == -1 || aThisOrder < anOrder)
350 anOrder = aThisOrder; // take the minimum order position
353 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
354 TopoDS_Shape* aSh = theType == GeomAPI_Shape::COMPSOLID ? new TopoDS_Shape(aCSolid) :
355 new TopoDS_Shape(aShell);
356 aGeomShape->setImpl<TopoDS_Shape>(aSh);
357 aResCombinedShapes.push_back(aGeomShape);
358 anInputOrder[aGeomShape] = anOrder;
361 // Adding free shapes.
362 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
363 const TopoDS_Shape& aShape = anExp.Current();
364 if(aFreeShapes.Contains(aShape)) {
365 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
366 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
367 aResFreeShapes.push_back(aGeomShape);
368 anInputOrder[aGeomShape] = anAncestorsOrder.Find(aShape);
372 if(aResCombinedShapes.size() == 1 && aResFreeShapes.size() == 0) {
373 aResult = aResCombinedShapes.front();
374 theResuts.push_back(aResult);
375 } else if(aResCombinedShapes.size() == 0 && aResFreeShapes.size() == 1) {
376 aResult = aResFreeShapes.front();
377 theResuts.push_back(aResult);
379 TopoDS_Compound aResultComp;
380 TopoDS_Builder aBuilder;
381 aBuilder.MakeCompound(aResultComp);
382 // put to result compound and result list in accordance to the order numbers
383 std::map<GeomShapePtr, int>::iterator anInputIter = anInputOrder.begin();
384 std::map<int, GeomShapePtr> aNums;
385 for(; anInputIter != anInputOrder.end(); anInputIter++)
386 aNums[anInputIter->second] = anInputIter->first;
387 std::map<int, GeomShapePtr>::iterator aNumsIter = aNums.begin();
388 for(; aNumsIter != aNums.end(); aNumsIter++) {
389 aBuilder.Add(aResultComp, (aNumsIter->second)->impl<TopoDS_Shape>());
390 theResuts.push_back(aNumsIter->second);
392 aResult->setImpl(new TopoDS_Shape(aResultComp));
398 //==================================================================================================
399 static void addSimpleShapeToList(const TopoDS_Shape& theShape,
400 NCollection_List<TopoDS_Shape>& theList)
402 if(theShape.IsNull()) {
406 if(theShape.ShapeType() == TopAbs_COMPOUND) {
407 for(TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next()) {
408 addSimpleShapeToList(anIt.Value(), theList);
411 theList.Append(theShape);
415 //==================================================================================================
416 static TopoDS_Compound makeCompound(const NCollection_List<TopoDS_Shape> theShapes)
418 TopoDS_Compound aCompound;
420 BRep_Builder aBuilder;
421 aBuilder.MakeCompound(aCompound);
423 for(NCollection_List<TopoDS_Shape>::Iterator anIt(theShapes); anIt.More(); anIt.Next()) {
424 aBuilder.Add(aCompound, anIt.Value());
430 //==================================================================================================
431 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
432 const std::shared_ptr<GeomAPI_Shape> theCompound)
434 GeomShapePtr aResult = theCompound;
436 if (!theCompound.get()) {
440 TopoDS_Shape anInShape = aResult->impl<TopoDS_Shape>();
441 NCollection_List<TopoDS_Shape> anUngroupedShapes, aStillUngroupedShapes;
442 addSimpleShapeToList(anInShape, anUngroupedShapes);
444 // Iterate over all shapes and find shapes with shared vertices.
445 TopTools_ListOfShape allVertices;
446 TopTools_DataMapOfShapeListOfShape aVertexShapesMap;
447 for (NCollection_List<TopoDS_Shape>::Iterator aShapesIt(anUngroupedShapes);
450 const TopoDS_Shape& aShape = aShapesIt.Value();
451 for (TopExp_Explorer aShapeExp(aShape, TopAbs_VERTEX);
454 const TopoDS_Shape& aVertex = aShapeExp.Current();
455 if (!aVertexShapesMap.IsBound(aVertex)) {
456 NCollection_List<TopoDS_Shape> aList;
457 aList.Append(aShape);
458 allVertices.Append(aVertex);
459 aVertexShapesMap.Bind(aVertex, aList);
462 if (!aVertexShapesMap.ChangeFind(aVertex).Contains(aShape)) {
463 aVertexShapesMap.ChangeFind(aVertex).Append(aShape);
469 // Iterate over the map and group shapes.
470 NCollection_Vector<TopTools_MapOfShape> aGroups; // groups of shapes connected by vertices
471 while (!allVertices.IsEmpty()) {
472 // Get first group of shapes in map, and then unbind it.
473 const TopoDS_Shape& aKey = allVertices.First();
474 TopTools_ListOfShape aConnectedShapes = aVertexShapesMap.Find(aKey);
475 aVertexShapesMap.UnBind(aKey);
476 allVertices.Remove(aKey);
477 // Iterate over shapes in this group and add to it shapes from groups in map.
478 for (TopTools_ListOfShape::Iterator aConnectedIt(aConnectedShapes);
479 aConnectedIt.More(); aConnectedIt.Next()) {
480 const TopoDS_Shape& aConnected = aConnectedIt.Value();
481 TopTools_ListOfShape aKeysToUnbind;
482 for (TopTools_ListOfShape::Iterator aKeysIt(allVertices);
485 const TopTools_ListOfShape& anOtherConnected = aVertexShapesMap(aKeysIt.Value());
486 if (!anOtherConnected.Contains(aConnected)) {
487 // Other connected group does not contain shape from our connected group
490 // Other is connected to our, so add them to our connected
491 for (TopTools_ListOfShape::Iterator anOtherIt(anOtherConnected);
494 const TopoDS_Shape& aShape = anOtherIt.Value();
495 if (!aConnectedShapes.Contains(aShape)) {
496 aConnectedShapes.Append(aShape);
499 // Save key to unbind from this map.
500 aKeysToUnbind.Append(aKeysIt.Value());
502 // Unbind groups from map that we added to our group.
503 for (TopTools_ListOfShape::Iterator aKeysIt(aKeysToUnbind);
506 aVertexShapesMap.UnBind(aKeysIt.Value());
507 allVertices.Remove(aKeysIt.Value());
510 // Sort shapes from the most complicated to the simplest ones
511 TopTools_MapOfShape aSortedGroup;
512 for (int aST = TopAbs_COMPOUND; aST <= TopAbs_SHAPE; ++aST) {
513 TopTools_ListOfShape::Iterator anIt(aConnectedShapes);
514 while (anIt.More()) {
515 if (anIt.Value().ShapeType() == aST) {
516 aSortedGroup.Add(anIt.Value());
517 aConnectedShapes.Remove(anIt);
524 aGroups.Append(aSortedGroup);
527 TopoDS_Compound aCompound;
528 BRep_Builder aBuilder;
529 aBuilder.MakeCompound(aCompound);
531 for (NCollection_Vector<TopTools_MapOfShape>::Iterator anIt(aGroups); anIt.More(); anIt.Next()) {
532 const TopTools_MapOfShape& aGroup = anIt.ChangeValue();
533 GeomShapePtr aGeomShape(new GeomAPI_Shape());
534 if(aGroup.Size() == 1) {
535 TopTools_MapOfShape::Iterator aOneShapeIter(aGroup);
536 aGeomShape->setImpl(new TopoDS_Shape(aOneShapeIter.Value()));
538 // make sub-shapes in the group have order same as in original shape
539 TopTools_ListOfShape anOrderedGoup;
540 NCollection_List<TopoDS_Shape>::Iterator anUngrouped(anUngroupedShapes);
541 for (; anUngrouped.More(); anUngrouped.Next()) {
542 if (aGroup.Contains(anUngrouped.Value()))
543 anOrderedGoup.Append(anUngrouped.Value());
545 aGeomShape->setImpl(new TopoDS_Shape(makeCompound(anOrderedGoup)));
546 aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
547 GeomAPI_Shape::COMPSOLID,
550 aBuilder.Add(aCompound, aGeomShape->impl<TopoDS_Shape>());
553 if(!aCompound.IsNull()) {
554 aResult->setImpl(new TopoDS_Shape(aCompound));
560 //==================================================================================================
561 bool GeomAlgoAPI_ShapeTools::hasSharedTopology(const ListOfShape& theShapes,
562 const GeomAPI_Shape::ShapeType theShapeType)
564 TopTools_IndexedMapOfShape aSubs;
565 for (ListOfShape::const_iterator anIt = theShapes.begin(); anIt != theShapes.end(); ++anIt) {
566 TopTools_IndexedMapOfShape aCurSubs;
567 TopExp::MapShapes((*anIt)->impl<TopoDS_Shape>(), (TopAbs_ShapeEnum)theShapeType, aCurSubs);
568 for (TopTools_IndexedMapOfShape::Iterator aSubIt(aCurSubs); aSubIt.More(); aSubIt.Next()) {
569 if (aSubs.Contains(aSubIt.Value()))
572 aSubs.Add(aSubIt.Value());
578 //==================================================================================================
579 std::list<std::shared_ptr<GeomAPI_Pnt> >
580 GeomAlgoAPI_ShapeTools::getBoundingBox(const ListOfShape& theShapes, const double theEnlarge)
582 // Bounding box of all objects.
586 for (ListOfShape::const_iterator
587 anObjectsIt = theShapes.begin(); anObjectsIt != theShapes.end(); anObjectsIt++) {
588 const TopoDS_Shape& aShape = (*anObjectsIt)->impl<TopoDS_Shape>();
589 BRepBndLib::Add(aShape, aBndBox);
592 if(theEnlarge != 0.0) {
593 // We enlarge bounding box just to be sure that plane will be large enough to cut all objects.
594 aBndBox.Enlarge(theEnlarge);
597 Standard_Real aXArr[2] = {aBndBox.CornerMin().X(), aBndBox.CornerMax().X()};
598 Standard_Real aYArr[2] = {aBndBox.CornerMin().Y(), aBndBox.CornerMax().Y()};
599 Standard_Real aZArr[2] = {aBndBox.CornerMin().Z(), aBndBox.CornerMax().Z()};
600 std::list<std::shared_ptr<GeomAPI_Pnt> > aResultPoints;
601 for(int i = 0; i < 2; i++) {
602 for(int j = 0; j < 2; j++) {
603 for(int k = 0; k < 2; k++) {
604 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aXArr[i], aYArr[j], aZArr[k]));
605 aResultPoints.push_back(aPnt);
610 return aResultPoints;
613 //==================================================================================================
614 std::shared_ptr<GeomAPI_Face> GeomAlgoAPI_ShapeTools::fitPlaneToBox(
615 const std::shared_ptr<GeomAPI_Shape> thePlane,
616 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints)
618 std::shared_ptr<GeomAPI_Face> aResultFace;
620 if(!thePlane.get()) {
624 const TopoDS_Shape& aShape = thePlane->impl<TopoDS_Shape>();
625 if(aShape.ShapeType() != TopAbs_FACE) {
629 TopoDS_Face aFace = TopoDS::Face(aShape);
630 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
635 GeomLib_IsPlanarSurface isPlanar(aSurf);
636 if(!isPlanar.IsPlanar()) {
640 if(thePoints.size() != 8) {
644 const gp_Pln& aFacePln = isPlanar.Plan();
645 Handle(Geom_Plane) aFacePlane = new Geom_Plane(aFacePln);
646 IntAna_Quadric aQuadric(aFacePln);
647 Standard_Real UMin, UMax, VMin, VMax;
648 UMin = UMax = VMin = VMax = 0;
649 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
650 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
651 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
652 gp_Lin aLin(aPnt, aFacePln.Axis().Direction());
653 IntAna_IntConicQuad anIntAna(aLin, aQuadric);
654 const gp_Pnt& aPntOnFace = anIntAna.Point(1);
655 Standard_Real aPntU(0), aPntV(0);
656 GeomLib_Tool::Parameters(aFacePlane, aPntOnFace, Precision::Confusion(), aPntU, aPntV);
657 if(aPntU < UMin) UMin = aPntU;
658 if(aPntU > UMax) UMax = aPntU;
659 if(aPntV < VMin) VMin = aPntV;
660 if(aPntV > VMax) VMax = aPntV;
662 aResultFace.reset(new GeomAPI_Face());
663 aResultFace->setImpl(new TopoDS_Face(BRepLib_MakeFace(aFacePln, UMin, UMax, VMin, VMax).Face()));
668 //==================================================================================================
669 void GeomAlgoAPI_ShapeTools::findBounds(const std::shared_ptr<GeomAPI_Shape> theShape,
670 std::shared_ptr<GeomAPI_Vertex>& theV1,
671 std::shared_ptr<GeomAPI_Vertex>& theV2)
673 static GeomVertexPtr aVertex;
675 aVertex = GeomVertexPtr(new GeomAPI_Vertex);
676 aVertex->setImpl(new TopoDS_Vertex());
683 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
684 TopoDS_Vertex aV1, aV2;
685 ShapeAnalysis::FindBounds(aShape, aV1, aV2);
687 std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
688 aGeomV1->setImpl(new TopoDS_Vertex(aV1));
689 aGeomV2->setImpl(new TopoDS_Vertex(aV2));
695 //==================================================================================================
696 void GeomAlgoAPI_ShapeTools::makeFacesWithHoles(const std::shared_ptr<GeomAPI_Pnt> theOrigin,
697 const std::shared_ptr<GeomAPI_Dir> theDirection,
698 const ListOfShape& theWires,
699 ListOfShape& theFaces)
701 BRepBuilderAPI_MakeFace aMKFace(gp_Pln(theOrigin->impl<gp_Pnt>(),
702 theDirection->impl<gp_Dir>()));
703 TopoDS_Face aFace = aMKFace.Face();
705 BRepAlgo_FaceRestrictor aFRestrictor;
706 aFRestrictor.Init(aFace, Standard_False, Standard_True);
707 for(ListOfShape::const_iterator anIt = theWires.cbegin();
708 anIt != theWires.cend();
710 TopoDS_Wire aWire = TopoDS::Wire((*anIt)->impl<TopoDS_Shape>());
711 aFRestrictor.Add(aWire);
714 aFRestrictor.Perform();
716 if(!aFRestrictor.IsDone()) {
720 for(; aFRestrictor.More(); aFRestrictor.Next()) {
721 GeomShapePtr aShape(new GeomAPI_Shape());
722 aShape->setImpl(new TopoDS_Shape(aFRestrictor.Current()));
723 theFaces.push_back(aShape);
727 //==================================================================================================
728 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_ShapeTools::findPlane(const ListOfShape& theShapes)
730 TopoDS_Compound aCompound;
731 BRep_Builder aBuilder;
732 aBuilder.MakeCompound(aCompound);
734 for(ListOfShape::const_iterator anIt = theShapes.cbegin(); anIt != theShapes.cend(); ++anIt) {
735 aBuilder.Add(aCompound, (*anIt)->impl<TopoDS_Shape>());
737 BRepBuilderAPI_FindPlane aFindPlane(aCompound);
739 if(aFindPlane.Found() != Standard_True) {
740 return std::shared_ptr<GeomAPI_Pln>();
743 Handle(Geom_Plane) aPlane = aFindPlane.Plane();
744 gp_Pnt aLoc = aPlane->Location();
745 gp_Dir aDir = aPlane->Axis().Direction();
747 std::shared_ptr<GeomAPI_Pnt> aGeomPnt(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
748 std::shared_ptr<GeomAPI_Dir> aGeomDir(new GeomAPI_Dir(aDir.X(), aDir.Y(), aDir.Z()));
750 std::shared_ptr<GeomAPI_Pln> aPln(new GeomAPI_Pln(aGeomPnt, aGeomDir));
755 //==================================================================================================
756 bool GeomAlgoAPI_ShapeTools::isSubShapeInsideShape(
757 const std::shared_ptr<GeomAPI_Shape> theSubShape,
758 const std::shared_ptr<GeomAPI_Shape> theBaseShape)
760 if(!theSubShape.get() || !theBaseShape.get()) {
764 const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
765 const TopoDS_Shape& aBaseShape = theBaseShape->impl<TopoDS_Shape>();
767 if(aSubShape.ShapeType() == TopAbs_VERTEX) {
768 // If sub-shape is a vertex check distance to shape. If it is <= Precision::Confusion() then OK.
769 BRepExtrema_DistShapeShape aDist(aBaseShape, aSubShape);
771 if(!aDist.IsDone() || aDist.Value() > Precision::Confusion()) {
774 } else if (aSubShape.ShapeType() == TopAbs_EDGE) {
775 if(aBaseShape.ShapeType() == TopAbs_FACE) {
776 // Check that edge is on face surface.
777 TopoDS_Face aFace = TopoDS::Face(aBaseShape);
778 TopoDS_Edge anEdge = TopoDS::Edge(aSubShape);
779 BRepLib_CheckCurveOnSurface aCheck(anEdge, aFace);
781 if(!aCheck.IsDone() || aCheck.MaxDistance() > Precision::Confusion()) {
785 // Check intersections.
786 TopoDS_Vertex aV1, aV2;
787 ShapeAnalysis::FindBounds(anEdge, aV1, aV2);
788 gp_Pnt aPnt1 = BRep_Tool::Pnt(aV1);
789 gp_Pnt aPnt2 = BRep_Tool::Pnt(aV2);
790 for(TopExp_Explorer anExp(aBaseShape, TopAbs_EDGE); anExp.More(); anExp.Next()) {
791 const TopoDS_Shape& anEdgeOnFace = anExp.Current();
792 BRepExtrema_DistShapeShape aDist(anEdgeOnFace, anEdge);
794 if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
795 // Edge intersect face bound. Check that it is not on edge begin or end.
796 for(Standard_Integer anIndex = 1; anIndex <= aDist.NbSolution(); ++anIndex) {
797 gp_Pnt aPntOnSubShape = aDist.PointOnShape2(anIndex);
798 if(aPntOnSubShape.Distance(aPnt1) > Precision::Confusion()
799 && aPntOnSubShape.Distance(aPnt2) > Precision::Confusion()) {
806 // No intersections found. Edge is inside or outside face. Check it.
807 BRepAdaptor_Curve aCurveAdaptor(anEdge);
808 gp_Pnt aPointToCheck =
809 aCurveAdaptor.Value((aCurveAdaptor.FirstParameter() +
810 aCurveAdaptor.LastParameter()) / 2.0);
811 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(aFace);
812 ShapeAnalysis_Surface aSAS(aSurface);
813 gp_Pnt2d aPointOnFace = aSAS.ValueOfUV(aPointToCheck, Precision::Confusion());
814 BRepTopAdaptor_FClass2d aFClass2d(aFace, Precision::Confusion());
815 if(aFClass2d.Perform(aPointOnFace) == TopAbs_OUT) {
829 //==================================================================================================
830 bool GeomAlgoAPI_ShapeTools::isShapeValid(const std::shared_ptr<GeomAPI_Shape> theShape)
832 if(!theShape.get()) {
836 BRepCheck_Analyzer aChecker(theShape->impl<TopoDS_Shape>());
837 return (aChecker.IsValid() == Standard_True);
840 //==================================================================================================
841 std::shared_ptr<GeomAPI_Shape>
842 GeomAlgoAPI_ShapeTools::getFaceOuterWire(const std::shared_ptr<GeomAPI_Shape> theFace)
844 GeomShapePtr anOuterWire;
846 if(!theFace.get() || !theFace->isFace()) {
850 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
851 TopoDS_Wire aWire = BRepTools::OuterWire(aFace);
853 anOuterWire.reset(new GeomAPI_Shape());
854 anOuterWire->setImpl(new TopoDS_Shape(aWire));
859 //==================================================================================================
860 static bool boundaryOfEdge(const std::shared_ptr<GeomAPI_Edge> theEdge,
861 const std::shared_ptr<GeomAPI_Vertex> theVertex,
864 GeomPointPtr aPoint = theVertex->point();
865 GeomPointPtr aFirstPnt = theEdge->firstPoint();
866 double aFirstPntTol = theEdge->firstPointTolerance();
867 GeomPointPtr aLastPnt = theEdge->lastPoint();
868 double aLastPntTol = theEdge->lastPointTolerance();
870 double aFirst, aLast;
871 theEdge->getRange(aFirst, aLast);
873 bool isFirst = aPoint->distance(aFirstPnt) <= aFirstPntTol;
874 bool isLast = aPoint->distance(aLastPnt) <= aLastPntTol;
880 return isFirst != isLast;
883 bool GeomAlgoAPI_ShapeTools::isTangent(const std::shared_ptr<GeomAPI_Edge> theEdge1,
884 const std::shared_ptr<GeomAPI_Edge> theEdge2,
885 const std::shared_ptr<GeomAPI_Vertex> theTgPoint)
887 double aParE1 = 0, aParE2 = 0;
888 if (!boundaryOfEdge(theEdge1, theTgPoint, aParE1) ||
889 !boundaryOfEdge(theEdge2, theTgPoint, aParE2))
892 BRepAdaptor_Curve aC1(theEdge1->impl<TopoDS_Edge>());
893 BRepAdaptor_Curve aC2(theEdge2->impl<TopoDS_Edge>());
894 return BRepLProp::Continuity(aC1, aC2, aParE1, aParE2) >= GeomAbs_G1;
897 //==================================================================================================
898 bool GeomAlgoAPI_ShapeTools::isParallel(const std::shared_ptr<GeomAPI_Edge> theEdge,
899 const std::shared_ptr<GeomAPI_Face> theFace)
901 if(!theEdge.get() || !theFace.get()) {
905 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
906 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
908 BRepExtrema_ExtCF anExt(anEdge, aFace);
909 return anExt.IsParallel() == Standard_True;
912 //==================================================================================================
913 std::list<std::shared_ptr<GeomAPI_Vertex> > GeomAlgoAPI_ShapeTools::intersect(
914 const std::shared_ptr<GeomAPI_Edge> theEdge, const std::shared_ptr<GeomAPI_Face> theFace)
916 std::list<std::shared_ptr<GeomAPI_Vertex> > aResult;
917 if(!theEdge.get() || !theFace.get()) {
921 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
922 double aFirstOnCurve, aLastOnCurve;
923 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirstOnCurve, aLastOnCurve);
925 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
926 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
928 GeomAPI_IntCS anIntAlgo(aCurve, aSurf);
929 if (!anIntAlgo.IsDone())
931 // searching for points-intersection
932 for(int anIntNum = 1; anIntNum <= anIntAlgo.NbPoints() + anIntAlgo.NbSegments(); anIntNum++) {
934 if (anIntNum <= anIntAlgo.NbPoints()) {
935 anInt = anIntAlgo.Point(anIntNum);
936 } else { // take the middle point on the segment of the intersection
937 Handle(Geom_Curve) anIntCurve = anIntAlgo.Segment(anIntNum - anIntAlgo.NbPoints());
938 anIntCurve->D0((anIntCurve->FirstParameter() + anIntCurve->LastParameter()) / 2., anInt);
940 aResult.push_back(std::shared_ptr<GeomAPI_Vertex>(
941 new GeomAPI_Vertex(anInt.X(), anInt.Y(), anInt.Z())));
946 //==================================================================================================
947 void GeomAlgoAPI_ShapeTools::splitShape(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
948 const GeomAlgoAPI_ShapeTools::PointToRefsMap& thePointsInfo,
949 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
951 // to split shape at least one point should be presented in the points container
952 if (thePointsInfo.empty())
955 // General Fuse to split edge by vertices
956 BOPAlgo_Builder aBOP;
957 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
958 // Rebuild closed edge to place vertex to one of split points.
959 // This will prevent edge to be split on same vertex.
960 if (BRep_Tool::IsClosed(aBaseEdge))
962 Standard_Real aFirst, aLast;
963 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
965 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
966 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
967 gp_Pnt aPoint(aPnt->x(), aPnt->y(), aPnt->z());
969 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
970 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
971 aBaseEdge.Orientation(anOrientation);
973 aBOP.AddArgument(aBaseEdge);
975 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
976 for (; aPIt != thePointsInfo.end(); ++aPIt) {
977 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
978 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
979 aBOP.AddArgument(aV);
983 if (aBOP.HasErrors())
987 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
988 TopTools_ListIteratorOfListOfShape anIt(aSplits);
989 for (; anIt.More(); anIt.Next()) {
990 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
991 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
992 theShapes.insert(anEdge);
996 //==================================================================================================
997 void GeomAlgoAPI_ShapeTools::splitShape_p(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
998 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
999 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
1001 // General Fuse to split edge by vertices
1002 BOPAlgo_Builder aBOP;
1003 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
1004 // Rebuild closed edge to place vertex to one of split points.
1005 // This will prevent edge to be split on seam vertex.
1006 if (BRep_Tool::IsClosed(aBaseEdge))
1008 Standard_Real aFirst, aLast;
1009 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
1011 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPIt = thePoints.begin();
1012 gp_Pnt aPoint((*aPIt)->x(), (*aPIt)->y(), (*aPIt)->z());
1014 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
1015 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
1016 aBaseEdge.Orientation(anOrientation);
1018 aBOP.AddArgument(aBaseEdge);
1020 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPtIt = thePoints.begin();
1021 for (; aPtIt != thePoints.end(); ++aPtIt) {
1022 std::shared_ptr<GeomAPI_Pnt> aPnt = *aPtIt;
1023 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
1024 aBOP.AddArgument(aV);
1028 if (aBOP.HasErrors())
1032 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
1033 TopTools_ListIteratorOfListOfShape anIt(aSplits);
1034 for (; anIt.More(); anIt.Next()) {
1035 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
1036 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
1037 theShapes.insert(anEdge);
1041 //==================================================================================================
1042 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::findShape(
1043 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1044 const std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
1046 std::shared_ptr<GeomAPI_Shape> aResultShape;
1048 if (thePoints.size() == 2) {
1049 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPntIt = thePoints.begin();
1050 std::shared_ptr<GeomAPI_Pnt> aFirstPoint = *aPntIt;
1052 std::shared_ptr<GeomAPI_Pnt> aLastPoint = *aPntIt;
1054 std::set<std::shared_ptr<GeomAPI_Shape> >::const_iterator anIt = theShapes.begin(),
1055 aLast = theShapes.end();
1056 for (; anIt != aLast; anIt++) {
1057 GeomShapePtr aShape = *anIt;
1058 std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aShape));
1060 std::shared_ptr<GeomAPI_Pnt> anEdgeFirstPoint = anEdge->firstPoint();
1061 std::shared_ptr<GeomAPI_Pnt> anEdgeLastPoint = anEdge->lastPoint();
1062 if (anEdgeFirstPoint->isEqual(aFirstPoint) &&
1063 anEdgeLastPoint->isEqual(aLastPoint))
1064 aResultShape = aShape;
1069 return aResultShape;
1072 //==================================================================================================
1073 #ifdef FEATURE_MULTIROTATION_TWO_DIRECTIONS
1074 std::shared_ptr<GeomAPI_Dir> GeomAlgoAPI_ShapeTools::buildDirFromAxisAndShape(
1075 const std::shared_ptr<GeomAPI_Shape> theBaseShape,
1076 const std::shared_ptr<GeomAPI_Ax1> theAxis)
1078 gp_Pnt aCentreOfMassPoint =
1079 GeomAlgoAPI_ShapeTools::centreOfMass(theBaseShape)->impl<gp_Pnt>();
1080 Handle(Geom_Line) aLine = new Geom_Line(theAxis->impl<gp_Ax1>());
1081 GeomAPI_ProjectPointOnCurve aPrjTool(aCentreOfMassPoint, aLine);
1082 gp_Pnt aPoint = aPrjTool.NearestPoint();
1084 std::shared_ptr<GeomAPI_Dir> aDir(new GeomAPI_Dir(aCentreOfMassPoint.X()-aPoint.X(),
1085 aCentreOfMassPoint.Y()-aPoint.Y(),
1086 aCentreOfMassPoint.Z()-aPoint.Z()));
1091 //==================================================================================================
1092 static TopoDS_Wire fixParametricGaps(const TopoDS_Wire& theWire)
1094 TopoDS_Wire aFixedWire;
1095 Handle(Geom_Curve) aPrevCurve;
1096 double aPrevLastParam = -Precision::Infinite();
1098 BRep_Builder aBuilder;
1099 aBuilder.MakeWire(aFixedWire);
1101 BRepTools_WireExplorer aWExp(theWire);
1102 for (; aWExp.More(); aWExp.Next()) {
1103 TopoDS_Edge anEdge = aWExp.Current();
1104 double aFirst, aLast;
1105 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
1106 if (aCurve == aPrevCurve && Abs(aFirst - aPrevLastParam) > Precision::Confusion()) {
1107 // if parametric gap occurs, create new edge based on the copied curve
1108 aCurve = Handle(Geom_Curve)::DownCast(aCurve->Copy());
1109 TopoDS_Vertex aV1, aV2;
1110 TopExp::Vertices(anEdge, aV1, aV2);
1111 anEdge = TopoDS::Edge(anEdge.EmptyCopied());
1112 aBuilder.UpdateEdge(anEdge, aCurve, BRep_Tool::Tolerance(anEdge));
1113 aBuilder.Add(anEdge, aV1);
1114 aBuilder.Add(anEdge, aV2);
1117 aBuilder.Add(aFixedWire, anEdge);
1119 aPrevCurve = aCurve;
1120 aPrevLastParam = aLast;
1126 //==================================================================================================
1127 std::shared_ptr<GeomAPI_Edge> GeomAlgoAPI_ShapeTools::wireToEdge(
1128 const std::shared_ptr<GeomAPI_Wire>& theWire)
1132 TopoDS_Wire aWire = theWire->impl<TopoDS_Wire>();
1133 // Workaround: when concatenate a wire consisting of two edges based on the same B-spline curve
1134 // (non-periodic, but having equal start and end points), first of which is placed at the end
1135 // on the curve and second is placed at the start, this workaround copies second curve to avoid
1136 // treating these edges as a single curve by setting trim parameters.
1137 aWire = fixParametricGaps(aWire);
1138 TopoDS_Edge aNewEdge = BRepAlgo::ConcatenateWireC0(aWire);
1139 anEdge = GeomEdgePtr(new GeomAPI_Edge);
1140 anEdge->setImpl(new TopoDS_Edge(aNewEdge));
1145 //==================================================================================================
1146 ListOfShape GeomAlgoAPI_ShapeTools::getLowLevelSubShapes(const GeomShapePtr& theShape)
1148 ListOfShape aSubShapes;
1150 if (!theShape->isCompound() && !theShape->isCompSolid() &&
1151 !theShape->isShell() && !theShape->isWire()) {
1155 for (GeomAPI_ShapeIterator anIt(theShape); anIt.more(); anIt.next()) {
1156 GeomShapePtr aSubShape = anIt.current();
1157 if (aSubShape->isVertex() || aSubShape->isEdge() ||
1158 aSubShape->isFace() || aSubShape->isSolid()) {
1159 aSubShapes.push_back(aSubShape);
1161 aSubShapes.splice(aSubShapes.end(), getLowLevelSubShapes(aSubShape));
1168 //==================================================================================================
1169 static void getMinMaxPointsOnLine(const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1170 const gp_Dir theDir,
1171 double& theMin, double& theMax)
1173 theMin = RealLast();
1174 theMax = RealFirst();
1175 // Project bounding points on theDir
1176 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
1177 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
1178 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
1179 gp_Dir aPntDir (aPnt.XYZ());
1180 Standard_Real proj = (theDir*aPntDir) * aPnt.XYZ().Modulus();
1181 if (proj < theMin) theMin = proj;
1182 if (proj > theMax) theMax = proj;
1186 //==================================================================================================
1187 void GeomAlgoAPI_ShapeTools::computeThroughAll(const ListOfShape& theObjects,
1188 const ListOfShape& theBaseShapes,
1189 const std::shared_ptr<GeomAPI_Dir> theDir,
1190 double& theToSize, double& theFromSize)
1192 // Bounding box of objects
1193 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndObjs =
1194 GeomAlgoAPI_ShapeTools::getBoundingBox(theObjects);
1195 if (aBndObjs.size() != 8) {
1199 // the value to enlarge the bounding box of each object to make the extruded shape
1200 // a little bit larger than overall objects to get the correct result of Boolean CUT operation
1201 double anEnlargement = 0.1 * aBndObjs.front()->distance(aBndObjs.back());
1205 // One direction for all prisms
1206 gp_Dir aDir = theDir->impl<gp_Dir>();
1208 // Bounding box of the base
1209 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndBases =
1210 GeomAlgoAPI_ShapeTools::getBoundingBox(theBaseShapes);
1211 if (aBndBases.size() != 8) {
1216 Standard_Real lowBnd, upperBnd;
1217 getMinMaxPointsOnLine(aBndObjs, aDir, lowBnd, upperBnd);
1220 Standard_Real lowBase, upperBase;
1221 getMinMaxPointsOnLine(aBndBases, aDir, lowBase, upperBase);
1223 // ----------.-----.---------.--------------.-----------> theDir
1224 // lowBnd lowBase upperBase upperBnd
1226 theToSize = upperBnd - lowBase;
1227 theFromSize = upperBase - lowBnd;
1229 // Direction is a normal to each base shape (different normals to bases)
1230 // So we calculate own sizes for each base shape
1234 for (ListOfShape::const_iterator anIt = theBaseShapes.begin();
1235 anIt != theBaseShapes.end(); ++anIt) {
1236 const GeomShapePtr& aBaseShape_i = (*anIt);
1237 ListOfShape aBaseShapes_i;
1238 aBaseShapes_i.push_back(aBaseShape_i);
1240 // Bounding box of the base
1241 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndBases =
1242 GeomAlgoAPI_ShapeTools::getBoundingBox(aBaseShapes_i, anEnlargement);
1243 if (aBndBases.size() != 8) {
1247 // Direction (normal to aBaseShapes_i)
1248 // Code like in GeomAlgoAPI_Prism
1250 const TopoDS_Shape& aBaseShape = aBaseShape_i->impl<TopoDS_Shape>();
1251 BRepBuilderAPI_FindPlane aFindPlane(aBaseShape);
1252 if (aFindPlane.Found() == Standard_True) {
1253 Handle(Geom_Plane) aPlane;
1254 if (aBaseShape.ShapeType() == TopAbs_FACE || aBaseShape.ShapeType() == TopAbs_SHELL) {
1255 TopExp_Explorer anExp(aBaseShape, TopAbs_FACE);
1256 const TopoDS_Shape& aFace = anExp.Current();
1257 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(TopoDS::Face(aFace));
1258 if(aSurface->DynamicType() == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
1259 Handle(Geom_RectangularTrimmedSurface) aTrimSurface =
1260 Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
1261 aSurface = aTrimSurface->BasisSurface();
1263 if(aSurface->DynamicType() != STANDARD_TYPE(Geom_Plane)) {
1266 aPlane = Handle(Geom_Plane)::DownCast(aSurface);
1268 aPlane = aFindPlane.Plane();
1270 aDir = aPlane->Axis().Direction();
1276 Standard_Real lowBnd, upperBnd;
1277 getMinMaxPointsOnLine(aBndObjs, aDir, lowBnd, upperBnd);
1280 Standard_Real lowBase, upperBase;
1281 getMinMaxPointsOnLine(aBndBases, aDir, lowBase, upperBase);
1283 // ----------.-----.---------.--------------.-----------> theDir
1284 // lowBnd lowBase upperBase upperBnd
1286 double aToSize_i = upperBnd - lowBase;
1287 double aFromSize_i = upperBase - lowBnd;
1289 if (aToSize_i > theToSize) theToSize = aToSize_i;
1290 if (aFromSize_i > theFromSize) theFromSize = aFromSize_i;