1 // Copyright (C) 2014-2019 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>
33 #include <BRep_Builder.hxx>
34 #include <BRepAdaptor_Curve.hxx>
35 #include <BRepAlgo.hxx>
36 #include <BRepAlgo_FaceRestrictor.hxx>
37 #include <BRepBndLib.hxx>
38 #include <BRepBuilderAPI_FindPlane.hxx>
39 #include <BRepBuilderAPI_MakeEdge.hxx>
40 #include <BRepBuilderAPI_MakeFace.hxx>
41 #include <BRepCheck_Analyzer.hxx>
42 #include <BRepExtrema_DistShapeShape.hxx>
43 #include <BRepExtrema_ExtCF.hxx>
44 #include <BRepGProp.hxx>
45 #include <BRepTools.hxx>
46 #include <BRepTools_WireExplorer.hxx>
47 #include <BRepTopAdaptor_FClass2d.hxx>
48 #include <BRepClass_FaceClassifier.hxx>
49 #include <Geom2d_Curve.hxx>
50 #include <Geom2d_Curve.hxx>
51 #include <BRepLib_CheckCurveOnSurface.hxx>
52 #include <BRep_Tool.hxx>
53 #include <Geom_CylindricalSurface.hxx>
54 #include <Geom_Line.hxx>
55 #include <Geom_Plane.hxx>
56 #include <GeomAPI_ProjectPointOnCurve.hxx>
57 #include <GeomAPI_ShapeIterator.h>
58 #include <GeomLib_IsPlanarSurface.hxx>
59 #include <GeomLib_Tool.hxx>
60 #include <GeomAPI_IntCS.hxx>
62 #include <GProp_GProps.hxx>
63 #include <IntAna_IntConicQuad.hxx>
64 #include <IntAna_Quadric.hxx>
65 #include <NCollection_Vector.hxx>
66 #include <ShapeAnalysis.hxx>
67 #include <ShapeAnalysis_Surface.hxx>
68 #include <TopoDS_Builder.hxx>
69 #include <TopoDS_Edge.hxx>
70 #include <TopoDS_Face.hxx>
71 #include <TopoDS_Shape.hxx>
72 #include <TopoDS_Shell.hxx>
73 #include <TopoDS_Vertex.hxx>
76 #include <TopExp_Explorer.hxx>
77 #include <TopTools_ListIteratorOfListOfShape.hxx>
80 #include <BOPAlgo_Builder.hxx>
81 #include <BRepBuilderAPI_MakeVertex.hxx>
82 #include <TopoDS_Edge.hxx>
84 //==================================================================================================
85 static GProp_GProps props(const TopoDS_Shape& theShape)
89 if (theShape.ShapeType() == TopAbs_EDGE || theShape.ShapeType() == TopAbs_WIRE)
91 BRepGProp::LinearProperties(theShape, aGProps);
93 else if (theShape.ShapeType() == TopAbs_FACE || theShape.ShapeType() == TopAbs_SHELL)
95 const Standard_Real anEps = 1.e-6;
96 BRepGProp::SurfaceProperties(theShape, aGProps, anEps);
98 else if (theShape.ShapeType() == TopAbs_SOLID || theShape.ShapeType() == TopAbs_COMPSOLID)
100 BRepGProp::VolumeProperties(theShape, aGProps);
102 else if (theShape.ShapeType() == TopAbs_COMPOUND)
104 for (TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next())
106 aGProps.Add(props(anIt.Value()));
113 //==================================================================================================
114 double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theShape)
116 GProp_GProps aGProps;
117 if(!theShape.get()) {
120 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
121 if(aShape.IsNull()) {
124 const Standard_Real anEps = 1.e-6;
125 if (aShape.ShapeType() <= TopAbs_SOLID)
126 BRepGProp::VolumeProperties(aShape, aGProps, anEps);
128 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
129 return aGProps.Mass();
132 //==================================================================================================
133 double GeomAlgoAPI_ShapeTools::area (const std::shared_ptr<GeomAPI_Shape> theShape)
135 GProp_GProps aGProps;
136 if(!theShape.get()) {
139 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
140 if(aShape.IsNull()) {
143 const Standard_Real anEps = 1.e-6;
145 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
146 return aGProps.Mass();
149 //==================================================================================================
150 std::shared_ptr<GeomAPI_Pnt>
151 GeomAlgoAPI_ShapeTools::centreOfMass(const std::shared_ptr<GeomAPI_Shape> theShape)
153 GProp_GProps aGProps;
155 return std::shared_ptr<GeomAPI_Pnt>();
157 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
158 if(aShape.IsNull()) {
159 return std::shared_ptr<GeomAPI_Pnt>();
162 if(aShape.ShapeType() == TopAbs_VERTEX) {
163 aCentre = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
165 aGProps = props(aShape);
166 aCentre = aGProps.CentreOfMass();
169 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aCentre.X(), aCentre.Y(), aCentre.Z()));
172 //==================================================================================================
173 double GeomAlgoAPI_ShapeTools::radius(const std::shared_ptr<GeomAPI_Face>& theCylinder)
175 double aRadius = -1.0;
176 if (theCylinder->isCylindrical()) {
177 const TopoDS_Shape& aShape = theCylinder->impl<TopoDS_Shape>();
178 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(TopoDS::Face(aShape));
179 Handle(Geom_CylindricalSurface) aCyl = Handle(Geom_CylindricalSurface)::DownCast(aSurf);
181 aRadius = aCyl->Radius();
186 //==================================================================================================
187 double GeomAlgoAPI_ShapeTools::minimalDistance(const GeomShapePtr& theShape1,
188 const GeomShapePtr& theShape2)
190 const TopoDS_Shape& aShape1 = theShape1->impl<TopoDS_Shape>();
191 const TopoDS_Shape& aShape2 = theShape2->impl<TopoDS_Shape>();
193 BRepExtrema_DistShapeShape aDist(aShape1, aShape2);
195 return aDist.IsDone() ? aDist.Value() : Precision::Infinite();
198 //==================================================================================================
199 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
200 const std::shared_ptr<GeomAPI_Shape> theCompound,
201 const GeomAPI_Shape::ShapeType theType,
202 ListOfShape& theResuts)
205 ListOfShape aResCombinedShapes;
206 ListOfShape aResFreeShapes;
208 GeomShapePtr aResult = theCompound;
210 if(!theCompound.get()) {
214 if(theType != GeomAPI_Shape::SHELL && theType != GeomAPI_Shape::COMPSOLID) {
218 TopAbs_ShapeEnum aTS = TopAbs_EDGE;
219 TopAbs_ShapeEnum aTA = TopAbs_FACE;
220 if(theType == GeomAPI_Shape::COMPSOLID) {
225 // map from the resulting shapes to minimal index of the used shape from theCompound list
226 std::map<GeomShapePtr, int> anInputOrder;
227 // map from ancestors-shapes to the index of shapes in theCompound
228 NCollection_DataMap<TopoDS_Shape, int> anAncestorsOrder;
232 const TopoDS_Shape& aShapesComp = theCompound->impl<TopoDS_Shape>();
233 for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next(), anOrder++) {
234 const TopoDS_Shape& aShape = anIter.Value();
235 if(aShape.ShapeType() > aTA) {
236 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
237 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
238 aResFreeShapes.push_back(aGeomShape);
239 anInputOrder[aGeomShape] = anOrder;
241 for(TopExp_Explorer anExp(aShape, aTA); anExp.More(); anExp.Next()) {
242 anAncestorsOrder.Bind(anExp.Current(), anOrder);
247 // Map sub-shapes and shapes.
248 TopTools_IndexedDataMapOfShapeListOfShape aMapSA;
249 TopExp::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
250 if(aMapSA.IsEmpty()) {
255 // Get all shapes with common sub-shapes and free shapes.
256 NCollection_Map<TopoDS_Shape> aFreeShapes;
257 NCollection_Vector<NCollection_Map<TopoDS_Shape>> aShapesWithCommonSubshapes;
258 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
259 anIter(aMapSA); anIter.More(); anIter.Next()) {
260 const TopoDS_Shape& aShape = anIter.Key();
261 TopTools_ListOfShape& aListOfShape = anIter.ChangeValue();
262 if(aListOfShape.IsEmpty()) {
265 else if(aListOfShape.Size() == 1) {
266 const TopoDS_Shape& aF = aListOfShape.First();
268 aListOfShape.Clear();
270 NCollection_List<TopoDS_Shape> aTempList;
271 NCollection_Map<TopoDS_Shape> aTempMap;
272 for (TopTools_ListOfShape::Iterator aListIt(aListOfShape); aListIt.More(); aListIt.Next()) {
273 aTempList.Append(aListIt.Value());
274 aTempMap.Add(aListIt.Value());
275 aFreeShapes.Remove(aListIt.Value());
277 aListOfShape.Clear();
278 for(NCollection_List<TopoDS_Shape>::Iterator
279 aTempIter(aTempList); aTempIter.More(); aTempIter.Next()) {
280 const TopoDS_Shape& aTempShape = aTempIter.Value();
281 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
282 anIter(aMapSA); anIter.More(); anIter.Next()) {
283 TopTools_ListOfShape& aTempListOfShape = anIter.ChangeValue();
284 if(aTempListOfShape.IsEmpty()) {
286 } else if(aTempListOfShape.Size() == 1 && aTempListOfShape.First() == aTempShape) {
287 aTempListOfShape.Clear();
288 } else if(aTempListOfShape.Size() > 1) {
289 TopTools_ListOfShape::Iterator anIt1(aTempListOfShape);
290 for (; anIt1.More(); anIt1.Next()) {
291 if (anIt1.Value() == aTempShape) {
292 TopTools_ListOfShape::Iterator anIt2(aTempListOfShape);
293 for (; anIt2.More(); anIt2.Next())
295 if (anIt2.Value() != anIt1.Value()) {
296 if (aTempMap.Add(anIt2.Value())) {
297 aTempList.Append(anIt2.Value());
298 aFreeShapes.Remove(anIt2.Value());
302 aTempListOfShape.Clear();
309 aShapesWithCommonSubshapes.Append(aTempMap);
313 // Combine shapes with common sub-shapes.
314 for(NCollection_Vector<NCollection_Map<TopoDS_Shape>>::Iterator
315 anIter(aShapesWithCommonSubshapes); anIter.More(); anIter.Next()) {
317 TopoDS_CompSolid aCSolid;
318 TopoDS_Builder aBuilder;
321 GeomAPI_Shape::COMPSOLID ? aBuilder.MakeCompSolid(aCSolid) : aBuilder.MakeShell(aShell);
322 NCollection_Map<TopoDS_Shape>& aShapesMap = anIter.ChangeValue();
323 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
324 const TopoDS_Shape& aShape = anExp.Current();
325 if(aShapesMap.Contains(aShape)) {
327 GeomAPI_Shape::COMPSOLID ? aBuilder.Add(aCSolid, aShape) : aBuilder.Add(aShell, aShape);
328 aShapesMap.Remove(aShape);
329 int aThisOrder = anAncestorsOrder.Find(aShape);
330 if (anOrder == -1 || aThisOrder < anOrder)
331 anOrder = aThisOrder; // take the minimum order position
334 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
335 TopoDS_Shape* aSh = theType == GeomAPI_Shape::COMPSOLID ? new TopoDS_Shape(aCSolid) :
336 new TopoDS_Shape(aShell);
337 aGeomShape->setImpl<TopoDS_Shape>(aSh);
338 aResCombinedShapes.push_back(aGeomShape);
339 anInputOrder[aGeomShape] = anOrder;
342 // Adding free shapes.
343 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
344 const TopoDS_Shape& aShape = anExp.Current();
345 if(aFreeShapes.Contains(aShape)) {
346 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
347 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
348 aResFreeShapes.push_back(aGeomShape);
349 anInputOrder[aGeomShape] = anAncestorsOrder.Find(aShape);
353 if(aResCombinedShapes.size() == 1 && aResFreeShapes.size() == 0) {
354 aResult = aResCombinedShapes.front();
355 theResuts.push_back(aResult);
356 } else if(aResCombinedShapes.size() == 0 && aResFreeShapes.size() == 1) {
357 aResult = aResFreeShapes.front();
358 theResuts.push_back(aResult);
360 TopoDS_Compound aResultComp;
361 TopoDS_Builder aBuilder;
362 aBuilder.MakeCompound(aResultComp);
363 // put to result compound and result list in accordance to the order numbers
364 std::map<GeomShapePtr, int>::iterator anInputIter = anInputOrder.begin();
365 std::map<int, GeomShapePtr> aNums;
366 for(; anInputIter != anInputOrder.end(); anInputIter++)
367 aNums[anInputIter->second] = anInputIter->first;
368 std::map<int, GeomShapePtr>::iterator aNumsIter = aNums.begin();
369 for(; aNumsIter != aNums.end(); aNumsIter++) {
370 aBuilder.Add(aResultComp, (aNumsIter->second)->impl<TopoDS_Shape>());
371 theResuts.push_back(aNumsIter->second);
373 aResult->setImpl(new TopoDS_Shape(aResultComp));
379 //==================================================================================================
380 static void addSimpleShapeToList(const TopoDS_Shape& theShape,
381 NCollection_List<TopoDS_Shape>& theList)
383 if(theShape.IsNull()) {
387 if(theShape.ShapeType() == TopAbs_COMPOUND) {
388 for(TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next()) {
389 addSimpleShapeToList(anIt.Value(), theList);
392 theList.Append(theShape);
396 //==================================================================================================
397 static TopoDS_Compound makeCompound(const NCollection_List<TopoDS_Shape> theShapes)
399 TopoDS_Compound aCompound;
401 BRep_Builder aBuilder;
402 aBuilder.MakeCompound(aCompound);
404 for(NCollection_List<TopoDS_Shape>::Iterator anIt(theShapes); anIt.More(); anIt.Next()) {
405 aBuilder.Add(aCompound, anIt.Value());
411 //==================================================================================================
412 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
413 const std::shared_ptr<GeomAPI_Shape> theCompound)
415 GeomShapePtr aResult = theCompound;
417 if (!theCompound.get()) {
421 TopoDS_Shape anInShape = aResult->impl<TopoDS_Shape>();
422 NCollection_List<TopoDS_Shape> anUngroupedShapes, aStillUngroupedShapes;
423 addSimpleShapeToList(anInShape, anUngroupedShapes);
425 // Iterate over all shapes and find shapes with shared vertices.
426 TopTools_ListOfShape allVertices;
427 TopTools_DataMapOfShapeListOfShape aVertexShapesMap;
428 for (NCollection_List<TopoDS_Shape>::Iterator aShapesIt(anUngroupedShapes);
431 const TopoDS_Shape& aShape = aShapesIt.Value();
432 for (TopExp_Explorer aShapeExp(aShape, TopAbs_VERTEX);
435 const TopoDS_Shape& aVertex = aShapeExp.Current();
436 if (!aVertexShapesMap.IsBound(aVertex)) {
437 NCollection_List<TopoDS_Shape> aList;
438 aList.Append(aShape);
439 allVertices.Append(aVertex);
440 aVertexShapesMap.Bind(aVertex, aList);
443 if (!aVertexShapesMap.ChangeFind(aVertex).Contains(aShape)) {
444 aVertexShapesMap.ChangeFind(aVertex).Append(aShape);
450 // Iterate over the map and group shapes.
451 NCollection_Vector<TopTools_MapOfShape> aGroups; // groups of shapes connected by vertices
452 while (!allVertices.IsEmpty()) {
453 // Get first group of shapes in map, and then unbind it.
454 const TopoDS_Shape& aKey = allVertices.First();
455 TopTools_ListOfShape aConnectedShapes = aVertexShapesMap.Find(aKey);
456 aVertexShapesMap.UnBind(aKey);
457 allVertices.Remove(aKey);
458 // Iterate over shapes in this group and add to it shapes from groups in map.
459 for (TopTools_ListOfShape::Iterator aConnectedIt(aConnectedShapes);
460 aConnectedIt.More(); aConnectedIt.Next()) {
461 const TopoDS_Shape& aConnected = aConnectedIt.Value();
462 TopTools_ListOfShape aKeysToUnbind;
463 for (TopTools_ListOfShape::Iterator aKeysIt(allVertices);
466 const TopTools_ListOfShape& anOtherConnected = aVertexShapesMap(aKeysIt.Value());
467 if (!anOtherConnected.Contains(aConnected)) {
468 // Other connected group does not contain shape from our connected group
471 // Other is connected to our, so add them to our connected
472 for (TopTools_ListOfShape::Iterator anOtherIt(anOtherConnected);
475 const TopoDS_Shape& aShape = anOtherIt.Value();
476 if (!aConnectedShapes.Contains(aShape)) {
477 aConnectedShapes.Append(aShape);
480 // Save key to unbind from this map.
481 aKeysToUnbind.Append(aKeysIt.Value());
483 // Unbind groups from map that we added to our group.
484 for (TopTools_ListOfShape::Iterator aKeysIt(aKeysToUnbind);
487 aVertexShapesMap.UnBind(aKeysIt.Value());
488 allVertices.Remove(aKeysIt.Value());
491 // Sort shapes from the most complicated to the simplest ones
492 TopTools_MapOfShape aSortedGroup;
493 for (int aST = TopAbs_COMPOUND; aST <= TopAbs_SHAPE; ++aST) {
494 TopTools_ListOfShape::Iterator anIt(aConnectedShapes);
495 while (anIt.More()) {
496 if (anIt.Value().ShapeType() == aST) {
497 aSortedGroup.Add(anIt.Value());
498 aConnectedShapes.Remove(anIt);
505 aGroups.Append(aSortedGroup);
508 TopoDS_Compound aCompound;
509 BRep_Builder aBuilder;
510 aBuilder.MakeCompound(aCompound);
512 for (NCollection_Vector<TopTools_MapOfShape>::Iterator anIt(aGroups); anIt.More(); anIt.Next()) {
513 const TopTools_MapOfShape& aGroup = anIt.ChangeValue();
514 GeomShapePtr aGeomShape(new GeomAPI_Shape());
515 if(aGroup.Size() == 1) {
516 TopTools_MapOfShape::Iterator aOneShapeIter(aGroup);
517 aGeomShape->setImpl(new TopoDS_Shape(aOneShapeIter.Value()));
519 // make sub-shapes in the group have order same as in original shape
520 TopTools_ListOfShape anOrderedGoup;
521 NCollection_List<TopoDS_Shape>::Iterator anUngrouped(anUngroupedShapes);
522 for (; anUngrouped.More(); anUngrouped.Next()) {
523 if (aGroup.Contains(anUngrouped.Value()))
524 anOrderedGoup.Append(anUngrouped.Value());
526 aGeomShape->setImpl(new TopoDS_Shape(makeCompound(anOrderedGoup)));
527 aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
528 GeomAPI_Shape::COMPSOLID,
531 aBuilder.Add(aCompound, aGeomShape->impl<TopoDS_Shape>());
534 if(!aCompound.IsNull()) {
535 aResult->setImpl(new TopoDS_Shape(aCompound));
541 //==================================================================================================
542 std::list<std::shared_ptr<GeomAPI_Pnt> >
543 GeomAlgoAPI_ShapeTools::getBoundingBox(const ListOfShape& theShapes, const double theEnlarge)
545 // Bounding box of all objects.
549 for (ListOfShape::const_iterator
550 anObjectsIt = theShapes.begin(); anObjectsIt != theShapes.end(); anObjectsIt++) {
551 const TopoDS_Shape& aShape = (*anObjectsIt)->impl<TopoDS_Shape>();
552 BRepBndLib::Add(aShape, aBndBox);
555 if(theEnlarge != 0.0) {
556 // We enlarge bounding box just to be sure that plane will be large enough to cut all objects.
557 aBndBox.Enlarge(theEnlarge);
560 Standard_Real aXArr[2] = {aBndBox.CornerMin().X(), aBndBox.CornerMax().X()};
561 Standard_Real aYArr[2] = {aBndBox.CornerMin().Y(), aBndBox.CornerMax().Y()};
562 Standard_Real aZArr[2] = {aBndBox.CornerMin().Z(), aBndBox.CornerMax().Z()};
563 std::list<std::shared_ptr<GeomAPI_Pnt> > aResultPoints;
565 for(int i = 0; i < 2; i++) {
566 for(int j = 0; j < 2; j++) {
567 for(int k = 0; k < 2; k++) {
568 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aXArr[i], aYArr[j], aZArr[k]));
569 aResultPoints.push_back(aPnt);
574 return aResultPoints;
577 //==================================================================================================
578 std::shared_ptr<GeomAPI_Face> GeomAlgoAPI_ShapeTools::fitPlaneToBox(
579 const std::shared_ptr<GeomAPI_Shape> thePlane,
580 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints)
582 std::shared_ptr<GeomAPI_Face> aResultFace;
584 if(!thePlane.get()) {
588 const TopoDS_Shape& aShape = thePlane->impl<TopoDS_Shape>();
589 if(aShape.ShapeType() != TopAbs_FACE) {
593 TopoDS_Face aFace = TopoDS::Face(aShape);
594 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
599 GeomLib_IsPlanarSurface isPlanar(aSurf);
600 if(!isPlanar.IsPlanar()) {
604 if(thePoints.size() != 8) {
608 const gp_Pln& aFacePln = isPlanar.Plan();
609 Handle(Geom_Plane) aFacePlane = new Geom_Plane(aFacePln);
610 IntAna_Quadric aQuadric(aFacePln);
611 Standard_Real UMin, UMax, VMin, VMax;
612 UMin = UMax = VMin = VMax = 0;
613 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
614 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
615 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
616 gp_Lin aLin(aPnt, aFacePln.Axis().Direction());
617 IntAna_IntConicQuad anIntAna(aLin, aQuadric);
618 const gp_Pnt& aPntOnFace = anIntAna.Point(1);
619 Standard_Real aPntU(0), aPntV(0);
620 GeomLib_Tool::Parameters(aFacePlane, aPntOnFace, Precision::Confusion(), aPntU, aPntV);
621 if(aPntU < UMin) UMin = aPntU;
622 if(aPntU > UMax) UMax = aPntU;
623 if(aPntV < VMin) VMin = aPntV;
624 if(aPntV > VMax) VMax = aPntV;
626 aResultFace.reset(new GeomAPI_Face());
627 aResultFace->setImpl(new TopoDS_Face(BRepLib_MakeFace(aFacePln, UMin, UMax, VMin, VMax).Face()));
632 //==================================================================================================
633 void GeomAlgoAPI_ShapeTools::findBounds(const std::shared_ptr<GeomAPI_Shape> theShape,
634 std::shared_ptr<GeomAPI_Vertex>& theV1,
635 std::shared_ptr<GeomAPI_Vertex>& theV2)
637 static GeomVertexPtr aVertex;
639 aVertex = GeomVertexPtr(new GeomAPI_Vertex);
640 aVertex->setImpl(new TopoDS_Vertex());
647 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
648 TopoDS_Vertex aV1, aV2;
649 ShapeAnalysis::FindBounds(aShape, aV1, aV2);
651 std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
652 aGeomV1->setImpl(new TopoDS_Vertex(aV1));
653 aGeomV2->setImpl(new TopoDS_Vertex(aV2));
659 //==================================================================================================
660 void GeomAlgoAPI_ShapeTools::makeFacesWithHoles(const std::shared_ptr<GeomAPI_Pnt> theOrigin,
661 const std::shared_ptr<GeomAPI_Dir> theDirection,
662 const ListOfShape& theWires,
663 ListOfShape& theFaces)
665 BRepBuilderAPI_MakeFace aMKFace(gp_Pln(theOrigin->impl<gp_Pnt>(),
666 theDirection->impl<gp_Dir>()));
667 TopoDS_Face aFace = aMKFace.Face();
669 BRepAlgo_FaceRestrictor aFRestrictor;
670 aFRestrictor.Init(aFace, Standard_False, Standard_True);
671 for(ListOfShape::const_iterator anIt = theWires.cbegin();
672 anIt != theWires.cend();
674 TopoDS_Wire aWire = TopoDS::Wire((*anIt)->impl<TopoDS_Shape>());
675 aFRestrictor.Add(aWire);
678 aFRestrictor.Perform();
680 if(!aFRestrictor.IsDone()) {
684 for(; aFRestrictor.More(); aFRestrictor.Next()) {
685 GeomShapePtr aShape(new GeomAPI_Shape());
686 aShape->setImpl(new TopoDS_Shape(aFRestrictor.Current()));
687 theFaces.push_back(aShape);
691 //==================================================================================================
692 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_ShapeTools::findPlane(const ListOfShape& theShapes)
694 TopoDS_Compound aCompound;
695 BRep_Builder aBuilder;
696 aBuilder.MakeCompound(aCompound);
698 for(ListOfShape::const_iterator anIt = theShapes.cbegin(); anIt != theShapes.cend(); ++anIt) {
699 aBuilder.Add(aCompound, (*anIt)->impl<TopoDS_Shape>());
701 BRepBuilderAPI_FindPlane aFindPlane(aCompound);
703 if(aFindPlane.Found() != Standard_True) {
704 return std::shared_ptr<GeomAPI_Pln>();
707 Handle(Geom_Plane) aPlane = aFindPlane.Plane();
708 gp_Pnt aLoc = aPlane->Location();
709 gp_Dir aDir = aPlane->Axis().Direction();
711 std::shared_ptr<GeomAPI_Pnt> aGeomPnt(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
712 std::shared_ptr<GeomAPI_Dir> aGeomDir(new GeomAPI_Dir(aDir.X(), aDir.Y(), aDir.Z()));
714 std::shared_ptr<GeomAPI_Pln> aPln(new GeomAPI_Pln(aGeomPnt, aGeomDir));
719 //==================================================================================================
720 bool GeomAlgoAPI_ShapeTools::isSubShapeInsideShape(
721 const std::shared_ptr<GeomAPI_Shape> theSubShape,
722 const std::shared_ptr<GeomAPI_Shape> theBaseShape)
724 if(!theSubShape.get() || !theBaseShape.get()) {
728 const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
729 const TopoDS_Shape& aBaseShape = theBaseShape->impl<TopoDS_Shape>();
731 if(aSubShape.ShapeType() == TopAbs_VERTEX) {
732 // If sub-shape is a vertex check distance to shape. If it is <= Precision::Confusion() then OK.
733 BRepExtrema_DistShapeShape aDist(aBaseShape, aSubShape);
735 if(!aDist.IsDone() || aDist.Value() > Precision::Confusion()) {
738 } else if (aSubShape.ShapeType() == TopAbs_EDGE) {
739 if(aBaseShape.ShapeType() == TopAbs_FACE) {
740 // Check that edge is on face surface.
741 TopoDS_Face aFace = TopoDS::Face(aBaseShape);
742 TopoDS_Edge anEdge = TopoDS::Edge(aSubShape);
743 BRepLib_CheckCurveOnSurface aCheck(anEdge, aFace);
745 if(!aCheck.IsDone() || aCheck.MaxDistance() > Precision::Confusion()) {
749 // Check intersections.
750 TopoDS_Vertex aV1, aV2;
751 ShapeAnalysis::FindBounds(anEdge, aV1, aV2);
752 gp_Pnt aPnt1 = BRep_Tool::Pnt(aV1);
753 gp_Pnt aPnt2 = BRep_Tool::Pnt(aV2);
754 for(TopExp_Explorer anExp(aBaseShape, TopAbs_EDGE); anExp.More(); anExp.Next()) {
755 const TopoDS_Shape& anEdgeOnFace = anExp.Current();
756 BRepExtrema_DistShapeShape aDist(anEdgeOnFace, anEdge);
758 if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
759 // Edge intersect face bound. Check that it is not on edge begin or end.
760 for(Standard_Integer anIndex = 1; anIndex <= aDist.NbSolution(); ++anIndex) {
761 gp_Pnt aPntOnSubShape = aDist.PointOnShape2(anIndex);
762 if(aPntOnSubShape.Distance(aPnt1) > Precision::Confusion()
763 && aPntOnSubShape.Distance(aPnt2) > Precision::Confusion()) {
770 // No intersections found. Edge is inside or outside face. Check it.
771 BRepAdaptor_Curve aCurveAdaptor(anEdge);
772 gp_Pnt aPointToCheck =
773 aCurveAdaptor.Value((aCurveAdaptor.FirstParameter() +
774 aCurveAdaptor.LastParameter()) / 2.0);
775 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(aFace);
776 ShapeAnalysis_Surface aSAS(aSurface);
777 gp_Pnt2d aPointOnFace = aSAS.ValueOfUV(aPointToCheck, Precision::Confusion());
778 BRepTopAdaptor_FClass2d aFClass2d(aFace, Precision::Confusion());
779 if(aFClass2d.Perform(aPointOnFace) == TopAbs_OUT) {
793 //==================================================================================================
794 bool GeomAlgoAPI_ShapeTools::isShapeValid(const std::shared_ptr<GeomAPI_Shape> theShape)
796 if(!theShape.get()) {
800 BRepCheck_Analyzer aChecker(theShape->impl<TopoDS_Shape>());
801 return (aChecker.IsValid() == Standard_True);
804 //==================================================================================================
805 std::shared_ptr<GeomAPI_Shape>
806 GeomAlgoAPI_ShapeTools::getFaceOuterWire(const std::shared_ptr<GeomAPI_Shape> theFace)
808 GeomShapePtr anOuterWire;
810 if(!theFace.get() || !theFace->isFace()) {
814 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
815 TopoDS_Wire aWire = BRepTools::OuterWire(aFace);
817 anOuterWire.reset(new GeomAPI_Shape());
818 anOuterWire->setImpl(new TopoDS_Shape(aWire));
823 //==================================================================================================
824 bool GeomAlgoAPI_ShapeTools::isParallel(const std::shared_ptr<GeomAPI_Edge> theEdge,
825 const std::shared_ptr<GeomAPI_Face> theFace)
827 if(!theEdge.get() || !theFace.get()) {
831 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
832 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
834 BRepExtrema_ExtCF anExt(anEdge, aFace);
835 return anExt.IsParallel() == Standard_True;
838 //==================================================================================================
839 std::list<std::shared_ptr<GeomAPI_Vertex> > GeomAlgoAPI_ShapeTools::intersect(
840 const std::shared_ptr<GeomAPI_Edge> theEdge, const std::shared_ptr<GeomAPI_Face> theFace,
841 const bool thePointsOutsideFace)
843 std::list<std::shared_ptr<GeomAPI_Vertex> > aResult;
844 if(!theEdge.get() || !theFace.get()) {
848 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
849 double aFirstOnCurve, aLastOnCurve;
850 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirstOnCurve, aLastOnCurve);
852 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
853 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
855 GeomAPI_IntCS anIntAlgo(aCurve, aSurf);
856 if (!anIntAlgo.IsDone())
858 // searching for points-intersection
859 for(int anIntNum = 1; anIntNum <= anIntAlgo.NbPoints() + anIntAlgo.NbSegments(); anIntNum++) {
861 if (anIntNum <= anIntAlgo.NbPoints()) {
862 anInt = anIntAlgo.Point(anIntNum);
863 } else { // take the middle point on the segment of the intersection
864 Handle(Geom_Curve) anIntCurve = anIntAlgo.Segment(anIntNum - anIntAlgo.NbPoints());
865 anIntCurve->D0((anIntCurve->FirstParameter() + anIntCurve->LastParameter()) / 2., anInt);
867 aResult.push_back(std::shared_ptr<GeomAPI_Vertex>(
868 new GeomAPI_Vertex(anInt.X(), anInt.Y(), anInt.Z())));
873 //==================================================================================================
874 void GeomAlgoAPI_ShapeTools::splitShape(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
875 const GeomAlgoAPI_ShapeTools::PointToRefsMap& thePointsInfo,
876 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
878 // to split shape at least one point should be presented in the points container
879 if (thePointsInfo.empty())
882 // General Fuse to split edge by vertices
883 BOPAlgo_Builder aBOP;
884 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
885 // Rebuild closed edge to place vertex to one of split points.
886 // This will prevent edge to be split on same vertex.
887 if (BRep_Tool::IsClosed(aBaseEdge))
889 Standard_Real aFirst, aLast;
890 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
892 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
893 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
894 gp_Pnt aPoint(aPnt->x(), aPnt->y(), aPnt->z());
896 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
897 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
898 aBaseEdge.Orientation(anOrientation);
900 aBOP.AddArgument(aBaseEdge);
902 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
903 for (; aPIt != thePointsInfo.end(); ++aPIt) {
904 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
905 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
906 aBOP.AddArgument(aV);
910 if (aBOP.HasErrors())
914 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
915 TopTools_ListIteratorOfListOfShape anIt(aSplits);
916 for (; anIt.More(); anIt.Next()) {
917 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
918 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
919 theShapes.insert(anEdge);
923 //==================================================================================================
924 void GeomAlgoAPI_ShapeTools::splitShape_p(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
925 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
926 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
928 // General Fuse to split edge by vertices
929 BOPAlgo_Builder aBOP;
930 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
931 // Rebuild closed edge to place vertex to one of split points.
932 // This will prevent edge to be split on seam vertex.
933 if (BRep_Tool::IsClosed(aBaseEdge))
935 Standard_Real aFirst, aLast;
936 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
938 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPIt = thePoints.begin();
939 gp_Pnt aPoint((*aPIt)->x(), (*aPIt)->y(), (*aPIt)->z());
941 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
942 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
943 aBaseEdge.Orientation(anOrientation);
945 aBOP.AddArgument(aBaseEdge);
947 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPtIt = thePoints.begin();
948 for (; aPtIt != thePoints.end(); ++aPtIt) {
949 std::shared_ptr<GeomAPI_Pnt> aPnt = *aPtIt;
950 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
951 aBOP.AddArgument(aV);
955 if (aBOP.HasErrors())
959 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
960 TopTools_ListIteratorOfListOfShape anIt(aSplits);
961 for (; anIt.More(); anIt.Next()) {
962 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
963 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
964 theShapes.insert(anEdge);
968 //==================================================================================================
969 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::findShape(
970 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
971 const std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
973 std::shared_ptr<GeomAPI_Shape> aResultShape;
975 if (thePoints.size() == 2) {
976 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPntIt = thePoints.begin();
977 std::shared_ptr<GeomAPI_Pnt> aFirstPoint = *aPntIt;
979 std::shared_ptr<GeomAPI_Pnt> aLastPoint = *aPntIt;
981 std::set<std::shared_ptr<GeomAPI_Shape> >::const_iterator anIt = theShapes.begin(),
982 aLast = theShapes.end();
983 for (; anIt != aLast; anIt++) {
984 GeomShapePtr aShape = *anIt;
985 std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aShape));
987 std::shared_ptr<GeomAPI_Pnt> anEdgeFirstPoint = anEdge->firstPoint();
988 std::shared_ptr<GeomAPI_Pnt> anEdgeLastPoint = anEdge->lastPoint();
989 if (anEdgeFirstPoint->isEqual(aFirstPoint) &&
990 anEdgeLastPoint->isEqual(aLastPoint))
991 aResultShape = aShape;
999 //==================================================================================================
1000 #ifdef FEATURE_MULTIROTATION_TWO_DIRECTIONS
1001 std::shared_ptr<GeomAPI_Dir> GeomAlgoAPI_ShapeTools::buildDirFromAxisAndShape(
1002 const std::shared_ptr<GeomAPI_Shape> theBaseShape,
1003 const std::shared_ptr<GeomAPI_Ax1> theAxis)
1005 gp_Pnt aCentreOfMassPoint =
1006 GeomAlgoAPI_ShapeTools::centreOfMass(theBaseShape)->impl<gp_Pnt>();
1007 Handle(Geom_Line) aLine = new Geom_Line(theAxis->impl<gp_Ax1>());
1008 GeomAPI_ProjectPointOnCurve aPrjTool(aCentreOfMassPoint, aLine);
1009 gp_Pnt aPoint = aPrjTool.NearestPoint();
1011 std::shared_ptr<GeomAPI_Dir> aDir(new GeomAPI_Dir(aCentreOfMassPoint.X()-aPoint.X(),
1012 aCentreOfMassPoint.Y()-aPoint.Y(),
1013 aCentreOfMassPoint.Z()-aPoint.Z()));
1018 //==================================================================================================
1019 static TopoDS_Wire fixParametricGaps(const TopoDS_Wire& theWire)
1021 TopoDS_Wire aFixedWire;
1022 Handle(Geom_Curve) aPrevCurve;
1023 double aPrevLastParam = 0.0;
1025 BRep_Builder aBuilder;
1026 aBuilder.MakeWire(aFixedWire);
1028 BRepTools_WireExplorer aWExp(theWire);
1029 for (; aWExp.More(); aWExp.Next()) {
1030 TopoDS_Edge anEdge = aWExp.Current();
1031 double aFirst, aLast;
1032 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
1033 if (aCurve == aPrevCurve) {
1034 // if parametric gap occurs, create new edge based on the copied curve
1035 aCurve = Handle(Geom_Curve)::DownCast(aCurve->Copy());
1036 TopoDS_Vertex aV1, aV2;
1037 TopExp::Vertices(anEdge, aV1, aV2);
1038 anEdge = TopoDS::Edge(anEdge.EmptyCopied());
1039 aBuilder.UpdateEdge(anEdge, aCurve, BRep_Tool::Tolerance(anEdge));
1040 aBuilder.Add(anEdge, aV1);
1041 aBuilder.Add(anEdge, aV2);
1044 aBuilder.Add(aFixedWire, anEdge);
1046 aPrevCurve = aCurve;
1047 aPrevLastParam = aLast;
1053 std::shared_ptr<GeomAPI_Edge> GeomAlgoAPI_ShapeTools::wireToEdge(
1054 const std::shared_ptr<GeomAPI_Wire>& theWire)
1058 TopoDS_Wire aWire = theWire->impl<TopoDS_Wire>();
1059 // Workaround: when concatenate a wire consisting of two edges based on the same B-spline curve
1060 // (non-periodic, but having equal start and end points), first of which is placed at the end
1061 // on the curve and second is placed at the start, this workaround copies second curve to avoid
1062 // treating these edges as a single curve by setting trim parameters.
1063 aWire = fixParametricGaps(aWire);
1064 TopoDS_Edge aNewEdge = BRepAlgo::ConcatenateWireC0(aWire);
1065 anEdge = GeomEdgePtr(new GeomAPI_Edge);
1066 anEdge->setImpl(new TopoDS_Edge(aNewEdge));
1071 ListOfShape GeomAlgoAPI_ShapeTools::getLowLevelSubShapes(const GeomShapePtr& theShape)
1073 ListOfShape aSubShapes;
1075 if (!theShape->isCompound() && !theShape->isCompSolid() &&
1076 !theShape->isShell() && !theShape->isWire()) {
1080 for (GeomAPI_ShapeIterator anIt(theShape); anIt.more(); anIt.next()) {
1081 GeomShapePtr aSubShape = anIt.current();
1082 if (aSubShape->isVertex() || aSubShape->isEdge() ||
1083 aSubShape->isFace() || aSubShape->isSolid()) {
1084 aSubShapes.push_back(aSubShape);
1086 aSubShapes.splice(aSubShapes.end(), getLowLevelSubShapes(aSubShape));