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_Copy.hxx>
41 #include <BRepBuilderAPI_FindPlane.hxx>
42 #include <BRepBuilderAPI_MakeEdge.hxx>
43 #include <BRepBuilderAPI_MakeFace.hxx>
44 #include <BRepBuilderAPI_MakeVertex.hxx>
45 #include <BRepBuilderAPI_MakeWire.hxx>
46 #include <BRepCheck_Analyzer.hxx>
47 #include <BRepExtrema_DistShapeShape.hxx>
48 #include <BRepExtrema_ExtCF.hxx>
49 #include <BRepGProp.hxx>
50 #include <BRepTools.hxx>
51 #include <BRepTools_WireExplorer.hxx>
52 #include <BRepTopAdaptor_FClass2d.hxx>
53 #include <BRepClass_FaceClassifier.hxx>
54 #include <BRepLib_CheckCurveOnSurface.hxx>
55 #include <BRepLProp.hxx>
57 #include <BOPAlgo_Builder.hxx>
59 #include <Geom2d_Curve.hxx>
60 #include <Geom2d_Curve.hxx>
62 #include <Geom_CylindricalSurface.hxx>
63 #include <Geom_Line.hxx>
64 #include <Geom_Plane.hxx>
65 #include <Geom_RectangularTrimmedSurface.hxx>
67 #include <GeomAPI_ProjectPointOnCurve.hxx>
68 #include <GeomAPI_ShapeIterator.h>
70 #include <GeomLib_IsPlanarSurface.hxx>
71 #include <GeomLib_Tool.hxx>
72 #include <GeomAPI_IntCS.hxx>
75 #include <GProp_GProps.hxx>
77 #include <IntAna_IntConicQuad.hxx>
78 #include <IntAna_Quadric.hxx>
80 #include <ShapeAnalysis.hxx>
81 #include <ShapeAnalysis_Surface.hxx>
84 #include <TopoDS_Edge.hxx>
85 #include <TopoDS_Face.hxx>
86 #include <TopoDS_Shape.hxx>
87 #include <TopoDS_Shell.hxx>
88 #include <TopoDS_Vertex.hxx>
89 #include <TopoDS_Builder.hxx>
92 #include <TopExp_Explorer.hxx>
94 #include <TopTools_ListIteratorOfListOfShape.hxx>
96 #include <NCollection_Vector.hxx>
98 //==================================================================================================
99 static GProp_GProps props(const TopoDS_Shape& theShape)
101 GProp_GProps aGProps;
103 if (theShape.ShapeType() == TopAbs_EDGE || theShape.ShapeType() == TopAbs_WIRE)
105 BRepGProp::LinearProperties(theShape, aGProps);
107 else if (theShape.ShapeType() == TopAbs_FACE || theShape.ShapeType() == TopAbs_SHELL)
109 const Standard_Real anEps = 1.e-6;
110 BRepGProp::SurfaceProperties(theShape, aGProps, anEps);
112 else if (theShape.ShapeType() == TopAbs_SOLID || theShape.ShapeType() == TopAbs_COMPSOLID)
114 BRepGProp::VolumeProperties(theShape, aGProps);
116 else if (theShape.ShapeType() == TopAbs_COMPOUND)
118 for (TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next())
120 aGProps.Add(props(anIt.Value()));
127 //==================================================================================================
128 double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theShape)
130 if(!theShape.get()) {
133 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
134 if(aShape.IsNull()) {
137 const Standard_Real anEps = 1.e-6;
138 TopExp_Explorer anExp(aShape, TopAbs_SOLID);
139 if (anExp.More()) { // return volume if there is at least one solid
140 double aVolume = 0.0;
141 for (; anExp.More(); anExp.Next()) {
142 GProp_GProps aGProps;
143 BRepGProp::VolumeProperties(anExp.Current(), aGProps, anEps);
144 aVolume += aGProps.Mass();
148 // return surfaces area
149 GProp_GProps aGProps;
150 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
151 return aGProps.Mass();
154 //==================================================================================================
155 double GeomAlgoAPI_ShapeTools::area (const std::shared_ptr<GeomAPI_Shape> theShape)
157 GProp_GProps aGProps;
158 if(!theShape.get()) {
161 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
162 if(aShape.IsNull()) {
165 const Standard_Real anEps = 1.e-6;
167 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
168 return aGProps.Mass();
171 //==================================================================================================
172 std::shared_ptr<GeomAPI_Pnt>
173 GeomAlgoAPI_ShapeTools::centreOfMass(const std::shared_ptr<GeomAPI_Shape> theShape)
175 GProp_GProps aGProps;
177 return std::shared_ptr<GeomAPI_Pnt>();
179 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
180 if(aShape.IsNull()) {
181 return std::shared_ptr<GeomAPI_Pnt>();
184 if(aShape.ShapeType() == TopAbs_VERTEX) {
185 aCentre = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
187 aGProps = props(aShape);
188 aCentre = aGProps.CentreOfMass();
191 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aCentre.X(), aCentre.Y(), aCentre.Z()));
194 //==================================================================================================
195 double GeomAlgoAPI_ShapeTools::radius(const std::shared_ptr<GeomAPI_Face>& theCylinder)
197 double aRadius = -1.0;
198 if (theCylinder->isCylindrical()) {
199 const TopoDS_Shape& aShape = theCylinder->impl<TopoDS_Shape>();
200 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(TopoDS::Face(aShape));
201 Handle(Geom_CylindricalSurface) aCyl = Handle(Geom_CylindricalSurface)::DownCast(aSurf);
203 aRadius = aCyl->Radius();
208 //==================================================================================================
209 double GeomAlgoAPI_ShapeTools::minimalDistance(const GeomShapePtr& theShape1,
210 const GeomShapePtr& theShape2)
212 const TopoDS_Shape& aShape1 = theShape1->impl<TopoDS_Shape>();
213 const TopoDS_Shape& aShape2 = theShape2->impl<TopoDS_Shape>();
215 BRepExtrema_DistShapeShape aDist(aShape1, aShape2);
217 return aDist.IsDone() ? aDist.Value() : Precision::Infinite();
220 //==================================================================================================
221 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
222 const std::shared_ptr<GeomAPI_Shape> theCompound,
223 const GeomAPI_Shape::ShapeType theType,
224 ListOfShape& theResuts)
227 ListOfShape aResCombinedShapes;
228 ListOfShape aResFreeShapes;
230 GeomShapePtr aResult = theCompound;
232 if(!theCompound.get()) {
236 if(theType != GeomAPI_Shape::SHELL && theType != GeomAPI_Shape::COMPSOLID) {
240 TopAbs_ShapeEnum aTS = TopAbs_EDGE;
241 TopAbs_ShapeEnum aTA = TopAbs_FACE;
242 if(theType == GeomAPI_Shape::COMPSOLID) {
247 // map from the resulting shapes to minimal index of the used shape from theCompound list
248 std::map<GeomShapePtr, int> anInputOrder;
249 // map from ancestors-shapes to the index of shapes in theCompound
250 NCollection_DataMap<TopoDS_Shape, int> anAncestorsOrder;
254 const TopoDS_Shape& aShapesComp = theCompound->impl<TopoDS_Shape>();
255 for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next(), anOrder++) {
256 const TopoDS_Shape& aShape = anIter.Value();
257 if(aShape.ShapeType() > aTA) {
258 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
259 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
260 aResFreeShapes.push_back(aGeomShape);
261 anInputOrder[aGeomShape] = anOrder;
263 for(TopExp_Explorer anExp(aShape, aTA); anExp.More(); anExp.Next()) {
264 anAncestorsOrder.Bind(anExp.Current(), anOrder);
269 // Map sub-shapes and shapes.
270 TopTools_IndexedDataMapOfShapeListOfShape aMapSA;
271 TopExp::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
272 if(aMapSA.IsEmpty()) {
277 // Get all shapes with common sub-shapes and free shapes.
278 NCollection_Map<TopoDS_Shape> aFreeShapes;
279 NCollection_Vector<NCollection_Map<TopoDS_Shape>> aShapesWithCommonSubshapes;
280 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
281 anIter(aMapSA); anIter.More(); anIter.Next()) {
282 TopTools_ListOfShape& aListOfShape = anIter.ChangeValue();
283 if(aListOfShape.IsEmpty()) {
286 else if(aListOfShape.Size() == 1) {
287 const TopoDS_Shape& aF = aListOfShape.First();
289 aListOfShape.Clear();
291 NCollection_List<TopoDS_Shape> aTempList;
292 NCollection_Map<TopoDS_Shape> aTempMap;
293 for (TopTools_ListOfShape::Iterator aListIt(aListOfShape); aListIt.More(); aListIt.Next()) {
294 aTempList.Append(aListIt.Value());
295 aTempMap.Add(aListIt.Value());
296 aFreeShapes.Remove(aListIt.Value());
298 aListOfShape.Clear();
299 for(NCollection_List<TopoDS_Shape>::Iterator
300 aTempIter(aTempList); aTempIter.More(); aTempIter.Next()) {
301 const TopoDS_Shape& aTempShape = aTempIter.Value();
302 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
303 anIter2(aMapSA); anIter2.More(); anIter2.Next()) {
304 TopTools_ListOfShape& aTempListOfShape = anIter2.ChangeValue();
305 if(aTempListOfShape.IsEmpty()) {
307 } else if(aTempListOfShape.Size() == 1 && aTempListOfShape.First() == aTempShape) {
308 aTempListOfShape.Clear();
309 } else if(aTempListOfShape.Size() > 1) {
310 TopTools_ListOfShape::Iterator anIt1(aTempListOfShape);
311 for (; anIt1.More(); anIt1.Next()) {
312 if (anIt1.Value() == aTempShape) {
313 TopTools_ListOfShape::Iterator anIt2(aTempListOfShape);
314 for (; anIt2.More(); anIt2.Next())
316 if (anIt2.Value() != anIt1.Value()) {
317 if (aTempMap.Add(anIt2.Value())) {
318 aTempList.Append(anIt2.Value());
319 aFreeShapes.Remove(anIt2.Value());
323 aTempListOfShape.Clear();
330 aShapesWithCommonSubshapes.Append(aTempMap);
334 // Combine shapes with common sub-shapes.
335 for(NCollection_Vector<NCollection_Map<TopoDS_Shape>>::Iterator
336 anIter(aShapesWithCommonSubshapes); anIter.More(); anIter.Next()) {
338 TopoDS_CompSolid aCSolid;
339 TopoDS_Builder aBuilder;
342 GeomAPI_Shape::COMPSOLID ? aBuilder.MakeCompSolid(aCSolid) : aBuilder.MakeShell(aShell);
343 NCollection_Map<TopoDS_Shape>& aShapesMap = anIter.ChangeValue();
344 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
345 const TopoDS_Shape& aShape = anExp.Current();
346 if(aShapesMap.Contains(aShape)) {
348 GeomAPI_Shape::COMPSOLID ? aBuilder.Add(aCSolid, aShape) : aBuilder.Add(aShell, aShape);
349 aShapesMap.Remove(aShape);
350 int aThisOrder = anAncestorsOrder.Find(aShape);
351 if (anOrder == -1 || aThisOrder < anOrder)
352 anOrder = aThisOrder; // take the minimum order position
355 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
356 TopoDS_Shape* aSh = theType == GeomAPI_Shape::COMPSOLID ? new TopoDS_Shape(aCSolid) :
357 new TopoDS_Shape(aShell);
358 aGeomShape->setImpl<TopoDS_Shape>(aSh);
359 aResCombinedShapes.push_back(aGeomShape);
360 anInputOrder[aGeomShape] = anOrder;
363 // Adding free shapes.
364 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
365 const TopoDS_Shape& aShape = anExp.Current();
366 if(aFreeShapes.Contains(aShape)) {
367 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
368 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
369 aResFreeShapes.push_back(aGeomShape);
370 anInputOrder[aGeomShape] = anAncestorsOrder.Find(aShape);
374 if(aResCombinedShapes.size() == 1 && aResFreeShapes.size() == 0) {
375 aResult = aResCombinedShapes.front();
376 theResuts.push_back(aResult);
377 } else if(aResCombinedShapes.size() == 0 && aResFreeShapes.size() == 1) {
378 aResult = aResFreeShapes.front();
379 theResuts.push_back(aResult);
381 TopoDS_Compound aResultComp;
382 TopoDS_Builder aBuilder;
383 aBuilder.MakeCompound(aResultComp);
384 // put to result compound and result list in accordance to the order numbers
385 std::map<GeomShapePtr, int>::iterator anInputIter = anInputOrder.begin();
386 std::map<int, GeomShapePtr> aNums;
387 for(; anInputIter != anInputOrder.end(); anInputIter++)
388 aNums[anInputIter->second] = anInputIter->first;
389 std::map<int, GeomShapePtr>::iterator aNumsIter = aNums.begin();
390 for(; aNumsIter != aNums.end(); aNumsIter++) {
391 aBuilder.Add(aResultComp, (aNumsIter->second)->impl<TopoDS_Shape>());
392 theResuts.push_back(aNumsIter->second);
394 aResult->setImpl(new TopoDS_Shape(aResultComp));
400 //==================================================================================================
401 static void addSimpleShapeToList(const TopoDS_Shape& theShape,
402 NCollection_List<TopoDS_Shape>& theList)
404 if(theShape.IsNull()) {
408 if(theShape.ShapeType() == TopAbs_COMPOUND) {
409 for(TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next()) {
410 addSimpleShapeToList(anIt.Value(), theList);
413 theList.Append(theShape);
417 //==================================================================================================
418 static TopoDS_Compound makeCompound(const NCollection_List<TopoDS_Shape> theShapes)
420 TopoDS_Compound aCompound;
422 BRep_Builder aBuilder;
423 aBuilder.MakeCompound(aCompound);
425 for(NCollection_List<TopoDS_Shape>::Iterator anIt(theShapes); anIt.More(); anIt.Next()) {
426 aBuilder.Add(aCompound, anIt.Value());
432 //==================================================================================================
433 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
434 const std::shared_ptr<GeomAPI_Shape> theCompound)
436 GeomShapePtr aResult = theCompound;
438 if (!theCompound.get()) {
442 TopoDS_Shape anInShape = aResult->impl<TopoDS_Shape>();
443 NCollection_List<TopoDS_Shape> anUngroupedShapes, aStillUngroupedShapes;
444 addSimpleShapeToList(anInShape, anUngroupedShapes);
446 // Iterate over all shapes and find shapes with shared vertices.
447 TopTools_ListOfShape allVertices;
448 TopTools_DataMapOfShapeListOfShape aVertexShapesMap;
449 for (NCollection_List<TopoDS_Shape>::Iterator aShapesIt(anUngroupedShapes);
452 const TopoDS_Shape& aShape = aShapesIt.Value();
453 for (TopExp_Explorer aShapeExp(aShape, TopAbs_VERTEX);
456 const TopoDS_Shape& aVertex = aShapeExp.Current();
457 if (!aVertexShapesMap.IsBound(aVertex)) {
458 NCollection_List<TopoDS_Shape> aList;
459 aList.Append(aShape);
460 allVertices.Append(aVertex);
461 aVertexShapesMap.Bind(aVertex, aList);
464 if (!aVertexShapesMap.ChangeFind(aVertex).Contains(aShape)) {
465 aVertexShapesMap.ChangeFind(aVertex).Append(aShape);
471 // Iterate over the map and group shapes.
472 NCollection_Vector<TopTools_MapOfShape> aGroups; // groups of shapes connected by vertices
473 while (!allVertices.IsEmpty()) {
474 // Get first group of shapes in map, and then unbind it.
475 const TopoDS_Shape& aKey = allVertices.First();
476 TopTools_ListOfShape aConnectedShapes = aVertexShapesMap.Find(aKey);
477 aVertexShapesMap.UnBind(aKey);
478 allVertices.Remove(aKey);
479 // Iterate over shapes in this group and add to it shapes from groups in map.
480 for (TopTools_ListOfShape::Iterator aConnectedIt(aConnectedShapes);
481 aConnectedIt.More(); aConnectedIt.Next()) {
482 const TopoDS_Shape& aConnected = aConnectedIt.Value();
483 TopTools_ListOfShape aKeysToUnbind;
484 for (TopTools_ListOfShape::Iterator aKeysIt(allVertices);
487 const TopTools_ListOfShape& anOtherConnected = aVertexShapesMap(aKeysIt.Value());
488 if (!anOtherConnected.Contains(aConnected)) {
489 // Other connected group does not contain shape from our connected group
492 // Other is connected to our, so add them to our connected
493 for (TopTools_ListOfShape::Iterator anOtherIt(anOtherConnected);
496 const TopoDS_Shape& aShape = anOtherIt.Value();
497 if (!aConnectedShapes.Contains(aShape)) {
498 aConnectedShapes.Append(aShape);
501 // Save key to unbind from this map.
502 aKeysToUnbind.Append(aKeysIt.Value());
504 // Unbind groups from map that we added to our group.
505 for (TopTools_ListOfShape::Iterator aKeysIt(aKeysToUnbind);
508 aVertexShapesMap.UnBind(aKeysIt.Value());
509 allVertices.Remove(aKeysIt.Value());
512 // Sort shapes from the most complicated to the simplest ones
513 TopTools_MapOfShape aSortedGroup;
514 for (int aST = TopAbs_COMPOUND; aST <= TopAbs_SHAPE; ++aST) {
515 TopTools_ListOfShape::Iterator anIt(aConnectedShapes);
516 while (anIt.More()) {
517 if (anIt.Value().ShapeType() == aST) {
518 aSortedGroup.Add(anIt.Value());
519 aConnectedShapes.Remove(anIt);
526 aGroups.Append(aSortedGroup);
529 TopoDS_Compound aCompound;
530 BRep_Builder aBuilder;
531 aBuilder.MakeCompound(aCompound);
533 for (NCollection_Vector<TopTools_MapOfShape>::Iterator anIt(aGroups); anIt.More(); anIt.Next()) {
534 const TopTools_MapOfShape& aGroup = anIt.ChangeValue();
535 GeomShapePtr aGeomShape(new GeomAPI_Shape());
536 if(aGroup.Size() == 1) {
537 TopTools_MapOfShape::Iterator aOneShapeIter(aGroup);
538 aGeomShape->setImpl(new TopoDS_Shape(aOneShapeIter.Value()));
540 // make sub-shapes in the group have order same as in original shape
541 TopTools_ListOfShape anOrderedGoup;
542 NCollection_List<TopoDS_Shape>::Iterator anUngrouped(anUngroupedShapes);
543 for (; anUngrouped.More(); anUngrouped.Next()) {
544 if (aGroup.Contains(anUngrouped.Value()))
545 anOrderedGoup.Append(anUngrouped.Value());
547 aGeomShape->setImpl(new TopoDS_Shape(makeCompound(anOrderedGoup)));
548 aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
549 GeomAPI_Shape::COMPSOLID,
552 aBuilder.Add(aCompound, aGeomShape->impl<TopoDS_Shape>());
555 if(!aCompound.IsNull()) {
556 aResult->setImpl(new TopoDS_Shape(aCompound));
562 //==================================================================================================
563 bool GeomAlgoAPI_ShapeTools::hasSharedTopology(const ListOfShape& theShapes,
564 const GeomAPI_Shape::ShapeType theShapeType)
566 TopTools_IndexedMapOfShape aSubs;
567 for (ListOfShape::const_iterator anIt = theShapes.begin(); anIt != theShapes.end(); ++anIt) {
568 TopTools_IndexedMapOfShape aCurSubs;
569 TopExp::MapShapes((*anIt)->impl<TopoDS_Shape>(), (TopAbs_ShapeEnum)theShapeType, aCurSubs);
570 for (TopTools_IndexedMapOfShape::Iterator aSubIt(aCurSubs); aSubIt.More(); aSubIt.Next()) {
571 if (aSubs.Contains(aSubIt.Value()))
574 aSubs.Add(aSubIt.Value());
580 //==================================================================================================
581 std::list<std::shared_ptr<GeomAPI_Pnt> >
582 GeomAlgoAPI_ShapeTools::getBoundingBox(const ListOfShape& theShapes, const double theEnlarge)
584 // Bounding box of all objects.
588 for (ListOfShape::const_iterator
589 anObjectsIt = theShapes.begin(); anObjectsIt != theShapes.end(); anObjectsIt++) {
590 const TopoDS_Shape& aShape = (*anObjectsIt)->impl<TopoDS_Shape>();
591 BRepBndLib::Add(aShape, aBndBox);
594 if(theEnlarge != 0.0) {
595 // We enlarge bounding box just to be sure that plane will be large enough to cut all objects.
596 aBndBox.Enlarge(theEnlarge);
599 Standard_Real aXArr[2] = {aBndBox.CornerMin().X(), aBndBox.CornerMax().X()};
600 Standard_Real aYArr[2] = {aBndBox.CornerMin().Y(), aBndBox.CornerMax().Y()};
601 Standard_Real aZArr[2] = {aBndBox.CornerMin().Z(), aBndBox.CornerMax().Z()};
602 std::list<std::shared_ptr<GeomAPI_Pnt> > aResultPoints;
603 for(int i = 0; i < 2; i++) {
604 for(int j = 0; j < 2; j++) {
605 for(int k = 0; k < 2; k++) {
606 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aXArr[i], aYArr[j], aZArr[k]));
607 aResultPoints.push_back(aPnt);
612 return aResultPoints;
615 //==================================================================================================
616 std::shared_ptr<GeomAPI_Face> GeomAlgoAPI_ShapeTools::fitPlaneToBox(
617 const std::shared_ptr<GeomAPI_Shape> thePlane,
618 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints)
620 std::shared_ptr<GeomAPI_Face> aResultFace;
622 if(!thePlane.get()) {
626 const TopoDS_Shape& aShape = thePlane->impl<TopoDS_Shape>();
627 if(aShape.ShapeType() != TopAbs_FACE) {
631 TopoDS_Face aFace = TopoDS::Face(aShape);
632 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
637 GeomLib_IsPlanarSurface isPlanar(aSurf);
638 if(!isPlanar.IsPlanar()) {
642 if(thePoints.size() != 8) {
646 const gp_Pln& aFacePln = isPlanar.Plan();
647 Handle(Geom_Plane) aFacePlane = new Geom_Plane(aFacePln);
648 IntAna_Quadric aQuadric(aFacePln);
649 Standard_Real UMin, UMax, VMin, VMax;
650 UMin = UMax = VMin = VMax = 0;
651 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
652 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
653 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
654 gp_Lin aLin(aPnt, aFacePln.Axis().Direction());
655 IntAna_IntConicQuad anIntAna(aLin, aQuadric);
656 const gp_Pnt& aPntOnFace = anIntAna.Point(1);
657 Standard_Real aPntU(0), aPntV(0);
658 GeomLib_Tool::Parameters(aFacePlane, aPntOnFace, Precision::Confusion(), aPntU, aPntV);
659 if(aPntU < UMin) UMin = aPntU;
660 if(aPntU > UMax) UMax = aPntU;
661 if(aPntV < VMin) VMin = aPntV;
662 if(aPntV > VMax) VMax = aPntV;
664 aResultFace.reset(new GeomAPI_Face());
665 aResultFace->setImpl(new TopoDS_Face(BRepLib_MakeFace(aFacePln, UMin, UMax, VMin, VMax).Face()));
670 //==================================================================================================
671 void GeomAlgoAPI_ShapeTools::findBounds(const std::shared_ptr<GeomAPI_Shape> theShape,
672 std::shared_ptr<GeomAPI_Vertex>& theV1,
673 std::shared_ptr<GeomAPI_Vertex>& theV2)
675 static GeomVertexPtr aVertex;
677 aVertex = GeomVertexPtr(new GeomAPI_Vertex);
678 aVertex->setImpl(new TopoDS_Vertex());
685 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
686 TopoDS_Vertex aV1, aV2;
687 ShapeAnalysis::FindBounds(aShape, aV1, aV2);
689 std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
690 aGeomV1->setImpl(new TopoDS_Vertex(aV1));
691 aGeomV2->setImpl(new TopoDS_Vertex(aV2));
697 //==================================================================================================
698 void GeomAlgoAPI_ShapeTools::makeFacesWithHoles(const std::shared_ptr<GeomAPI_Pnt> theOrigin,
699 const std::shared_ptr<GeomAPI_Dir> theDirection,
700 const ListOfShape& theWires,
701 ListOfShape& theFaces)
703 BRepBuilderAPI_MakeFace aMKFace(gp_Pln(theOrigin->impl<gp_Pnt>(),
704 theDirection->impl<gp_Dir>()));
705 TopoDS_Face aFace = aMKFace.Face();
707 BRepAlgo_FaceRestrictor aFRestrictor;
708 aFRestrictor.Init(aFace, Standard_False, Standard_True);
709 for(ListOfShape::const_iterator anIt = theWires.cbegin();
710 anIt != theWires.cend();
712 TopoDS_Wire aWire = TopoDS::Wire((*anIt)->impl<TopoDS_Shape>());
713 aFRestrictor.Add(aWire);
716 aFRestrictor.Perform();
718 if(!aFRestrictor.IsDone()) {
722 for(; aFRestrictor.More(); aFRestrictor.Next()) {
723 GeomShapePtr aShape(new GeomAPI_Shape());
724 aShape->setImpl(new TopoDS_Shape(aFRestrictor.Current()));
725 theFaces.push_back(aShape);
729 //==================================================================================================
730 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_ShapeTools::findPlane(const ListOfShape& theShapes)
732 TopoDS_Compound aCompound;
733 BRep_Builder aBuilder;
734 aBuilder.MakeCompound(aCompound);
736 for(ListOfShape::const_iterator anIt = theShapes.cbegin(); anIt != theShapes.cend(); ++anIt) {
737 aBuilder.Add(aCompound, (*anIt)->impl<TopoDS_Shape>());
739 BRepBuilderAPI_FindPlane aFindPlane(aCompound);
741 if(aFindPlane.Found() != Standard_True) {
742 return std::shared_ptr<GeomAPI_Pln>();
745 Handle(Geom_Plane) aPlane = aFindPlane.Plane();
746 gp_Pnt aLoc = aPlane->Location();
747 gp_Dir aDir = aPlane->Axis().Direction();
749 std::shared_ptr<GeomAPI_Pnt> aGeomPnt(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
750 std::shared_ptr<GeomAPI_Dir> aGeomDir(new GeomAPI_Dir(aDir.X(), aDir.Y(), aDir.Z()));
752 std::shared_ptr<GeomAPI_Pln> aPln(new GeomAPI_Pln(aGeomPnt, aGeomDir));
757 //==================================================================================================
758 bool GeomAlgoAPI_ShapeTools::isSubShapeInsideShape(
759 const std::shared_ptr<GeomAPI_Shape> theSubShape,
760 const std::shared_ptr<GeomAPI_Shape> theBaseShape)
762 if(!theSubShape.get() || !theBaseShape.get()) {
766 const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
767 const TopoDS_Shape& aBaseShape = theBaseShape->impl<TopoDS_Shape>();
769 if(aSubShape.ShapeType() == TopAbs_VERTEX) {
770 // If sub-shape is a vertex check distance to shape. If it is <= Precision::Confusion() then OK.
771 BRepExtrema_DistShapeShape aDist(aBaseShape, aSubShape);
773 if(!aDist.IsDone() || aDist.Value() > Precision::Confusion()) {
776 } else if (aSubShape.ShapeType() == TopAbs_EDGE) {
777 if(aBaseShape.ShapeType() == TopAbs_FACE) {
778 // Check that edge is on face surface.
779 TopoDS_Face aFace = TopoDS::Face(aBaseShape);
780 TopoDS_Edge anEdge = TopoDS::Edge(aSubShape);
781 BRepLib_CheckCurveOnSurface aCheck(anEdge, aFace);
783 if(!aCheck.IsDone() || aCheck.MaxDistance() > Precision::Confusion()) {
787 // Check intersections.
788 TopoDS_Vertex aV1, aV2;
789 ShapeAnalysis::FindBounds(anEdge, aV1, aV2);
790 gp_Pnt aPnt1 = BRep_Tool::Pnt(aV1);
791 gp_Pnt aPnt2 = BRep_Tool::Pnt(aV2);
792 for(TopExp_Explorer anExp(aBaseShape, TopAbs_EDGE); anExp.More(); anExp.Next()) {
793 const TopoDS_Shape& anEdgeOnFace = anExp.Current();
794 BRepExtrema_DistShapeShape aDist(anEdgeOnFace, anEdge);
796 if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
797 // Edge intersect face bound. Check that it is not on edge begin or end.
798 for(Standard_Integer anIndex = 1; anIndex <= aDist.NbSolution(); ++anIndex) {
799 gp_Pnt aPntOnSubShape = aDist.PointOnShape2(anIndex);
800 if(aPntOnSubShape.Distance(aPnt1) > Precision::Confusion()
801 && aPntOnSubShape.Distance(aPnt2) > Precision::Confusion()) {
808 // No intersections found. Edge is inside or outside face. Check it.
809 BRepAdaptor_Curve aCurveAdaptor(anEdge);
810 gp_Pnt aPointToCheck =
811 aCurveAdaptor.Value((aCurveAdaptor.FirstParameter() +
812 aCurveAdaptor.LastParameter()) / 2.0);
813 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(aFace);
814 ShapeAnalysis_Surface aSAS(aSurface);
815 gp_Pnt2d aPointOnFace = aSAS.ValueOfUV(aPointToCheck, Precision::Confusion());
816 BRepTopAdaptor_FClass2d aFClass2d(aFace, Precision::Confusion());
817 if(aFClass2d.Perform(aPointOnFace) == TopAbs_OUT) {
831 //==================================================================================================
832 bool GeomAlgoAPI_ShapeTools::isShapeValid(const std::shared_ptr<GeomAPI_Shape> theShape)
834 if(!theShape.get()) {
838 BRepCheck_Analyzer aChecker(theShape->impl<TopoDS_Shape>());
839 return (aChecker.IsValid() == Standard_True);
842 //==================================================================================================
843 std::shared_ptr<GeomAPI_Shape>
844 GeomAlgoAPI_ShapeTools::getFaceOuterWire(const std::shared_ptr<GeomAPI_Shape> theFace)
846 GeomShapePtr anOuterWire;
848 if(!theFace.get() || !theFace->isFace()) {
852 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
853 TopoDS_Wire aWire = BRepTools::OuterWire(aFace);
855 anOuterWire.reset(new GeomAPI_Shape());
856 anOuterWire->setImpl(new TopoDS_Shape(aWire));
861 //==================================================================================================
862 static bool boundaryOfEdge(const std::shared_ptr<GeomAPI_Edge> theEdge,
863 const std::shared_ptr<GeomAPI_Vertex> theVertex,
866 GeomPointPtr aPoint = theVertex->point();
867 GeomPointPtr aFirstPnt = theEdge->firstPoint();
868 double aFirstPntTol = theEdge->firstPointTolerance();
869 GeomPointPtr aLastPnt = theEdge->lastPoint();
870 double aLastPntTol = theEdge->lastPointTolerance();
872 double aFirst, aLast;
873 theEdge->getRange(aFirst, aLast);
875 bool isFirst = aPoint->distance(aFirstPnt) <= aFirstPntTol;
876 bool isLast = aPoint->distance(aLastPnt) <= aLastPntTol;
882 return isFirst != isLast;
885 bool GeomAlgoAPI_ShapeTools::isTangent(const std::shared_ptr<GeomAPI_Edge> theEdge1,
886 const std::shared_ptr<GeomAPI_Edge> theEdge2,
887 const std::shared_ptr<GeomAPI_Vertex> theTgPoint)
889 double aParE1 = 0, aParE2 = 0;
890 if (!boundaryOfEdge(theEdge1, theTgPoint, aParE1) ||
891 !boundaryOfEdge(theEdge2, theTgPoint, aParE2))
894 BRepAdaptor_Curve aC1(theEdge1->impl<TopoDS_Edge>());
895 BRepAdaptor_Curve aC2(theEdge2->impl<TopoDS_Edge>());
896 return BRepLProp::Continuity(aC1, aC2, aParE1, aParE2) >= GeomAbs_G1;
899 //==================================================================================================
900 bool GeomAlgoAPI_ShapeTools::isParallel(const std::shared_ptr<GeomAPI_Edge> theEdge,
901 const std::shared_ptr<GeomAPI_Face> theFace)
903 if(!theEdge.get() || !theFace.get()) {
907 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
908 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
910 BRepExtrema_ExtCF anExt(anEdge, aFace);
911 return anExt.IsParallel() == Standard_True;
914 //==================================================================================================
915 std::list<std::shared_ptr<GeomAPI_Vertex> > GeomAlgoAPI_ShapeTools::intersect(
916 const std::shared_ptr<GeomAPI_Edge> theEdge, const std::shared_ptr<GeomAPI_Face> theFace)
918 std::list<std::shared_ptr<GeomAPI_Vertex> > aResult;
919 if(!theEdge.get() || !theFace.get()) {
923 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
924 double aFirstOnCurve, aLastOnCurve;
925 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirstOnCurve, aLastOnCurve);
927 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
928 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
930 GeomAPI_IntCS anIntAlgo(aCurve, aSurf);
931 if (!anIntAlgo.IsDone())
933 // searching for points-intersection
934 for(int anIntNum = 1; anIntNum <= anIntAlgo.NbPoints() + anIntAlgo.NbSegments(); anIntNum++) {
936 if (anIntNum <= anIntAlgo.NbPoints()) {
937 anInt = anIntAlgo.Point(anIntNum);
938 } else { // take the middle point on the segment of the intersection
939 Handle(Geom_Curve) anIntCurve = anIntAlgo.Segment(anIntNum - anIntAlgo.NbPoints());
940 anIntCurve->D0((anIntCurve->FirstParameter() + anIntCurve->LastParameter()) / 2., anInt);
942 aResult.push_back(std::shared_ptr<GeomAPI_Vertex>(
943 new GeomAPI_Vertex(anInt.X(), anInt.Y(), anInt.Z())));
948 //==================================================================================================
949 void GeomAlgoAPI_ShapeTools::splitShape(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
950 const GeomAlgoAPI_ShapeTools::PointToRefsMap& thePointsInfo,
951 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
953 // to split shape at least one point should be presented in the points container
954 if (thePointsInfo.empty())
957 // General Fuse to split edge by vertices
958 BOPAlgo_Builder aBOP;
959 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
960 // Rebuild closed edge to place vertex to one of split points.
961 // This will prevent edge to be split on same vertex.
962 if (BRep_Tool::IsClosed(aBaseEdge))
964 Standard_Real aFirst, aLast;
965 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
967 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
968 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
969 gp_Pnt aPoint(aPnt->x(), aPnt->y(), aPnt->z());
971 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
972 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
973 aBaseEdge.Orientation(anOrientation);
975 aBOP.AddArgument(aBaseEdge);
977 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
978 for (; aPIt != thePointsInfo.end(); ++aPIt) {
979 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
980 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
981 aBOP.AddArgument(aV);
985 if (aBOP.HasErrors())
989 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
990 TopTools_ListIteratorOfListOfShape anIt(aSplits);
991 for (; anIt.More(); anIt.Next()) {
992 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
993 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
994 theShapes.insert(anEdge);
998 //==================================================================================================
999 void GeomAlgoAPI_ShapeTools::splitShape_p(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
1000 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1001 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
1003 // General Fuse to split edge by vertices
1004 BOPAlgo_Builder aBOP;
1005 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
1006 // Rebuild closed edge to place vertex to one of split points.
1007 // This will prevent edge to be split on seam vertex.
1008 if (BRep_Tool::IsClosed(aBaseEdge))
1010 Standard_Real aFirst, aLast;
1011 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
1013 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPIt = thePoints.begin();
1014 gp_Pnt aPoint((*aPIt)->x(), (*aPIt)->y(), (*aPIt)->z());
1016 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
1017 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
1018 aBaseEdge.Orientation(anOrientation);
1020 aBOP.AddArgument(aBaseEdge);
1022 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPtIt = thePoints.begin();
1023 for (; aPtIt != thePoints.end(); ++aPtIt) {
1024 std::shared_ptr<GeomAPI_Pnt> aPnt = *aPtIt;
1025 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
1026 aBOP.AddArgument(aV);
1030 if (aBOP.HasErrors())
1034 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
1035 TopTools_ListIteratorOfListOfShape anIt(aSplits);
1036 for (; anIt.More(); anIt.Next()) {
1037 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
1038 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
1039 theShapes.insert(anEdge);
1043 //==================================================================================================
1044 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::findShape(
1045 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1046 const std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
1048 std::shared_ptr<GeomAPI_Shape> aResultShape;
1050 if (thePoints.size() == 2) {
1051 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPntIt = thePoints.begin();
1052 std::shared_ptr<GeomAPI_Pnt> aFirstPoint = *aPntIt;
1054 std::shared_ptr<GeomAPI_Pnt> aLastPoint = *aPntIt;
1056 std::set<std::shared_ptr<GeomAPI_Shape> >::const_iterator anIt = theShapes.begin(),
1057 aLast = theShapes.end();
1058 for (; anIt != aLast; anIt++) {
1059 GeomShapePtr aShape = *anIt;
1060 std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aShape));
1062 std::shared_ptr<GeomAPI_Pnt> anEdgeFirstPoint = anEdge->firstPoint();
1063 std::shared_ptr<GeomAPI_Pnt> anEdgeLastPoint = anEdge->lastPoint();
1064 if (anEdgeFirstPoint->isEqual(aFirstPoint) &&
1065 anEdgeLastPoint->isEqual(aLastPoint))
1066 aResultShape = aShape;
1071 return aResultShape;
1074 //==================================================================================================
1075 #ifdef FEATURE_MULTIROTATION_TWO_DIRECTIONS
1076 std::shared_ptr<GeomAPI_Dir> GeomAlgoAPI_ShapeTools::buildDirFromAxisAndShape(
1077 const std::shared_ptr<GeomAPI_Shape> theBaseShape,
1078 const std::shared_ptr<GeomAPI_Ax1> theAxis)
1080 gp_Pnt aCentreOfMassPoint =
1081 GeomAlgoAPI_ShapeTools::centreOfMass(theBaseShape)->impl<gp_Pnt>();
1082 Handle(Geom_Line) aLine = new Geom_Line(theAxis->impl<gp_Ax1>());
1083 GeomAPI_ProjectPointOnCurve aPrjTool(aCentreOfMassPoint, aLine);
1084 gp_Pnt aPoint = aPrjTool.NearestPoint();
1086 std::shared_ptr<GeomAPI_Dir> aDir(new GeomAPI_Dir(aCentreOfMassPoint.X()-aPoint.X(),
1087 aCentreOfMassPoint.Y()-aPoint.Y(),
1088 aCentreOfMassPoint.Z()-aPoint.Z()));
1093 //==================================================================================================
1094 static TopoDS_Wire fixParametricGaps(const TopoDS_Wire& theWire)
1096 TopoDS_Wire aFixedWire;
1097 Handle(Geom_Curve) aPrevCurve;
1098 double aPrevLastParam = -Precision::Infinite();
1100 BRep_Builder aBuilder;
1101 aBuilder.MakeWire(aFixedWire);
1103 BRepTools_WireExplorer aWExp(theWire);
1104 for (; aWExp.More(); aWExp.Next()) {
1105 TopoDS_Edge anEdge = aWExp.Current();
1106 double aFirst, aLast;
1107 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
1108 if (aCurve == aPrevCurve && Abs(aFirst - aPrevLastParam) > Precision::Confusion()) {
1109 // if parametric gap occurs, create new edge based on the copied curve
1110 aCurve = Handle(Geom_Curve)::DownCast(aCurve->Copy());
1111 TopoDS_Vertex aV1, aV2;
1112 TopExp::Vertices(anEdge, aV1, aV2);
1113 anEdge = TopoDS::Edge(anEdge.EmptyCopied());
1114 aBuilder.UpdateEdge(anEdge, aCurve, BRep_Tool::Tolerance(anEdge));
1115 aBuilder.Add(anEdge, aV1);
1116 aBuilder.Add(anEdge, aV2);
1119 aBuilder.Add(aFixedWire, anEdge);
1121 aPrevCurve = aCurve;
1122 aPrevLastParam = aLast;
1128 //==================================================================================================
1129 std::shared_ptr<GeomAPI_Edge> GeomAlgoAPI_ShapeTools::wireToEdge(
1130 const std::shared_ptr<GeomAPI_Wire>& theWire)
1134 TopoDS_Wire aWire = theWire->impl<TopoDS_Wire>();
1135 BRepTools_WireExplorer aWExp(aWire);
1136 TopoDS_Edge aNewEdge = aWExp.Current();
1139 // Workaround for the closed wire to avoid jumping of its start point:
1140 // split this wire for two parts, convert them to edges, then compose together
1141 if (BRep_Tool::IsClosed(aWire)) {
1142 aWire = TopoDS::Wire(BRepBuilderAPI_Copy(aWire).Shape());
1144 aNewEdge = aWExp.Current();
1146 BRep_Builder().Remove(aWire, aNewEdge);
1147 GeomWirePtr aSplitWire(new GeomAPI_Wire);
1148 aSplitWire->setImpl(new TopoDS_Wire(aWire));
1149 GeomEdgePtr aMergedEdge = wireToEdge(aSplitWire);
1151 aWire = BRepBuilderAPI_MakeWire(aNewEdge, aMergedEdge->impl<TopoDS_Edge>());
1154 // Workaround: when concatenate a wire consisting of two edges based on the same B-spline
1155 // curve (non-periodic, but having equal start and end points), first of which is placed
1156 // at the end on the curve and second is placed at the start, this workaround copies
1157 // second curve to avoid treating these edges as a single curve by setting trim parameters.
1158 aWire = fixParametricGaps(aWire);
1159 aWire = BRepAlgo::ConcatenateWire(aWire, GeomAbs_G1); // join smooth parts of wire
1160 aNewEdge = BRepAlgo::ConcatenateWireC0(aWire); // join C0 parts of wire
1162 anEdge = GeomEdgePtr(new GeomAPI_Edge);
1163 anEdge->setImpl(new TopoDS_Edge(aNewEdge));
1168 //==================================================================================================
1169 ListOfShape GeomAlgoAPI_ShapeTools::getLowLevelSubShapes(const GeomShapePtr& theShape)
1171 ListOfShape aSubShapes;
1173 if (!theShape->isCompound() && !theShape->isCompSolid() &&
1174 !theShape->isShell() && !theShape->isWire()) {
1178 for (GeomAPI_ShapeIterator anIt(theShape); anIt.more(); anIt.next()) {
1179 GeomShapePtr aSubShape = anIt.current();
1180 if (aSubShape->isVertex() || aSubShape->isEdge() ||
1181 aSubShape->isFace() || aSubShape->isSolid()) {
1182 aSubShapes.push_back(aSubShape);
1184 aSubShapes.splice(aSubShapes.end(), getLowLevelSubShapes(aSubShape));
1191 //==================================================================================================
1192 static void getMinMaxPointsOnLine(const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1193 const gp_Dir theDir,
1194 double& theMin, double& theMax)
1196 theMin = RealLast();
1197 theMax = RealFirst();
1198 // Project bounding points on theDir
1199 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
1200 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
1201 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
1202 gp_Dir aPntDir (aPnt.XYZ());
1203 Standard_Real proj = (theDir*aPntDir) * aPnt.XYZ().Modulus();
1204 if (proj < theMin) theMin = proj;
1205 if (proj > theMax) theMax = proj;
1209 //==================================================================================================
1210 void GeomAlgoAPI_ShapeTools::computeThroughAll(const ListOfShape& theObjects,
1211 const ListOfShape& theBaseShapes,
1212 const std::shared_ptr<GeomAPI_Dir> theDir,
1213 double& theToSize, double& theFromSize)
1215 // Bounding box of objects
1216 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndObjs =
1217 GeomAlgoAPI_ShapeTools::getBoundingBox(theObjects);
1218 if (aBndObjs.size() != 8) {
1222 // the value to enlarge the bounding box of each object to make the extruded shape
1223 // a little bit larger than overall objects to get the correct result of Boolean CUT operation
1224 double anEnlargement = 0.1 * aBndObjs.front()->distance(aBndObjs.back());
1228 // One direction for all prisms
1229 gp_Dir aDir = theDir->impl<gp_Dir>();
1231 // Bounding box of the base
1232 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndBases =
1233 GeomAlgoAPI_ShapeTools::getBoundingBox(theBaseShapes);
1234 if (aBndBases.size() != 8) {
1239 Standard_Real lowBnd, upperBnd;
1240 getMinMaxPointsOnLine(aBndObjs, aDir, lowBnd, upperBnd);
1243 Standard_Real lowBase, upperBase;
1244 getMinMaxPointsOnLine(aBndBases, aDir, lowBase, upperBase);
1246 // ----------.-----.---------.--------------.-----------> theDir
1247 // lowBnd lowBase upperBase upperBnd
1249 theToSize = upperBnd - lowBase;
1250 theFromSize = upperBase - lowBnd;
1252 // Direction is a normal to each base shape (different normals to bases)
1253 // So we calculate own sizes for each base shape
1257 for (ListOfShape::const_iterator anIt = theBaseShapes.begin();
1258 anIt != theBaseShapes.end(); ++anIt) {
1259 const GeomShapePtr& aBaseShape_i = (*anIt);
1260 ListOfShape aBaseShapes_i;
1261 aBaseShapes_i.push_back(aBaseShape_i);
1263 // Bounding box of the base
1264 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndBases =
1265 GeomAlgoAPI_ShapeTools::getBoundingBox(aBaseShapes_i, anEnlargement);
1266 if (aBndBases.size() != 8) {
1270 // Direction (normal to aBaseShapes_i)
1271 // Code like in GeomAlgoAPI_Prism
1273 const TopoDS_Shape& aBaseShape = aBaseShape_i->impl<TopoDS_Shape>();
1274 BRepBuilderAPI_FindPlane aFindPlane(aBaseShape);
1275 if (aFindPlane.Found() == Standard_True) {
1276 Handle(Geom_Plane) aPlane;
1277 if (aBaseShape.ShapeType() == TopAbs_FACE || aBaseShape.ShapeType() == TopAbs_SHELL) {
1278 TopExp_Explorer anExp(aBaseShape, TopAbs_FACE);
1279 const TopoDS_Shape& aFace = anExp.Current();
1280 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(TopoDS::Face(aFace));
1281 if(aSurface->DynamicType() == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
1282 Handle(Geom_RectangularTrimmedSurface) aTrimSurface =
1283 Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
1284 aSurface = aTrimSurface->BasisSurface();
1286 if(aSurface->DynamicType() != STANDARD_TYPE(Geom_Plane)) {
1289 aPlane = Handle(Geom_Plane)::DownCast(aSurface);
1291 aPlane = aFindPlane.Plane();
1293 aDir = aPlane->Axis().Direction();
1299 Standard_Real lowBnd, upperBnd;
1300 getMinMaxPointsOnLine(aBndObjs, aDir, lowBnd, upperBnd);
1303 Standard_Real lowBase, upperBase;
1304 getMinMaxPointsOnLine(aBndBases, aDir, lowBase, upperBase);
1306 // ----------.-----.---------.--------------.-----------> theDir
1307 // lowBnd lowBase upperBase upperBnd
1309 double aToSize_i = upperBnd - lowBase;
1310 double aFromSize_i = upperBase - lowBnd;
1312 if (aToSize_i > theToSize) theToSize = aToSize_i;
1313 if (aFromSize_i > theFromSize) theFromSize = aFromSize_i;