1 // Copyright (C) 2014-2017 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
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
21 #include "GeomAlgoAPI_ShapeTools.h"
23 #include "GeomAlgoAPI_SketchBuilder.h"
25 #include <GeomAPI_Ax1.h>
26 #include <GeomAPI_Edge.h>
27 #include <GeomAPI_Dir.h>
28 #include <GeomAPI_Face.h>
29 #include <GeomAPI_Pln.h>
30 #include <GeomAPI_Pnt.h>
31 #include <GeomAPI_Wire.h>
33 #include <Bnd_Box.hxx>
34 #include <BRep_Builder.hxx>
35 #include <BRepAdaptor_Curve.hxx>
36 #include <BRepAlgo.hxx>
37 #include <BRepAlgo_FaceRestrictor.hxx>
38 #include <BRepBndLib.hxx>
39 #include <BRepBuilderAPI_FindPlane.hxx>
40 #include <BRepBuilderAPI_MakeEdge.hxx>
41 #include <BRepBuilderAPI_MakeFace.hxx>
42 #include <BRepCheck_Analyzer.hxx>
43 #include <BRepExtrema_DistShapeShape.hxx>
44 #include <BRepExtrema_ExtCF.hxx>
45 #include <BRepGProp.hxx>
46 #include <BRepTools.hxx>
47 #include <BRepTools_WireExplorer.hxx>
48 #include <BRepTopAdaptor_FClass2d.hxx>
49 #include <BRepClass_FaceClassifier.hxx>
50 #include <Geom2d_Curve.hxx>
51 #include <Geom2d_Curve.hxx>
52 #include <BRepLib_CheckCurveOnSurface.hxx>
53 #include <BRep_Tool.hxx>
54 #include <Geom_CylindricalSurface.hxx>
55 #include <Geom_Line.hxx>
56 #include <Geom_Plane.hxx>
57 #include <GeomAPI_ProjectPointOnCurve.hxx>
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& theCombinedShapes,
203 ListOfShape& theFreeShapes)
205 GeomShapePtr aResult = theCompound;
207 if(!theCompound.get()) {
211 if(theType != GeomAPI_Shape::SHELL && theType != GeomAPI_Shape::COMPSOLID) {
215 TopAbs_ShapeEnum aTS = TopAbs_EDGE;
216 TopAbs_ShapeEnum aTA = TopAbs_FACE;
217 if(theType == GeomAPI_Shape::COMPSOLID) {
222 theCombinedShapes.clear();
223 theFreeShapes.clear();
226 const TopoDS_Shape& aShapesComp = theCompound->impl<TopoDS_Shape>();
227 for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next() ) {
228 const TopoDS_Shape& aShape = anIter.Value();
229 if(aShape.ShapeType() > aTA) {
230 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
231 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
232 theFreeShapes.push_back(aGeomShape);
236 // Map subshapes and shapes.
237 TopTools_IndexedDataMapOfShapeListOfShape aMapSA;
238 TopExp::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
239 if(aMapSA.IsEmpty()) {
243 // Get all shapes with common subshapes and free shapes.
244 NCollection_Map<TopoDS_Shape> aFreeShapes;
245 NCollection_Vector<NCollection_Map<TopoDS_Shape>> aShapesWithCommonSubshapes;
246 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
247 anIter(aMapSA); anIter.More(); anIter.Next()) {
248 const TopoDS_Shape& aShape = anIter.Key();
249 TopTools_ListOfShape& aListOfShape = anIter.ChangeValue();
250 if(aListOfShape.IsEmpty()) {
253 else if(aListOfShape.Size() == 1) {
254 const TopoDS_Shape& aF = aListOfShape.First();
256 aListOfShape.Clear();
258 NCollection_List<TopoDS_Shape> aTempList;
259 NCollection_Map<TopoDS_Shape> aTempMap;
260 for (TopTools_ListOfShape::Iterator aListIt(aListOfShape); aListIt.More(); aListIt.Next()) {
261 aTempList.Append(aListIt.Value());
262 aTempMap.Add(aListIt.Value());
263 aFreeShapes.Remove(aListIt.Value());
265 aListOfShape.Clear();
266 for(NCollection_List<TopoDS_Shape>::Iterator
267 aTempIter(aTempList); aTempIter.More(); aTempIter.Next()) {
268 const TopoDS_Shape& aTempShape = aTempIter.Value();
269 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
270 anIter(aMapSA); anIter.More(); anIter.Next()) {
271 TopTools_ListOfShape& aTempListOfShape = anIter.ChangeValue();
272 if(aTempListOfShape.IsEmpty()) {
274 } else if(aTempListOfShape.Size() == 1 && aTempListOfShape.First() == aTempShape) {
275 aTempListOfShape.Clear();
276 } else if(aTempListOfShape.Size() > 1) {
277 TopTools_ListOfShape::Iterator anIt1(aTempListOfShape);
278 for (; anIt1.More(); anIt1.Next()) {
279 if (anIt1.Value() == aTempShape) {
280 TopTools_ListOfShape::Iterator anIt2(aTempListOfShape);
281 for (; anIt2.More(); anIt2.Next())
283 if (anIt2.Value() != anIt1.Value()) {
284 if (aTempMap.Add(anIt2.Value())) {
285 aTempList.Append(anIt2.Value());
286 aFreeShapes.Remove(anIt2.Value());
290 aTempListOfShape.Clear();
297 aShapesWithCommonSubshapes.Append(aTempMap);
301 // Combine shapes with common subshapes.
302 for(NCollection_Vector<NCollection_Map<TopoDS_Shape>>::Iterator
303 anIter(aShapesWithCommonSubshapes); anIter.More(); anIter.Next()) {
305 TopoDS_CompSolid aCSolid;
306 TopoDS_Builder aBuilder;
308 GeomAPI_Shape::COMPSOLID ? aBuilder.MakeCompSolid(aCSolid) : aBuilder.MakeShell(aShell);
309 NCollection_Map<TopoDS_Shape>& aShapesMap = anIter.ChangeValue();
310 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
311 const TopoDS_Shape& aShape = anExp.Current();
312 if(aShapesMap.Contains(aShape)) {
314 GeomAPI_Shape::COMPSOLID ? aBuilder.Add(aCSolid, aShape) : aBuilder.Add(aShell, aShape);
315 aShapesMap.Remove(aShape);
318 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
319 TopoDS_Shape* aSh = theType == GeomAPI_Shape::COMPSOLID ? new TopoDS_Shape(aCSolid) :
320 new TopoDS_Shape(aShell);
321 aGeomShape->setImpl<TopoDS_Shape>(aSh);
322 theCombinedShapes.push_back(aGeomShape);
325 // Adding free shapes.
326 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
327 const TopoDS_Shape& aShape = anExp.Current();
328 if(aFreeShapes.Contains(aShape)) {
329 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
330 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
331 theFreeShapes.push_back(aGeomShape);
335 if(theCombinedShapes.size() == 1 && theFreeShapes.size() == 0) {
336 aResult = theCombinedShapes.front();
337 } else if(theCombinedShapes.size() == 0 && theFreeShapes.size() == 1) {
338 aResult = theFreeShapes.front();
340 TopoDS_Compound aResultComp;
341 TopoDS_Builder aBuilder;
342 aBuilder.MakeCompound(aResultComp);
343 for(ListOfShape::const_iterator anIter = theCombinedShapes.cbegin();
344 anIter != theCombinedShapes.cend(); anIter++) {
345 aBuilder.Add(aResultComp, (*anIter)->impl<TopoDS_Shape>());
347 for(ListOfShape::const_iterator anIter = theFreeShapes.cbegin();
348 anIter != theFreeShapes.cend(); anIter++) {
349 aBuilder.Add(aResultComp, (*anIter)->impl<TopoDS_Shape>());
351 aResult->setImpl(new TopoDS_Shape(aResultComp));
357 //==================================================================================================
358 static void addSimpleShapeToList(const TopoDS_Shape& theShape,
359 NCollection_List<TopoDS_Shape>& theList)
361 if(theShape.IsNull()) {
365 if(theShape.ShapeType() == TopAbs_COMPOUND) {
366 for(TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next()) {
367 addSimpleShapeToList(anIt.Value(), theList);
370 theList.Append(theShape);
374 //==================================================================================================
375 static TopoDS_Compound makeCompound(const NCollection_List<TopoDS_Shape> theShapes)
377 TopoDS_Compound aCompound;
379 BRep_Builder aBuilder;
380 aBuilder.MakeCompound(aCompound);
382 for(NCollection_List<TopoDS_Shape>::Iterator anIt(theShapes); anIt.More(); anIt.Next()) {
383 aBuilder.Add(aCompound, anIt.Value());
389 //==================================================================================================
390 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
391 const std::shared_ptr<GeomAPI_Shape> theCompound)
393 GeomShapePtr aResult = theCompound;
395 if (!theCompound.get()) {
399 TopoDS_Shape anInShape = aResult->impl<TopoDS_Shape>();
400 NCollection_List<TopoDS_Shape> anUngroupedShapes, aStillUngroupedShapes;
401 addSimpleShapeToList(anInShape, anUngroupedShapes);
403 // Iterate over all shapes and find shapes with shared vertices.
404 TopTools_ListOfShape allVertices;
405 TopTools_DataMapOfShapeListOfShape aVertexShapesMap;
406 for (NCollection_List<TopoDS_Shape>::Iterator aShapesIt(anUngroupedShapes);
409 const TopoDS_Shape& aShape = aShapesIt.Value();
410 for (TopExp_Explorer aShapeExp(aShape, TopAbs_VERTEX);
413 const TopoDS_Shape& aVertex = aShapeExp.Current();
414 if (!aVertexShapesMap.IsBound(aVertex)) {
415 NCollection_List<TopoDS_Shape> aList;
416 aList.Append(aShape);
417 allVertices.Append(aVertex);
418 aVertexShapesMap.Bind(aVertex, aList);
421 if (!aVertexShapesMap.ChangeFind(aVertex).Contains(aShape)) {
422 aVertexShapesMap.ChangeFind(aVertex).Append(aShape);
428 // Iterate over the map and group shapes.
429 NCollection_Vector<TopTools_ListOfShape> aGroups; // groups of shapes connected by vertices
430 while (!allVertices.IsEmpty()) {
431 // Get first group of shapes in map, and then unbind it.
432 const TopoDS_Shape& aKey = allVertices.First();
433 TopTools_ListOfShape aConnectedShapes = aVertexShapesMap.Find(aKey);
434 aVertexShapesMap.UnBind(aKey);
435 allVertices.Remove(aKey);
436 // Iterate over shapes in this group and add to it shapes from groups in map.
437 for (TopTools_ListOfShape::Iterator aConnectedIt(aConnectedShapes);
438 aConnectedIt.More(); aConnectedIt.Next()) {
439 const TopoDS_Shape& aConnected = aConnectedIt.Value();
440 TopTools_ListOfShape aKeysToUnbind;
441 for (TopTools_ListOfShape::Iterator aKeysIt(allVertices);
444 const TopTools_ListOfShape& anOtherConnected = aVertexShapesMap(aKeysIt.Value());
445 if (!anOtherConnected.Contains(aConnected)) {
446 // Other connected group does not containt shape from our connected group
449 // Other is connected to our, so add them to our connected
450 for (TopTools_ListOfShape::Iterator anOtherIt(anOtherConnected);
453 const TopoDS_Shape& aShape = anOtherIt.Value();
454 if (!aConnectedShapes.Contains(aShape)) {
455 aConnectedShapes.Append(aShape);
458 // Save key to unbind from this map.
459 aKeysToUnbind.Append(aKeysIt.Value());
461 // Unbind groups from map that we added to our group.
462 for (TopTools_ListOfShape::Iterator aKeysIt(aKeysToUnbind);
465 aVertexShapesMap.UnBind(aKeysIt.Value());
466 allVertices.Remove(aKeysIt.Value());
469 // Sort shapes from the most complicated to the simplest ones
470 TopTools_ListOfShape aSortedGroup;
471 for (int aST = TopAbs_COMPOUND; aST <= TopAbs_SHAPE; ++aST) {
472 TopTools_ListOfShape::Iterator anIt(aConnectedShapes);
473 while (anIt.More()) {
474 if (anIt.Value().ShapeType() == aST) {
475 aSortedGroup.Append(anIt.Value());
476 aConnectedShapes.Remove(anIt);
483 aGroups.Append(aSortedGroup);
486 TopoDS_Compound aCompound;
487 BRep_Builder aBuilder;
488 aBuilder.MakeCompound(aCompound);
489 ListOfShape aCompSolids, aFreeSolids;
490 for(NCollection_Vector<NCollection_List<TopoDS_Shape>>::Iterator
491 anIt(aGroups); anIt.More(); anIt.Next()) {
492 NCollection_List<TopoDS_Shape> aGroup = anIt.Value();
493 GeomShapePtr aGeomShape(new GeomAPI_Shape());
494 if(aGroup.Size() == 1) {
495 aGeomShape->setImpl(new TopoDS_Shape(aGroup.First()));
497 aGeomShape->setImpl(new TopoDS_Shape(makeCompound(aGroup)));
498 aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
499 GeomAPI_Shape::COMPSOLID,
503 aBuilder.Add(aCompound, aGeomShape->impl<TopoDS_Shape>());
506 if(!aCompound.IsNull()) {
507 aResult->setImpl(new TopoDS_Shape(aCompound));
513 //==================================================================================================
514 std::list<std::shared_ptr<GeomAPI_Pnt> >
515 GeomAlgoAPI_ShapeTools::getBoundingBox(const ListOfShape& theShapes, const double theEnlarge)
517 // Bounding box of all objects.
521 for (ListOfShape::const_iterator
522 anObjectsIt = theShapes.begin(); anObjectsIt != theShapes.end(); anObjectsIt++) {
523 const TopoDS_Shape& aShape = (*anObjectsIt)->impl<TopoDS_Shape>();
524 BRepBndLib::Add(aShape, aBndBox);
527 if(theEnlarge != 0.0) {
528 // We enlarge bounding box just to be sure that plane will be large enough to cut all objects.
529 aBndBox.Enlarge(theEnlarge);
532 Standard_Real aXArr[2] = {aBndBox.CornerMin().X(), aBndBox.CornerMax().X()};
533 Standard_Real aYArr[2] = {aBndBox.CornerMin().Y(), aBndBox.CornerMax().Y()};
534 Standard_Real aZArr[2] = {aBndBox.CornerMin().Z(), aBndBox.CornerMax().Z()};
535 std::list<std::shared_ptr<GeomAPI_Pnt> > aResultPoints;
537 for(int i = 0; i < 2; i++) {
538 for(int j = 0; j < 2; j++) {
539 for(int k = 0; k < 2; k++) {
540 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aXArr[i], aYArr[j], aZArr[k]));
541 aResultPoints.push_back(aPnt);
546 return aResultPoints;
549 //==================================================================================================
550 std::shared_ptr<GeomAPI_Shape>
551 GeomAlgoAPI_ShapeTools::faceToInfinitePlane(const std::shared_ptr<GeomAPI_Shape> theFace)
554 return std::shared_ptr<GeomAPI_Shape>();
556 TopoDS_Face aPlaneFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
557 if (aPlaneFace.IsNull())
558 return std::shared_ptr<GeomAPI_Shape>();
560 Handle(Geom_Plane) aPlane = Handle(Geom_Plane)::DownCast(BRep_Tool::Surface(aPlaneFace));
562 return std::shared_ptr<GeomAPI_Shape>();
564 // make an infinity face on the plane
565 TopoDS_Shape anInfiniteFace = BRepBuilderAPI_MakeFace(aPlane->Pln()).Shape();
567 std::shared_ptr<GeomAPI_Shape> aResult(new GeomAPI_Shape);
568 aResult->setImpl(new TopoDS_Shape(anInfiniteFace));
572 //==================================================================================================
573 std::shared_ptr<GeomAPI_Face> GeomAlgoAPI_ShapeTools::fitPlaneToBox(
574 const std::shared_ptr<GeomAPI_Shape> thePlane,
575 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints)
577 std::shared_ptr<GeomAPI_Face> aResultFace;
579 if(!thePlane.get()) {
583 const TopoDS_Shape& aShape = thePlane->impl<TopoDS_Shape>();
584 if(aShape.ShapeType() != TopAbs_FACE) {
588 TopoDS_Face aFace = TopoDS::Face(aShape);
589 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
594 GeomLib_IsPlanarSurface isPlanar(aSurf);
595 if(!isPlanar.IsPlanar()) {
599 if(thePoints.size() != 8) {
603 const gp_Pln& aFacePln = isPlanar.Plan();
604 Handle(Geom_Plane) aFacePlane = new Geom_Plane(aFacePln);
605 IntAna_Quadric aQuadric(aFacePln);
606 Standard_Real UMin, UMax, VMin, VMax;
607 UMin = UMax = VMin = VMax = 0;
608 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
609 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
610 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
611 gp_Lin aLin(aPnt, aFacePln.Axis().Direction());
612 IntAna_IntConicQuad anIntAna(aLin, aQuadric);
613 const gp_Pnt& aPntOnFace = anIntAna.Point(1);
614 Standard_Real aPntU(0), aPntV(0);
615 GeomLib_Tool::Parameters(aFacePlane, aPntOnFace, Precision::Confusion(), aPntU, aPntV);
616 if(aPntU < UMin) UMin = aPntU;
617 if(aPntU > UMax) UMax = aPntU;
618 if(aPntV < VMin) VMin = aPntV;
619 if(aPntV > VMax) VMax = aPntV;
621 aResultFace.reset(new GeomAPI_Face());
622 aResultFace->setImpl(new TopoDS_Face(BRepLib_MakeFace(aFacePln, UMin, UMax, VMin, VMax).Face()));
627 //==================================================================================================
628 void GeomAlgoAPI_ShapeTools::findBounds(const std::shared_ptr<GeomAPI_Shape> theShape,
629 std::shared_ptr<GeomAPI_Vertex>& theV1,
630 std::shared_ptr<GeomAPI_Vertex>& theV2)
632 if(!theShape.get()) {
633 std::shared_ptr<GeomAPI_Vertex> aVertex(new GeomAPI_Vertex);
634 aVertex->setImpl(new TopoDS_Vertex());
640 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
641 TopoDS_Vertex aV1, aV2;
642 ShapeAnalysis::FindBounds(aShape, aV1, aV2);
644 std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
645 aGeomV1->setImpl(new TopoDS_Vertex(aV1));
646 aGeomV2->setImpl(new TopoDS_Vertex(aV2));
651 //==================================================================================================
652 void GeomAlgoAPI_ShapeTools::makeFacesWithHoles(const std::shared_ptr<GeomAPI_Pnt> theOrigin,
653 const std::shared_ptr<GeomAPI_Dir> theDirection,
654 const ListOfShape& theWires,
655 ListOfShape& theFaces)
657 BRepBuilderAPI_MakeFace aMKFace(gp_Pln(theOrigin->impl<gp_Pnt>(),
658 theDirection->impl<gp_Dir>()));
659 TopoDS_Face aFace = aMKFace.Face();
661 BRepAlgo_FaceRestrictor aFRestrictor;
662 aFRestrictor.Init(aFace, Standard_False, Standard_True);
663 for(ListOfShape::const_iterator anIt = theWires.cbegin();
664 anIt != theWires.cend();
666 TopoDS_Wire aWire = TopoDS::Wire((*anIt)->impl<TopoDS_Shape>());
667 aFRestrictor.Add(aWire);
670 aFRestrictor.Perform();
672 if(!aFRestrictor.IsDone()) {
676 for(; aFRestrictor.More(); aFRestrictor.Next()) {
677 GeomShapePtr aShape(new GeomAPI_Shape());
678 aShape->setImpl(new TopoDS_Shape(aFRestrictor.Current()));
679 theFaces.push_back(aShape);
683 //==================================================================================================
684 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_ShapeTools::findPlane(const ListOfShape& theShapes)
686 TopoDS_Compound aCompound;
687 BRep_Builder aBuilder;
688 aBuilder.MakeCompound(aCompound);
690 for(ListOfShape::const_iterator anIt = theShapes.cbegin(); anIt != theShapes.cend(); ++anIt) {
691 aBuilder.Add(aCompound, (*anIt)->impl<TopoDS_Shape>());
693 BRepBuilderAPI_FindPlane aFindPlane(aCompound);
695 if(aFindPlane.Found() != Standard_True) {
696 return std::shared_ptr<GeomAPI_Pln>();
699 Handle(Geom_Plane) aPlane = aFindPlane.Plane();
700 gp_Pnt aLoc = aPlane->Location();
701 gp_Dir aDir = aPlane->Axis().Direction();
703 std::shared_ptr<GeomAPI_Pnt> aGeomPnt(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
704 std::shared_ptr<GeomAPI_Dir> aGeomDir(new GeomAPI_Dir(aDir.X(), aDir.Y(), aDir.Z()));
706 std::shared_ptr<GeomAPI_Pln> aPln(new GeomAPI_Pln(aGeomPnt, aGeomDir));
711 //==================================================================================================
712 bool GeomAlgoAPI_ShapeTools::isSubShapeInsideShape(
713 const std::shared_ptr<GeomAPI_Shape> theSubShape,
714 const std::shared_ptr<GeomAPI_Shape> theBaseShape)
716 if(!theSubShape.get() || !theBaseShape.get()) {
720 const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
721 const TopoDS_Shape& aBaseShape = theBaseShape->impl<TopoDS_Shape>();
723 if(aSubShape.ShapeType() == TopAbs_VERTEX) {
724 // If sub-shape is a vertex check distance to shape. If it is <= Precision::Confusion() then OK.
725 BRepExtrema_DistShapeShape aDist(aBaseShape, aSubShape);
727 if(!aDist.IsDone() || aDist.Value() > Precision::Confusion()) {
730 } else if (aSubShape.ShapeType() == TopAbs_EDGE) {
731 if(aBaseShape.ShapeType() == TopAbs_FACE) {
732 // Check that edge is on face surface.
733 TopoDS_Face aFace = TopoDS::Face(aBaseShape);
734 TopoDS_Edge anEdge = TopoDS::Edge(aSubShape);
735 BRepLib_CheckCurveOnSurface aCheck(anEdge, aFace);
737 if(!aCheck.IsDone() || aCheck.MaxDistance() > Precision::Confusion()) {
741 // Check intersections.
742 TopoDS_Vertex aV1, aV2;
743 ShapeAnalysis::FindBounds(anEdge, aV1, aV2);
744 gp_Pnt aPnt1 = BRep_Tool::Pnt(aV1);
745 gp_Pnt aPnt2 = BRep_Tool::Pnt(aV2);
746 for(TopExp_Explorer anExp(aBaseShape, TopAbs_EDGE); anExp.More(); anExp.Next()) {
747 const TopoDS_Shape& anEdgeOnFace = anExp.Current();
748 BRepExtrema_DistShapeShape aDist(anEdgeOnFace, anEdge);
750 if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
751 // Edge intersect face bound. Check that it is not on edge begin or end.
752 for(Standard_Integer anIndex = 1; anIndex <= aDist.NbSolution(); ++anIndex) {
753 gp_Pnt aPntOnSubShape = aDist.PointOnShape2(anIndex);
754 if(aPntOnSubShape.Distance(aPnt1) > Precision::Confusion()
755 && aPntOnSubShape.Distance(aPnt2) > Precision::Confusion()) {
762 // No intersections found. Edge is inside or outside face. Check it.
763 BRepAdaptor_Curve aCurveAdaptor(anEdge);
764 gp_Pnt aPointToCheck =
765 aCurveAdaptor.Value((aCurveAdaptor.FirstParameter() +
766 aCurveAdaptor.LastParameter()) / 2.0);
767 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(aFace);
768 ShapeAnalysis_Surface aSAS(aSurface);
769 gp_Pnt2d aPointOnFace = aSAS.ValueOfUV(aPointToCheck, Precision::Confusion());
770 BRepTopAdaptor_FClass2d aFClass2d(aFace, Precision::Confusion());
771 if(aFClass2d.Perform(aPointOnFace) == TopAbs_OUT) {
785 //==================================================================================================
786 bool GeomAlgoAPI_ShapeTools::isShapeValid(const std::shared_ptr<GeomAPI_Shape> theShape)
788 if(!theShape.get()) {
792 BRepCheck_Analyzer aChecker(theShape->impl<TopoDS_Shape>());
793 return (aChecker.IsValid() == Standard_True);
796 //==================================================================================================
797 std::shared_ptr<GeomAPI_Shape>
798 GeomAlgoAPI_ShapeTools::getFaceOuterWire(const std::shared_ptr<GeomAPI_Shape> theFace)
800 GeomShapePtr anOuterWire;
802 if(!theFace.get() || !theFace->isFace()) {
806 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
807 TopoDS_Wire aWire = BRepTools::OuterWire(aFace);
809 anOuterWire.reset(new GeomAPI_Shape());
810 anOuterWire->setImpl(new TopoDS_Shape(aWire));
815 //==================================================================================================
816 bool GeomAlgoAPI_ShapeTools::isParallel(const std::shared_ptr<GeomAPI_Edge> theEdge,
817 const std::shared_ptr<GeomAPI_Face> theFace)
819 if(!theEdge.get() || !theFace.get()) {
823 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
824 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
826 BRepExtrema_ExtCF anExt(anEdge, aFace);
827 return anExt.IsParallel() == Standard_True;
830 //==================================================================================================
831 std::list<std::shared_ptr<GeomAPI_Vertex> > GeomAlgoAPI_ShapeTools::intersect(
832 const std::shared_ptr<GeomAPI_Edge> theEdge, const std::shared_ptr<GeomAPI_Face> theFace,
833 const bool thePointsOutsideFace)
835 std::list<std::shared_ptr<GeomAPI_Vertex> > aResult;
836 if(!theEdge.get() || !theFace.get()) {
840 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
841 double aFirstOnCurve, aLastOnCurve;
842 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirstOnCurve, aLastOnCurve);
844 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
845 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
847 GeomAPI_IntCS anIntAlgo(aCurve, aSurf);
848 if (!anIntAlgo.IsDone())
850 // searching for points-intersection
851 for(int anIntNum = 1; anIntNum <= anIntAlgo.NbPoints() + anIntAlgo.NbSegments(); anIntNum++) {
853 if (anIntNum <= anIntAlgo.NbPoints()) {
854 anInt = anIntAlgo.Point(anIntNum);
855 } else { // take the middle point on the segment of the intersection
856 Handle(Geom_Curve) anIntCurve = anIntAlgo.Segment(anIntNum - anIntAlgo.NbPoints());
857 anIntCurve->D0((anIntCurve->FirstParameter() + anIntCurve->LastParameter()) / 2., anInt);
859 aResult.push_back(std::shared_ptr<GeomAPI_Vertex>(
860 new GeomAPI_Vertex(anInt.X(), anInt.Y(), anInt.Z())));
865 //==================================================================================================
866 void GeomAlgoAPI_ShapeTools::splitShape(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
867 const GeomAlgoAPI_ShapeTools::PointToRefsMap& thePointsInfo,
868 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
870 // to split shape at least one point should be presented in the points container
871 if (thePointsInfo.empty())
874 // General Fuse to split edge by vertices
875 BOPAlgo_Builder aBOP;
876 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
877 // Rebuild closed edge to place vertex to one of split points.
878 // This will prevent edge to be split on same vertex.
879 if (BRep_Tool::IsClosed(aBaseEdge))
881 Standard_Real aFirst, aLast;
882 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
884 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
885 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
886 gp_Pnt aPoint(aPnt->x(), aPnt->y(), aPnt->z());
888 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
889 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
890 aBaseEdge.Orientation(anOrientation);
892 aBOP.AddArgument(aBaseEdge);
894 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
895 for (; aPIt != thePointsInfo.end(); ++aPIt) {
896 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
897 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
898 aBOP.AddArgument(aV);
902 if (aBOP.HasErrors())
906 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
907 TopTools_ListIteratorOfListOfShape anIt(aSplits);
908 for (; anIt.More(); anIt.Next()) {
909 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
910 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
911 theShapes.insert(anEdge);
915 //==================================================================================================
916 void GeomAlgoAPI_ShapeTools::splitShape_p(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
917 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
918 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
920 // General Fuse to split edge by vertices
921 BOPAlgo_Builder aBOP;
922 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
923 // Rebuild closed edge to place vertex to one of split points.
924 // This will prevent edge to be split on seam vertex.
925 if (BRep_Tool::IsClosed(aBaseEdge))
927 Standard_Real aFirst, aLast;
928 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
930 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPIt = thePoints.begin();
931 gp_Pnt aPoint((*aPIt)->x(), (*aPIt)->y(), (*aPIt)->z());
933 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
934 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
935 aBaseEdge.Orientation(anOrientation);
937 aBOP.AddArgument(aBaseEdge);
939 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPtIt = thePoints.begin();
940 for (; aPtIt != thePoints.end(); ++aPtIt) {
941 std::shared_ptr<GeomAPI_Pnt> aPnt = *aPtIt;
942 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
943 aBOP.AddArgument(aV);
947 if (aBOP.HasErrors())
951 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
952 TopTools_ListIteratorOfListOfShape anIt(aSplits);
953 for (; anIt.More(); anIt.Next()) {
954 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
955 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
956 theShapes.insert(anEdge);
960 //==================================================================================================
961 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::findShape(
962 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
963 const std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
965 std::shared_ptr<GeomAPI_Shape> aResultShape;
967 if (thePoints.size() == 2) {
968 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPntIt = thePoints.begin();
969 std::shared_ptr<GeomAPI_Pnt> aFirstPoint = *aPntIt;
971 std::shared_ptr<GeomAPI_Pnt> aLastPoint = *aPntIt;
973 std::set<std::shared_ptr<GeomAPI_Shape> >::const_iterator anIt = theShapes.begin(),
974 aLast = theShapes.end();
975 for (; anIt != aLast; anIt++) {
976 GeomShapePtr aShape = *anIt;
977 std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aShape));
979 std::shared_ptr<GeomAPI_Pnt> anEdgeFirstPoint = anEdge->firstPoint();
980 std::shared_ptr<GeomAPI_Pnt> anEdgeLastPoint = anEdge->lastPoint();
981 if (anEdgeFirstPoint->isEqual(aFirstPoint) &&
982 anEdgeLastPoint->isEqual(aLastPoint))
983 aResultShape = aShape;
991 //==================================================================================================
992 std::shared_ptr<GeomAPI_Dir> GeomAlgoAPI_ShapeTools::buildDirFromAxisAndShape(
993 const std::shared_ptr<GeomAPI_Shape> theBaseShape,
994 const std::shared_ptr<GeomAPI_Ax1> theAxis)
996 gp_Pnt aCentreOfMassPoint =
997 GeomAlgoAPI_ShapeTools::centreOfMass(theBaseShape)->impl<gp_Pnt>();
998 Handle(Geom_Line) aLine = new Geom_Line(theAxis->impl<gp_Ax1>());
999 GeomAPI_ProjectPointOnCurve aPrjTool(aCentreOfMassPoint, aLine);
1000 gp_Pnt aPoint = aPrjTool.NearestPoint();
1002 std::shared_ptr<GeomAPI_Dir> aDir(new GeomAPI_Dir(aCentreOfMassPoint.X()-aPoint.X(),
1003 aCentreOfMassPoint.Y()-aPoint.Y(),
1004 aCentreOfMassPoint.Z()-aPoint.Z()));
1008 //==================================================================================================
1009 static TopoDS_Wire fixParametricGaps(const TopoDS_Wire& theWire)
1011 TopoDS_Wire aFixedWire;
1012 Handle(Geom_Curve) aPrevCurve;
1013 double aPrevLastParam = 0.0;
1015 BRep_Builder aBuilder;
1016 aBuilder.MakeWire(aFixedWire);
1018 BRepTools_WireExplorer aWExp(theWire);
1019 for (; aWExp.More(); aWExp.Next()) {
1020 TopoDS_Edge anEdge = aWExp.Current();
1021 double aFirst, aLast;
1022 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
1023 if (aCurve == aPrevCurve) {
1024 // if parametric gap occurs, create new edge based on the copied curve
1025 aCurve = Handle(Geom_Curve)::DownCast(aCurve->Copy());
1026 TopoDS_Vertex aV1, aV2;
1027 TopExp::Vertices(anEdge, aV1, aV2);
1028 anEdge = TopoDS::Edge(anEdge.EmptyCopied());
1029 aBuilder.UpdateEdge(anEdge, aCurve, BRep_Tool::Tolerance(anEdge));
1030 aBuilder.Add(anEdge, aV1);
1031 aBuilder.Add(anEdge, aV2);
1034 aBuilder.Add(aFixedWire, anEdge);
1036 aPrevCurve = aCurve;
1037 aPrevLastParam = aLast;
1043 std::shared_ptr<GeomAPI_Edge> GeomAlgoAPI_ShapeTools::wireToEdge(
1044 const std::shared_ptr<GeomAPI_Wire>& theWire)
1048 TopoDS_Wire aWire = theWire->impl<TopoDS_Wire>();
1049 // Workaround: when concatenate a wire consisting of two edges based on the same B-spline curve
1050 // (non-periodic, but having equal start and end points), first of which is placed at the end
1051 // on the curve and second is placed at the start, this workaround copies second curve to avoid
1052 // treating these edges as a single curve by setting trim parameters.
1053 aWire = fixParametricGaps(aWire);
1054 TopoDS_Edge aNewEdge = BRepAlgo::ConcatenateWireC0(aWire);
1055 anEdge = GeomEdgePtr(new GeomAPI_Edge);
1056 anEdge->setImpl(new TopoDS_Edge(aNewEdge));