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 <GeomAPI_ShapeIterator.h>
59 #include <GeomLib_IsPlanarSurface.hxx>
60 #include <GeomLib_Tool.hxx>
61 #include <GeomAPI_IntCS.hxx>
63 #include <GProp_GProps.hxx>
64 #include <IntAna_IntConicQuad.hxx>
65 #include <IntAna_Quadric.hxx>
66 #include <NCollection_Vector.hxx>
67 #include <ShapeAnalysis.hxx>
68 #include <ShapeAnalysis_Surface.hxx>
69 #include <TopoDS_Builder.hxx>
70 #include <TopoDS_Edge.hxx>
71 #include <TopoDS_Face.hxx>
72 #include <TopoDS_Shape.hxx>
73 #include <TopoDS_Shell.hxx>
74 #include <TopoDS_Vertex.hxx>
77 #include <TopExp_Explorer.hxx>
78 #include <TopTools_ListIteratorOfListOfShape.hxx>
81 #include <BOPAlgo_Builder.hxx>
82 #include <BRepBuilderAPI_MakeVertex.hxx>
83 #include <TopoDS_Edge.hxx>
85 //==================================================================================================
86 static GProp_GProps props(const TopoDS_Shape& theShape)
90 if (theShape.ShapeType() == TopAbs_EDGE || theShape.ShapeType() == TopAbs_WIRE)
92 BRepGProp::LinearProperties(theShape, aGProps);
94 else if (theShape.ShapeType() == TopAbs_FACE || theShape.ShapeType() == TopAbs_SHELL)
96 const Standard_Real anEps = 1.e-6;
97 BRepGProp::SurfaceProperties(theShape, aGProps, anEps);
99 else if (theShape.ShapeType() == TopAbs_SOLID || theShape.ShapeType() == TopAbs_COMPSOLID)
101 BRepGProp::VolumeProperties(theShape, aGProps);
103 else if (theShape.ShapeType() == TopAbs_COMPOUND)
105 for (TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next())
107 aGProps.Add(props(anIt.Value()));
114 //==================================================================================================
115 double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theShape)
117 GProp_GProps aGProps;
118 if(!theShape.get()) {
121 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
122 if(aShape.IsNull()) {
125 const Standard_Real anEps = 1.e-6;
126 if (aShape.ShapeType() <= TopAbs_SOLID)
127 BRepGProp::VolumeProperties(aShape, aGProps, anEps);
129 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
130 return aGProps.Mass();
133 //==================================================================================================
134 double GeomAlgoAPI_ShapeTools::area (const std::shared_ptr<GeomAPI_Shape> theShape)
136 GProp_GProps aGProps;
137 if(!theShape.get()) {
140 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
141 if(aShape.IsNull()) {
144 const Standard_Real anEps = 1.e-6;
146 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
147 return aGProps.Mass();
150 //==================================================================================================
151 std::shared_ptr<GeomAPI_Pnt>
152 GeomAlgoAPI_ShapeTools::centreOfMass(const std::shared_ptr<GeomAPI_Shape> theShape)
154 GProp_GProps aGProps;
156 return std::shared_ptr<GeomAPI_Pnt>();
158 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
159 if(aShape.IsNull()) {
160 return std::shared_ptr<GeomAPI_Pnt>();
163 if(aShape.ShapeType() == TopAbs_VERTEX) {
164 aCentre = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
166 aGProps = props(aShape);
167 aCentre = aGProps.CentreOfMass();
170 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aCentre.X(), aCentre.Y(), aCentre.Z()));
173 //==================================================================================================
174 double GeomAlgoAPI_ShapeTools::radius(const std::shared_ptr<GeomAPI_Face>& theCylinder)
176 double aRadius = -1.0;
177 if (theCylinder->isCylindrical()) {
178 const TopoDS_Shape& aShape = theCylinder->impl<TopoDS_Shape>();
179 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(TopoDS::Face(aShape));
180 Handle(Geom_CylindricalSurface) aCyl = Handle(Geom_CylindricalSurface)::DownCast(aSurf);
182 aRadius = aCyl->Radius();
187 //==================================================================================================
188 double GeomAlgoAPI_ShapeTools::minimalDistance(const GeomShapePtr& theShape1,
189 const GeomShapePtr& theShape2)
191 const TopoDS_Shape& aShape1 = theShape1->impl<TopoDS_Shape>();
192 const TopoDS_Shape& aShape2 = theShape2->impl<TopoDS_Shape>();
194 BRepExtrema_DistShapeShape aDist(aShape1, aShape2);
196 return aDist.IsDone() ? aDist.Value() : Precision::Infinite();
199 //==================================================================================================
200 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
201 const std::shared_ptr<GeomAPI_Shape> theCompound,
202 const GeomAPI_Shape::ShapeType theType,
203 ListOfShape& theCombinedShapes,
204 ListOfShape& theFreeShapes)
206 GeomShapePtr aResult = theCompound;
208 if(!theCompound.get()) {
212 if(theType != GeomAPI_Shape::SHELL && theType != GeomAPI_Shape::COMPSOLID) {
216 TopAbs_ShapeEnum aTS = TopAbs_EDGE;
217 TopAbs_ShapeEnum aTA = TopAbs_FACE;
218 if(theType == GeomAPI_Shape::COMPSOLID) {
223 theCombinedShapes.clear();
224 theFreeShapes.clear();
227 const TopoDS_Shape& aShapesComp = theCompound->impl<TopoDS_Shape>();
228 for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next() ) {
229 const TopoDS_Shape& aShape = anIter.Value();
230 if(aShape.ShapeType() > aTA) {
231 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
232 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
233 theFreeShapes.push_back(aGeomShape);
237 // Map sub-shapes and shapes.
238 TopTools_IndexedDataMapOfShapeListOfShape aMapSA;
239 TopExp::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
240 if(aMapSA.IsEmpty()) {
244 // Get all shapes with common sub-shapes and free shapes.
245 NCollection_Map<TopoDS_Shape> aFreeShapes;
246 NCollection_Vector<NCollection_Map<TopoDS_Shape>> aShapesWithCommonSubshapes;
247 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
248 anIter(aMapSA); anIter.More(); anIter.Next()) {
249 const TopoDS_Shape& aShape = anIter.Key();
250 TopTools_ListOfShape& aListOfShape = anIter.ChangeValue();
251 if(aListOfShape.IsEmpty()) {
254 else if(aListOfShape.Size() == 1) {
255 const TopoDS_Shape& aF = aListOfShape.First();
257 aListOfShape.Clear();
259 NCollection_List<TopoDS_Shape> aTempList;
260 NCollection_Map<TopoDS_Shape> aTempMap;
261 for (TopTools_ListOfShape::Iterator aListIt(aListOfShape); aListIt.More(); aListIt.Next()) {
262 aTempList.Append(aListIt.Value());
263 aTempMap.Add(aListIt.Value());
264 aFreeShapes.Remove(aListIt.Value());
266 aListOfShape.Clear();
267 for(NCollection_List<TopoDS_Shape>::Iterator
268 aTempIter(aTempList); aTempIter.More(); aTempIter.Next()) {
269 const TopoDS_Shape& aTempShape = aTempIter.Value();
270 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
271 anIter(aMapSA); anIter.More(); anIter.Next()) {
272 TopTools_ListOfShape& aTempListOfShape = anIter.ChangeValue();
273 if(aTempListOfShape.IsEmpty()) {
275 } else if(aTempListOfShape.Size() == 1 && aTempListOfShape.First() == aTempShape) {
276 aTempListOfShape.Clear();
277 } else if(aTempListOfShape.Size() > 1) {
278 TopTools_ListOfShape::Iterator anIt1(aTempListOfShape);
279 for (; anIt1.More(); anIt1.Next()) {
280 if (anIt1.Value() == aTempShape) {
281 TopTools_ListOfShape::Iterator anIt2(aTempListOfShape);
282 for (; anIt2.More(); anIt2.Next())
284 if (anIt2.Value() != anIt1.Value()) {
285 if (aTempMap.Add(anIt2.Value())) {
286 aTempList.Append(anIt2.Value());
287 aFreeShapes.Remove(anIt2.Value());
291 aTempListOfShape.Clear();
298 aShapesWithCommonSubshapes.Append(aTempMap);
302 // Combine shapes with common sub-shapes.
303 for(NCollection_Vector<NCollection_Map<TopoDS_Shape>>::Iterator
304 anIter(aShapesWithCommonSubshapes); anIter.More(); anIter.Next()) {
306 TopoDS_CompSolid aCSolid;
307 TopoDS_Builder aBuilder;
309 GeomAPI_Shape::COMPSOLID ? aBuilder.MakeCompSolid(aCSolid) : aBuilder.MakeShell(aShell);
310 NCollection_Map<TopoDS_Shape>& aShapesMap = anIter.ChangeValue();
311 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
312 const TopoDS_Shape& aShape = anExp.Current();
313 if(aShapesMap.Contains(aShape)) {
315 GeomAPI_Shape::COMPSOLID ? aBuilder.Add(aCSolid, aShape) : aBuilder.Add(aShell, aShape);
316 aShapesMap.Remove(aShape);
319 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
320 TopoDS_Shape* aSh = theType == GeomAPI_Shape::COMPSOLID ? new TopoDS_Shape(aCSolid) :
321 new TopoDS_Shape(aShell);
322 aGeomShape->setImpl<TopoDS_Shape>(aSh);
323 theCombinedShapes.push_back(aGeomShape);
326 // Adding free shapes in the same order as they are in the initial compound
327 NCollection_Map<TopoDS_Shape> aFreeSimple;
328 for(ListOfShape::iterator aFree = theFreeShapes.begin(); aFree != theFreeShapes.end(); aFree++) {
329 aFreeSimple.Add((*aFree)->impl<TopoDS_Shape>());
331 theFreeShapes.clear();
333 for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next() ) {
334 const TopoDS_Shape& aShape = anIter.Value();
335 if((aShape.ShapeType() > aTA && aFreeSimple.Contains(aShape)) ||
336 (aShape.ShapeType() == aTA && aFreeShapes.Contains(aShape))) {
337 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
338 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
339 theFreeShapes.push_back(aGeomShape);
340 } else if (aShape.ShapeType() < aTA) {
341 for(TopExp_Explorer anExp(aShape, aTA); anExp.More(); anExp.Next()) {
342 const TopoDS_Shape& aSubShape = anExp.Current();
343 if (aFreeShapes.Contains(aSubShape)) {
344 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
345 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aSubShape));
346 theFreeShapes.push_back(aGeomShape);
352 if(theCombinedShapes.size() == 1 && theFreeShapes.size() == 0) {
353 aResult = theCombinedShapes.front();
354 } else if(theCombinedShapes.size() == 0 && theFreeShapes.size() == 1) {
355 aResult = theFreeShapes.front();
357 TopoDS_Compound aResultComp;
358 TopoDS_Builder aBuilder;
359 aBuilder.MakeCompound(aResultComp);
360 for(ListOfShape::const_iterator anIter = theCombinedShapes.cbegin();
361 anIter != theCombinedShapes.cend(); anIter++) {
362 aBuilder.Add(aResultComp, (*anIter)->impl<TopoDS_Shape>());
364 for(ListOfShape::const_iterator anIter = theFreeShapes.cbegin();
365 anIter != theFreeShapes.cend(); anIter++) {
366 aBuilder.Add(aResultComp, (*anIter)->impl<TopoDS_Shape>());
368 aResult->setImpl(new TopoDS_Shape(aResultComp));
374 //==================================================================================================
375 static void addSimpleShapeToList(const TopoDS_Shape& theShape,
376 NCollection_List<TopoDS_Shape>& theList)
378 if(theShape.IsNull()) {
382 if(theShape.ShapeType() == TopAbs_COMPOUND) {
383 for(TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next()) {
384 addSimpleShapeToList(anIt.Value(), theList);
387 theList.Append(theShape);
391 //==================================================================================================
392 static TopoDS_Compound makeCompound(const NCollection_List<TopoDS_Shape> theShapes)
394 TopoDS_Compound aCompound;
396 BRep_Builder aBuilder;
397 aBuilder.MakeCompound(aCompound);
399 for(NCollection_List<TopoDS_Shape>::Iterator anIt(theShapes); anIt.More(); anIt.Next()) {
400 aBuilder.Add(aCompound, anIt.Value());
406 //==================================================================================================
407 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
408 const std::shared_ptr<GeomAPI_Shape> theCompound)
410 GeomShapePtr aResult = theCompound;
412 if (!theCompound.get()) {
416 TopoDS_Shape anInShape = aResult->impl<TopoDS_Shape>();
417 NCollection_List<TopoDS_Shape> anUngroupedShapes, aStillUngroupedShapes;
418 addSimpleShapeToList(anInShape, anUngroupedShapes);
420 // Iterate over all shapes and find shapes with shared vertices.
421 TopTools_ListOfShape allVertices;
422 TopTools_DataMapOfShapeListOfShape aVertexShapesMap;
423 for (NCollection_List<TopoDS_Shape>::Iterator aShapesIt(anUngroupedShapes);
426 const TopoDS_Shape& aShape = aShapesIt.Value();
427 for (TopExp_Explorer aShapeExp(aShape, TopAbs_VERTEX);
430 const TopoDS_Shape& aVertex = aShapeExp.Current();
431 if (!aVertexShapesMap.IsBound(aVertex)) {
432 NCollection_List<TopoDS_Shape> aList;
433 aList.Append(aShape);
434 allVertices.Append(aVertex);
435 aVertexShapesMap.Bind(aVertex, aList);
438 if (!aVertexShapesMap.ChangeFind(aVertex).Contains(aShape)) {
439 aVertexShapesMap.ChangeFind(aVertex).Append(aShape);
445 // Iterate over the map and group shapes.
446 NCollection_Vector<TopTools_MapOfShape> aGroups; // groups of shapes connected by vertices
447 while (!allVertices.IsEmpty()) {
448 // Get first group of shapes in map, and then unbind it.
449 const TopoDS_Shape& aKey = allVertices.First();
450 TopTools_ListOfShape aConnectedShapes = aVertexShapesMap.Find(aKey);
451 aVertexShapesMap.UnBind(aKey);
452 allVertices.Remove(aKey);
453 // Iterate over shapes in this group and add to it shapes from groups in map.
454 for (TopTools_ListOfShape::Iterator aConnectedIt(aConnectedShapes);
455 aConnectedIt.More(); aConnectedIt.Next()) {
456 const TopoDS_Shape& aConnected = aConnectedIt.Value();
457 TopTools_ListOfShape aKeysToUnbind;
458 for (TopTools_ListOfShape::Iterator aKeysIt(allVertices);
461 const TopTools_ListOfShape& anOtherConnected = aVertexShapesMap(aKeysIt.Value());
462 if (!anOtherConnected.Contains(aConnected)) {
463 // Other connected group does not contain shape from our connected group
466 // Other is connected to our, so add them to our connected
467 for (TopTools_ListOfShape::Iterator anOtherIt(anOtherConnected);
470 const TopoDS_Shape& aShape = anOtherIt.Value();
471 if (!aConnectedShapes.Contains(aShape)) {
472 aConnectedShapes.Append(aShape);
475 // Save key to unbind from this map.
476 aKeysToUnbind.Append(aKeysIt.Value());
478 // Unbind groups from map that we added to our group.
479 for (TopTools_ListOfShape::Iterator aKeysIt(aKeysToUnbind);
482 aVertexShapesMap.UnBind(aKeysIt.Value());
483 allVertices.Remove(aKeysIt.Value());
486 // Sort shapes from the most complicated to the simplest ones
487 TopTools_MapOfShape aSortedGroup;
488 for (int aST = TopAbs_COMPOUND; aST <= TopAbs_SHAPE; ++aST) {
489 TopTools_ListOfShape::Iterator anIt(aConnectedShapes);
490 while (anIt.More()) {
491 if (anIt.Value().ShapeType() == aST) {
492 aSortedGroup.Add(anIt.Value());
493 aConnectedShapes.Remove(anIt);
500 aGroups.Append(aSortedGroup);
503 TopoDS_Compound aCompound;
504 BRep_Builder aBuilder;
505 aBuilder.MakeCompound(aCompound);
506 ListOfShape aCompSolids, aFreeSolids;
507 for (NCollection_Vector<TopTools_MapOfShape>::Iterator anIt(aGroups); anIt.More(); anIt.Next()) {
508 const TopTools_MapOfShape& aGroup = anIt.ChangeValue();
509 GeomShapePtr aGeomShape(new GeomAPI_Shape());
510 if(aGroup.Size() == 1) {
511 TopTools_MapOfShape::Iterator aOneShapeIter(aGroup);
512 aGeomShape->setImpl(new TopoDS_Shape(aOneShapeIter.Value()));
514 // make sub-shapes in the group have order same as in original shape
515 TopTools_ListOfShape anOrderedGoup;
516 NCollection_List<TopoDS_Shape>::Iterator anUngrouped(anUngroupedShapes);
517 for (; anUngrouped.More(); anUngrouped.Next()) {
518 if (aGroup.Contains(anUngrouped.Value()))
519 anOrderedGoup.Append(anUngrouped.Value());
521 aGeomShape->setImpl(new TopoDS_Shape(makeCompound(anOrderedGoup)));
522 aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
523 GeomAPI_Shape::COMPSOLID,
527 aBuilder.Add(aCompound, aGeomShape->impl<TopoDS_Shape>());
530 if(!aCompound.IsNull()) {
531 aResult->setImpl(new TopoDS_Shape(aCompound));
537 //==================================================================================================
538 std::list<std::shared_ptr<GeomAPI_Pnt> >
539 GeomAlgoAPI_ShapeTools::getBoundingBox(const ListOfShape& theShapes, const double theEnlarge)
541 // Bounding box of all objects.
545 for (ListOfShape::const_iterator
546 anObjectsIt = theShapes.begin(); anObjectsIt != theShapes.end(); anObjectsIt++) {
547 const TopoDS_Shape& aShape = (*anObjectsIt)->impl<TopoDS_Shape>();
548 BRepBndLib::Add(aShape, aBndBox);
551 if(theEnlarge != 0.0) {
552 // We enlarge bounding box just to be sure that plane will be large enough to cut all objects.
553 aBndBox.Enlarge(theEnlarge);
556 Standard_Real aXArr[2] = {aBndBox.CornerMin().X(), aBndBox.CornerMax().X()};
557 Standard_Real aYArr[2] = {aBndBox.CornerMin().Y(), aBndBox.CornerMax().Y()};
558 Standard_Real aZArr[2] = {aBndBox.CornerMin().Z(), aBndBox.CornerMax().Z()};
559 std::list<std::shared_ptr<GeomAPI_Pnt> > aResultPoints;
561 for(int i = 0; i < 2; i++) {
562 for(int j = 0; j < 2; j++) {
563 for(int k = 0; k < 2; k++) {
564 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aXArr[i], aYArr[j], aZArr[k]));
565 aResultPoints.push_back(aPnt);
570 return aResultPoints;
573 //==================================================================================================
574 std::shared_ptr<GeomAPI_Face> GeomAlgoAPI_ShapeTools::fitPlaneToBox(
575 const std::shared_ptr<GeomAPI_Shape> thePlane,
576 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints)
578 std::shared_ptr<GeomAPI_Face> aResultFace;
580 if(!thePlane.get()) {
584 const TopoDS_Shape& aShape = thePlane->impl<TopoDS_Shape>();
585 if(aShape.ShapeType() != TopAbs_FACE) {
589 TopoDS_Face aFace = TopoDS::Face(aShape);
590 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
595 GeomLib_IsPlanarSurface isPlanar(aSurf);
596 if(!isPlanar.IsPlanar()) {
600 if(thePoints.size() != 8) {
604 const gp_Pln& aFacePln = isPlanar.Plan();
605 Handle(Geom_Plane) aFacePlane = new Geom_Plane(aFacePln);
606 IntAna_Quadric aQuadric(aFacePln);
607 Standard_Real UMin, UMax, VMin, VMax;
608 UMin = UMax = VMin = VMax = 0;
609 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
610 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
611 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
612 gp_Lin aLin(aPnt, aFacePln.Axis().Direction());
613 IntAna_IntConicQuad anIntAna(aLin, aQuadric);
614 const gp_Pnt& aPntOnFace = anIntAna.Point(1);
615 Standard_Real aPntU(0), aPntV(0);
616 GeomLib_Tool::Parameters(aFacePlane, aPntOnFace, Precision::Confusion(), aPntU, aPntV);
617 if(aPntU < UMin) UMin = aPntU;
618 if(aPntU > UMax) UMax = aPntU;
619 if(aPntV < VMin) VMin = aPntV;
620 if(aPntV > VMax) VMax = aPntV;
622 aResultFace.reset(new GeomAPI_Face());
623 aResultFace->setImpl(new TopoDS_Face(BRepLib_MakeFace(aFacePln, UMin, UMax, VMin, VMax).Face()));
628 //==================================================================================================
629 void GeomAlgoAPI_ShapeTools::findBounds(const std::shared_ptr<GeomAPI_Shape> theShape,
630 std::shared_ptr<GeomAPI_Vertex>& theV1,
631 std::shared_ptr<GeomAPI_Vertex>& theV2)
633 static GeomVertexPtr aVertex;
635 aVertex = GeomVertexPtr(new GeomAPI_Vertex);
636 aVertex->setImpl(new TopoDS_Vertex());
643 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
644 TopoDS_Vertex aV1, aV2;
645 ShapeAnalysis::FindBounds(aShape, aV1, aV2);
647 std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
648 aGeomV1->setImpl(new TopoDS_Vertex(aV1));
649 aGeomV2->setImpl(new TopoDS_Vertex(aV2));
655 //==================================================================================================
656 void GeomAlgoAPI_ShapeTools::makeFacesWithHoles(const std::shared_ptr<GeomAPI_Pnt> theOrigin,
657 const std::shared_ptr<GeomAPI_Dir> theDirection,
658 const ListOfShape& theWires,
659 ListOfShape& theFaces)
661 BRepBuilderAPI_MakeFace aMKFace(gp_Pln(theOrigin->impl<gp_Pnt>(),
662 theDirection->impl<gp_Dir>()));
663 TopoDS_Face aFace = aMKFace.Face();
665 BRepAlgo_FaceRestrictor aFRestrictor;
666 aFRestrictor.Init(aFace, Standard_False, Standard_True);
667 for(ListOfShape::const_iterator anIt = theWires.cbegin();
668 anIt != theWires.cend();
670 TopoDS_Wire aWire = TopoDS::Wire((*anIt)->impl<TopoDS_Shape>());
671 aFRestrictor.Add(aWire);
674 aFRestrictor.Perform();
676 if(!aFRestrictor.IsDone()) {
680 for(; aFRestrictor.More(); aFRestrictor.Next()) {
681 GeomShapePtr aShape(new GeomAPI_Shape());
682 aShape->setImpl(new TopoDS_Shape(aFRestrictor.Current()));
683 theFaces.push_back(aShape);
687 //==================================================================================================
688 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_ShapeTools::findPlane(const ListOfShape& theShapes)
690 TopoDS_Compound aCompound;
691 BRep_Builder aBuilder;
692 aBuilder.MakeCompound(aCompound);
694 for(ListOfShape::const_iterator anIt = theShapes.cbegin(); anIt != theShapes.cend(); ++anIt) {
695 aBuilder.Add(aCompound, (*anIt)->impl<TopoDS_Shape>());
697 BRepBuilderAPI_FindPlane aFindPlane(aCompound);
699 if(aFindPlane.Found() != Standard_True) {
700 return std::shared_ptr<GeomAPI_Pln>();
703 Handle(Geom_Plane) aPlane = aFindPlane.Plane();
704 gp_Pnt aLoc = aPlane->Location();
705 gp_Dir aDir = aPlane->Axis().Direction();
707 std::shared_ptr<GeomAPI_Pnt> aGeomPnt(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
708 std::shared_ptr<GeomAPI_Dir> aGeomDir(new GeomAPI_Dir(aDir.X(), aDir.Y(), aDir.Z()));
710 std::shared_ptr<GeomAPI_Pln> aPln(new GeomAPI_Pln(aGeomPnt, aGeomDir));
715 //==================================================================================================
716 bool GeomAlgoAPI_ShapeTools::isSubShapeInsideShape(
717 const std::shared_ptr<GeomAPI_Shape> theSubShape,
718 const std::shared_ptr<GeomAPI_Shape> theBaseShape)
720 if(!theSubShape.get() || !theBaseShape.get()) {
724 const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
725 const TopoDS_Shape& aBaseShape = theBaseShape->impl<TopoDS_Shape>();
727 if(aSubShape.ShapeType() == TopAbs_VERTEX) {
728 // If sub-shape is a vertex check distance to shape. If it is <= Precision::Confusion() then OK.
729 BRepExtrema_DistShapeShape aDist(aBaseShape, aSubShape);
731 if(!aDist.IsDone() || aDist.Value() > Precision::Confusion()) {
734 } else if (aSubShape.ShapeType() == TopAbs_EDGE) {
735 if(aBaseShape.ShapeType() == TopAbs_FACE) {
736 // Check that edge is on face surface.
737 TopoDS_Face aFace = TopoDS::Face(aBaseShape);
738 TopoDS_Edge anEdge = TopoDS::Edge(aSubShape);
739 BRepLib_CheckCurveOnSurface aCheck(anEdge, aFace);
741 if(!aCheck.IsDone() || aCheck.MaxDistance() > Precision::Confusion()) {
745 // Check intersections.
746 TopoDS_Vertex aV1, aV2;
747 ShapeAnalysis::FindBounds(anEdge, aV1, aV2);
748 gp_Pnt aPnt1 = BRep_Tool::Pnt(aV1);
749 gp_Pnt aPnt2 = BRep_Tool::Pnt(aV2);
750 for(TopExp_Explorer anExp(aBaseShape, TopAbs_EDGE); anExp.More(); anExp.Next()) {
751 const TopoDS_Shape& anEdgeOnFace = anExp.Current();
752 BRepExtrema_DistShapeShape aDist(anEdgeOnFace, anEdge);
754 if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
755 // Edge intersect face bound. Check that it is not on edge begin or end.
756 for(Standard_Integer anIndex = 1; anIndex <= aDist.NbSolution(); ++anIndex) {
757 gp_Pnt aPntOnSubShape = aDist.PointOnShape2(anIndex);
758 if(aPntOnSubShape.Distance(aPnt1) > Precision::Confusion()
759 && aPntOnSubShape.Distance(aPnt2) > Precision::Confusion()) {
766 // No intersections found. Edge is inside or outside face. Check it.
767 BRepAdaptor_Curve aCurveAdaptor(anEdge);
768 gp_Pnt aPointToCheck =
769 aCurveAdaptor.Value((aCurveAdaptor.FirstParameter() +
770 aCurveAdaptor.LastParameter()) / 2.0);
771 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(aFace);
772 ShapeAnalysis_Surface aSAS(aSurface);
773 gp_Pnt2d aPointOnFace = aSAS.ValueOfUV(aPointToCheck, Precision::Confusion());
774 BRepTopAdaptor_FClass2d aFClass2d(aFace, Precision::Confusion());
775 if(aFClass2d.Perform(aPointOnFace) == TopAbs_OUT) {
789 //==================================================================================================
790 bool GeomAlgoAPI_ShapeTools::isShapeValid(const std::shared_ptr<GeomAPI_Shape> theShape)
792 if(!theShape.get()) {
796 BRepCheck_Analyzer aChecker(theShape->impl<TopoDS_Shape>());
797 return (aChecker.IsValid() == Standard_True);
800 //==================================================================================================
801 std::shared_ptr<GeomAPI_Shape>
802 GeomAlgoAPI_ShapeTools::getFaceOuterWire(const std::shared_ptr<GeomAPI_Shape> theFace)
804 GeomShapePtr anOuterWire;
806 if(!theFace.get() || !theFace->isFace()) {
810 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
811 TopoDS_Wire aWire = BRepTools::OuterWire(aFace);
813 anOuterWire.reset(new GeomAPI_Shape());
814 anOuterWire->setImpl(new TopoDS_Shape(aWire));
819 //==================================================================================================
820 bool GeomAlgoAPI_ShapeTools::isParallel(const std::shared_ptr<GeomAPI_Edge> theEdge,
821 const std::shared_ptr<GeomAPI_Face> theFace)
823 if(!theEdge.get() || !theFace.get()) {
827 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
828 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
830 BRepExtrema_ExtCF anExt(anEdge, aFace);
831 return anExt.IsParallel() == Standard_True;
834 //==================================================================================================
835 std::list<std::shared_ptr<GeomAPI_Vertex> > GeomAlgoAPI_ShapeTools::intersect(
836 const std::shared_ptr<GeomAPI_Edge> theEdge, const std::shared_ptr<GeomAPI_Face> theFace,
837 const bool thePointsOutsideFace)
839 std::list<std::shared_ptr<GeomAPI_Vertex> > aResult;
840 if(!theEdge.get() || !theFace.get()) {
844 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
845 double aFirstOnCurve, aLastOnCurve;
846 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirstOnCurve, aLastOnCurve);
848 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
849 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
851 GeomAPI_IntCS anIntAlgo(aCurve, aSurf);
852 if (!anIntAlgo.IsDone())
854 // searching for points-intersection
855 for(int anIntNum = 1; anIntNum <= anIntAlgo.NbPoints() + anIntAlgo.NbSegments(); anIntNum++) {
857 if (anIntNum <= anIntAlgo.NbPoints()) {
858 anInt = anIntAlgo.Point(anIntNum);
859 } else { // take the middle point on the segment of the intersection
860 Handle(Geom_Curve) anIntCurve = anIntAlgo.Segment(anIntNum - anIntAlgo.NbPoints());
861 anIntCurve->D0((anIntCurve->FirstParameter() + anIntCurve->LastParameter()) / 2., anInt);
863 aResult.push_back(std::shared_ptr<GeomAPI_Vertex>(
864 new GeomAPI_Vertex(anInt.X(), anInt.Y(), anInt.Z())));
869 //==================================================================================================
870 void GeomAlgoAPI_ShapeTools::splitShape(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
871 const GeomAlgoAPI_ShapeTools::PointToRefsMap& thePointsInfo,
872 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
874 // to split shape at least one point should be presented in the points container
875 if (thePointsInfo.empty())
878 // General Fuse to split edge by vertices
879 BOPAlgo_Builder aBOP;
880 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
881 // Rebuild closed edge to place vertex to one of split points.
882 // This will prevent edge to be split on same vertex.
883 if (BRep_Tool::IsClosed(aBaseEdge))
885 Standard_Real aFirst, aLast;
886 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
888 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
889 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
890 gp_Pnt aPoint(aPnt->x(), aPnt->y(), aPnt->z());
892 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
893 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
894 aBaseEdge.Orientation(anOrientation);
896 aBOP.AddArgument(aBaseEdge);
898 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
899 for (; aPIt != thePointsInfo.end(); ++aPIt) {
900 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
901 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
902 aBOP.AddArgument(aV);
906 if (aBOP.HasErrors())
910 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
911 TopTools_ListIteratorOfListOfShape anIt(aSplits);
912 for (; anIt.More(); anIt.Next()) {
913 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
914 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
915 theShapes.insert(anEdge);
919 //==================================================================================================
920 void GeomAlgoAPI_ShapeTools::splitShape_p(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
921 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
922 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
924 // General Fuse to split edge by vertices
925 BOPAlgo_Builder aBOP;
926 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
927 // Rebuild closed edge to place vertex to one of split points.
928 // This will prevent edge to be split on seam vertex.
929 if (BRep_Tool::IsClosed(aBaseEdge))
931 Standard_Real aFirst, aLast;
932 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
934 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPIt = thePoints.begin();
935 gp_Pnt aPoint((*aPIt)->x(), (*aPIt)->y(), (*aPIt)->z());
937 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
938 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
939 aBaseEdge.Orientation(anOrientation);
941 aBOP.AddArgument(aBaseEdge);
943 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPtIt = thePoints.begin();
944 for (; aPtIt != thePoints.end(); ++aPtIt) {
945 std::shared_ptr<GeomAPI_Pnt> aPnt = *aPtIt;
946 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
947 aBOP.AddArgument(aV);
951 if (aBOP.HasErrors())
955 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
956 TopTools_ListIteratorOfListOfShape anIt(aSplits);
957 for (; anIt.More(); anIt.Next()) {
958 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
959 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
960 theShapes.insert(anEdge);
964 //==================================================================================================
965 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::findShape(
966 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
967 const std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
969 std::shared_ptr<GeomAPI_Shape> aResultShape;
971 if (thePoints.size() == 2) {
972 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPntIt = thePoints.begin();
973 std::shared_ptr<GeomAPI_Pnt> aFirstPoint = *aPntIt;
975 std::shared_ptr<GeomAPI_Pnt> aLastPoint = *aPntIt;
977 std::set<std::shared_ptr<GeomAPI_Shape> >::const_iterator anIt = theShapes.begin(),
978 aLast = theShapes.end();
979 for (; anIt != aLast; anIt++) {
980 GeomShapePtr aShape = *anIt;
981 std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aShape));
983 std::shared_ptr<GeomAPI_Pnt> anEdgeFirstPoint = anEdge->firstPoint();
984 std::shared_ptr<GeomAPI_Pnt> anEdgeLastPoint = anEdge->lastPoint();
985 if (anEdgeFirstPoint->isEqual(aFirstPoint) &&
986 anEdgeLastPoint->isEqual(aLastPoint))
987 aResultShape = aShape;
995 //==================================================================================================
996 #ifdef FEATURE_MULTIROTATION_TWO_DIRECTIONS
997 std::shared_ptr<GeomAPI_Dir> GeomAlgoAPI_ShapeTools::buildDirFromAxisAndShape(
998 const std::shared_ptr<GeomAPI_Shape> theBaseShape,
999 const std::shared_ptr<GeomAPI_Ax1> theAxis)
1001 gp_Pnt aCentreOfMassPoint =
1002 GeomAlgoAPI_ShapeTools::centreOfMass(theBaseShape)->impl<gp_Pnt>();
1003 Handle(Geom_Line) aLine = new Geom_Line(theAxis->impl<gp_Ax1>());
1004 GeomAPI_ProjectPointOnCurve aPrjTool(aCentreOfMassPoint, aLine);
1005 gp_Pnt aPoint = aPrjTool.NearestPoint();
1007 std::shared_ptr<GeomAPI_Dir> aDir(new GeomAPI_Dir(aCentreOfMassPoint.X()-aPoint.X(),
1008 aCentreOfMassPoint.Y()-aPoint.Y(),
1009 aCentreOfMassPoint.Z()-aPoint.Z()));
1014 //==================================================================================================
1015 static TopoDS_Wire fixParametricGaps(const TopoDS_Wire& theWire)
1017 TopoDS_Wire aFixedWire;
1018 Handle(Geom_Curve) aPrevCurve;
1019 double aPrevLastParam = 0.0;
1021 BRep_Builder aBuilder;
1022 aBuilder.MakeWire(aFixedWire);
1024 BRepTools_WireExplorer aWExp(theWire);
1025 for (; aWExp.More(); aWExp.Next()) {
1026 TopoDS_Edge anEdge = aWExp.Current();
1027 double aFirst, aLast;
1028 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
1029 if (aCurve == aPrevCurve) {
1030 // if parametric gap occurs, create new edge based on the copied curve
1031 aCurve = Handle(Geom_Curve)::DownCast(aCurve->Copy());
1032 TopoDS_Vertex aV1, aV2;
1033 TopExp::Vertices(anEdge, aV1, aV2);
1034 anEdge = TopoDS::Edge(anEdge.EmptyCopied());
1035 aBuilder.UpdateEdge(anEdge, aCurve, BRep_Tool::Tolerance(anEdge));
1036 aBuilder.Add(anEdge, aV1);
1037 aBuilder.Add(anEdge, aV2);
1040 aBuilder.Add(aFixedWire, anEdge);
1042 aPrevCurve = aCurve;
1043 aPrevLastParam = aLast;
1049 std::shared_ptr<GeomAPI_Edge> GeomAlgoAPI_ShapeTools::wireToEdge(
1050 const std::shared_ptr<GeomAPI_Wire>& theWire)
1054 TopoDS_Wire aWire = theWire->impl<TopoDS_Wire>();
1055 // Workaround: when concatenate a wire consisting of two edges based on the same B-spline curve
1056 // (non-periodic, but having equal start and end points), first of which is placed at the end
1057 // on the curve and second is placed at the start, this workaround copies second curve to avoid
1058 // treating these edges as a single curve by setting trim parameters.
1059 aWire = fixParametricGaps(aWire);
1060 TopoDS_Edge aNewEdge = BRepAlgo::ConcatenateWireC0(aWire);
1061 anEdge = GeomEdgePtr(new GeomAPI_Edge);
1062 anEdge->setImpl(new TopoDS_Edge(aNewEdge));
1067 ListOfShape GeomAlgoAPI_ShapeTools::getLowLevelSubShapes(const GeomShapePtr& theShape)
1069 ListOfShape aSubShapes;
1071 if (!theShape->isCompound() && !theShape->isCompSolid() &&
1072 !theShape->isShell() && !theShape->isWire()) {
1076 for (GeomAPI_ShapeIterator anIt(theShape); anIt.more(); anIt.next()) {
1077 GeomShapePtr aSubShape = anIt.current();
1078 if (aSubShape->isVertex() || aSubShape->isEdge() ||
1079 aSubShape->isFace() || aSubShape->isSolid()) {
1080 aSubShapes.push_back(aSubShape);
1082 aSubShapes.splice(aSubShapes.end(), getLowLevelSubShapes(aSubShape));