1 // Copyright (C) 2014-2020 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include "GeomAlgoAPI_ShapeTools.h"
22 #include "GeomAlgoAPI_SketchBuilder.h"
24 #include <GeomAPI_Ax1.h>
25 #include <GeomAPI_Edge.h>
26 #include <GeomAPI_Dir.h>
27 #include <GeomAPI_Face.h>
28 #include <GeomAPI_Pln.h>
29 #include <GeomAPI_Pnt.h>
30 #include <GeomAPI_Wire.h>
32 #include <Bnd_Box.hxx>
34 #include <BRep_Tool.hxx>
35 #include <BRep_Builder.hxx>
36 #include <BRepAlgo.hxx>
37 #include <BRepAlgo_FaceRestrictor.hxx>
38 #include <BRepAdaptor_Curve.hxx>
39 #include <BRepBndLib.hxx>
40 #include <BRepBuilderAPI_FindPlane.hxx>
41 #include <BRepBuilderAPI_MakeEdge.hxx>
42 #include <BRepBuilderAPI_MakeFace.hxx>
43 #include <BRepBuilderAPI_MakeVertex.hxx>
44 #include <BRepCheck_Analyzer.hxx>
45 #include <BRepExtrema_DistShapeShape.hxx>
46 #include <BRepExtrema_ExtCF.hxx>
47 #include <BRepGProp.hxx>
48 #include <BRepTools.hxx>
49 #include <BRepTools_WireExplorer.hxx>
50 #include <BRepTopAdaptor_FClass2d.hxx>
51 #include <BRepClass_FaceClassifier.hxx>
52 #include <BRepLib_CheckCurveOnSurface.hxx>
53 #include <BRepLProp.hxx>
55 #include <BOPAlgo_Builder.hxx>
57 #include <Geom2d_Curve.hxx>
58 #include <Geom2d_Curve.hxx>
60 #include <Geom_CylindricalSurface.hxx>
61 #include <Geom_Line.hxx>
62 #include <Geom_Plane.hxx>
63 #include <Geom_RectangularTrimmedSurface.hxx>
65 #include <GeomAPI_ProjectPointOnCurve.hxx>
66 #include <GeomAPI_ShapeIterator.h>
68 #include <GeomLib_IsPlanarSurface.hxx>
69 #include <GeomLib_Tool.hxx>
70 #include <GeomAPI_IntCS.hxx>
73 #include <GProp_GProps.hxx>
75 #include <IntAna_IntConicQuad.hxx>
76 #include <IntAna_Quadric.hxx>
78 #include <ShapeAnalysis.hxx>
79 #include <ShapeAnalysis_Surface.hxx>
82 #include <TopoDS_Edge.hxx>
83 #include <TopoDS_Face.hxx>
84 #include <TopoDS_Shape.hxx>
85 #include <TopoDS_Shell.hxx>
86 #include <TopoDS_Vertex.hxx>
87 #include <TopoDS_Builder.hxx>
90 #include <TopExp_Explorer.hxx>
92 #include <TopTools_ListIteratorOfListOfShape.hxx>
94 #include <NCollection_Vector.hxx>
96 //==================================================================================================
97 static GProp_GProps props(const TopoDS_Shape& theShape)
101 if (theShape.ShapeType() == TopAbs_EDGE || theShape.ShapeType() == TopAbs_WIRE)
103 BRepGProp::LinearProperties(theShape, aGProps);
105 else if (theShape.ShapeType() == TopAbs_FACE || theShape.ShapeType() == TopAbs_SHELL)
107 const Standard_Real anEps = 1.e-6;
108 BRepGProp::SurfaceProperties(theShape, aGProps, anEps);
110 else if (theShape.ShapeType() == TopAbs_SOLID || theShape.ShapeType() == TopAbs_COMPSOLID)
112 BRepGProp::VolumeProperties(theShape, aGProps);
114 else if (theShape.ShapeType() == TopAbs_COMPOUND)
116 for (TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next())
118 aGProps.Add(props(anIt.Value()));
125 //==================================================================================================
126 double GeomAlgoAPI_ShapeTools::length(const std::shared_ptr<GeomAPI_Shape> theShape)
128 GProp_GProps aGProps;
129 if(!theShape.get()) {
132 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
133 if(aShape.IsNull()) {
137 BRepGProp::LinearProperties(aShape, aGProps, Standard_True);
138 return aGProps.Mass();
141 //==================================================================================================
142 double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theShape)
144 if(!theShape.get()) {
147 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
148 if(aShape.IsNull()) {
151 const Standard_Real anEps = 1.e-6;
152 double aVolume = 0.0;
153 for (TopExp_Explorer anExp(aShape, TopAbs_SOLID); anExp.More(); anExp.Next()) {
154 GProp_GProps aGProps;
155 BRepGProp::VolumeProperties(anExp.Current(), aGProps, anEps);
156 aVolume += aGProps.Mass();
161 //==================================================================================================
162 double GeomAlgoAPI_ShapeTools::area (const std::shared_ptr<GeomAPI_Shape> theShape)
164 GProp_GProps aGProps;
165 if(!theShape.get()) {
168 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
169 if(aShape.IsNull()) {
172 const Standard_Real anEps = 1.e-6;
174 BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
175 return aGProps.Mass();
178 //==================================================================================================
179 std::shared_ptr<GeomAPI_Pnt>
180 GeomAlgoAPI_ShapeTools::centreOfMass(const std::shared_ptr<GeomAPI_Shape> theShape)
182 GProp_GProps aGProps;
184 return std::shared_ptr<GeomAPI_Pnt>();
186 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
187 if(aShape.IsNull()) {
188 return std::shared_ptr<GeomAPI_Pnt>();
191 if(aShape.ShapeType() == TopAbs_VERTEX) {
192 aCentre = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
194 aGProps = props(aShape);
195 aCentre = aGProps.CentreOfMass();
198 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aCentre.X(), aCentre.Y(), aCentre.Z()));
201 //==================================================================================================
202 double GeomAlgoAPI_ShapeTools::radius(const std::shared_ptr<GeomAPI_Face>& theCylinder)
204 double aRadius = -1.0;
205 if (theCylinder->isCylindrical()) {
206 const TopoDS_Shape& aShape = theCylinder->impl<TopoDS_Shape>();
207 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(TopoDS::Face(aShape));
208 Handle(Geom_CylindricalSurface) aCyl = Handle(Geom_CylindricalSurface)::DownCast(aSurf);
210 aRadius = aCyl->Radius();
215 //==================================================================================================
216 double GeomAlgoAPI_ShapeTools::minimalDistance(const GeomShapePtr& theShape1,
217 const GeomShapePtr& theShape2)
219 const TopoDS_Shape& aShape1 = theShape1->impl<TopoDS_Shape>();
220 const TopoDS_Shape& aShape2 = theShape2->impl<TopoDS_Shape>();
222 BRepExtrema_DistShapeShape aDist(aShape1, aShape2);
224 return aDist.IsDone() ? aDist.Value() : Precision::Infinite();
227 //==================================================================================================
228 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
229 const std::shared_ptr<GeomAPI_Shape> theCompound,
230 const GeomAPI_Shape::ShapeType theType,
231 ListOfShape& theResuts)
234 ListOfShape aResCombinedShapes;
235 ListOfShape aResFreeShapes;
237 GeomShapePtr aResult = theCompound;
239 if(!theCompound.get()) {
243 if(theType != GeomAPI_Shape::SHELL && theType != GeomAPI_Shape::COMPSOLID) {
247 TopAbs_ShapeEnum aTS = TopAbs_EDGE;
248 TopAbs_ShapeEnum aTA = TopAbs_FACE;
249 if(theType == GeomAPI_Shape::COMPSOLID) {
254 // map from the resulting shapes to minimal index of the used shape from theCompound list
255 std::map<GeomShapePtr, int> anInputOrder;
256 // map from ancestors-shapes to the index of shapes in theCompound
257 NCollection_DataMap<TopoDS_Shape, int> anAncestorsOrder;
261 const TopoDS_Shape& aShapesComp = theCompound->impl<TopoDS_Shape>();
262 for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next(), anOrder++) {
263 const TopoDS_Shape& aShape = anIter.Value();
264 if(aShape.ShapeType() > aTA) {
265 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
266 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
267 aResFreeShapes.push_back(aGeomShape);
268 anInputOrder[aGeomShape] = anOrder;
270 for(TopExp_Explorer anExp(aShape, aTA); anExp.More(); anExp.Next()) {
271 anAncestorsOrder.Bind(anExp.Current(), anOrder);
276 // Map sub-shapes and shapes.
277 TopTools_IndexedDataMapOfShapeListOfShape aMapSA;
278 TopExp::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
279 if(aMapSA.IsEmpty()) {
284 // Get all shapes with common sub-shapes and free shapes.
285 NCollection_Map<TopoDS_Shape> aFreeShapes;
286 NCollection_Vector<NCollection_Map<TopoDS_Shape>> aShapesWithCommonSubshapes;
287 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
288 anIter(aMapSA); anIter.More(); anIter.Next()) {
289 TopTools_ListOfShape& aListOfShape = anIter.ChangeValue();
290 if(aListOfShape.IsEmpty()) {
293 else if(aListOfShape.Size() == 1) {
294 const TopoDS_Shape& aF = aListOfShape.First();
296 aListOfShape.Clear();
298 NCollection_List<TopoDS_Shape> aTempList;
299 NCollection_Map<TopoDS_Shape> aTempMap;
300 for (TopTools_ListOfShape::Iterator aListIt(aListOfShape); aListIt.More(); aListIt.Next()) {
301 aTempList.Append(aListIt.Value());
302 aTempMap.Add(aListIt.Value());
303 aFreeShapes.Remove(aListIt.Value());
305 aListOfShape.Clear();
306 for(NCollection_List<TopoDS_Shape>::Iterator
307 aTempIter(aTempList); aTempIter.More(); aTempIter.Next()) {
308 const TopoDS_Shape& aTempShape = aTempIter.Value();
309 for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
310 anIter2(aMapSA); anIter2.More(); anIter2.Next()) {
311 TopTools_ListOfShape& aTempListOfShape = anIter2.ChangeValue();
312 if(aTempListOfShape.IsEmpty()) {
314 } else if(aTempListOfShape.Size() == 1 && aTempListOfShape.First() == aTempShape) {
315 aTempListOfShape.Clear();
316 } else if(aTempListOfShape.Size() > 1) {
317 TopTools_ListOfShape::Iterator anIt1(aTempListOfShape);
318 for (; anIt1.More(); anIt1.Next()) {
319 if (anIt1.Value() == aTempShape) {
320 TopTools_ListOfShape::Iterator anIt2(aTempListOfShape);
321 for (; anIt2.More(); anIt2.Next())
323 if (anIt2.Value() != anIt1.Value()) {
324 if (aTempMap.Add(anIt2.Value())) {
325 aTempList.Append(anIt2.Value());
326 aFreeShapes.Remove(anIt2.Value());
330 aTempListOfShape.Clear();
337 aShapesWithCommonSubshapes.Append(aTempMap);
341 // Combine shapes with common sub-shapes.
342 for(NCollection_Vector<NCollection_Map<TopoDS_Shape>>::Iterator
343 anIter(aShapesWithCommonSubshapes); anIter.More(); anIter.Next()) {
345 TopoDS_CompSolid aCSolid;
346 TopoDS_Builder aBuilder;
349 GeomAPI_Shape::COMPSOLID ? aBuilder.MakeCompSolid(aCSolid) : aBuilder.MakeShell(aShell);
350 NCollection_Map<TopoDS_Shape>& aShapesMap = anIter.ChangeValue();
351 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
352 const TopoDS_Shape& aShape = anExp.Current();
353 if(aShapesMap.Contains(aShape)) {
355 GeomAPI_Shape::COMPSOLID ? aBuilder.Add(aCSolid, aShape) : aBuilder.Add(aShell, aShape);
356 aShapesMap.Remove(aShape);
357 int aThisOrder = anAncestorsOrder.Find(aShape);
358 if (anOrder == -1 || aThisOrder < anOrder)
359 anOrder = aThisOrder; // take the minimum order position
362 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
363 TopoDS_Shape* aSh = theType == GeomAPI_Shape::COMPSOLID ? new TopoDS_Shape(aCSolid) :
364 new TopoDS_Shape(aShell);
365 aGeomShape->setImpl<TopoDS_Shape>(aSh);
366 aResCombinedShapes.push_back(aGeomShape);
367 anInputOrder[aGeomShape] = anOrder;
370 // Adding free shapes.
371 for(TopExp_Explorer anExp(aShapesComp, aTA); anExp.More(); anExp.Next()) {
372 const TopoDS_Shape& aShape = anExp.Current();
373 if(aFreeShapes.Contains(aShape)) {
374 std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
375 aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
376 aResFreeShapes.push_back(aGeomShape);
377 anInputOrder[aGeomShape] = anAncestorsOrder.Find(aShape);
381 if(aResCombinedShapes.size() == 1 && aResFreeShapes.size() == 0) {
382 aResult = aResCombinedShapes.front();
383 theResuts.push_back(aResult);
384 } else if(aResCombinedShapes.size() == 0 && aResFreeShapes.size() == 1) {
385 aResult = aResFreeShapes.front();
386 theResuts.push_back(aResult);
388 TopoDS_Compound aResultComp;
389 TopoDS_Builder aBuilder;
390 aBuilder.MakeCompound(aResultComp);
391 // put to result compound and result list in accordance to the order numbers
392 std::map<GeomShapePtr, int>::iterator anInputIter = anInputOrder.begin();
393 std::map<int, GeomShapePtr> aNums;
394 for(; anInputIter != anInputOrder.end(); anInputIter++)
395 aNums[anInputIter->second] = anInputIter->first;
396 std::map<int, GeomShapePtr>::iterator aNumsIter = aNums.begin();
397 for(; aNumsIter != aNums.end(); aNumsIter++) {
398 aBuilder.Add(aResultComp, (aNumsIter->second)->impl<TopoDS_Shape>());
399 theResuts.push_back(aNumsIter->second);
401 aResult->setImpl(new TopoDS_Shape(aResultComp));
407 //==================================================================================================
408 static void addSimpleShapeToList(const TopoDS_Shape& theShape,
409 NCollection_List<TopoDS_Shape>& theList)
411 if(theShape.IsNull()) {
415 if(theShape.ShapeType() == TopAbs_COMPOUND) {
416 for(TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next()) {
417 addSimpleShapeToList(anIt.Value(), theList);
420 theList.Append(theShape);
424 //==================================================================================================
425 static TopoDS_Compound makeCompound(const NCollection_List<TopoDS_Shape> theShapes)
427 TopoDS_Compound aCompound;
429 BRep_Builder aBuilder;
430 aBuilder.MakeCompound(aCompound);
432 for(NCollection_List<TopoDS_Shape>::Iterator anIt(theShapes); anIt.More(); anIt.Next()) {
433 aBuilder.Add(aCompound, anIt.Value());
439 //==================================================================================================
440 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
441 const std::shared_ptr<GeomAPI_Shape> theCompound)
443 GeomShapePtr aResult = theCompound;
445 if (!theCompound.get()) {
449 TopoDS_Shape anInShape = aResult->impl<TopoDS_Shape>();
450 NCollection_List<TopoDS_Shape> anUngroupedShapes, aStillUngroupedShapes;
451 addSimpleShapeToList(anInShape, anUngroupedShapes);
453 // Iterate over all shapes and find shapes with shared vertices.
454 TopTools_ListOfShape allVertices;
455 TopTools_DataMapOfShapeListOfShape aVertexShapesMap;
456 for (NCollection_List<TopoDS_Shape>::Iterator aShapesIt(anUngroupedShapes);
459 const TopoDS_Shape& aShape = aShapesIt.Value();
460 for (TopExp_Explorer aShapeExp(aShape, TopAbs_VERTEX);
463 const TopoDS_Shape& aVertex = aShapeExp.Current();
464 if (!aVertexShapesMap.IsBound(aVertex)) {
465 NCollection_List<TopoDS_Shape> aList;
466 aList.Append(aShape);
467 allVertices.Append(aVertex);
468 aVertexShapesMap.Bind(aVertex, aList);
471 if (!aVertexShapesMap.ChangeFind(aVertex).Contains(aShape)) {
472 aVertexShapesMap.ChangeFind(aVertex).Append(aShape);
478 // Iterate over the map and group shapes.
479 NCollection_Vector<TopTools_MapOfShape> aGroups; // groups of shapes connected by vertices
480 while (!allVertices.IsEmpty()) {
481 // Get first group of shapes in map, and then unbind it.
482 const TopoDS_Shape& aKey = allVertices.First();
483 TopTools_ListOfShape aConnectedShapes = aVertexShapesMap.Find(aKey);
484 aVertexShapesMap.UnBind(aKey);
485 allVertices.Remove(aKey);
486 // Iterate over shapes in this group and add to it shapes from groups in map.
487 for (TopTools_ListOfShape::Iterator aConnectedIt(aConnectedShapes);
488 aConnectedIt.More(); aConnectedIt.Next()) {
489 const TopoDS_Shape& aConnected = aConnectedIt.Value();
490 TopTools_ListOfShape aKeysToUnbind;
491 for (TopTools_ListOfShape::Iterator aKeysIt(allVertices);
494 const TopTools_ListOfShape& anOtherConnected = aVertexShapesMap(aKeysIt.Value());
495 if (!anOtherConnected.Contains(aConnected)) {
496 // Other connected group does not contain shape from our connected group
499 // Other is connected to our, so add them to our connected
500 for (TopTools_ListOfShape::Iterator anOtherIt(anOtherConnected);
503 const TopoDS_Shape& aShape = anOtherIt.Value();
504 if (!aConnectedShapes.Contains(aShape)) {
505 aConnectedShapes.Append(aShape);
508 // Save key to unbind from this map.
509 aKeysToUnbind.Append(aKeysIt.Value());
511 // Unbind groups from map that we added to our group.
512 for (TopTools_ListOfShape::Iterator aKeysIt(aKeysToUnbind);
515 aVertexShapesMap.UnBind(aKeysIt.Value());
516 allVertices.Remove(aKeysIt.Value());
519 // Sort shapes from the most complicated to the simplest ones
520 TopTools_MapOfShape aSortedGroup;
521 for (int aST = TopAbs_COMPOUND; aST <= TopAbs_SHAPE; ++aST) {
522 TopTools_ListOfShape::Iterator anIt(aConnectedShapes);
523 while (anIt.More()) {
524 if (anIt.Value().ShapeType() == aST) {
525 aSortedGroup.Add(anIt.Value());
526 aConnectedShapes.Remove(anIt);
533 aGroups.Append(aSortedGroup);
536 TopoDS_Compound aCompound;
537 BRep_Builder aBuilder;
538 aBuilder.MakeCompound(aCompound);
540 for (NCollection_Vector<TopTools_MapOfShape>::Iterator anIt(aGroups); anIt.More(); anIt.Next()) {
541 const TopTools_MapOfShape& aGroup = anIt.ChangeValue();
542 GeomShapePtr aGeomShape(new GeomAPI_Shape());
543 if(aGroup.Size() == 1) {
544 TopTools_MapOfShape::Iterator aOneShapeIter(aGroup);
545 aGeomShape->setImpl(new TopoDS_Shape(aOneShapeIter.Value()));
547 // make sub-shapes in the group have order same as in original shape
548 TopTools_ListOfShape anOrderedGoup;
549 NCollection_List<TopoDS_Shape>::Iterator anUngrouped(anUngroupedShapes);
550 for (; anUngrouped.More(); anUngrouped.Next()) {
551 if (aGroup.Contains(anUngrouped.Value()))
552 anOrderedGoup.Append(anUngrouped.Value());
554 aGeomShape->setImpl(new TopoDS_Shape(makeCompound(anOrderedGoup)));
555 aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
556 GeomAPI_Shape::COMPSOLID,
559 aBuilder.Add(aCompound, aGeomShape->impl<TopoDS_Shape>());
562 if(!aCompound.IsNull()) {
563 aResult->setImpl(new TopoDS_Shape(aCompound));
569 //==================================================================================================
570 bool GeomAlgoAPI_ShapeTools::hasSharedTopology(const ListOfShape& theShapes,
571 const GeomAPI_Shape::ShapeType theShapeType)
573 TopTools_IndexedMapOfShape aSubs;
574 for (ListOfShape::const_iterator anIt = theShapes.begin(); anIt != theShapes.end(); ++anIt) {
575 TopTools_IndexedMapOfShape aCurSubs;
576 TopExp::MapShapes((*anIt)->impl<TopoDS_Shape>(), (TopAbs_ShapeEnum)theShapeType, aCurSubs);
577 for (TopTools_IndexedMapOfShape::Iterator aSubIt(aCurSubs); aSubIt.More(); aSubIt.Next()) {
578 if (aSubs.Contains(aSubIt.Value()))
581 aSubs.Add(aSubIt.Value());
587 //==================================================================================================
588 std::list<std::shared_ptr<GeomAPI_Pnt> >
589 GeomAlgoAPI_ShapeTools::getBoundingBox(const ListOfShape& theShapes, const double theEnlarge)
591 // Bounding box of all objects.
595 for (ListOfShape::const_iterator
596 anObjectsIt = theShapes.begin(); anObjectsIt != theShapes.end(); anObjectsIt++) {
597 const TopoDS_Shape& aShape = (*anObjectsIt)->impl<TopoDS_Shape>();
598 BRepBndLib::Add(aShape, aBndBox);
601 if(theEnlarge != 0.0) {
602 // We enlarge bounding box just to be sure that plane will be large enough to cut all objects.
603 aBndBox.Enlarge(theEnlarge);
606 Standard_Real aXArr[2] = {aBndBox.CornerMin().X(), aBndBox.CornerMax().X()};
607 Standard_Real aYArr[2] = {aBndBox.CornerMin().Y(), aBndBox.CornerMax().Y()};
608 Standard_Real aZArr[2] = {aBndBox.CornerMin().Z(), aBndBox.CornerMax().Z()};
609 std::list<std::shared_ptr<GeomAPI_Pnt> > aResultPoints;
610 for(int i = 0; i < 2; i++) {
611 for(int j = 0; j < 2; j++) {
612 for(int k = 0; k < 2; k++) {
613 std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aXArr[i], aYArr[j], aZArr[k]));
614 aResultPoints.push_back(aPnt);
619 return aResultPoints;
622 //==================================================================================================
623 std::shared_ptr<GeomAPI_Face> GeomAlgoAPI_ShapeTools::fitPlaneToBox(
624 const std::shared_ptr<GeomAPI_Shape> thePlane,
625 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints)
627 std::shared_ptr<GeomAPI_Face> aResultFace;
629 if(!thePlane.get()) {
633 const TopoDS_Shape& aShape = thePlane->impl<TopoDS_Shape>();
634 if(aShape.ShapeType() != TopAbs_FACE) {
638 TopoDS_Face aFace = TopoDS::Face(aShape);
639 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
644 GeomLib_IsPlanarSurface isPlanar(aSurf);
645 if(!isPlanar.IsPlanar()) {
649 if(thePoints.size() != 8) {
653 const gp_Pln& aFacePln = isPlanar.Plan();
654 Handle(Geom_Plane) aFacePlane = new Geom_Plane(aFacePln);
655 IntAna_Quadric aQuadric(aFacePln);
656 Standard_Real UMin, UMax, VMin, VMax;
657 UMin = UMax = VMin = VMax = 0;
658 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
659 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
660 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
661 gp_Lin aLin(aPnt, aFacePln.Axis().Direction());
662 IntAna_IntConicQuad anIntAna(aLin, aQuadric);
663 const gp_Pnt& aPntOnFace = anIntAna.Point(1);
664 Standard_Real aPntU(0), aPntV(0);
665 GeomLib_Tool::Parameters(aFacePlane, aPntOnFace, Precision::Confusion(), aPntU, aPntV);
666 if(aPntU < UMin) UMin = aPntU;
667 if(aPntU > UMax) UMax = aPntU;
668 if(aPntV < VMin) VMin = aPntV;
669 if(aPntV > VMax) VMax = aPntV;
671 aResultFace.reset(new GeomAPI_Face());
672 aResultFace->setImpl(new TopoDS_Face(BRepLib_MakeFace(aFacePln, UMin, UMax, VMin, VMax).Face()));
677 //==================================================================================================
678 void GeomAlgoAPI_ShapeTools::findBounds(const std::shared_ptr<GeomAPI_Shape> theShape,
679 std::shared_ptr<GeomAPI_Vertex>& theV1,
680 std::shared_ptr<GeomAPI_Vertex>& theV2)
682 static GeomVertexPtr aVertex;
684 aVertex = GeomVertexPtr(new GeomAPI_Vertex);
685 aVertex->setImpl(new TopoDS_Vertex());
692 const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
693 TopoDS_Vertex aV1, aV2;
694 ShapeAnalysis::FindBounds(aShape, aV1, aV2);
696 std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
697 aGeomV1->setImpl(new TopoDS_Vertex(aV1));
698 aGeomV2->setImpl(new TopoDS_Vertex(aV2));
704 //==================================================================================================
705 void GeomAlgoAPI_ShapeTools::makeFacesWithHoles(const std::shared_ptr<GeomAPI_Pnt> theOrigin,
706 const std::shared_ptr<GeomAPI_Dir> theDirection,
707 const ListOfShape& theWires,
708 ListOfShape& theFaces)
710 BRepBuilderAPI_MakeFace aMKFace(gp_Pln(theOrigin->impl<gp_Pnt>(),
711 theDirection->impl<gp_Dir>()));
712 TopoDS_Face aFace = aMKFace.Face();
714 BRepAlgo_FaceRestrictor aFRestrictor;
715 aFRestrictor.Init(aFace, Standard_False, Standard_True);
716 for(ListOfShape::const_iterator anIt = theWires.cbegin();
717 anIt != theWires.cend();
719 TopoDS_Wire aWire = TopoDS::Wire((*anIt)->impl<TopoDS_Shape>());
720 aFRestrictor.Add(aWire);
723 aFRestrictor.Perform();
725 if(!aFRestrictor.IsDone()) {
729 for(; aFRestrictor.More(); aFRestrictor.Next()) {
730 GeomShapePtr aShape(new GeomAPI_Shape());
731 aShape->setImpl(new TopoDS_Shape(aFRestrictor.Current()));
732 theFaces.push_back(aShape);
736 //==================================================================================================
737 std::shared_ptr<GeomAPI_Pln> GeomAlgoAPI_ShapeTools::findPlane(const ListOfShape& theShapes)
739 TopoDS_Compound aCompound;
740 BRep_Builder aBuilder;
741 aBuilder.MakeCompound(aCompound);
743 for(ListOfShape::const_iterator anIt = theShapes.cbegin(); anIt != theShapes.cend(); ++anIt) {
744 aBuilder.Add(aCompound, (*anIt)->impl<TopoDS_Shape>());
746 BRepBuilderAPI_FindPlane aFindPlane(aCompound);
748 if(aFindPlane.Found() != Standard_True) {
749 return std::shared_ptr<GeomAPI_Pln>();
752 Handle(Geom_Plane) aPlane = aFindPlane.Plane();
753 gp_Pnt aLoc = aPlane->Location();
754 gp_Dir aDir = aPlane->Axis().Direction();
756 std::shared_ptr<GeomAPI_Pnt> aGeomPnt(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
757 std::shared_ptr<GeomAPI_Dir> aGeomDir(new GeomAPI_Dir(aDir.X(), aDir.Y(), aDir.Z()));
759 std::shared_ptr<GeomAPI_Pln> aPln(new GeomAPI_Pln(aGeomPnt, aGeomDir));
764 //==================================================================================================
765 bool GeomAlgoAPI_ShapeTools::isSubShapeInsideShape(
766 const std::shared_ptr<GeomAPI_Shape> theSubShape,
767 const std::shared_ptr<GeomAPI_Shape> theBaseShape)
769 if(!theSubShape.get() || !theBaseShape.get()) {
773 const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
774 const TopoDS_Shape& aBaseShape = theBaseShape->impl<TopoDS_Shape>();
776 if(aSubShape.ShapeType() == TopAbs_VERTEX) {
777 // If sub-shape is a vertex check distance to shape. If it is <= Precision::Confusion() then OK.
778 BRepExtrema_DistShapeShape aDist(aBaseShape, aSubShape);
780 if(!aDist.IsDone() || aDist.Value() > Precision::Confusion()) {
783 } else if (aSubShape.ShapeType() == TopAbs_EDGE) {
784 if(aBaseShape.ShapeType() == TopAbs_FACE) {
785 // Check that edge is on face surface.
786 TopoDS_Face aFace = TopoDS::Face(aBaseShape);
787 TopoDS_Edge anEdge = TopoDS::Edge(aSubShape);
788 BRepLib_CheckCurveOnSurface aCheck(anEdge, aFace);
790 if(!aCheck.IsDone() || aCheck.MaxDistance() > Precision::Confusion()) {
794 // Check intersections.
795 TopoDS_Vertex aV1, aV2;
796 ShapeAnalysis::FindBounds(anEdge, aV1, aV2);
797 gp_Pnt aPnt1 = BRep_Tool::Pnt(aV1);
798 gp_Pnt aPnt2 = BRep_Tool::Pnt(aV2);
799 for(TopExp_Explorer anExp(aBaseShape, TopAbs_EDGE); anExp.More(); anExp.Next()) {
800 const TopoDS_Shape& anEdgeOnFace = anExp.Current();
801 BRepExtrema_DistShapeShape aDist(anEdgeOnFace, anEdge);
803 if(aDist.IsDone() && aDist.Value() <= Precision::Confusion()) {
804 // Edge intersect face bound. Check that it is not on edge begin or end.
805 for(Standard_Integer anIndex = 1; anIndex <= aDist.NbSolution(); ++anIndex) {
806 gp_Pnt aPntOnSubShape = aDist.PointOnShape2(anIndex);
807 if(aPntOnSubShape.Distance(aPnt1) > Precision::Confusion()
808 && aPntOnSubShape.Distance(aPnt2) > Precision::Confusion()) {
815 // No intersections found. Edge is inside or outside face. Check it.
816 BRepAdaptor_Curve aCurveAdaptor(anEdge);
817 gp_Pnt aPointToCheck =
818 aCurveAdaptor.Value((aCurveAdaptor.FirstParameter() +
819 aCurveAdaptor.LastParameter()) / 2.0);
820 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(aFace);
821 ShapeAnalysis_Surface aSAS(aSurface);
822 gp_Pnt2d aPointOnFace = aSAS.ValueOfUV(aPointToCheck, Precision::Confusion());
823 BRepTopAdaptor_FClass2d aFClass2d(aFace, Precision::Confusion());
824 if(aFClass2d.Perform(aPointOnFace) == TopAbs_OUT) {
838 //==================================================================================================
839 bool GeomAlgoAPI_ShapeTools::isShapeValid(const std::shared_ptr<GeomAPI_Shape> theShape)
841 if(!theShape.get()) {
845 BRepCheck_Analyzer aChecker(theShape->impl<TopoDS_Shape>());
846 return (aChecker.IsValid() == Standard_True);
849 //==================================================================================================
850 std::shared_ptr<GeomAPI_Shape>
851 GeomAlgoAPI_ShapeTools::getFaceOuterWire(const std::shared_ptr<GeomAPI_Shape> theFace)
853 GeomShapePtr anOuterWire;
855 if(!theFace.get() || !theFace->isFace()) {
859 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
860 TopoDS_Wire aWire = BRepTools::OuterWire(aFace);
862 anOuterWire.reset(new GeomAPI_Shape());
863 anOuterWire->setImpl(new TopoDS_Shape(aWire));
868 //==================================================================================================
869 static bool boundaryOfEdge(const std::shared_ptr<GeomAPI_Edge> theEdge,
870 const std::shared_ptr<GeomAPI_Vertex> theVertex,
873 GeomPointPtr aPoint = theVertex->point();
874 GeomPointPtr aFirstPnt = theEdge->firstPoint();
875 double aFirstPntTol = theEdge->firstPointTolerance();
876 GeomPointPtr aLastPnt = theEdge->lastPoint();
877 double aLastPntTol = theEdge->lastPointTolerance();
879 double aFirst, aLast;
880 theEdge->getRange(aFirst, aLast);
882 bool isFirst = aPoint->distance(aFirstPnt) <= aFirstPntTol;
883 bool isLast = aPoint->distance(aLastPnt) <= aLastPntTol;
889 return isFirst != isLast;
892 bool GeomAlgoAPI_ShapeTools::isTangent(const std::shared_ptr<GeomAPI_Edge> theEdge1,
893 const std::shared_ptr<GeomAPI_Edge> theEdge2,
894 const std::shared_ptr<GeomAPI_Vertex> theTgPoint)
896 double aParE1 = 0, aParE2 = 0;
897 if (!boundaryOfEdge(theEdge1, theTgPoint, aParE1) ||
898 !boundaryOfEdge(theEdge2, theTgPoint, aParE2))
901 BRepAdaptor_Curve aC1(theEdge1->impl<TopoDS_Edge>());
902 BRepAdaptor_Curve aC2(theEdge2->impl<TopoDS_Edge>());
903 return BRepLProp::Continuity(aC1, aC2, aParE1, aParE2) >= GeomAbs_G1;
906 //==================================================================================================
907 bool GeomAlgoAPI_ShapeTools::isParallel(const std::shared_ptr<GeomAPI_Edge> theEdge,
908 const std::shared_ptr<GeomAPI_Face> theFace)
910 if(!theEdge.get() || !theFace.get()) {
914 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
915 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
917 BRepExtrema_ExtCF anExt(anEdge, aFace);
918 return anExt.IsParallel() == Standard_True;
921 //==================================================================================================
922 std::list<std::shared_ptr<GeomAPI_Vertex> > GeomAlgoAPI_ShapeTools::intersect(
923 const std::shared_ptr<GeomAPI_Edge> theEdge, const std::shared_ptr<GeomAPI_Face> theFace)
925 std::list<std::shared_ptr<GeomAPI_Vertex> > aResult;
926 if(!theEdge.get() || !theFace.get()) {
930 TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
931 double aFirstOnCurve, aLastOnCurve;
932 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirstOnCurve, aLastOnCurve);
934 TopoDS_Face aFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
935 Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace);
937 GeomAPI_IntCS anIntAlgo(aCurve, aSurf);
938 if (!anIntAlgo.IsDone())
940 // searching for points-intersection
941 for(int anIntNum = 1; anIntNum <= anIntAlgo.NbPoints() + anIntAlgo.NbSegments(); anIntNum++) {
943 if (anIntNum <= anIntAlgo.NbPoints()) {
944 anInt = anIntAlgo.Point(anIntNum);
945 } else { // take the middle point on the segment of the intersection
946 Handle(Geom_Curve) anIntCurve = anIntAlgo.Segment(anIntNum - anIntAlgo.NbPoints());
947 anIntCurve->D0((anIntCurve->FirstParameter() + anIntCurve->LastParameter()) / 2., anInt);
949 aResult.push_back(std::shared_ptr<GeomAPI_Vertex>(
950 new GeomAPI_Vertex(anInt.X(), anInt.Y(), anInt.Z())));
955 //==================================================================================================
956 void GeomAlgoAPI_ShapeTools::splitShape(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
957 const GeomAlgoAPI_ShapeTools::PointToRefsMap& thePointsInfo,
958 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
960 // to split shape at least one point should be presented in the points container
961 if (thePointsInfo.empty())
964 // General Fuse to split edge by vertices
965 BOPAlgo_Builder aBOP;
966 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
967 // Rebuild closed edge to place vertex to one of split points.
968 // This will prevent edge to be split on same vertex.
969 if (BRep_Tool::IsClosed(aBaseEdge))
971 Standard_Real aFirst, aLast;
972 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
974 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
975 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
976 gp_Pnt aPoint(aPnt->x(), aPnt->y(), aPnt->z());
978 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
979 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
980 aBaseEdge.Orientation(anOrientation);
982 aBOP.AddArgument(aBaseEdge);
984 PointToRefsMap::const_iterator aPIt = thePointsInfo.begin();
985 for (; aPIt != thePointsInfo.end(); ++aPIt) {
986 std::shared_ptr<GeomAPI_Pnt> aPnt = aPIt->first;
987 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
988 aBOP.AddArgument(aV);
992 if (aBOP.HasErrors())
996 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
997 TopTools_ListIteratorOfListOfShape anIt(aSplits);
998 for (; anIt.More(); anIt.Next()) {
999 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
1000 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
1001 theShapes.insert(anEdge);
1005 //==================================================================================================
1006 void GeomAlgoAPI_ShapeTools::splitShape_p(const std::shared_ptr<GeomAPI_Shape>& theBaseShape,
1007 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1008 std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
1010 // General Fuse to split edge by vertices
1011 BOPAlgo_Builder aBOP;
1012 TopoDS_Edge aBaseEdge = theBaseShape->impl<TopoDS_Edge>();
1013 // Rebuild closed edge to place vertex to one of split points.
1014 // This will prevent edge to be split on seam vertex.
1015 if (BRep_Tool::IsClosed(aBaseEdge))
1017 Standard_Real aFirst, aLast;
1018 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(aBaseEdge, aFirst, aLast);
1020 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPIt = thePoints.begin();
1021 gp_Pnt aPoint((*aPIt)->x(), (*aPIt)->y(), (*aPIt)->z());
1023 TopAbs_Orientation anOrientation = aBaseEdge.Orientation();
1024 aBaseEdge = BRepBuilderAPI_MakeEdge(aCurve, aPoint, aPoint).Edge();
1025 aBaseEdge.Orientation(anOrientation);
1027 aBOP.AddArgument(aBaseEdge);
1029 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPtIt = thePoints.begin();
1030 for (; aPtIt != thePoints.end(); ++aPtIt) {
1031 std::shared_ptr<GeomAPI_Pnt> aPnt = *aPtIt;
1032 TopoDS_Vertex aV = BRepBuilderAPI_MakeVertex(gp_Pnt(aPnt->x(), aPnt->y(), aPnt->z()));
1033 aBOP.AddArgument(aV);
1037 if (aBOP.HasErrors())
1041 const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
1042 TopTools_ListIteratorOfListOfShape anIt(aSplits);
1043 for (; anIt.More(); anIt.Next()) {
1044 std::shared_ptr<GeomAPI_Shape> anEdge(new GeomAPI_Shape);
1045 anEdge->setImpl(new TopoDS_Shape(anIt.Value()));
1046 theShapes.insert(anEdge);
1050 //==================================================================================================
1051 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::findShape(
1052 const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1053 const std::set<std::shared_ptr<GeomAPI_Shape> >& theShapes)
1055 std::shared_ptr<GeomAPI_Shape> aResultShape;
1057 if (thePoints.size() == 2) {
1058 std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator aPntIt = thePoints.begin();
1059 std::shared_ptr<GeomAPI_Pnt> aFirstPoint = *aPntIt;
1061 std::shared_ptr<GeomAPI_Pnt> aLastPoint = *aPntIt;
1063 std::set<std::shared_ptr<GeomAPI_Shape> >::const_iterator anIt = theShapes.begin(),
1064 aLast = theShapes.end();
1065 for (; anIt != aLast; anIt++) {
1066 GeomShapePtr aShape = *anIt;
1067 std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge(aShape));
1069 std::shared_ptr<GeomAPI_Pnt> anEdgeFirstPoint = anEdge->firstPoint();
1070 std::shared_ptr<GeomAPI_Pnt> anEdgeLastPoint = anEdge->lastPoint();
1071 if (anEdgeFirstPoint->isEqual(aFirstPoint) &&
1072 anEdgeLastPoint->isEqual(aLastPoint))
1073 aResultShape = aShape;
1078 return aResultShape;
1081 //==================================================================================================
1082 #ifdef FEATURE_MULTIROTATION_TWO_DIRECTIONS
1083 std::shared_ptr<GeomAPI_Dir> GeomAlgoAPI_ShapeTools::buildDirFromAxisAndShape(
1084 const std::shared_ptr<GeomAPI_Shape> theBaseShape,
1085 const std::shared_ptr<GeomAPI_Ax1> theAxis)
1087 gp_Pnt aCentreOfMassPoint =
1088 GeomAlgoAPI_ShapeTools::centreOfMass(theBaseShape)->impl<gp_Pnt>();
1089 Handle(Geom_Line) aLine = new Geom_Line(theAxis->impl<gp_Ax1>());
1090 GeomAPI_ProjectPointOnCurve aPrjTool(aCentreOfMassPoint, aLine);
1091 gp_Pnt aPoint = aPrjTool.NearestPoint();
1093 std::shared_ptr<GeomAPI_Dir> aDir(new GeomAPI_Dir(aCentreOfMassPoint.X()-aPoint.X(),
1094 aCentreOfMassPoint.Y()-aPoint.Y(),
1095 aCentreOfMassPoint.Z()-aPoint.Z()));
1100 //==================================================================================================
1101 static TopoDS_Wire fixParametricGaps(const TopoDS_Wire& theWire)
1103 TopoDS_Wire aFixedWire;
1104 Handle(Geom_Curve) aPrevCurve;
1105 double aPrevLastParam = -Precision::Infinite();
1107 BRep_Builder aBuilder;
1108 aBuilder.MakeWire(aFixedWire);
1110 BRepTools_WireExplorer aWExp(theWire);
1111 for (; aWExp.More(); aWExp.Next()) {
1112 TopoDS_Edge anEdge = aWExp.Current();
1113 double aFirst, aLast;
1114 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
1115 if (aCurve == aPrevCurve && Abs(aFirst - aPrevLastParam) > Precision::Confusion()) {
1116 // if parametric gap occurs, create new edge based on the copied curve
1117 aCurve = Handle(Geom_Curve)::DownCast(aCurve->Copy());
1118 TopoDS_Vertex aV1, aV2;
1119 TopExp::Vertices(anEdge, aV1, aV2);
1120 anEdge = TopoDS::Edge(anEdge.EmptyCopied());
1121 aBuilder.UpdateEdge(anEdge, aCurve, BRep_Tool::Tolerance(anEdge));
1122 aBuilder.Add(anEdge, aV1);
1123 aBuilder.Add(anEdge, aV2);
1126 aBuilder.Add(aFixedWire, anEdge);
1128 aPrevCurve = aCurve;
1129 aPrevLastParam = aLast;
1135 //==================================================================================================
1136 std::shared_ptr<GeomAPI_Edge> GeomAlgoAPI_ShapeTools::wireToEdge(
1137 const std::shared_ptr<GeomAPI_Wire>& theWire)
1141 TopoDS_Wire aWire = theWire->impl<TopoDS_Wire>();
1142 BRepTools_WireExplorer aWExp(aWire);
1143 TopoDS_Edge aNewEdge = aWExp.Current();
1146 // Workaround: when concatenate a wire consisting of two edges based on the same B-spline
1147 // curve (non-periodic, but having equal start and end points), first of which is placed
1148 // at the end on the curve and second is placed at the start, this workaround copies
1149 // second curve to avoid treating these edges as a single curve by setting trim parameters.
1150 aWire = fixParametricGaps(aWire);
1151 aWire = BRepAlgo::ConcatenateWire(aWire, GeomAbs_G1); // join smooth parts of wire
1152 aNewEdge = BRepAlgo::ConcatenateWireC0(aWire); // join C0 parts of wire
1154 anEdge = GeomEdgePtr(new GeomAPI_Edge);
1155 anEdge->setImpl(new TopoDS_Edge(aNewEdge));
1160 //==================================================================================================
1161 ListOfShape GeomAlgoAPI_ShapeTools::getLowLevelSubShapes(const GeomShapePtr& theShape)
1163 ListOfShape aSubShapes;
1165 if (!theShape->isCompound() && !theShape->isCompSolid() &&
1166 !theShape->isShell() && !theShape->isWire()) {
1170 for (GeomAPI_ShapeIterator anIt(theShape); anIt.more(); anIt.next()) {
1171 GeomShapePtr aSubShape = anIt.current();
1172 if (aSubShape->isVertex() || aSubShape->isEdge() ||
1173 aSubShape->isFace() || aSubShape->isSolid()) {
1174 aSubShapes.push_back(aSubShape);
1176 aSubShapes.splice(aSubShapes.end(), getLowLevelSubShapes(aSubShape));
1183 //==================================================================================================
1184 static void getMinMaxPointsOnLine(const std::list<std::shared_ptr<GeomAPI_Pnt> >& thePoints,
1185 const gp_Dir theDir,
1186 double& theMin, double& theMax)
1188 theMin = RealLast();
1189 theMax = RealFirst();
1190 // Project bounding points on theDir
1191 for (std::list<std::shared_ptr<GeomAPI_Pnt> >::const_iterator
1192 aPointsIt = thePoints.begin(); aPointsIt != thePoints.end(); aPointsIt++) {
1193 const gp_Pnt& aPnt = (*aPointsIt)->impl<gp_Pnt>();
1194 gp_Dir aPntDir (aPnt.XYZ());
1195 Standard_Real proj = (theDir*aPntDir) * aPnt.XYZ().Modulus();
1196 if (proj < theMin) theMin = proj;
1197 if (proj > theMax) theMax = proj;
1201 //==================================================================================================
1202 void GeomAlgoAPI_ShapeTools::computeThroughAll(const ListOfShape& theObjects,
1203 const ListOfShape& theBaseShapes,
1204 const std::shared_ptr<GeomAPI_Dir> theDir,
1205 double& theToSize, double& theFromSize)
1207 // Bounding box of objects
1208 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndObjs =
1209 GeomAlgoAPI_ShapeTools::getBoundingBox(theObjects);
1210 if (aBndObjs.size() != 8) {
1214 // the value to enlarge the bounding box of each object to make the extruded shape
1215 // a little bit larger than overall objects to get the correct result of Boolean CUT operation
1216 double anEnlargement = 0.1 * aBndObjs.front()->distance(aBndObjs.back());
1220 // One direction for all prisms
1221 gp_Dir aDir = theDir->impl<gp_Dir>();
1223 // Bounding box of the base
1224 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndBases =
1225 GeomAlgoAPI_ShapeTools::getBoundingBox(theBaseShapes);
1226 if (aBndBases.size() != 8) {
1231 Standard_Real lowBnd, upperBnd;
1232 getMinMaxPointsOnLine(aBndObjs, aDir, lowBnd, upperBnd);
1235 Standard_Real lowBase, upperBase;
1236 getMinMaxPointsOnLine(aBndBases, aDir, lowBase, upperBase);
1238 // ----------.-----.---------.--------------.-----------> theDir
1239 // lowBnd lowBase upperBase upperBnd
1241 theToSize = upperBnd - lowBase;
1242 theFromSize = upperBase - lowBnd;
1244 // Direction is a normal to each base shape (different normals to bases)
1245 // So we calculate own sizes for each base shape
1249 for (ListOfShape::const_iterator anIt = theBaseShapes.begin();
1250 anIt != theBaseShapes.end(); ++anIt) {
1251 const GeomShapePtr& aBaseShape_i = (*anIt);
1252 ListOfShape aBaseShapes_i;
1253 aBaseShapes_i.push_back(aBaseShape_i);
1255 // Bounding box of the base
1256 std::list<std::shared_ptr<GeomAPI_Pnt> > aBndBases =
1257 GeomAlgoAPI_ShapeTools::getBoundingBox(aBaseShapes_i, anEnlargement);
1258 if (aBndBases.size() != 8) {
1262 // Direction (normal to aBaseShapes_i)
1263 // Code like in GeomAlgoAPI_Prism
1265 const TopoDS_Shape& aBaseShape = aBaseShape_i->impl<TopoDS_Shape>();
1266 BRepBuilderAPI_FindPlane aFindPlane(aBaseShape);
1267 if (aFindPlane.Found() == Standard_True) {
1268 Handle(Geom_Plane) aPlane;
1269 if (aBaseShape.ShapeType() == TopAbs_FACE || aBaseShape.ShapeType() == TopAbs_SHELL) {
1270 TopExp_Explorer anExp(aBaseShape, TopAbs_FACE);
1271 const TopoDS_Shape& aFace = anExp.Current();
1272 Handle(Geom_Surface) aSurface = BRep_Tool::Surface(TopoDS::Face(aFace));
1273 if(aSurface->DynamicType() == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) {
1274 Handle(Geom_RectangularTrimmedSurface) aTrimSurface =
1275 Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface);
1276 aSurface = aTrimSurface->BasisSurface();
1278 if(aSurface->DynamicType() != STANDARD_TYPE(Geom_Plane)) {
1281 aPlane = Handle(Geom_Plane)::DownCast(aSurface);
1283 aPlane = aFindPlane.Plane();
1285 aDir = aPlane->Axis().Direction();
1291 Standard_Real lowBnd, upperBnd;
1292 getMinMaxPointsOnLine(aBndObjs, aDir, lowBnd, upperBnd);
1295 Standard_Real lowBase, upperBase;
1296 getMinMaxPointsOnLine(aBndBases, aDir, lowBase, upperBase);
1298 // ----------.-----.---------.--------------.-----------> theDir
1299 // lowBnd lowBase upperBase upperBnd
1301 double aToSize_i = upperBnd - lowBase;
1302 double aFromSize_i = upperBase - lowBnd;
1304 if (aToSize_i > theToSize) theToSize = aToSize_i;
1305 if (aFromSize_i > theFromSize) theFromSize = aFromSize_i;