1 // Copyright (C) 2014-2019 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #include<GeomAPI_Edge.h>
21 #include<GeomAPI_Pln.h>
22 #include<GeomAPI_Pnt.h>
23 #include<GeomAPI_Circ.h>
24 #include<GeomAPI_Dir.h>
25 #include<GeomAPI_Lin.h>
26 #include<GeomAPI_Ax2.h>
27 #include<GeomAPI_Ellipse.h>
29 #include <BRepAdaptor_Curve.hxx>
31 #include <TopoDS_Shape.hxx>
32 #include <TopoDS_Edge.hxx>
34 #include <BRep_Builder.hxx>
35 #include <BRep_Tool.hxx>
37 #include <GCPnts_UniformAbscissa.hxx>
38 #include <Geom_Curve.hxx>
39 #include <Geom_Line.hxx>
40 #include <Geom_Circle.hxx>
41 #include <Geom_TrimmedCurve.hxx>
42 #include <Geom_Ellipse.hxx>
43 #include <Geom_Plane.hxx>
44 #include <GeomAPI_ExtremaCurveCurve.hxx>
45 #include <GeomAPI_ExtremaCurveSurface.hxx>
46 #include <GeomAPI_IntCS.hxx>
47 #include <GeomAdaptor_Curve.hxx>
50 #include <gp_Elips.hxx>
53 #include <GCPnts_AbscissaPoint.hxx>
55 GeomAPI_Edge::GeomAPI_Edge()
57 TopoDS_Edge* anEdge = new TopoDS_Edge;
59 BRep_Builder aBuilder;
60 aBuilder.MakeEdge(*anEdge);
65 GeomAPI_Edge::GeomAPI_Edge(const std::shared_ptr<GeomAPI_Shape>& theShape)
67 if (!theShape->isNull() && theShape->isEdge()) {
68 setImpl(new TopoDS_Shape(theShape->impl<TopoDS_Shape>()));
72 static Handle(Geom_Curve) baseCurve(const TopoDS_Edge& theEdge)
75 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(theEdge, aFirst, aLast);
76 while (aCurve->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
77 Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(aCurve);
78 aCurve = tc->BasisCurve();
83 bool GeomAPI_Edge::isSameGeometry(const std::shared_ptr<GeomAPI_Shape> theShape) const
85 if (!theShape->isEdge())
90 TopoDS_Edge anOwnEdge = TopoDS::Edge(impl<TopoDS_Shape>());
91 TopoDS_Edge anOtherEdge = TopoDS::Edge(theShape->impl<TopoDS_Shape>());
93 Handle(Geom_Curve) anOwnCurve = baseCurve(anOwnEdge);
94 Handle(Geom_Curve) anOtherCurve = baseCurve(anOtherEdge);
95 GeomAPI_ExtremaCurveCurve anExtrema(anOwnCurve, anOtherCurve);
97 bool isSame = anExtrema.Extrema().IsParallel() &&
98 anExtrema.TotalLowerDistance() < Precision::Confusion();
102 bool GeomAPI_Edge::isLine() const
104 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
105 double aFirst, aLast;
106 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
107 if (aCurve.IsNull()) // degenerative edge
109 if (aCurve->IsKind(STANDARD_TYPE(Geom_Line)))
114 /// extracts a circle curve from the arbitrary curve, returns null is it is different type
115 static Handle(Geom_Circle) circ(const Handle(Geom_Curve) theCurve)
117 Handle(Geom_Circle) aResult = Handle(Geom_Circle)::DownCast(theCurve);
118 if (!aResult.IsNull())
120 // check this may be a trimmed curve that contains circle inside
121 Handle(Geom_TrimmedCurve) aTrimmed = Handle(Geom_TrimmedCurve)::DownCast(theCurve);
122 while(!aTrimmed.IsNull()) {
123 aResult = Handle(Geom_Circle)::DownCast(aTrimmed->BasisCurve());
124 if (!aResult.IsNull())
126 aTrimmed = Handle(Geom_TrimmedCurve)::DownCast(aTrimmed->BasisCurve());
128 return aResult; // null, not circle
131 bool GeomAPI_Edge::isCircle() const
133 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
134 double aFirst, aLast;
135 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
136 if (!circ(aCurve).IsNull()) {
137 // Check the difference of first and last parameters to be equal to the curve period
138 if (Abs(aLast - aFirst - aCurve->Period()) < Precision::PConfusion())
144 bool GeomAPI_Edge::isArc() const
146 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
147 double aFirst, aLast;
148 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
149 if (!circ(aCurve).IsNull()) {
150 // Check the difference of first and last parameters is not equal the curve period
151 if (Abs(aLast - aFirst - aCurve->Period()) >= Precision::PConfusion())
157 bool GeomAPI_Edge::isEllipse() const
159 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
160 double aFirst, aLast;
161 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
162 if (aCurve.IsNull()) // degenerative edge
164 if (aCurve->IsKind(STANDARD_TYPE(Geom_Ellipse)))
169 std::shared_ptr<GeomAPI_Pnt> GeomAPI_Edge::firstPoint()
171 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
172 double aFirst, aLast;
173 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
175 aCurve->D0(aFirst, aPoint);
176 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aPoint.X(), aPoint.Y(), aPoint.Z()));
179 std::shared_ptr<GeomAPI_Pnt> GeomAPI_Edge::lastPoint()
181 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
182 double aFirst, aLast;
183 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
185 aCurve->D0(aLast, aPoint);
186 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aPoint.X(), aPoint.Y(), aPoint.Z()));
189 std::shared_ptr<GeomAPI_Circ> GeomAPI_Edge::circle() const
191 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
192 double aFirst, aLast;
193 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
194 Handle(Geom_Circle) aCirc = circ(aCurve);
195 if (!aCirc.IsNull()) {
196 gp_Pnt aLoc = aCirc->Location();
197 std::shared_ptr<GeomAPI_Pnt> aCenter(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
198 gp_Dir anAxis = aCirc->Axis().Direction();
199 std::shared_ptr<GeomAPI_Dir> aDir(new GeomAPI_Dir(anAxis.X(), anAxis.Y(), anAxis.Z()));
200 return std::shared_ptr<GeomAPI_Circ>(new GeomAPI_Circ(aCenter, aDir, aCirc->Radius()));
202 return std::shared_ptr<GeomAPI_Circ>(); // not circle
205 std::shared_ptr<GeomAPI_Ellipse> GeomAPI_Edge::ellipse() const
207 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
208 double aFirst, aLast;
209 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
210 if (!aCurve.IsNull()) {
211 Handle(Geom_Ellipse) aElips = Handle(Geom_Ellipse)::DownCast(aCurve);
212 if (!aElips.IsNull()) {
213 gp_Elips aGpElips = aElips->Elips();
214 std::shared_ptr<GeomAPI_Ellipse> aEllipse(new GeomAPI_Ellipse());
215 aEllipse->setImpl(new gp_Elips(aGpElips));
219 return std::shared_ptr<GeomAPI_Ellipse>(); // not ellipse
222 std::shared_ptr<GeomAPI_Lin> GeomAPI_Edge::line() const
224 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
225 double aFirst, aLast;
226 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
228 Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast(aCurve);
230 gp_Pnt aStartPnt = aLine->Value(aFirst);
231 std::shared_ptr<GeomAPI_Pnt> aStart(
232 new GeomAPI_Pnt(aStartPnt.X(), aStartPnt.Y(), aStartPnt.Z()));
233 gp_Pnt aEndPnt = aLine->Value(aLast);
234 std::shared_ptr<GeomAPI_Pnt> aEnd(
235 new GeomAPI_Pnt(aEndPnt.X(), aEndPnt.Y(), aEndPnt.Z()));
236 return std::shared_ptr<GeomAPI_Lin>(new GeomAPI_Lin(aStart, aEnd));
239 return std::shared_ptr<GeomAPI_Lin>(); // not circle
243 bool GeomAPI_Edge::isEqual(const std::shared_ptr<GeomAPI_Shape> theEdge) const
245 if (!theEdge.get() || ! theEdge->isEdge())
247 const TopoDS_Shape& aMyShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
248 const TopoDS_Shape& aInShape = theEdge->impl<TopoDS_Shape>();
250 if (aMyShape.IsNull() || aInShape.IsNull())
253 if (aMyShape.ShapeType() != aInShape.ShapeType())
256 double aMyStart, aMyEnd;
257 Handle(Geom_Curve) aMyCurve = BRep_Tool::Curve(TopoDS::Edge(aMyShape), aMyStart, aMyEnd);
258 double aInStart, aInEnd;
259 Handle(Geom_Curve) aInCurve = BRep_Tool::Curve(TopoDS::Edge(aInShape), aInStart, aInEnd);
261 // Check that end point parameters are the same
262 if ((aMyStart != aInStart) || (aMyEnd != aInEnd))
265 // Check that curves a the same type
266 GeomAdaptor_Curve aMyAdaptor(aMyCurve);
267 GeomAdaptor_Curve aInAdaptor(aInCurve);
268 if (aMyAdaptor.GetType() != aInAdaptor.GetType())
271 // Check that end points are equal
272 gp_Pnt aMyPnt1 = aMyAdaptor.Value(aMyStart);
273 gp_Pnt aMyPnt2 = aMyAdaptor.Value(aMyEnd);
274 gp_Pnt aInPnt1 = aInAdaptor.Value(aInStart);
275 gp_Pnt aInPnt2 = aInAdaptor.Value(aInEnd);
277 if ((!aMyPnt1.IsEqual(aInPnt1, Precision::Confusion())) ||
278 (!aMyPnt2.IsEqual(aInPnt2, Precision::Confusion())))
285 void GeomAPI_Edge::getRange(double& theFirst, double& theLast) const
287 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
288 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, theFirst, theLast);
291 bool GeomAPI_Edge::isInPlane(std::shared_ptr<GeomAPI_Pln> thePlane) const
293 double aFirst, aLast;
294 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
295 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
300 thePlane->coefficients(A, B, C, D);
301 gp_Pln aPlane(A, B, C, D);
303 bool inPlane = false;
304 if (aCurve->IsKind(STANDARD_TYPE(Geom_Line))) {
305 // check start and end points on the plane
306 gp_Pnt aFirstPnt = aCurve->Value(aFirst);
307 gp_Pnt aLastPnt = aCurve->Value(aLast);
308 inPlane = aPlane.SquareDistance(aFirstPnt) < Precision::SquareConfusion() &&
309 aPlane.SquareDistance(aLastPnt) < Precision::SquareConfusion();
311 Handle(Geom_Circle) aCirc = circ(aCurve);
312 if (!aCirc.IsNull()) {
313 gp_Pnt aCenter = aCirc->Location();
314 Standard_Real aDot = aPlane.Axis().Direction().Dot(aCirc->Axis().Direction());
315 inPlane = aPlane.SquareDistance(aCenter) < Precision::SquareConfusion() &&
316 Abs(Abs(aDot) - 1.0) < Precision::Confusion();
318 // three points checking
319 gp_Pnt aFirstPnt = aCurve->Value(aFirst);
320 gp_Pnt aMidPnt = aCurve->Value((aFirst + aLast) / 2.);
321 gp_Pnt aLastPnt = aCurve->Value(aLast);
322 inPlane = aPlane.SquareDistance(aFirstPnt) < Precision::SquareConfusion() &&
323 aPlane.SquareDistance(aMidPnt) < Precision::SquareConfusion() &&
324 aPlane.SquareDistance(aLastPnt) < Precision::SquareConfusion();
331 void GeomAPI_Edge::intersectWithPlane(const std::shared_ptr<GeomAPI_Pln> thePlane,
332 std::list<std::shared_ptr<GeomAPI_Pnt>>& theResult) const
334 double aFirst, aLast;
335 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
336 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
337 if (!aCurve.IsNull()) {
339 thePlane->coefficients(A, B, C, D);
340 gp_Pln aPln(A, B, C, D);
341 Handle(Geom_Plane) aPlane = new Geom_Plane(aPln);
343 // intersect the plane with the curve
344 GeomAPI_IntCS aIntersect;
345 aIntersect.Perform(aCurve, aPlane);
346 if (aIntersect.IsDone() && (aIntersect.NbPoints() > 0)) {
348 for (int i = 1; i <= aIntersect.NbPoints(); i++) {
349 // check the parameter of intersection in the edge range
350 aIntersect.Parameters(i, A, B, C);
351 if (aCurve->IsPeriodic())
352 C = ElCLib::InPeriod(C, aFirst, aFirst + aCurve->Period());
353 if (C < aFirst - Precision::PConfusion() || C > aLast + Precision::PConfusion())
356 // obtain intersection point
357 aPnt = aIntersect.Point(i);
358 std::shared_ptr<GeomAPI_Pnt> aPntPtr(new GeomAPI_Pnt(aPnt.X(), aPnt.Y(), aPnt.Z()));
359 theResult.push_back(aPntPtr);
363 // find minimal distance between the plane and the curve
364 GeomAPI_ExtremaCurveSurface anExtrema(aCurve, aPlane);
365 double aTolerance = BRep_Tool::Tolerance(TopoDS::Edge(aShape));
366 if (anExtrema.NbExtrema() > 0 &&
367 anExtrema.LowerDistance() < aTolerance) {
368 // distance is lower than tolerance => tangent case
370 anExtrema.NearestPoints(aPntC, aPntS);
371 std::shared_ptr<GeomAPI_Pnt> aPntPtr(new GeomAPI_Pnt(aPntS.X(), aPntS.Y(), aPntS.Z()));
372 theResult.push_back(aPntPtr);
378 double GeomAPI_Edge::length() const
380 const TopoDS_Edge& anEdge = TopoDS::Edge(impl<TopoDS_Shape>());
381 BRepAdaptor_Curve aBRepAdaptor = BRepAdaptor_Curve(anEdge);
382 Adaptor3d_Curve* anAdaptor3d = &aBRepAdaptor;
383 return GCPnts_AbscissaPoint::Length(*anAdaptor3d);
386 bool GeomAPI_Edge::isClosed() const
388 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
391 double aFirst, aLast;
392 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
393 if (aCurve.IsNull() || !aCurve->IsPeriodic())
395 aLast += aLast > aFirst ? -aCurve->Period() : aCurve->Period();;
397 return fabs(aFirst - aLast) < 1.e-9;
400 bool GeomAPI_Edge::isDegenerated() const
402 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
403 if (aShape.IsNull() || aShape.ShapeType() != TopAbs_EDGE)
405 return BRep_Tool::Degenerated(TopoDS::Edge(aShape));
408 void GeomAPI_Edge::setFirstPointTolerance(const double theTolerance)
410 TopoDS_Edge anEdge = impl<TopoDS_Edge>();
411 TopoDS_Vertex aVFirst, aVLast;
412 TopExp::Vertices(anEdge, aVFirst, aVLast);
413 BRep_Builder().UpdateVertex(aVFirst, theTolerance);
416 void GeomAPI_Edge::setLastPointTolerance(const double theTolerance)
418 TopoDS_Edge anEdge = impl<TopoDS_Edge>();
419 TopoDS_Vertex aVFirst, aVLast;
420 TopExp::Vertices(anEdge, aVFirst, aVLast);
421 BRep_Builder().UpdateVertex(aVLast, theTolerance);
424 GeomPointPtr GeomAPI_Edge::middlePoint() const
426 GeomPointPtr aMiddlePoint;
428 const TopoDS_Edge& anEdge = impl<TopoDS_Edge>();
431 double aFirst, aLast;
432 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
436 static const int NB_POINTS = 3;
437 GeomAdaptor_Curve aCurveAdaptor(aCurve, aFirst, aLast);
438 GCPnts_UniformAbscissa anAlgo(aCurveAdaptor, NB_POINTS);
439 if (anAlgo.IsDone()) {
440 gp_Pnt aPnt = aCurveAdaptor.Value(anAlgo.Parameter(2));
441 aMiddlePoint = GeomPointPtr(new GeomAPI_Pnt(aPnt.X(), aPnt.Y(), aPnt.Z()));