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_ExtremaCurveSurface.hxx>
45 #include <GeomAPI_IntCS.hxx>
46 #include <GeomAdaptor_Curve.hxx>
49 #include <gp_Elips.hxx>
52 #include <GCPnts_AbscissaPoint.hxx>
54 GeomAPI_Edge::GeomAPI_Edge()
56 TopoDS_Edge* anEdge = new TopoDS_Edge;
58 BRep_Builder aBuilder;
59 aBuilder.MakeEdge(*anEdge);
64 GeomAPI_Edge::GeomAPI_Edge(const std::shared_ptr<GeomAPI_Shape>& theShape)
66 if (!theShape->isNull() && theShape->isEdge()) {
67 setImpl(new TopoDS_Shape(theShape->impl<TopoDS_Shape>()));
71 bool GeomAPI_Edge::isSameGeometry(const std::shared_ptr<GeomAPI_Shape> theShape) const
73 if (!theShape->isEdge())
75 TopoDS_Edge anOwnEdge = TopoDS::Edge(impl<TopoDS_Shape>());
76 TopoDS_Edge anOtherEdge = TopoDS::Edge(theShape->impl<TopoDS_Shape>());
79 Handle(Geom_Curve) anOwnCurve = BRep_Tool::Curve(anOwnEdge, aFirst, aLast);
80 Handle(Geom_Curve) anOtherCurve = BRep_Tool::Curve(anOtherEdge, aFirst, aLast);
81 return anOwnCurve == anOtherCurve;
84 bool GeomAPI_Edge::isLine() const
86 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
88 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
89 if (aCurve.IsNull()) // degenerative edge
91 if (aCurve->IsKind(STANDARD_TYPE(Geom_Line)))
96 /// extracts a circle curve from the arbitrary curve, returns null is it is different type
97 static Handle(Geom_Circle) circ(const Handle(Geom_Curve) theCurve)
99 Handle(Geom_Circle) aResult = Handle(Geom_Circle)::DownCast(theCurve);
100 if (!aResult.IsNull())
102 // check this may be a trimmed curve that contains circle inside
103 Handle(Geom_TrimmedCurve) aTrimmed = Handle(Geom_TrimmedCurve)::DownCast(theCurve);
104 while(!aTrimmed.IsNull()) {
105 aResult = Handle(Geom_Circle)::DownCast(aTrimmed->BasisCurve());
106 if (!aResult.IsNull())
108 aTrimmed = Handle(Geom_TrimmedCurve)::DownCast(aTrimmed->BasisCurve());
110 return aResult; // null, not circle
113 bool GeomAPI_Edge::isCircle() const
115 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
116 double aFirst, aLast;
117 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
118 if (!circ(aCurve).IsNull()) {
119 // Check the difference of first and last parameters to be equal to the curve period
120 if (Abs(aLast - aFirst - aCurve->Period()) < Precision::PConfusion())
126 bool GeomAPI_Edge::isArc() const
128 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
129 double aFirst, aLast;
130 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
131 if (!circ(aCurve).IsNull()) {
132 // Check the difference of first and last parameters is not equal the curve period
133 if (Abs(aLast - aFirst - aCurve->Period()) >= Precision::PConfusion())
139 bool GeomAPI_Edge::isEllipse() const
141 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
142 double aFirst, aLast;
143 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
144 if (aCurve.IsNull()) // degenerative edge
146 if (aCurve->IsKind(STANDARD_TYPE(Geom_Ellipse)))
151 std::shared_ptr<GeomAPI_Pnt> GeomAPI_Edge::firstPoint()
153 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
154 double aFirst, aLast;
155 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
157 aCurve->D0(aFirst, aPoint);
158 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aPoint.X(), aPoint.Y(), aPoint.Z()));
161 std::shared_ptr<GeomAPI_Pnt> GeomAPI_Edge::lastPoint()
163 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
164 double aFirst, aLast;
165 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
167 aCurve->D0(aLast, aPoint);
168 return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aPoint.X(), aPoint.Y(), aPoint.Z()));
171 std::shared_ptr<GeomAPI_Circ> GeomAPI_Edge::circle() const
173 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
174 double aFirst, aLast;
175 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
176 Handle(Geom_Circle) aCirc = circ(aCurve);
177 if (!aCirc.IsNull()) {
178 gp_Pnt aLoc = aCirc->Location();
179 std::shared_ptr<GeomAPI_Pnt> aCenter(new GeomAPI_Pnt(aLoc.X(), aLoc.Y(), aLoc.Z()));
180 gp_Dir anAxis = aCirc->Axis().Direction();
181 std::shared_ptr<GeomAPI_Dir> aDir(new GeomAPI_Dir(anAxis.X(), anAxis.Y(), anAxis.Z()));
182 return std::shared_ptr<GeomAPI_Circ>(new GeomAPI_Circ(aCenter, aDir, aCirc->Radius()));
184 return std::shared_ptr<GeomAPI_Circ>(); // not circle
187 std::shared_ptr<GeomAPI_Ellipse> GeomAPI_Edge::ellipse() const
189 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
190 double aFirst, aLast;
191 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
192 if (!aCurve.IsNull()) {
193 Handle(Geom_Ellipse) aElips = Handle(Geom_Ellipse)::DownCast(aCurve);
194 if (!aElips.IsNull()) {
195 gp_Elips aGpElips = aElips->Elips();
196 std::shared_ptr<GeomAPI_Ellipse> aEllipse(new GeomAPI_Ellipse());
197 aEllipse->setImpl(new gp_Elips(aGpElips));
201 return std::shared_ptr<GeomAPI_Ellipse>(); // not ellipse
204 std::shared_ptr<GeomAPI_Lin> GeomAPI_Edge::line() const
206 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
207 double aFirst, aLast;
208 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
210 Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast(aCurve);
212 gp_Pnt aStartPnt = aLine->Value(aFirst);
213 std::shared_ptr<GeomAPI_Pnt> aStart(
214 new GeomAPI_Pnt(aStartPnt.X(), aStartPnt.Y(), aStartPnt.Z()));
215 gp_Pnt aEndPnt = aLine->Value(aLast);
216 std::shared_ptr<GeomAPI_Pnt> aEnd(
217 new GeomAPI_Pnt(aEndPnt.X(), aEndPnt.Y(), aEndPnt.Z()));
218 return std::shared_ptr<GeomAPI_Lin>(new GeomAPI_Lin(aStart, aEnd));
221 return std::shared_ptr<GeomAPI_Lin>(); // not circle
225 bool GeomAPI_Edge::isEqual(const std::shared_ptr<GeomAPI_Shape> theEdge) const
227 if (!theEdge.get() || ! theEdge->isEdge())
229 const TopoDS_Shape& aMyShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
230 const TopoDS_Shape& aInShape = theEdge->impl<TopoDS_Shape>();
232 if (aMyShape.IsNull() || aInShape.IsNull())
235 if (aMyShape.ShapeType() != aInShape.ShapeType())
238 double aMyStart, aMyEnd;
239 Handle(Geom_Curve) aMyCurve = BRep_Tool::Curve(TopoDS::Edge(aMyShape), aMyStart, aMyEnd);
240 double aInStart, aInEnd;
241 Handle(Geom_Curve) aInCurve = BRep_Tool::Curve(TopoDS::Edge(aInShape), aInStart, aInEnd);
243 // Check that end point parameters are the same
244 if ((aMyStart != aInStart) || (aMyEnd != aInEnd))
247 // Check that curves a the same type
248 GeomAdaptor_Curve aMyAdaptor(aMyCurve);
249 GeomAdaptor_Curve aInAdaptor(aInCurve);
250 if (aMyAdaptor.GetType() != aInAdaptor.GetType())
253 // Check that end points are equal
254 gp_Pnt aMyPnt1 = aMyAdaptor.Value(aMyStart);
255 gp_Pnt aMyPnt2 = aMyAdaptor.Value(aMyEnd);
256 gp_Pnt aInPnt1 = aInAdaptor.Value(aInStart);
257 gp_Pnt aInPnt2 = aInAdaptor.Value(aInEnd);
259 if ((!aMyPnt1.IsEqual(aInPnt1, Precision::Confusion())) ||
260 (!aMyPnt2.IsEqual(aInPnt2, Precision::Confusion())))
267 void GeomAPI_Edge::getRange(double& theFirst, double& theLast) const
269 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
270 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, theFirst, theLast);
273 bool GeomAPI_Edge::isInPlane(std::shared_ptr<GeomAPI_Pln> thePlane) const
275 double aFirst, aLast;
276 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
277 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
282 thePlane->coefficients(A, B, C, D);
283 gp_Pln aPlane(A, B, C, D);
285 bool inPlane = false;
286 if (aCurve->IsKind(STANDARD_TYPE(Geom_Line))) {
287 // check start and end points on the plane
288 gp_Pnt aFirstPnt = aCurve->Value(aFirst);
289 gp_Pnt aLastPnt = aCurve->Value(aLast);
290 inPlane = aPlane.SquareDistance(aFirstPnt) < Precision::SquareConfusion() &&
291 aPlane.SquareDistance(aLastPnt) < Precision::SquareConfusion();
293 Handle(Geom_Circle) aCirc = circ(aCurve);
294 if (!aCirc.IsNull()) {
295 gp_Pnt aCenter = aCirc->Location();
296 Standard_Real aDot = aPlane.Axis().Direction().Dot(aCirc->Axis().Direction());
297 inPlane = aPlane.SquareDistance(aCenter) < Precision::SquareConfusion() &&
298 Abs(Abs(aDot) - 1.0) < Precision::Confusion();
300 // three points checking
301 gp_Pnt aFirstPnt = aCurve->Value(aFirst);
302 gp_Pnt aMidPnt = aCurve->Value((aFirst + aLast) / 2.);
303 gp_Pnt aLastPnt = aCurve->Value(aLast);
304 inPlane = aPlane.SquareDistance(aFirstPnt) < Precision::SquareConfusion() &&
305 aPlane.SquareDistance(aMidPnt) < Precision::SquareConfusion() &&
306 aPlane.SquareDistance(aLastPnt) < Precision::SquareConfusion();
313 void GeomAPI_Edge::intersectWithPlane(const std::shared_ptr<GeomAPI_Pln> thePlane,
314 std::list<std::shared_ptr<GeomAPI_Pnt>>& theResult) const
316 double aFirst, aLast;
317 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
318 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
319 if (!aCurve.IsNull()) {
321 thePlane->coefficients(A, B, C, D);
322 gp_Pln aPln(A, B, C, D);
323 Handle(Geom_Plane) aPlane = new Geom_Plane(aPln);
325 // intersect the plane with the curve
326 GeomAPI_IntCS aIntersect;
327 aIntersect.Perform(aCurve, aPlane);
328 if (aIntersect.IsDone() && (aIntersect.NbPoints() > 0)) {
330 for (int i = 1; i <= aIntersect.NbPoints(); i++) {
331 // check the parameter of intersection in the edge range
332 aIntersect.Parameters(i, A, B, C);
333 if (aCurve->IsPeriodic())
334 C = ElCLib::InPeriod(C, aFirst, aFirst + aCurve->Period());
335 if (C < aFirst - Precision::PConfusion() || C > aLast + Precision::PConfusion())
338 // obtain intersection point
339 aPnt = aIntersect.Point(i);
340 std::shared_ptr<GeomAPI_Pnt> aPntPtr(new GeomAPI_Pnt(aPnt.X(), aPnt.Y(), aPnt.Z()));
341 theResult.push_back(aPntPtr);
345 // find minimal distance between the plane and the curve
346 GeomAPI_ExtremaCurveSurface anExtrema(aCurve, aPlane);
347 double aTolerance = BRep_Tool::Tolerance(TopoDS::Edge(aShape));
348 if (anExtrema.NbExtrema() > 0 &&
349 anExtrema.LowerDistance() < aTolerance) {
350 // distance is lower than tolerance => tangent case
352 anExtrema.NearestPoints(aPntC, aPntS);
353 std::shared_ptr<GeomAPI_Pnt> aPntPtr(new GeomAPI_Pnt(aPntS.X(), aPntS.Y(), aPntS.Z()));
354 theResult.push_back(aPntPtr);
360 double GeomAPI_Edge::length() const
362 const TopoDS_Edge& anEdge = TopoDS::Edge(impl<TopoDS_Shape>());
363 BRepAdaptor_Curve aBRepAdaptor = BRepAdaptor_Curve(anEdge);
364 Adaptor3d_Curve* anAdaptor3d = &aBRepAdaptor;
365 return GCPnts_AbscissaPoint::Length(*anAdaptor3d);
368 bool GeomAPI_Edge::isClosed() const
370 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
373 double aFirst, aLast;
374 Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
375 if (aCurve.IsNull() || !aCurve->IsPeriodic())
377 aLast += aLast > aFirst ? -aCurve->Period() : aCurve->Period();;
379 return fabs(aFirst - aLast) < 1.e-9;
382 bool GeomAPI_Edge::isDegenerated() const
384 const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
385 if (aShape.IsNull() || aShape.ShapeType() != TopAbs_EDGE)
387 return BRep_Tool::Degenerated(TopoDS::Edge(aShape));
390 void GeomAPI_Edge::setFirstPointTolerance(const double theTolerance)
392 TopoDS_Edge anEdge = impl<TopoDS_Edge>();
393 TopoDS_Vertex aVFirst, aVLast;
394 TopExp::Vertices(anEdge, aVFirst, aVLast);
395 BRep_Builder().UpdateVertex(aVFirst, theTolerance);
398 void GeomAPI_Edge::setLastPointTolerance(const double theTolerance)
400 TopoDS_Edge anEdge = impl<TopoDS_Edge>();
401 TopoDS_Vertex aVFirst, aVLast;
402 TopExp::Vertices(anEdge, aVFirst, aVLast);
403 BRep_Builder().UpdateVertex(aVLast, theTolerance);
406 GeomPointPtr GeomAPI_Edge::middlePoint() const
408 GeomPointPtr aMiddlePoint;
410 const TopoDS_Edge& anEdge = impl<TopoDS_Edge>();
413 double aFirst, aLast;
414 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
418 static const int NB_POINTS = 3;
419 GeomAdaptor_Curve aCurveAdaptor(aCurve, aFirst, aLast);
420 GCPnts_UniformAbscissa anAlgo(aCurveAdaptor, NB_POINTS);
421 if (anAlgo.IsDone()) {
422 gp_Pnt aPnt = aCurveAdaptor.Value(anAlgo.Parameter(2));
423 aMiddlePoint = GeomPointPtr(new GeomAPI_Pnt(aPnt.X(), aPnt.Y(), aPnt.Z()));