+
+//==================================================================================================
+std::shared_ptr<GeomAPI_Pnt>
+ GeomAlgoAPI_PointBuilder::point(const std::shared_ptr<GeomAPI_Shape> theVertex)
+{
+ TopoDS_Shape aShape = theVertex->impl<TopoDS_Shape>();
+ if ((!aShape.IsNull()) && (aShape.ShapeType() == TopAbs_VERTEX)) {
+ TopoDS_Vertex aVertex = TopoDS::Vertex(aShape);
+ gp_Pnt aPoint = BRep_Tool::Pnt(aVertex);
+ std::shared_ptr<GeomAPI_Pnt> aPnt(new GeomAPI_Pnt(aPoint.X(), aPoint.Y(), aPoint.Z()));
+ return aPnt;
+ }
+ return std::shared_ptr<GeomAPI_Pnt>();
+}
+
+//==================================================================================================
+std::shared_ptr<GeomAPI_Vertex> GeomAlgoAPI_PointBuilder::vertexOnEdge(
+ const std::shared_ptr<GeomAPI_Edge> theEdge,
+ const double theValue,
+ const bool theIsPercent,
+ const bool theIsReverse)
+{
+ std::shared_ptr<GeomAPI_Vertex> aVertex;
+
+ if(!theEdge.get()) {
+ return aVertex;
+ }
+
+ double aValue = theValue;
+ if(theIsPercent) {
+ aValue = theEdge->length() / 100.0 * aValue;
+ }
+
+ const TopoDS_Edge& anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
+ Standard_Real aUFirst, aULast;
+ Handle(Geom_Curve) anEdgeCurve = BRep_Tool::Curve(anEdge, aUFirst, aULast);
+
+ if(!anEdgeCurve.IsNull() ) {
+ Handle(Geom_Curve) aReOrientedCurve = anEdgeCurve;
+
+ if(theIsReverse) {
+ aReOrientedCurve = anEdgeCurve->Reversed();
+ aUFirst = anEdgeCurve->ReversedParameter(aULast);
+ }
+
+ // Get the point by length
+ GeomAdaptor_Curve anAdapCurve = GeomAdaptor_Curve(aReOrientedCurve);
+ GCPnts_AbscissaPoint anAbsPnt(anAdapCurve, aValue, aUFirst);
+ Standard_Real aParam = anAbsPnt.Parameter();
+ gp_Pnt aPnt = anAdapCurve.Value(aParam);
+ BRepBuilderAPI_MakeVertex aMkVertex(aPnt);
+ const TopoDS_Vertex& aShape = aMkVertex.Vertex();
+ aVertex.reset(new GeomAPI_Vertex());
+ aVertex->setImpl(new TopoDS_Vertex(aShape));
+ }
+
+ return aVertex;
+}
+
+//==================================================================================================
+std::shared_ptr<GeomAPI_Vertex> GeomAlgoAPI_PointBuilder::vertexByProjection(
+ const std::shared_ptr<GeomAPI_Vertex> theVertex,
+ const std::shared_ptr<GeomAPI_Edge> theEdge)
+{
+ std::shared_ptr<GeomAPI_Vertex> aVertex;
+
+ if (!theVertex.get() || !theEdge.get()) {
+ return aVertex;
+ }
+
+ std::shared_ptr<GeomAPI_Pnt> aProjPnt = theVertex->point();
+ gp_Pnt aPnt(aProjPnt->x(), aProjPnt->y(), aProjPnt->z());
+
+ TopoDS_Edge anEdge = TopoDS::Edge(theEdge->impl<TopoDS_Shape>());
+ double aFirstOnCurve, aLastOnCurve;
+ Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirstOnCurve, aLastOnCurve);
+
+ if (aCurve.IsNull()) {
+ return aVertex;
+ }
+
+ GeomAPI_ProjectPointOnCurve aProjection(aPnt, aCurve);
+
+ if (aProjection.NbPoints() != 0) {
+ gp_Pnt aNearestPoint = aProjection.NearestPoint();
+ aVertex.reset(new GeomAPI_Vertex(aNearestPoint.X(), aNearestPoint.Y(), aNearestPoint.Z()));
+ }
+
+ return aVertex;
+}
+
+//==================================================================================================
+std::shared_ptr<GeomAPI_Vertex> GeomAlgoAPI_PointBuilder::vertexByProjection(
+ const std::shared_ptr<GeomAPI_Vertex> theVertex,
+ const std::shared_ptr<GeomAPI_Face> theFace)
+{
+ std::shared_ptr<GeomAPI_Vertex> aVertex;
+
+ if (theVertex.get() && theFace.get() && theFace->isPlanar()) {
+ std::shared_ptr<GeomAPI_Pnt> aProjPnt = theVertex->point();
+ std::shared_ptr<GeomAPI_Pln> aProjPln = theFace->getPlane();
+
+ std::shared_ptr<GeomAPI_Pnt> aPnt = aProjPln->project(aProjPnt);
+
+ if (aPnt.get())
+ aVertex.reset(new GeomAPI_Vertex(aPnt->x(), aPnt->y(), aPnt->z()));
+ }
+
+ return aVertex;
+}
+
+//==================================================================================================
+std::shared_ptr<GeomAPI_Vertex> GeomAlgoAPI_PointBuilder::vertexByIntersection(
+ const std::shared_ptr<GeomAPI_Edge> theEdge1,
+ const std::shared_ptr<GeomAPI_Edge> theEdge2)
+{
+ std::shared_ptr<GeomAPI_Vertex> aVertex;
+
+ if (theEdge1.get() && theEdge2.get() && theEdge1->isLine() && theEdge2->isLine()) {
+ std::shared_ptr<GeomAPI_Lin> aLin1 = theEdge1->line();
+ std::shared_ptr<GeomAPI_Lin> aLin2 = theEdge2->line();
+
+ std::shared_ptr<GeomAPI_Pnt> aPnt = aLin1->intersect(aLin2);
+
+ if (aPnt.get())
+ aVertex.reset(new GeomAPI_Vertex(aPnt->x(), aPnt->y(), aPnt->z()));
+ }
+
+ return aVertex;
+}