Handle(GEOM_Function) aTargetFunction = TI.GetPlane();
if (aTargetFunction.IsNull()) return 0;
TopoDS_Shape aFaceShape = aTargetFunction->GetValue();
- //if (aFaceShape.IsNull() || aFaceShape.ShapeType() != TopAbs_FACE) {
- // Standard_ConstructionError::Raise
- // ("Projection aborted : the target shape is not a face");
- //}
-
- Standard_Real tol = 1.e-4;
if (anOriginal.ShapeType() == TopAbs_VERTEX) {
- if (aFaceShape.IsNull() || aFaceShape.ShapeType() != TopAbs_FACE) {
- Standard_ConstructionError::Raise
- ("Projection aborted : the target shape is not a face");
- }
- TopoDS_Face aFace = TopoDS::Face(aFaceShape);
- Handle(Geom_Surface) surface = BRep_Tool::Surface(aFace);
- double U1, U2, V1, V2;
- //surface->Bounds(U1, U2, V1, V2);
- BRepTools::UVBounds(aFace, U1, U2, V1, V2);
-
- // projector
- GeomAPI_ProjectPointOnSurf proj;
- proj.Init(surface, U1, U2, V1, V2, tol);
-
- gp_Pnt aPnt = BRep_Tool::Pnt(TopoDS::Vertex(anOriginal));
- proj.Perform(aPnt);
- if (!proj.IsDone()) {
- Standard_ConstructionError::Raise
- ("Projection aborted : the algorithm failed");
- }
- int nbPoints = proj.NbPoints();
- if (nbPoints < 1) {
- Standard_ConstructionError::Raise("No solution found");
- }
-
Standard_Real U, V;
- proj.LowerDistanceParameters(U, V);
- gp_Pnt2d aProjPnt (U, V);
-
- // classifier
- BRepClass_FaceClassifier aClsf (aFace, aProjPnt, tol);
- if (aClsf.State() != TopAbs_IN && aClsf.State() != TopAbs_ON) {
- bool isSol = false;
- double minDist = RealLast();
- for (int i = 1; i <= nbPoints; i++) {
- Standard_Real Ui, Vi;
- proj.Parameters(i, Ui, Vi);
- aProjPnt = gp_Pnt2d(Ui, Vi);
- aClsf.Perform(aFace, aProjPnt, tol);
- if (aClsf.State() == TopAbs_IN || aClsf.State() == TopAbs_ON) {
- isSol = true;
- double dist = proj.Distance(i);
- if (dist < minDist) {
- minDist = dist;
- U = Ui;
- V = Vi;
- }
- }
- }
- if (!isSol) {
- Standard_ConstructionError::Raise("No solution found");
- }
- }
-
- gp_Pnt surfPnt = surface->Value(U, V);
-
+ gp_Pnt aPnt = BRep_Tool::Pnt(TopoDS::Vertex(anOriginal));
+ gp_Pnt surfPnt = GEOMUtils::ProjectPointOnFace(aPnt, aFaceShape, U, V);
aShape = BRepBuilderAPI_MakeVertex(surfPnt).Shape();
}
else {
