return aCV;
}
+//=============================================================================
+/*!
+ * XYZtoUV
+ */
+ //=============================================================================
+Handle(TColStd_HArray1OfReal) GEOMImpl_IMeasureOperations::XYZtoUV
+ (Handle(GEOM_Object) theSurf,
+ const Handle(TColStd_HArray1OfReal)& theXYZlist,
+ bool isNormalized)
+{
+ SetErrorCode(KO);
+
+ Handle(TColStd_HArray1OfReal) aRet;
+
+ // Check list of coordinates
+ int nbC = theXYZlist->Length();
+ int nbP = nbC / 3;
+ if (nbP * 3 != nbC) {
+ SetErrorCode("Coordinates list length is not divisible by 3");
+ return aRet;
+ }
+
+ // Check face
+ if (theSurf.IsNull()) {
+ SetErrorCode("The shape is NULL");
+ return aRet;
+ }
+
+ Handle(GEOM_Function) aRefShape = theSurf->GetLastFunction();
+ if (aRefShape.IsNull()) {
+ SetErrorCode("The shape is NULL");
+ return aRet;
+ }
+
+ TopoDS_Shape aShape = aRefShape->GetValue();
+ if (aShape.IsNull()) {
+ SetErrorCode("The shape is NULL");
+ return aRet;
+ }
+
+ // The shape can be a face, a shell of one face or a compound with one face
+ TopoDS_Face F;
+ if (aShape.ShapeType() == TopAbs_FACE) {
+ F = TopoDS::Face(aShape);
+ }
+ else if (aShape.ShapeType() < TopAbs_FACE) {
+ TopExp_Explorer Exp (aShape, TopAbs_FACE);
+ if (Exp.More()) {
+ F = TopoDS::Face(Exp.Current());
+ Exp.Next();
+ if (Exp.More()) {
+ SetErrorCode("There should be only one face");
+ return aRet;
+ }
+ }
+ }
+ if (F.IsNull()) {
+ SetErrorCode("There are no faces");
+ return aRet;
+ }
+
+ // Face tolerance
+ Standard_Real squareTolerance = BRep_Tool::Tolerance(F);
+ squareTolerance = squareTolerance * squareTolerance;
+
+ // Compute parameters
+ Handle(Geom_Surface) aSurf = BRep_Tool::Surface(F);
+ aRet = new TColStd_HArray1OfReal (0, nbP * 2 - 1);
+
+ Standard_Real U1,U2, V1,V2;
+ BRepTools::UVBounds(F, U1, U2, V1, V2);
+ Standard_Real dU = U2 - U1;
+ Standard_Real dV = V2 - V1;
+
+ int iCLower = theXYZlist->Lower();
+ for (int iP = 0; iP < nbP; iP++) {
+ gp_Pnt aP (theXYZlist->Value(iCLower + iP * 3),
+ theXYZlist->Value(iCLower + iP * 3 + 1),
+ theXYZlist->Value(iCLower + iP * 3 + 2));
+ Standard_Real U, V;
+ gp_Pnt aPonF = GEOMUtils::ProjectPointOnFace(aP, F, U, V);
+ if (aP.SquareDistance(aPonF) < squareTolerance) {
+ if (isNormalized) {
+ // Normalize parameters to be in [0, 1]
+ U = (U - U1) / dU;
+ V = (V - V1) / dV;
+ }
+ aRet->SetValue(iP * 2 , U);
+ aRet->SetValue(iP * 2 + 1, V);
+ }
+ else {
+ SetErrorCode("Point too far from face");
+ return aRet;
+ }
+ }
+
+ SetErrorCode(OK);
+ return aRet;
+}
+
+//=============================================================================
+/*!
+ * UVtoXYZ
+ */
+ //=============================================================================
+Handle(TColStd_HArray1OfReal) GEOMImpl_IMeasureOperations::UVtoXYZ
+ (Handle(GEOM_Object) theSurf,
+ const Handle(TColStd_HArray1OfReal)& theUVlist,
+ bool isNormalized)
+{
+ SetErrorCode(KO);
+
+ Handle(TColStd_HArray1OfReal) aRet;
+
+ // Check list of parameters
+ int nbC = theUVlist->Length();
+ int nbP = nbC / 2;
+ if (nbP * 2 != nbC) {
+ SetErrorCode("Parameters list length is not divisible by 2");
+ return aRet;
+ }
+
+ // Check face
+ if (theSurf.IsNull()) {
+ SetErrorCode("The shape is NULL");
+ return aRet;
+ }
+
+ Handle(GEOM_Function) aRefShape = theSurf->GetLastFunction();
+ if (aRefShape.IsNull()) {
+ SetErrorCode("The shape is NULL");
+ return aRet;
+ }
+
+ TopoDS_Shape aShape = aRefShape->GetValue();
+ if (aShape.IsNull()) {
+ SetErrorCode("The shape is NULL");
+ return aRet;
+ }
+
+ // The shape can be a face, a shell of one face or a compound with one face
+ TopoDS_Face F;
+ if (aShape.ShapeType() == TopAbs_FACE) {
+ F = TopoDS::Face(aShape);
+ }
+ else if (aShape.ShapeType() < TopAbs_FACE) {
+ TopExp_Explorer Exp (aShape, TopAbs_FACE);
+ if (Exp.More()) {
+ F = TopoDS::Face(Exp.Current());
+ Exp.Next();
+ if (Exp.More()) {
+ SetErrorCode("There should be only one face");
+ return aRet;
+ }
+ }
+ }
+ if (F.IsNull()) {
+ SetErrorCode("There are no faces");
+ return aRet;
+ }
+
+ // Face tolerance
+ Standard_Real squareTolerance = BRep_Tool::Tolerance(F);
+ squareTolerance = squareTolerance * squareTolerance;
+
+ // Compute coordinates
+ Handle(Geom_Surface) aSurf = BRep_Tool::Surface(F);
+ aRet = new TColStd_HArray1OfReal (0, nbP * 3 - 1);
+
+ Standard_Real U1,U2, V1,V2;
+ BRepTools::UVBounds(F, U1, U2, V1, V2);
+ Standard_Real dU = U2 - U1;
+ Standard_Real dV = V2 - V1;
+
+ Standard_Real tol = 1.e-4;
+ Standard_Real pc = Precision::Confusion();
+
+ int iCLower = theUVlist->Lower();
+ for (int iP = 0; iP < nbP; iP++) {
+ Standard_Real U = theUVlist->Value(iCLower + iP * 2);
+ Standard_Real V = theUVlist->Value(iCLower + iP * 2 + 1);
+
+ if (isNormalized) {
+ // Get real parameters from given normalized ones in [0, 1]
+ if (!(-pc < U && U < 1 + pc) || !(-pc < V && V < 1 + pc)) {
+ SetErrorCode("Normalized parameter is out of range [0,1]");
+ return aRet;
+ }
+ U = U1 + dU * U;
+ V = V1 + dV * V;
+ }
+
+ gp_Pnt2d aP2d (U, V);
+
+ BRepClass_FaceClassifier aClsf (F, aP2d, tol);
+ if (aClsf.State() != TopAbs_IN && aClsf.State() != TopAbs_ON) {
+ SetErrorCode("Given parameters are out of face");
+ return aRet;
+ }
+ gp_Pnt surfPnt = aSurf->Value(U, V);
+
+ aRet->SetValue(iP * 3 , surfPnt.X());
+ aRet->SetValue(iP * 3 + 1, surfPnt.Y());
+ aRet->SetValue(iP * 3 + 2, surfPnt.Z());
+ }
+
+ SetErrorCode(OK);
+ return aRet;
+}
+
//=============================================================================
/*!
* SelfIntersected2D
