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0023945: GeomAdaptor_Surface fails to compute the first derivatives on the surface of the attached face

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Add test case for this fix
Add new draw-command OCC23945 for testing this fix
Add new draw-command for testing tis fix
This commit is contained in:
ifv
2013-05-31 17:13:38 +04:00
parent a0f8845f56
commit 470ebb43f2
4 changed files with 101 additions and 11 deletions
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2
src/GeomAdaptor/GeomAdaptor_Surface.cdl
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@@ -377,7 +377,7 @@ is
Span (me;Side :Integer; Ideb,Ifin:Integer;
OutIdeb,OutIfin:out Integer;
NbKnots : Integer )
FKIndx, LKIndx : Integer )
is private;
IfUVBound (me;U,V :Real;Ideb,Ifin,IVdeb,IVfin :out Integer;

23
src/GeomAdaptor/GeomAdaptor_Surface.cxx
View File

@@ -1254,20 +1254,22 @@ Standard_Boolean GeomAdaptor_Surface::IfUVBound(const Standard_Real U,
const Standard_Integer VSide) const
{
Standard_Integer Ideb,Ifin;
Standard_Integer anUFKIndx = myBspl->FirstUKnotIndex(),
anULKIndx = myBspl->LastUKnotIndex(),
aVFKIndx = myBspl->FirstVKnotIndex(), aVLKIndx = myBspl->LastVKnotIndex();
myBspl->LocateU(U, PosTol, Ideb, Ifin, Standard_False);
Standard_Boolean Local = (Ideb == Ifin);
Span(USide,Ideb,Ifin,Ideb,Ifin,myBspl->NbUKnots());
Span(USide,Ideb,Ifin,Ideb,Ifin,anUFKIndx,anULKIndx);
Standard_Integer IVdeb,IVfin;
myBspl->LocateV(V, PosTol, IVdeb, IVfin, Standard_False);
if(IVdeb == IVfin) Local = Standard_True;
Span(VSide,IVdeb,IVfin,IVdeb,IVfin,myBspl->NbVKnots());
Span(VSide,IVdeb,IVfin,IVdeb,IVfin,aVFKIndx,aVLKIndx);
IOutDeb=Ideb; IOutFin=Ifin;
IOutVDeb=IVdeb; IOutVFin=IVfin;
return Local;
}
//=======================================================================
//function : Span <private>
//purpose : locates U,V parameters if U=UFirst or U=ULast,
@@ -1280,21 +1282,22 @@ void GeomAdaptor_Surface::Span(const Standard_Integer Side,
const Standard_Integer Ifin,
Standard_Integer& OutIdeb,
Standard_Integer& OutIfin,
const Standard_Integer NbKnots) const
const Standard_Integer theFKIndx,
const Standard_Integer theLKIndx) const
{
if(Ideb!=Ifin)//not a knot
{
if(Ideb<1) { OutIdeb=1; OutIfin=2; }
else if(Ifin>NbKnots) { OutIdeb=NbKnots-1; OutIfin=NbKnots; }
else if(Ideb>=(NbKnots-1)) { OutIdeb=NbKnots-1; OutIfin=NbKnots; }
else if(Ifin<=2) { OutIdeb=1; OutIfin=2; }
if(Ideb<theFKIndx) { OutIdeb=theFKIndx; OutIfin=theFKIndx+1; }
else if(Ifin>theLKIndx) { OutIdeb=theLKIndx-1; OutIfin=theLKIndx; }
else if(Ideb>=(theLKIndx-1)) { OutIdeb=theLKIndx-1; OutIfin=theLKIndx; }
else if(Ifin<=theFKIndx+1) { OutIdeb=theFKIndx; OutIfin=theFKIndx+1; }
else if(Ideb>Ifin) { OutIdeb=Ifin-1; OutIfin=Ifin; }
else { OutIdeb=Ideb; OutIfin=Ifin; }
}
else
{
if(Ideb<=1){ OutIdeb=1; OutIfin=2;}//first knot
else if(Ifin>=NbKnots) { OutIdeb=NbKnots-1;OutIfin=NbKnots;}//last knot
if(Ideb<=theFKIndx){ OutIdeb=theFKIndx; OutIfin=theFKIndx+1;}//first knot
else if(Ifin>=theLKIndx) { OutIdeb=theLKIndx-1;OutIfin=theLKIndx;}//last knot
else
{
if(Side==-1){OutIdeb=Ideb-1; OutIfin=Ifin;}