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0032557: Modeling Data - Use of BRepBuilderAPI_NurbsConvert create 2d p-curves with gaps

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GeomConvert/GeomConvert_1.cxx - method CheckAndSegment is added to adjust surface periodic boundaries
bug32557 - test is updated by new cases
This commit is contained in:
ifv
2021-10-04 14:48:03 +03:00
parent 5b756182c2
commit 9923f08703
3 changed files with 35 additions and 5 deletions
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27
src/GeomConvert/GeomConvert_1.cxx
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@@ -383,6 +383,7 @@ Handle(Geom_BSplineSurface) GeomConvert::SurfaceToBSplineSurface
//
//For cylinders, cones, spheres, toruses
const Standard_Boolean isUClosed = Abs((ULast - UFirst) - 2. * M_PI) <= Precision::PConfusion();
const Standard_Real eps = 100. * Epsilon(2. * M_PI);
//
if (Surf->IsKind(STANDARD_TYPE(Geom_Plane))) {
TColgp_Array2OfPnt Poles (1, 2, 1, 2);
@@ -415,6 +416,11 @@ Handle(Geom_BSplineSurface) GeomConvert::SurfaceToBSplineSurface
if (isUClosed) {
Convert_CylinderToBSplineSurface Convert (Cyl, VFirst, VLast);
TheSurface = BSplineSurfaceBuilder (Convert);
Standard_Integer aNbK = TheSurface->NbUKnots();
if (Abs(TheSurface->UKnot(1) - UFirst) > eps || Abs(TheSurface->UKnot(aNbK) - ULast) > eps)
{
TheSurface->CheckAndSegment(UFirst, ULast, VFirst, VLast);
}
}
else {
Convert_CylinderToBSplineSurface
@@ -431,6 +437,11 @@ Handle(Geom_BSplineSurface) GeomConvert::SurfaceToBSplineSurface
if (isUClosed) {
Convert_ConeToBSplineSurface Convert (Co, VFirst, VLast);
TheSurface = BSplineSurfaceBuilder (Convert);
Standard_Integer aNbK = TheSurface->NbUKnots();
if (Abs(TheSurface->UKnot(1) - UFirst) > eps || Abs(TheSurface->UKnot(aNbK) - ULast) > eps)
{
TheSurface->CheckAndSegment(UFirst, ULast, VFirst, VLast);
}
}
else {
Convert_ConeToBSplineSurface
@@ -450,6 +461,11 @@ Handle(Geom_BSplineSurface) GeomConvert::SurfaceToBSplineSurface
//Convert_SphereToBSplineSurface Convert (Sph, UFirst, ULast);
Convert_SphereToBSplineSurface Convert (Sph, VFirst, VLast, Standard_False);
TheSurface = BSplineSurfaceBuilder (Convert);
Standard_Integer aNbK = TheSurface->NbUKnots();
if (Abs(TheSurface->UKnot(1) - UFirst) > eps || Abs(TheSurface->UKnot(aNbK) - ULast) > eps)
{
TheSurface->CheckAndSegment(UFirst, ULast, VFirst, VLast);
}
}
else {
Convert_SphereToBSplineSurface
@@ -468,10 +484,20 @@ Handle(Geom_BSplineSurface) GeomConvert::SurfaceToBSplineSurface
Convert_TorusToBSplineSurface Convert (Tr, VFirst, VLast,
Standard_False);
TheSurface = BSplineSurfaceBuilder (Convert);
Standard_Integer aNbK = TheSurface->NbUKnots();
if (Abs(TheSurface->UKnot(1) - UFirst) > eps || Abs(TheSurface->UKnot(aNbK) - ULast) > eps)
{
TheSurface->CheckAndSegment(UFirst, ULast, VFirst, VLast);
}
}
else if (Strim->IsVClosed()) {
Convert_TorusToBSplineSurface Convert (Tr, UFirst, ULast);
TheSurface = BSplineSurfaceBuilder (Convert);
Standard_Integer aNbK = TheSurface->NbVKnots();
if (Abs(TheSurface->VKnot(1) - VFirst) > eps || Abs(TheSurface->VKnot(aNbK) - VLast) > eps)
{
TheSurface->CheckAndSegment(UFirst, ULast, VFirst, VLast);
}
}
else {
Convert_TorusToBSplineSurface
@@ -575,7 +601,6 @@ Handle(Geom_BSplineSurface) GeomConvert::SurfaceToBSplineSurface
2 , C->Degree(),
periodic, C->IsPeriodic());
}