Tue, 11/02/2010 - 00:15
hello
i have problem with make a compound shape.
//////the code is////
STEPControl_Reader reader;
reader.ReadFile("ashape.step");//shape is composed of 2 surfaces
....
TopoDS_Shape shape = reader.Shape();
TopTools_Array1OfShape TabShape(1,100);
TopExp_Explorer Ex;
for (Ex.Init(shape,TopAbs_FACE); Ex.More();Ex.Next()) {
TopoDS_Face aFace =TopoDS::Face(Ex.Current());
TabShape.SetValue(i,aFace);
/////i want to make a compound///
BRep_Builder builder;
TopoDS_Compound Comp;
builder.MakeCompound(Comp);
builder.Add(Comp,TabShape(1));
builder.Add(Comp,TabShape(2));
Handle(AIS_Shape) ashape1=new AIS_Shape(Comp);
myAISContext->Display(ashape1,Standard_False);
is compiling without error but is interrupt just on display.
is any one have somme suggestion!!
best regards.
Tue, 11/02/2010 - 11:04
Hi,
Check more carefully your source code.
The provided example has at least not initialized variable "i" and missed closing bracket "}".
Besides you may check each adding face for IsNull and IsValid.
Regards
Sergey
Tue, 11/02/2010 - 16:39
thanks for replay
is not a problem of the variable because it begin by
int i=1;
and the bracket "}" existe .
and when i put only this:
BRep_Builder builder;
TopoDS_Compound Comp;
builder.MakeCompound(Comp);
builder.Add(Comp,TabShape(1));
it is displaying withowt error
but when i add
builder.Add(Comp,TabShape(2));
it doesn't work.
regards
Tue, 11/02/2010 - 16:55
thanks the problem was resolved by:
if (!TabShape(2).IsNull())
{
....
}
now ,i have a problem to make 2 bsplinesurface into 1 bsplinesurface!!!
Handle(Geom_Surface) Surface = BRep_Tool::Surface(aFace);
Handle(Geom_BSplineSurface) aBSplineSurface =GeomConvert::SurfaceToBSplineSurface(Surface);
///how to make 2 BSplineSurfaces into 1 bsplinesurface!!!!
best regards