Combine some Topo_Edges to a TopoShape or TopoCompound

dvdjimmy
Tue, 08/14/2007 - 17:35

Forums:

Dear all,

I have just generated a BSplineCurve with GeomAPI_Interpolate and have converted this BSplineCurve into a TopoEdge with BRep_Builder.

Now I would like to add this TopoEdge to an already existing TopoShape or TopoCompound.

I tried to use the Add from BRep_Builder but I think that this might only work with Shapes.

Currently my code looks like this:

BRep_Builder aBuilder;

aBuilder.MakeEdge(aTopoEdge,anInterpolationCurve,0.001);

aBuilder.Add(aTopoShape,aTopoEdge);

But with this code I get an exception and the programm is halted at the free function :(

Could someone help me out on how I have to do it the right way to get some topos grouped together?

Thx in advance.

Joachim

dvdjimmy
Fri, 08/17/2007 - 10:25

Hmm..

Is there really nobody who knows how to combine some TopoEdges or TopoWires into one TopoShape or TopoCompound?

I experimented quiet a lot during the last days but its still not working :(

Thank you in advance for any help!!

Joachim

P G
Fri, 08/17/2007 - 11:38

Hi,
See how to add various topological entities to a Compound.

============================

BRep_Builder builder;
TopoDS_Compound Comp;
builder.MakeCompound(Comp);

TopoDS_Vertex aVertex = BRepBuilderAPI_MakeVertex(gp_Pnt(-20,10,-30));
builder.Add(Comp,aVertex);

gp_Lin line(gp_Ax1(gp_Pnt(10,10,10),gp_Dir(1,0,0)));
TopoDS_Edge anEdge = BRepBuilderAPI_MakeEdge(line,-20,10);
builder.Add(Comp,anEdge);

gp_Sphere sphere (gp_Ax3(gp_Pnt(-80,0,0),gp_Dir(1,0,0)),150);
TopoDS_Face aFace = BRepBuilderAPI_MakeFace(sphere,0.1,0.7,0.2,0.9);
builder.Add(Comp,aFace);

TopoDS_Shape aBox = BRepPrimAPI_MakeBox(gp_Pnt(-60,0,0),30,60,40);
builder.Add(Comp,aBox);

bye

- PG

dvdjimmy
Fri, 08/17/2007 - 12:03

This is exactly what I was looking for.

Thx a lot PG