How to display point cloud

Hello,

If your only interest is in displaying points, I am not sure if opencascade is the right tool for the right job. Did you consider using Paraview (www.paraview.org)?

Regards,

Marco

If you have a million gp_Pnt Points you can try the following:

Build vertices and add them to a compound.

// CODE ---------------
TopoDS_Compound vertexCompound;
BRep_Builder compoundBuilder;
compoundBuilder.MakeCompound(vertexCompound);

for(int i=1; i<=pntHSeq->Length(); i++)
compoundBuilder.Add(vertexCompound, BRepBuilderAPI_MakeVertex().Vertex());

// END ----------------------

Now, you should be able to display the vertexCompound in your View.

Good luck.
Let us know if it worked.

Cheers,

Dennis

hi huangye,

you can also inherit from AIS_InteractiveObject. Look at
http://www.opencascade.org/org/forum/thread_1125/
to get an idea.

Pawel