You could use the vtkGlyph3D filter if i got the question right. glyph->SetInput(Polys);//your dataset vtkPolyData *shape = vtkPolyData::New(); shape could be the result of a ConeSource, LineSource etc. glyph->SetSource(shape); glyph->Update(); and then mapper-actor-ren Sergios Goudanis ----------------- PPC S.A. Thermal Projects Eng-Constructions Dept.