I'm making an app that's primarily for visualization, not manipulation. That is, I just want to show the user how things relate to each other, they don't have to be able to change much. My app is based off of 'wxDisplay.py' and 'OCCViewer.py'.
What I've got is a bunch of solid objects, lines, and points. Everything is passed into DisplayShape (in class Viewer3d from OCCViewer.py). The solids are passed in as OCCTopoDS.TopoDS_Shell, the lines are OCCTopoDS.TopDS_Edge, the points are OCCTopoDS.TopoDS_Vertex. All are made into objects of type AIS_Shape, which are displayed. Note that the lines/points are *NOT* edges or vertices of the shells: they could be anywhere, inside a shell, next to it, whatever.
My problem: I want to be able to see the lines & points through the solids. I tried making the solids partially transparent, but that isn't really what I want, because the solids still obscure the view of the other geometry unless I make them so transparent you can hardly see the solids anymore. What I want is for the lines & points to be completely visible to the viewer, even if they are on the other side of a non-transparent solid, i.e. their visualization needs to be 'on top' of the solids. I tried using Deactivate on the solids and Activate on the lines/points, which lets me select them through the solids but I still can't see them. Anyone have an idea of what path I should try next?