One of the custom objects that we use has a larger “perceived” bounding box than its constituent geometry, due to part of the object being drawn in a mirrored way.
I have tried to override
GetBoundingBox(CRhinoView* pView) and that gives good results for clipping (i.e. the virtual, mirrored part is not clipped upon zooming into that part).
I find, however, that the zoom extents all command (ZEA) does not take this larger bounding box into account. It always zooms to the geometry, whereas I want it to zoom to the geometry AND the virtual, mirrored part. How do I tell Rhino that my object should be shown the way I want?
In ASCII art:
[ ] viewport G only geometry M|G geometry with mirrored part M|[G] - current result of zoom extents all, only the G part is in the viewport [M|G] - desired result of zoom extents all, both geometry and mirrored part are visible (I hope this is clear?!)