IDirectContext3DServer.GetBoundingBox
Description:
Reports a bounding box of the geometry that this server submits for drawing.
Reports a bounding box of the geometry that this server submits for drawing.
Remarks:
Revit uses the bounding box when navigating views, e.g., when a Zoom to Fit command is issued. The reported bounding box does not have to be tight. However, there may be unintended side-effects if the box is inconsistent with the submitted geometry.