Patent ID: 6222557
Filing Date: 2001-04-24
Classification: G06T

Abstract:
A method for navigating a user viewpoint of a rendered data landscape comprising at least one graphics primitive within an information visualization system, comprising the steps of:(i) determining a bounding box for at least each graphics primitive in said rendered data landscape, each bounding box defining a volume which encloses said graphics primitive, said bounding box being resized and repositioned when a respective graphics primitive is repositioned, added, removed and resized in said rendered data landscape;(ii) defining at least one constraint to limit movement of said user viewpoint, said at least one constraint being defined relative to one of said determined bounding boxes;(iii) receiving input from a user representing a desired movement of said viewpoint with respect to said data landscape;(iv) comparing said desired movement with said at least one defined constraint and effecting said desired movement to an updated position to the extent permitted within said at least one constraint;(v) re-rendering said data landscape from said updated position.