Navigation system for a 3D virtual scene (XIII)

Abstract

A navigation system for navigating a three-dimensional (3D) scene that includes a model or object with which a user can interact. The system accommodates and helps both novice and advanced users. To do this, the system provides allows a user to place a point on a model surface that is used as a focus point for tool operations. The focus point is a geometry sphere that shows orientation and relative position of the view in the scene.