Three-dimensional solid arranging/editing method in a computer graphic system and system

摘要

A solid graphic arranging/editing method enables a user to enter or edit a solid graphic viewed on a display. According to the method, three points of a rectangular parallelepiped are specified, and the solid is arranged to be inscribed within the parallelepiped. A reference plane is then defined and a first point on the reference plane is specified. A local coordinate plane is also defined and a second point is specified on the local coordinate plane. A rectangle lying in the local coordinate plane and having the first and second points as diagonal vertices is then displayed. Auxiliary lines perpendicular to the local coordinate plane and passing the second point are also displayed and a third point on a selected auxiliary line is displayed. A rectangular parallelepiped is then displayed having the rectangle as one surface and the third point as a vertex. The position of the solid and the scales are then adjusted such that the solid is inscribed in the rectangular parellelepiped.