Patent ID: 6281906
Filing Date: 2001-08-28
Classification: G06F

Abstract:
A method for the modification of three-dimensional objects by means of an input device, comprising the following steps:displaying a three-dimensional representation of a three dimensional object on a computer screen;displaying a representation of a three-dimensional coordinate system on the computer screen with the three-dimensional coordinate system being assigned to the displayed three-dimensional object, wherein the representation of the assigned coordinate system displayed on the screen is provided with modification points at its origin and at the endpoints of the axes displayed and a modification of the coordinate system can be performed by clicking on these symbols;selecting one of the axes of the three-dimensional coordinate system assigned to the object by means of an operation of the input device, with the input operation relating to the representation of the coordinate system displayed on the screen;shifting the origin of the coordinate system assigned to the object within a global three-dimensional coordinate system along a line defined by the orientation of the selected axis of the assigned coordinate system within the global three-dimensional coordinate system, and in one direction of the line which is determined by an operation performed with the input device;computing the three-dimensional object relative to the global coordinate system after moving the object in accordance with the movement of the origin of the assigned coordinate system; anddisplaying a representation of the shifted three-dimensional object on the computer screen.