Patent Document ID: 6128020
Application ID: 08850814
Patent Status: 1

Claim One:
1. A computer system supporting a design operation of a three-dimensional object, comprising: a two-dimensional data storage section to store a plurality of existing two-dimensional drawing data; a two-dimensional data reference section which refers to said plurality of existing two-dimensional drawing data stored in said two-dimensional data storage section, and which specifies one of said plurality of existing two-dimensional drawing data, said specified one two-dimensional drawing data including a plurality of plane shapes; a display processing section to display said specified one two-dimensional drawing data on a sketch screen; a two-dimensional data take-in section which selects at least a portion of said displayed one two-dimensional drawing data by specifying at least one of said plurality of plane shapes in said specified one two-dimensional drawing data displayed on said sketch screen, and which automatically inputs said specified at least one plane shape; and a three-dimensional conversion section converting for each of the specified at least one of said plurality of plane shapes two-dimensional drawing data to a data structure of three-dimensional data based on the two-dimensional drawing data of said specified at least one plane shape automatically inputted by said two-dimensional data take-in section, said two-dimensional drawing data including an x-coordinates value, a y-coordinates value, and control parameters including a starting point and an ending point, and said three-dimensional data including the x-coordinates value, the y-coordinates value, a z-coordinates value, and the control parameters, said z-coordinates value being set to an initial value.