Input device for 3-dimensional coordinates

Abstract

Abstract PURPOSE:To improve the input efficiency of line and surface data and to add these data to a stereoscopic picture for surface model display with correction, by producing simultaneously both line and surface data related with each other for each point when the 3-surface diagram data is produced. CONSTITUTION:A 1st coordinate surface XY is chosen among those three coordinate surfaces XY, ZY and XZ by a stylus 3. Then the surface XY is displayed on a screen 29 in a 3-surface diagram production mode. When the stylus 3 is set on a coordinate area 2a of a table surface, a cursor is displayed on the screen 29. A surface attachment designation mode is set with push of a closed loop surface designating area. When a connection point key is pushed by the stylus 3, the relationship is secured by a data production means 21 between surface and line data for input of a data number, a surface number, an apex number, the XY 2-dimensional coordinates and attributes. When the input is through with all line and surface data, a perspective projection pattern of the surface XY is inputted. Then the surfaces ZY and XZ are selected to proceed to the next process and all data on X, Y, and Z are decided. Thus the projected pattern of the surface XZ is displayed at a time.

Inventors

• 👤 Susumu Nishikawa
• 👤 進 西川

Bibliographic Details