| 摘要 |
A three-dimensional model displaying method of displaying on a display screen a three-dimensional model expressed in a computer in the field of CAD or CAM. The quadrangular patches of the upper interface of a three-dimensional model is approximated with rectangular regions along the x-axis and y-axis of a two-dimensional coordinate system on the display screen. Accordingly, it is unnecessary to perform the operation of painting quadrangles irregular in configuration, and therefore the patch painting process can be achieved at high speed and with high accuracy.
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