发明名称 Method and apparatus for rendering a three-dimensional object with a plurality of dots
摘要 To render a three-dimensional object by using a plurality of dots, surfaces forming the three-dimensional object are divided into several regions based on curvature of the surfaces forming the object. A plurality of dots are arranged on the surfaces forming the object in accordance with rules which are different with respect to the different regions. To render a sphere by using a plurality of dots, spherical surfaces of the sphere are divided into polar regions and the equatorial region. In polar regions, dots whose number increase in accordance with radius around the axis of revolution are distributed at an equal interval on coaxial circumferences on polar regions. In the equatorial region, a certain number of dots are distributed at an equal interval on coaxial circumferences on the equatorial region so that a dot on the circumference are placed between dots on adjacent circumferences in the equatorial region.
申请公布号 US5422988(A) 申请公布日期 1995.06.06
申请号 US19920904356 申请日期 1992.06.25
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 KOIDE, AKIO
分类号 G06T15/20;(IPC1-7):G06F15/00 主分类号 G06T15/20
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