发明名称 |
Generation of free-form surface model by reversible rounding operation |
摘要 |
A method of generating a free-form surface model includes the steps of applying linear transformation to a lattice polygon model to generate vertices of a free-form surface model corresponding to respective vertices of the lattice polygon model, and generating control points of cubic Bezier curves that connect the vertices of the free-form surface model, and that correspond to respective edges of the lattice polygon model.
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申请公布号 |
US6867769(B1) |
申请公布日期 |
2005.03.15 |
申请号 |
US20000526558 |
申请日期 |
2000.03.16 |
申请人 |
RICOH COMPANY, LTD.;LATTICE TECHNOLOGY, INC. |
发明人 |
TORIYA HIROSHI;HARADA TSUYOSHI;YAJIMA MAKOTO;WAKITA AKIRA |
分类号 |
G06T17/30;G06F17/50;G06T11/00;G06T11/20;G06T15/00;G06T17/00;G06T17/20;G06T19/00;(IPC1-7):G06T17/00 |
主分类号 |
G06T17/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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