发明名称 |
PLANE-ELEMENT DISTORTION DETECTION SYSTEM, AND PLANE-ELEMENT DISTORTION DETECTING METHOD AND PROGRAM |
摘要 |
A plane-element distortion detection system for detecting distortion of plane elements created by a computer-aided design system that forms a surface of a 3-D model by combining the plane elements covering at least a part of the 3-D model includes : means for obtaining normal vectors at difference positions on each of selected ones of the plane elements (S213), means for calculating a value indicative of the relationship between adjacent ones of the normal vectors (S214), and plane-element distortion determining means for determining that distortion occurs in the plane element when the value indicative of the relationship between the adjacent normal vectors exceeds a predetermined value (S215,S216). The system reduces occurrence of distortion in shape during a morphing operation on a three-dimensional model comprised of curved patches in which a plurality of normal vectors are defined. |
申请公布号 |
WO2008012668(A3) |
申请公布日期 |
2008.06.26 |
申请号 |
WO2007IB02152 |
申请日期 |
2007.07.27 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA;FUKAZAWA, KAZUHIRO;FUJITA, HISASHI;NAGATA, RYUJI |
发明人 |
FUKAZAWA, KAZUHIRO;FUJITA, HISASHI;NAGATA, RYUJI |
分类号 |
G06F17/50 |
主分类号 |
G06F17/50 |
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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