发明授权
US06912445B2 CAD consulting method, method for detecting inappropriate shape change, data storage medium, and a computer program product
失效
CAD咨询方法，检测不当形状变化的方法，数据存储介质和计算机程序产品
- 专利标题： CAD consulting method, method for detecting inappropriate shape change, data storage medium, and a computer program product
- 专利标题（中）： CAD咨询方法，检测不当形状变化的方法，数据存储介质和计算机程序产品
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申请号： US09793887申请日： 2001-02-28
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公开(公告)号： US06912445B2公开(公告)日： 2005-06-28
- 发明人: Koji Shiroyama , Shunsuke Minami , Yasumasa Kawashima , Kyu Kabata , Nobuhisa Seya
- 申请人： Koji Shiroyama , Shunsuke Minami , Yasumasa Kawashima , Kyu Kabata , Nobuhisa Seya
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Antonelli, Terry, Stout & Kraus, LLP
- 优先权： JP2000-244001 20000807
- 主分类号： G06F17/50
- IPC分类号： G06F17/50 ; G05B19/4097 ; G06T17/00 ; G06F15/60 ; G06F19/00
摘要：
A method for detecting shapes that are undesirable for efficient processing and which occur from tolerance conversion by comparing a geometric relationship of shape elements obtained from shape data before tolerance conversion with a geometric relationship of the shape elements obtained from shape data after tolerance conversion. An inappropriate shape is identified when the compared geometric relationships are not the same.