首页> 外国专利> B-SPLINE CURVE GENERATING SYSTEM BASED ON CURVATURE VECTOR DESIGNATION

B-SPLINE CURVE GENERATING SYSTEM BASED ON CURVATURE VECTOR DESIGNATION

机译:基于曲线矢量指定的B样条曲线生成系统

摘要

PURPOSE:To directly solve a higher order equation by convergent calculation by calculating a B-spline curve based on the linear and second order derivative vectors to satisfy a designated curvature vector and a designated passing point sequence. CONSTITUTION:A NOT vector calculating means 2 assumes a virtual passing point for the designated passing point sequence and calculates a corresponding NOT vector, and a linear/second order derivative vector calculating means 3 calculates the linear derivative vector and the second order derivative vector to satisfy the designated curvature vector. Further, a B-spline curve calculating means 4 calculates the B-spline curve based on the NOT vector obtained by the NOT vector calculating means 2, the linear derivative vector and the second order derivative vector obtained by the linear/second order derivative vector calculating means 3, and the designated passing point sequence. Thus, the higher order equation can be directly solved by the convergent calculation.
机译:目的:通过基于线性和二阶导数向量计算B样条曲线来满足指定的曲率向量和指定的通过点序列,通过收敛计算直接求解高阶方程。构成:非向量计算装置2假设指定通过点序列的虚拟通过点并计算相应的非向量,线性/二阶导数向量计算装置3计算线性导数向量和二阶导数向量以满足指定的曲率向量。此外,B样条曲线计算装置4基于由NOT向量计算装置2获得的NOT向量,通过线性/二阶导数向量计算获得的线性导数向量和二阶导数向量来计算B样条曲线。均值3和指定的通过点序列。因此,可以通过收敛计算直接求解高阶方程。

著录项

  • 公开/公告号JPH02143385A

    专利类型

  • 公开/公告日1990-06-01

    原文格式PDF

  • 申请/专利权人 NEC SOFTWARE LTD;

    申请/专利号JP19880297546

  • 发明设计人 MAMIYA HITOSHI;

    申请日1988-11-25

  • 分类号G06T11/20;

  • 国家 JP

  • 入库时间 2022-08-22 06:24:48

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号