首页> 外国专利> METHOD AND DEVICE FOR PLOTTING BEZIER CURVE AND RECORDING MEDIUM STORING BEZIER CURVE PLOTTING PROGRAM

METHOD AND DEVICE FOR PLOTTING BEZIER CURVE AND RECORDING MEDIUM STORING BEZIER CURVE PLOTTING PROGRAM

机译:绘制Bézier曲线并记录介质存储Bezier曲线作图程序的方法和装置

摘要

PROBLEM TO BE SOLVED: To provide a Bezier curve plotting method capable of executing a straight line approximation to a Bezier curve by operation volume smaller than that of a conventional method and plotting the straight line approximation without generating a trouble ending the straight line approximation in an unsuitable state. ;SOLUTION: A cubic Bezier curve specified by Bezier curve data is previously divided into two parts as 1st and 2nd Bezier curves (step S21). Then, straight line approximation processing consisting of an error judgment step and a division step is recursively repeated for respective Bezier curves (step S22) and the outer sides of respective defining polygons of finally obtained Bezier curves are stored as a linear segment data file F2 for the approximate straight line group of the original Bezier curve and plotted.;COPYRIGHT: (C)1999,JPO
机译:解决的问题:提供一种贝塞尔曲线标绘方法,该方法能够以比常规方法小的操作量来执行对贝塞尔曲线的直线近似,并且绘制该直线近似而不会在结束坐标系中的直线近似时产生麻烦。不合适的状态。 ;解决方案:由贝塞尔曲线数据指定的三次贝塞尔曲线被预先分为第一和第二贝塞尔曲线两部分(步骤S21)。然后,针对各个贝塞尔曲线,递归地重复由错误判断步骤和除法步骤组成的直线近似处理(步骤S22),并且将最终获得的贝塞尔曲线的各个限定多边形的外侧存储为线性段数据文件F2,用于原始Bezier曲线的近似直线组并进行绘制。; COPYRIGHT:(C)1999,JPO

著录项

  • 公开/公告号JPH11203489A

    专利类型

  • 公开/公告日1999-07-30

    原文格式PDF

  • 申请/专利权人 FUJI XEROX CO LTD;

    申请/专利号JP19980007987

  • 发明设计人 YAMAZAKI TOSHIO;

    申请日1998-01-19

  • 分类号G06T11/20;

  • 国家 JP

  • 入库时间 2022-08-22 02:36:22

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