Curve rendering device, curve rendering method, curve rendering program, and integrated circuit

A curve rendering device is provided which is capable of judging whether a further approximation process is necessary for an approximation curve obtained by an immediately previous approximation process, and includes: a path dividing unit for calculating segmentation points on a center line; an outl...

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Bibliographic Details
Main Authors ITO YASUHIRO, MORIYAMA TAKAAKI
Format Patent
LanguageEnglish
Published 28.07.2015
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC DIGITAL DATA PROCESSING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
SEALS
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Summary:A curve rendering device is provided which is capable of judging whether a further approximation process is necessary for an approximation curve obtained by an immediately previous approximation process, and includes: a path dividing unit for calculating segmentation points on a center line; an outline point calculating unit for calculating, for each of the segmentation points, two offset points; a judging unit for calculating a distance between offset points, and judging a ratio of the longer distance to the shorter distance is greater than a predetermined value; and a curve forming unit for approximating, between two partial outlines, the longer one of the two partial outlines by using a greater number of line segments than line segments used to approximate the shorter one of the two partial outlines when the ratio is judged to be greater than the predetermined value.
Bibliography:Application Number: US201213699157