Method for creating three-dimensional shape data, apparatus for creating three-dimensional shape data, and computer-readable storage medium

Abstract

A three-dimensional shape data creating method associates characteristic points and characteristic axes on an image of a sketch drawn by a designer, or the like, with given points and given axes in a vehicle specs box, and determines the placement position and viewpoint direction of the sketch in a three-dimensional space by selecting combinations (point and point, axis and axis, and point and axis) having the minimum error in correspondence (step S140). Then, complex surfaces of given regions depicted in the sketch are created at a time in the three-dimensional space, by forming each cross-section line in a given region depicted in the sketch from a basic line and a fillet joint line (step S150), and a fillet joint surface is created between adjacent ones of the created complex surfaces of the given regions so as to join the complex surfaces (step S160).

Description

technical field [0001] The present invention relates to a three-dimensional shape data forming method for forming three-dimensional shape data of a three-dimensional object from an outline of the three-dimensional object formed by a designer or the like, and also relates to an apparatus and a computer-readable storage medium for forming three-dimensional shape data. Background technique [0002] As in Japanese Patent Application Publication No.6-149943 (JP-A-6-149943), Japanese Patent Application Publication No.2004-206262 (JP-A-2004-206262), Japanese Patent Application Publication No.6-301751 ( JP-A-6-301751) and Japanese Patent Application Publication No. 10-269380 (JP-A-10-269380), there have been proposed various methods for forming a three-dimensional object from a schematic diagram of a three-dimensional object by a designer. A method of forming three-dimensional shape data of shape data. For example, JP-A-6-149943 discloses a method for forming a three-dimensional ob...

AI Technical Summary

Problems solved by technology

In this case, if the fillet portion is formed by a circular arc, different curvatures appear in the formed curved surface, thus making it impossible to form a high-quality curved surface

In order to avoid such different curvatures, the user needs to specify the start line and end line of the fillet part, and specify the scanning profile, resulting in deterioration of operating efficiency

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