Title:
METHOD AND DEVICE FOR AUTOMATICALLY PREPARING POLYGON AROUND REFERENCE LINE
Document Type and Number:
Japanese Patent JP3845137
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prepare a beautiful drawing, in which a polygon is already described, while reducing working burden on the side of preparing person.
SOLUTION: When automatically preparing the polygon record of shape surrounding a reference line (a-b-c) composed of a line unit between adjacent feature points, parallel lines L1-L2' separated just for a prescribed length (w) on both the sides of each line unit are found and intersections B and B' of parallel lines corresponding to the line unit connected to the feature point (b) except for both the ends (a) and (c) of reference line are found. Next, end points A, A', C and C' corresponding to these points (a) and (c) are respectively set to the parallel lines on both the sides of line unit started from both the ends (a) and (c) of reference line, and these end points and these intersections B and B' are connected (A-B-C-C'-B'-A'-A) according to the arranging order of correspondent feature points on the reference line. Besides, the information of display attribute (such as the designation of display color) inside the polygon is added to the polygon record.
Inventors:
Kitaura Shiro
Takeshi Taniguchi
Takeshi Taniguchi
Application Number:
JP35258795A
Publication Date:
November 15, 2006
Filing Date:
December 28, 1995
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
International Classes:
G06T1/00; G09B29/00; G06F17/50; G06T11/60; (IPC1-7): G06T1/00; G06F17/50; G09B29/00
Domestic Patent References:
| JP7200860A | ||||
| JP4267486A | ||||
| JP3149678A |
Attorney, Agent or Firm:
Haruyuki Tanaka
Fumihiro Hasegawa
Fumihiro Hasegawa
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