Title:
【発明の名称】図面データの補正方法
Document Type and Number:
Japanese Patent JP2619394
Kind Code:
B2
Abstract:
PURPOSE:To ensure the effective correction of drawing data by applying semilinear transformation to elements within a drawing of facilities based on the corresponding relations among the main elements like the roads, blocks, boundary, etc., after absorbing the error of a page boundary between two background maps. CONSTITUTION:A reference point offset (XF, YF) and a coordinate axis tilting angle theta are obtained from the comparison carried out between the page boundary coordinate systems of drawing groups I and D. Then a specific page D10 is noticed for list-up of overlapping pages I07-I13. For instance, broken lines L71 and L81 which connect the coordinates the boundary positions of pages I07 and I08 overlapping the page D10 are made continuous to each other. Thus a line L100 is obtained. Furthermore, only the inside part of the page D10 is extracted for specification of a correction range. The external form of a block and a road boundary diagram are used for a specific pattern common to both drawings I and D and the semilinear transformation is applied when the correction is carried out for each divided area. As a result, the information can be properly processed and corrected when matching is secured among plural drawings or maps.
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Inventors:
Shigeru Shimada
Nobuyuki Chikada
Nobuyuki Chikada
Application Number:
JP17096087A
Publication Date:
June 11, 1997
Filing Date:
July 10, 1987
Export Citation:
Assignee:
株式会社日立製作所
東京電力株式会社
東京電力株式会社
International Classes:
G06F17/50; G06T1/00; G06T11/60; (IPC1-7): G06T1/00; G06F17/50
Domestic Patent References:
| JP472268B2 |
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)