Title:
EARTH-VOLUME MANAGING APPARATUS
Document Type and Number:
Japanese Patent JP3389006
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable forming of a triangular mesh to match the actual condition of a land to be surveyed by providing a residual green land processing means for controlling so as not to draw any side in a specified residual green land.
SOLUTION: An output 2 of a topography data or the like from an input means 1 is processed by a data processing means 3 to draw a triangle with a geodetic point as an apex by a triangle irregular network(TIN) processing means 5 and topography expressed by a triangular mesh is shown on a display 4. A residual green land processing means 6 performs a control to omit the TIN processing 5 is omitted within the residual green land G so that one side of the triangle of the triangular mesh is set along a zone line P of the residual green land G to keep other two sides from entering the residual green land G. The zone line P is expressed on the display 4 by a moving track of a cursor based on the operation of a keyboard, a mouse or the like.
Inventors:
Hiroki Kimura
Norihito Kawai
Norihiro Sakai
Norihito Kawai
Norihiro Sakai
Application Number:
JP16420696A
Publication Date:
March 24, 2003
Filing Date:
June 25, 1996
Export Citation:
Assignee:
Kumagai Gumi Co., Ltd.
International Classes:
G01C7/02; G01D21/00; G06T1/00; G06T17/05; (IPC1-7): G01C7/02; G01D21/00; G06T1/00
Domestic Patent References:
| JP636013A |
Attorney, Agent or Firm:
Junichi Miyazono