WATERSHED EXTRACTION PROGRAM AND WATERSHED EXTRACTION DEVICE

Title:

WATERSHED EXTRACTION PROGRAM AND WATERSHED EXTRACTION DEVICE

Document Type and Number:

Japanese Patent JP2010282349

Kind Code:

A

Abstract:

To provide a computer program for extracting a correct watershed even by a user who does not know the watershed in advance.

The watershed extraction program controls a computer. The computer holds altitude data indicating altitudes of a plurality of areas on a map. The areas include a first area. The watershed extraction program causes a processor of the computer to execute: a first procedure of searching for the watershed of water flowing into the first area to the upstream direction based on the altitude data; and a second procedure of deciding whether the area predetermined in the first procedure is correct or not. In the second procedure, when it is decided that the predetermined watershed is not correct, the watershed extraction program causes the processor to execute the first procedure again.

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Inventors:

YAMAGUCHI SATOSHI
IKEDA TSUTOMU

Application Number:

JP2009134067A

Publication Date:

December 16, 2010

Filing Date:

June 03, 2009

Export Citation:

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Assignee:

HITACHI ENG SERVICE

International Classes:

E02B1/00; G06F19/00; G06Q50/00; G06Q50/26

Domestic Patent References:

JP2007011582A	2007-01-18
JP2006127156A	2006-05-18
JP2008050903A	2008-03-06

Attorney, Agent or Firm:

Masaki Goto
Masahiro Fujii
Masaaki Iida

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