Invention Grant
- Patent Title: Composition of raster and vector graphics in geographic information systems
- Patent Title (中): 地理信息系统中光栅和矢量图形的组成
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Application No.: US10880940Application Date: 2004-06-29
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Publication No.: US07792331B2Publication Date: 2010-09-07
- Inventor: Piotr Balaga , Philip Landman
- Applicant: Piotr Balaga , Philip Landman
- Applicant Address: CA Victoria, British Columbia
- Assignee: ACD Systems, Ltd.
- Current Assignee: ACD Systems, Ltd.
- Current Assignee Address: CA Victoria, British Columbia
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06K9/32 ; G09C5/00

Abstract:
A method for editing composite geographical images, including importing a raster geographical map file, the raster file including geographical information identifying raster image data, global positioning reference data and a first projection that transforms geographical coordinates to linear coordinates, importing a vector geographical map file, the vector file including geographical information identifying vector objects, rendering a two-dimensional raster image including transforming linear coordinates to geographical coordinates according to the inverse of a prescribed second projection that transforms geographical coordinates to linear coordinates, and re-projecting the geographical coordinates to linear coordinates according to the first projection, rendering a two-dimensional vector image including projecting the vector objects according to the prescribed second projection, compositing the two-dimensional image raster image and the two-dimensional vector image as layers of a composite image, and editing the composite image. A system and a computer readable storage medium are also described and claimed.
Public/Granted literature
- US20050285876A1 Composition of raster and vector graphics in geographical information systems Public/Granted day:2005-12-29
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