Method for geo-registration of imported bit-mapped spatial data
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United States of America Patent
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-
May 23, 1995
Grant Date -
N/A
app pub date -
Mar 17, 1993
filing date -
Mar 17, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method which allows the user to convert several data layers from one GIS into another. The user creates a template map of the area of interest. The template is an 'all points' map which, when graphed, would appear as a black polygon identical in shape to the area of interest. Using the first GIS, the template is converted to a file in bit-mapped format. All zero bits in this file are identified and their position in the file noted. This information is referred to as the transform function. For each data layer to be converted, the first GIS is used to display a map of the proper extent. This display is converted to a file in bit-mapped format and the transform function used to delete non-data bits which correspond to the zero bits identified in the template file. The resulting, modified, bit-map is imported into the second GIS.
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Cited Art Landscape
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