System and method for determining a spatial hierarchy for polygonal data by using cube-root scaling
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United States of America Patent
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N/A
Issued Date -
Jul 7, 2005
app pub date -
Jun 21, 2004
filing date -
Mar 27, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method of determining a spatial hierarchy for polygon data, comprises obtaining a switching range, and determining a polygon density for the spatial hierarchy, using the switching range and a cube-root scaling factor. Another method of determining a spatial hierarchy for polygon data, comprises determining a cube-root scaling factor based on an altitude parameter, and using the cube-root scaling factor to scale level-of-detail switching ranges for the spatial hierarchy. The methods may be embodied in a computer program (or some unit of code) stored on a computer readable medium, such as a compact disc (i.e. CD), and/or transmitted via a computer network, such as the Internet, or another transmission medium.
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