THREE-DIMENSIONAL MAP DISPLAY SYSTEM
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United States of America Patent
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Issued Date -
Oct 26, 2017
app pub date -
Jul 12, 2017
filing date -
Jan 20, 2015
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Abstract
A three-dimensional map is displayed over the whole display area with a relatively light load using a detailed model database including feature data with a higher accuracy of details and a simple model database including feature data with a lower accuracy of details. A first range is set within a predetermined distance from a view point in a line-of-sight direction as a detailed model drawing range in which a detailed three-dimensional map is drawn using the detailed model. A second range in which a simple three-dimensional map is drawn using the simple model is set to include a range where the detailed three-dimensional map is not drawn. The detailed three-dimensional map and the simple three-dimensional map are both displayed by superimposing the detailed three-dimensional map in front of the simple three-dimensional map.
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