Apparatus and method for a route instruction service with a three-dimensional model
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United States of America Patent
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Sep 13, 2005
Grant Date -
Jan 22, 2004
app pub date -
Jun 8, 2001
filing date -
Jun 9, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a method for implementing a route guidance service in a telecommunications system. In order for it to be possible to utilize both the data transmission capacity of the telecommunications system and the memory and processing capacity of the user workstation efficiently in the execution of a route animation based on a three-dimensional model, the description of the 3D model sent to the terminal is restricted by first defining a route between desired route points and thereafter selecting from the 3D model comprising surface elements at least some of the surface elements that are visible to said route. A partial model comprising only these selected surface elements is transmitted to the user workstation, and in addition the requisite description of how the route animation is constructed on the basis of the partial model.
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