发明名称 |
METHOD OF PRE-FETCHING MAP DATA FOR RENDERING AND OFFLINE ROUTING |
摘要 |
The present application describes techniques for fetching map data as a selected subset of entire map data available, by selecting map data tiles corresponding to an area that encompasses a first route and to an area encompassing a secondary route based on the first route. An amount of map data accessed may be adjusted based on a priority of the secondary route.
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申请公布号 |
US2013147820(A1) |
申请公布日期 |
2013.06.13 |
申请号 |
US201213546134 |
申请日期 |
2012.07.11 |
申请人 |
KALAI ILJYA;SILISKI MICHAEL;MORRISON JERRY;ITO KEITH;MILLER ANDREW T.;GOOGLE INC. |
发明人 |
KALAI ILJYA;SILISKI MICHAEL;MORRISON JERRY;ITO KEITH;MILLER ANDREW T. |
分类号 |
G06T1/00 |
主分类号 |
G06T1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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