Changes between Version 1 and Version 2 of FDORfc13
- Timestamp:
- 12/12/07 17:30:34 (17 years ago)
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FDORfc13
v1 v2 24 24 == Overview == 25 25 26 The tile caching technology is a commonly used approach to optimize the delivery of map imagery across the Internet. Many applications such as [Microsoft® Virtual Earth™] and [Google Earth] have leveraged it and got significant improvement of the user experience. 26 The tile caching technology is a commonly used approach to optimize the delivery of map imagery across the Internet. Many applications such as [http://www.microsoft.com/virtualearth/ Microsoft® Virtual Earth™] and [http://earth.google.com/ Google Earth] have leveraged it and got significant improvement of the user experience. 27 27 28 Currently, WMS doesn’t support it appropriately. But some people have written proposals in order to introduce it to the WMS standard. Refer to those articles at 28 29 http://wiki.osgeo.org/index.php/WMS_Tile_Caching 29 30 and 30 31 http://portal.opengeospatial.org/files/?artifact_id=23206 32 31 33 We’ve started preparing for tile caching support in FDO. And we found that in most cases the GetMap request in current WMS protocol can be used for the tiling query. One exception is for the case where some stylization rules applied. For example, the following picture shows that duplicated labels are drawn when tiling is done. 32 34 … … 36 38 == Proposed Solution == 37 39 In order to facilitate the implementation, some new WMS Override APIs will be added. 40 38 41 The following section outlines the necessary unmanaged and managed code changes as well as the corresponding configuration xml document change. 39 42