Changes between Version 1 and Version 2 of FDORfc13


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Timestamp:
Dec 12, 2007, 5:30:34 PM (16 years ago)
Author:
jackwang
Comment:

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  • FDORfc13

    v1 v2  
    2424== Overview ==
    2525
    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.
     26The 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
    2728Currently, 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
    2829http://wiki.osgeo.org/index.php/WMS_Tile_Caching
    2930and
    3031http://portal.opengeospatial.org/files/?artifact_id=23206
     32
    3133We’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.
    3234 
     
    3638== Proposed Solution ==
    3739In order to facilitate the implementation, some new WMS Override APIs will be added.
     40
    3841The following section outlines the necessary unmanaged and managed code changes as well as the corresponding configuration xml document change.
    3942