Allow admin to specify a rendering buffer per layer
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Key: GEOS-4087
URL: http://jira.codehaus.org/browse/GEOS-4087
Project: GeoServer
Issue Type: Improvement
Components: WMS
Reporter: Andrea Aime
Assignee: Andrea Aime
Fix For: 2.0.3
The rendering buffer is a vendor parameter used for GetMap and GetFeatureInfo.
It takes into account that the features are drawn with a style that makes them
larger/bigger, in GetMap that will have the effect of increasing the queried
area to catch the features that sit outside of it but whose symbolizer is big
enough to get into it, and for GetFeatureInfo, it represents the search area
Normally the buffer is computed automatically using a static analysis of the
style, but that won't work if the style has attribute dependencies of any kind
(stroke width stored in an attribute, dynamic symbolizers, etc).
For those cases a &buffer=xxx param should be specified, but not all clients
allow to setup that param in the request.
Allow the admin to specify a buffer hint on a per layer basis instead
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