'env' filter function to retrieve external vars in SLD docs
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Key: GEOT-2881
URL: http://jira.codehaus.org/browse/GEOT-2881
Project: GeoTools
Issue Type: New Feature
Components: core styling
Reporter: Michael Bedward
Assignee: Andrea Aime
Attachments: env-function.patch
The attached patch is a first attempt at a new filter function that can be used
to get the value of external variables from within a SLD doc. It provides for
both thread-local and global look-ups.
>From Andrea: "Can we name it "enviroment", "env" or something like that? I
>would like to make the renderer aware of the function and stick into the
>enviroment some well known variables, such as the current scale denominator,
>the paint area, the current layer name and whatnot."
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