> But it seems this paramter is left out in DuplicatingStyleSymbolizer,
> SLDParser.parseLineSymbolizer and SLDTransformer.
>
> Is this a bug?
Yes it would be; the parameters is relatively new and open source acts as a
crowd sourced QA technique :)
Please report the issue in our issue tracker (preferably with a patch?) or we
will forget again.
> Is this supported in the renderer?
Not sure; it was waiting for some functionality to be added to JTS (basically
the ability to do 1/2 of a buffer operation). As far as know that work from JTS
is now available. So I am not sure the final hook up has been done; or if it is
just waiting for funding or volunteer.
> If both answers are yes, i could write a patch for the three classes above. I
> could not however add support for PerpendicularOffset for LIneSymbolizer to
> the renderer.
Patch would be great! And I bet you *could* write support for the offset. We
have the concept of a process to transform a geometry prior to display; and it
is a "simple" JTS method ... and there is a tutorial about how to write a
process
(http://docs.geotools.org/latest/userguide/tutorial/advanced/process.html).
This would allow you to experiment with the idea and we could use what you
learn to direct a change to the renderer.
Jody
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