Thanks, apologies. I knew I'd been looking at this for too long!
I'll take the other function out and try to solve one at a time ;-)
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I am trying to use the string function strLength as a filter, see below.
Is this possible? And where am I going wrong?
the SLD validates but on view I get the error message:
java.lang.RuntimeException: Unable to find function strReplace
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Motorway Simple Junction - 1:2,000 to