Oooh, I'll have to remember that trick (multiply by -1 to invert). Why yes
I barely scraped through maths at school ;-) .
That should do exactly what I want.
Thanks muchly!
Jonathan
On 25 June 2013 16:45, Andrea Aime <andrea.a...@geo-solutions.it> wrote:
> On Tue, Jun 25, 2013 at 5:23 PM, Jonathan Moules <
> jonathanmou...@warwickshire.gov.uk> wrote:
>
>> Hi List,
>> I have a property that contains orientation for a label, unfortunately
>> it's the wrong way (wouldn't it be nice if everyone just used the same
>> convention for orienting and anchoring?). So where my data has "90" it
>> should be pointing upward, but GeoServer points this downwards.
>>
>> Filter Functions should let me fix I think this but I'm coming unstuck -
>> I'm struggling to find examples to work from.
>>
>> Psuedocode:
>>
>> if PROPERTY > 0
>> - PROPERTY
>> else
>> + PROPERTY
>> endif
>>
>> basically I want to put a minus (-) in front of positives and a plus (+)
>> in front of negatives. How do I do this in an SLD?
>>
>
> Not sure it's going to move the arrow exactly where you'd like it, but try
> this:
>
> <ogc:Mul>
> <ogc:Literal>-1</ogc:Literal>
> <ogc:PropertyName>yourProperty</ogc:PropertyName>
> </ogc:Mul>
>
> Cheers
> Andrea
>
>
> --
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> @geowolf
> Technical Lead
>
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