Hi Andrea,
Thanks for the information.
Alas it doesn't appear to work with SLD 1.1. Is that a spec thing or a
implementation thing? (I tried a quick search in the specs, but "CDATA"
didn't find much of anything in either the 1.0 or 1.1 so I guess it's
defined in some other way).
If the later I'll investigate getting it sponsored as it'll improve our
labelling considerably. :-)
Many thanks,
Jonathan
On 29 April 2014 17:36, Andrea Aime <[email protected]> wrote:
> On Tue, Apr 29, 2014 at 6:19 PM, Jonathan Moules <
> [email protected]> wrote:
>
>> Hi List,
>> I'm wondering about using spaces (" ") in labels.
>>
>> I'm trying to form a label of two concatenated properties, with the
>> output looking like:
>>
>> *Property1 (Property2)*
>>
>>> <se:Label>
>>> <ogc:Function name="Concatenate">
>>> <ogc:PropertyName>NAME</ogc:PropertyName>
>>> <ogc:Literal> (</ogc:Literal>
>>> <ogc:PropertyName>ELEC_2020</ogc:PropertyName>
>>> <ogc:Literal>)</ogc:Literal>
>>> </ogc:Function>
>>> </se:Label>
>>
>>
>> But the output of that is:
>> *Property1(Property2)*
>>
>> Note the lack of space character before the "(". I tried using " ",
>> but that resulted in an exception.
>>
>> After more testing, I ended up at the extreme end:
>>
>>> <se:Label>
>>> <ogc:Function name="Concatenate">
>>> <ogc:PropertyName>NAME</ogc:PropertyName>
>>> <ogc:Literal> - - - - - (</ogc:Literal>
>>> <ogc:PropertyName>ELEC_2020</ogc:PropertyName>
>>> <ogc:Literal>)</ogc:Literal>
>>> </ogc:Function>
>>> </se:Label>
>>
>>
>> The output of which is:
>> *Property1*- - - - - *(Property2)*
>> Again, note the lack of space between Property1 and the first non-space
>> character.
>>
>> Is this meant to happen, am I doing something wrong, or is it a bug? I
>> know in HTML it will only ever show a single space character unless they're
>> declared explicitly with " " irrespective of how many are in the code,
>> but this seems to be left-trimming only.
>>
>
> Meant to happen, by SLD spec, we have to eat away the spaces.
> All you can do to preserve them is to wrap them in a CDATA section:
>
> <se:Label>
> <ogc:Function name="Concatenate">
> <ogc:PropertyName>NAME</ogc:PropertyName>
> <ogc:Literal><![CDATA[ (]]></ogc:Literal>
> <ogc:PropertyName>ELEC_2020</ogc:PropertyName>
> <ogc:Literal>)</ogc:Literal>
> </ogc:Function>
> </se:Label>
>
> The CDATA trick should work with SLD 1.0, with SLD 1.1, not sure
>
> Cheers
> Andrea
>
>
> --
> ==
> Meet us at GEO Business 2014! in London! Visit http://goo.gl/fES3aK
> for more information.
> ==
>
> Ing. Andrea Aime
> @geowolf
> Technical Lead
>
> GeoSolutions S.A.S.
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