Priority labelling in geoserver

Question

Good day can i ask something about geoserver 2.2.1? I have my maps then i want to see the largest cities before the small cities but i don't have population instead i have my PLACE column its not a numbers its a text example

NAME                PLACE          ADDRESS
Ayusan Norte        Village        VIGAN
Barangay VIII       Village        VIGAN 

Then i want to create a big point to see all bigest cities How can i do that thanks..

God Bless !

Answer 1

I haven't tried, but you should be able to get what you want using the "Recode" function, turning your labels into numbers. Something like:

<Priority>
  <ogc:Function name="Recode">
     <ogc:PropertyName>PLACE</ogc:PropertyName>
     <ogc:Literal>Village</ogc:Literal>
     <ogc:Literal>10</ogc:Literal>
     <ogc:Literal>Town</ogc:Literal>
     <ogc:Literal>20</ogc:Literal>
     <ogc:Literal>City</ogc:Literal>
     <ogc:Literal>30</ogc:Literal>
     <ogc:Literal>Capital</ogc:Literal>
     <ogc:Literal>40</ogc:Literal>
  </ogc:Function>
</Priority>

See also examples in the documentation here: http://docs.geoserver.org/latest/en/user/styling/sld-tipstricks/transformation-func.html#transformation-func

Answer 2

I'm not sure that I completely understand your question. How do you differentiate a "big" city from a "small" city in your data?

The Geoserver SLD (styled layer descriptor) provides the means to apply styles based on attributes. The SLD cookbook has an example for that. This attributed doesn't have to be population. It could be a text field containing "big" or "small". Then you can use a filter to check for one of these properties.

If you can provide more detail about your data, then I or someone here could help you with setting up the SLD file.