[mapserver-users] SLD with TextSymbolizer

[Michael Schulz]

Hi,

actually, I think the sld specs say that the label property can be of
mixed content and thus should e.g. allow for static text and variable
property values. So if you want to have a static text "V" id should
suffice to put that as it is in the label-tag. Values that have
variable content obtained from a DB-field should be enclosed with
<ogc:PropertyValue>. An example from the ogc spec:

<Label>This is city "<ogc:PropertyName>NAME</ogc:PropertyName>"
of state <ogc:PropertyName>STATE</ogc:PropertyName></Label>

I had these problems too with older mapserver versions (< 5.x), but
thought that recent versions handle this correctly. Especially the
case of the example should work. Can you try that, i.e. have a static
text mixed with a ogc:PropertyValue?

Cheers, Michael


2009/9/15 Guillaume Sueur <no-reply at neogeo-online.net>:
>
> Hi Daniel,
>
> Label is supposed to enclise the name of a field. Here is a complete
> working example of text symbolizer :
> <TextSymbolizer>
>        <Label>id_field</Label>
>        <LabelPlacement>
>                <PointPlacement>
>                        <Displacement>
>                                <DisplacementX/>
>                                <DisplacementY>5</DisplacementY>
>                        </Displacement>
>                </PointPlacement>
>        </LabelPlacement>
>        <Font>
>                <CssParameter name="font-family">VERDANA</CssParameter>
>                <CssParameter name="font-style">bold</CssParameter>
>                <CssParameter name="font-size">16</CssParameter>
>        </Font>
>        <Fill>
>                <CssParameter name="fill">#000000</CssParameter>
>        </Fill>
>        <Halo>
>                <Radius>3</Radius>
>                <Fill><CssParameter name="fill">#FFFFFF</CssParameter></Fill>
>        </Halo>
> </TextSymbolizer>
>
> Hope that helps
>
> Guillaume
>
>
> Daniel Degasperi a écrit :
>> Hi,
>>
>> I've some problems using the TextSymbolizer in my SLD-File (see
>> Attachment route_sld.xml), specially with the following part, which will
>> generate this error: column Literal does not exists. (see Attachment
>> wms_error.png for further details)
>>
>> <ogc:Label><ogc:Literal>V</ogc:Literal></ogc:Label>
>>
>> Is this problem related to MapServer or MapServer does not support
>> SLD-Labels?
>>
>> I've tested this with MapServer 5.2.2 and 5.4.2.
>>
>> Best regards,
>> Daniel Degasperi
>>
>>
>>
>> ------------------------------------------------------------------------
>>
>>
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>>
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