[mapserver-dev] labeling weirdness in trunk

[Yewondwossen Assefa]

Hi,

 There was change made as part re. angle setting for text symbolizers 
(http://trac.osgeo.org/mapserver/ticket/2806). This was done before the 
5.4 release. The default setting for angles is AUTO for texts used with 
line features. It is also possible to set the angle to 0 and FOLLOW 
depending on the parameters used in the test symbolizer (see not on it 
it  http://mapserver.org/ogc/sld.html). Note that SLD 1.1 introduces the 
IsAligned parameter which specifically deal with this issue and if it is 
set to false, the angle would be set to 0.

regards,

bartvde at osgis.nl wrote:
> Hi Alan,
>
> yes I would expect something like the 52 result.
>
> I am using an SLD TextSymbolizer, there is no LABEL definition in my MAP
> file at all:
>
> <sld:StyledLayerDescriptor xmlns:sld="http://www.opengis.net/sld"
> version="1.0.0" xsi:schemaLocation="http://www.opengis.net/sld
> http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:ogc="http://www.opengis.net/ogc"
> xmlns:gml="http://www.opengis.net/gml"><sld:NamedLayer><sld:Name>AAA64</sld:Name><sld:UserStyle><sld:Name>default</sld:Name><sld:FeatureTypeStyle><sld:Rule><sld:Name>default</sld:Name><sld:TextSymbolizer><sld:Label><ogc:PropertyName
> xmlns:ogc="http://www.opengis.net/ogc">xxx</ogc:PropertyName></sld:Label><sld:Font><sld:CssParameter
> name="font-family">Arial</sld:CssParameter><sld:CssParameter
> name="font-size">10</sld:CssParameter></sld:Font><sld:Fill><sld:CssParameter
> name="fill">#000000</sld:CssParameter></sld:Fill></sld:TextSymbolizer></sld:Rule></sld:FeatureTypeStyle></sld:UserStyle></sld:NamedLayer></sld:StyledLayerDescriptor>
>
> Best regards,
> Bart
>
>   
>> Is the mapserv-52.png image supposed to be the expected result ? What's
>> you
>> ANGLE setting for those labels ?
>>
>> Alan
>>
>> On December 11, 2009 09:25:55 am bartvde at osgis.nl wrote:
>>     
>>> Hi Steve,
>>>
>>> attached the trunk situation with lines (roads in green). In
>>> labeling.jpg.
>>>
>>> Btw, the change from 5.2 is also very strange, why are the labels not
>>> straight anymore but using an angle? I am using an SLD TextSymbolizer.
>>> Also the font size seems to have changed somehow from 5.2.
>>>
>>> Best regards,
>>> Bart
>>>
>>>       
>>>> I don't think there have been changes in the labeling code. The
>>>>         
>>> placement
>>>       
>>>> seems identical otherwise. I
>>>> can't tell where the North Sea is, but I'm assuming the N207 and N677
>>>> labels are in it. Since those don't
>>>> show up at all in the 5.6 image where are they supposed to be? Would
>>>>         
>>> be
>>>       
>>>> helpful to see the line work the
>>>> labeling is based upon in the images.
>>>>
>>>> Steve
>>>> ________________________________________
>>>> From: mapserver-dev-bounces at lists.osgeo.org
>>>> [mapserver-dev-bounces at lists.osgeo.org] On Behalf Of bartvde at osgis.nl
>>>> [bartvde at osgis.nl]
>>>> Sent: Friday, December 11, 2009 3:17 AM
>>>> To: mapserver-dev at lists.osgeo.org
>>>> Subject: [mapserver-dev] labeling weirdness in trunk
>>>>
>>>> Hi list,
>>>>
>>>> we are experiencing some labeling weirdness (labels of roads in the
>>>>         
>>> North
>>>       
>>>> Sea :-) ) in trunk compared to the 5.6 release.
>>>>
>>>> Any idea what is causing this?
>>>>
>>>> Best regards,
>>>> Bart
>>>>         
>> --
>> Alan Boudreault
>> Mapgears
>> http://www.mapgears.com
>>
>>     
>
>
> _______________________________________________
> mapserver-dev mailing list
> mapserver-dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-dev
>
>   


-- 
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Assefa Yewondwossen           
Software Analyst   

Email: assefa at dmsolutions.ca    
http://www.dmsolutions.ca/

Phone: (613) 565-5056 (ext 14)
Fax:   (613) 565-0925
----------------------------------------------------------------