[mapserver-dev] Thoughts on ANGLE FOLLOW results

[Brent Fraser]

FY, Alexander Wolff (http://i11www.iti.uni-karlsruhe.de/~awolff/) has some info 
on his Projects and Bibliography pages.

Best Regards,
Brent Fraser

Alan Boudreault wrote:
> IIRC, the label placement code had been written by someone that it not 
> reliable anymore. In a few parts... nobody really knew what the code was 
> doing. Should we rethink/rewrite the label placement code rather than trying 
> to patch it with some letterspacing hack or something similar, like I tried in 
> the past? 
> 
> Alan
> 
> On August 16, 2010 10:26:50 am Lime, Steve D (DNR) wrote:
>> Correct. It's as good as you're gonna do with the code as it sits. Looks
>>  like GeoServer punts in the case when chars overlap. It's been a bug for
>>  some time now and really needs to be fixed, even if that fix is simply to
>>  detect overlap and punt...
>>
>> -Steve
>>
>> -----Original Message-----
>> From: mapserver-dev-bounces at lists.osgeo.org
>>  [mailto:mapserver-dev-bounces at lists.osgeo.org] On Behalf Of Brent Fraser
>>  Sent: Monday, August 16, 2010 8:59 AM
>> To: Jeff McKenna
>> Cc: 'MapServer Dev Mailing List'
>> Subject: Re: [mapserver-dev] Thoughts on ANGLE FOLLOW results
>>
>> Jeff,
>>
>>    I think the problem is related to
>>       http://trac.osgeo.org/mapserver/ticket/2221
>> (and http://trac.osgeo.org/mapserver/ticket/2612)
>>
>> Best Regards,
>> Brent Fraser
>>
>> Jeff McKenna wrote:
>>> For the FOSS4G WMS Benchmarking exercise we have to label a contour line
>>> layer, curved along the lines.  I am comparing MapServer's results with
>>> GeoServer (attached). I am trying to tweak the LABEL object parameters,
>>> but I am still not happy with the MapServer results.
>>>
>>> Should I be satisfied with these results?  Or is this is bug in our
>>> MapServer label logic?  Please give me your thoughts. (notice the
>>> mangled '730' label in the middle, and the upside down '550' in the
>>> bottom right)
>>>
>>>        LABEL
>>>          COLOR  230 183 119
>>>          FONT sans
>>>          TYPE truetype
>>>          SIZE 12
>>>          PARTIALS FALSE
>>>          OUTLINECOLOR 255 255 255
>>>          OUTLINEWIDTH 5
>>>          ANGLE FOLLOW
>>>          MINFEATURESIZE AUTO
>>>          BUFFER 3
>>>        END
>>>
>>> geoserver:
>>> http://12.189.158.78:8080/geoserver/wms?EXCEPTIONS=application%2Fvnd.ogc.
>>> se_inimage&LAYERS=shp_alllayers_label&STYLES=&FORMAT=image%2Fpng&SERVICE=W
>>> MS&VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG%3A4326&BBOX=2.0887561798092,41.69
>>> 3440914151,2.1016307830806,41.706315517423&WIDTH=600&HEIGHT=600
>>>
>>>
>>> mapserver:
>>> http://12.189.158.78:8081/cgi-bin/mapserv_label?MAP=/benchmarking/mapserv
>>> er/spain-shapefiles.map&LAYERS=vector_benchmarking_2010&FORMAT=image%2Fpng
>>> &SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2
>>> Fvnd.ogc.se_inimage&SRS=EPSG%3A4326&BBOX=2.0887561798092,41.693440914151,2
>>> .1016307830806,41.706315517423&WIDTH=600&HEIGHT=600
>>>
>>>
>>> -jeff
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>