[mapserver-users] Fractional line widths?

[Dane Springmeyer]

Tamas,

Great, thanks!. I'll file a ticket then regarding the agg render and  
adding a FORMATOPTION for generating 'thinner' looking lines.

My question comes from the context of comparing Mapnik's agg output to  
mapserver. Mapnik seems to interpret user-entered fractional widths in  
a clever way, by lightening the color and intensity.

I'm comparing this graphic generated with a width=0.1 with Mapnik:

http://mapnik-utils.googlecode.com/svn/trunk/tutorials/hello_world/xml_config/map/hello_world_using_xml_config.png

to this graphic generated with Mapserver with Width 1.0:

http://mapnik-utils.googlecode.com/svn/trunk/tutorials/hello_world/mapserver_comparison/mapfile_config/map/hello_world_with_mapserver_mapfile.png

It fully possible that my mapfile is not doing an equal comparison, so  
if anyone has suggestions I've pasted it below.


Thanks,

Dane

------------


# This mapfile mirrors the mapnik hello world example here: http://mapnik-utils.googlecode.com/svn/trunk/tutorials/hello_world/pure_python/
# A map can be generated from it by running shp2img.
# For example:
# $ shp2img -m world.map -o map/hello_world_with_mapserver_mapfile.png
# or
# once you have installed the mapserv cgi use this url:
# http://localhost/cgi-bin/mapserv?map=/path/to/this/mapfile/world.map&layers=world&mode=map

MAP
   IMAGETYPE        AGG
   EXTENT             -180 -93 180 86
   SIZE                   600 300
   SHAPEPATH       "../../data/"
   IMAGECOLOR     70 130 180

   OUTPUTFORMAT
    NAME 'AGG'
    DRIVER AGG/PNG
    IMAGEMODE RGB
    MIMETYPE "image/png"
   END

   LAYER
     NAME         world
     DATA         world_borders.shp
     STATUS      ON
     TYPE          POLYGON

     CLASS
       NAME       "World"
       STYLE
         COLOR                 242 239 249
         OUTLINECOLOR   127 127 127
         WIDTH 1
       END

     END
   END
END



On Aug 18, 2008, at 3:53 PM, Tamas Szekeres wrote:

> Dane,
>
> I think it's reasonable but would only be feasible for the AGG  
> renderer though.
>
>
> Best regards,
>
> Tamas
>
>
>
> 2008/8/19 Dane Springmeyer <blake at hailmail.net>:
>> I can see from http://mapserver.gis.umn.edu/docs/reference/mapfile/style
>> that only integers are supported for the Style > Width parameter.
>>
>> Are thinner lines (a float type) a possibility or have they been  
>> considered
>> in the MapServer code base?
>>
>> I can't find anything in trac to suggest so, but I thought to check  
>> here
>> before filing a ticket.
>>
>> Thanks,
>>
>> Dane
>>
>>
>>
>> _______________________________________________
>> mapserver-users mailing list
>> mapserver-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>

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