[mapserver-users] Fractional line widths?

[Dane Springmeyer]

Fantastic, thanks for the feedback everyone.

Dane


On Aug 19, 2008, at 5:39 AM, Steve Lime wrote:

> We've talked about this as part of a package of graphics-related  
> enhancements. Look for
> it in 5.4 soon.
>
> Steve
>
>>>> "Tamas Szekeres" <szekerest at gmail.com> 08/18/08 7:06 PM >>>
> Dane,
>
> I think it would be implemented by means of replacing the int-s with
> doubles at the style and the symbol definitions and the corresponding
> interfaces since AGG have already been using doubles internally in the
> code.
>
>
> Best regards,
>
> Tamas
>
>
> 2008/8/19 Dane Springmeyer <blake at hailmail.net>:
>> 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
>>
>>
>>
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>>
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>>
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>>
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>>
>>
>>
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