[mapserver-users] Fractional line widths?

[thomas bonfort]

Sorry for not hopping into the thread earlier, blame holidays :)

For the time being, you can achieve similar output with mapserver 5.2,
by using the OPACITY keyword at the style level

STYLE
 COLOR r g b
 OPACITY 50  # essentially the same as WIDTH 0.5
 WIDTH 1
END

cheers,
thomas

On Tue, Aug 19, 2008 at 4:28 PM, Dane Springmeyer <blake at hailmail.net> wrote:
> 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
>>>
>>>
>>>
>>> _______________________________________________
>>>
>>> mapserver-users mailing list
>>>
>>> mapserver-users at lists.osgeo.org
>>>
>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>
>>>
>>>
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