[mapserver-users] Negative GAP parameter to rotate vector symbols along line
thomas bonfort
thomas.bonfort at gmail.com
Wed Mar 30 23:59:45 PDT 2011
It's supposed to work. If not, you might want to file a bugreport with
a screenshot of what you're getting, but in any case the GD driver in
the 5.x brach won't be getting much attention.
I'd highly suggest using AGG/PNG for any vector symbology rendering.
regards,
thomas
On Thu, Mar 31, 2011 at 08:53, Bartłomiej Burkot
<pomiarowiec10 at poczta.onet.pl> wrote:
> Any idea why it doesn't work?
>
>> Hi thomas
>>>
>>> what mapserver version?
>>> what outputformat/renderer?
>>
>> MapServer version 5.6.5
>>
>> OUTPUTFORMAT
>> NAME gif
>> DRIVER "GD/GIF"
>> MIMETYPE "image/gif"
>> IMAGEMODE PC256
>> EXTENSION "gif"
>> END
>>
>> Bartek
>>
>>> --
>>> thomas
>>>
>>> On Wed, Mar 30, 2011 at 15:10, Bartłomiej Burkot
>>> <pomiarowiec10 at poczta.onet.pl> wrote:
>>>>
>>>> Hi Users
>>>>
>>>> I would like to render a vector symbol along the line in a layer. This
>>>> vector symbol should be rotated according to orientation of linesegments
>>>> (for example a arrow along one way street). When I use negative GAP with
>>>> truetype symbol it work perfectly but I have probelms with vector
>>>> symbols to
>>>> rotate them.
>>>>
>>>> I use this definition of Symbol but it doesn't work:
>>>>
>>>> SYMBOL
>>>> NAME "testsymbol"
>>>> TYPE VECTOR
>>>> POINTS
>>>> 5 0
>>>> 2 1
>>>> 0 2.5
>>>> 2 4
>>>> 5 5
>>>> 5 5
>>>> 2 6
>>>> 0 7.5
>>>> 2 9
>>>> 5 10
>>>> END
>>>> STYLE 1 8 1 18 END
>>>> GAP -99 # doesn't work
>>>> END
>>>>
>>>> I read in docu http://mapserver.org/mapfile/symbol.html that:
>>>>
>>>> "When drawing the symbol along a line segment, a negative GAP will will
>>>> add
>>>> 180 degress to the angle. The TrueType and PixMap symbols are always
>>>> oriented along the line."
>>>>
>>>> My layer definiton is:
>>>>
>>>> LAYER
>>>> NAME testtest
>>>> STATUS on
>>>> TYPE line
>>>> TRANSFORM false
>>>> FEATURE
>>>> WKT "LINESTRING (0 0, 100 100, 0 100)"
>>>> END
>>>> CLASS
>>>>
>>>> STYLE
>>>> #ANGLE AUTO
>>>> SYMBOL "testsymbol"
>>>> COLOR 0 255 0
>>>> #SIZE 8
>>>> END
>>>> END
>>>> END
>>>>
>>>> Does vectorsymbol play with negative GAP parameter?
>>>> Bartek
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> mapserver-users mailing list
>>>> mapserver-users at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>>
>>>>
>>
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>
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