[mapserver-users] vector Symbol and anchorpoint

thomas bonfort thomas.bonfort at gmail.com
Sun Aug 11 05:15:16 PDT 2013


As you're not showing what you would like to obtain, nor the mapfile
you are using to generate those images it is difficult to be of much
help. I have added a test in
https://github.com/mapserver/msautotest/commit/89d59a49586dc3192dfd2f67bd1a751f0900e36f
that mimics what I guess you would like to obtain, and for me shows
that anchorpoint seems to be working as expected.

--
thomas

On 11 August 2013 13:07, Andrea Peri <aperi2007 at gmail.com> wrote:
> Hi,
> thx for response.
>
> I try to set this symbol:
>
>
>   SYMBOL
>     NAME "test"
>     TYPE vector
>     FILLED TRUE
>     POINTS
>        0.0 0.0
>        1.0 0.0
>        0.5 0.0
>        0.5 0.5
>
>     END
>     ANCHORPOINT 0.0 0.0
>   END
>
> But mapserver seem move the line by 0.5.
>
> I show in the attached image (img1) the problem.
> The filled green is the real polygon.
> Instead the red is the symbol I try to define with "test".
> As you can see the red line is not in the exact outline but 0.5 moved.
>
> I notice also that if I define this other kind of symbol:
>
>   SYMBOL
>     NAME "chiodo"
>
>     TYPE vector
>     FILLED TRUE
>     POINTS
>        0.0 0.0
>        1.0 0.0
>        0.5 0.0
> #       0.5 0.5
>
>     END
>     ANCHORPOINT 0.0 0.0
>   END
>
> Where I  comment the perpendicul segment,
> the result is a red line exactly on the outline.
> I show this in the img2 attacched.
>
> So mapserver seem move the symbol when there is a perpendicular segment.
>
> Is this a bug or I don't understand how work the symbols ?
>
> Thx,
>
> Andrea.
>
>
>
> 2013/8/11 thomas bonfort <thomas.bonfort at gmail.com>
>>
>> try defining the points of your vector symbol such that min(x)=min(y)=0
>>
>> On 11 August 2013 10:30, Andrea Peri <aperi2007 at gmail.com> wrote:
>> > Hi,
>> >
>> > I'm having trouble try.ing use the anchorpoint with a vector symbol.
>> >
>> > Is this working with vectors ?
>> >
>> > This is what I'm try to do:
>> >
>> >   SYMBOL
>> >     NAME "test"
>> >     TYPE vector
>> >     FILLED TRUE
>> >     POINTS
>> >        0.5 1.0
>> >        0.5 0.75
>> >        0.0 0.75
>> >        1.0 0.75
>> >     END
>> >     ANCHORPOINT 0.0 0.0
>> >   END
>> >
>> > The anchorpoint seem always set to the 0.5 0.5 position.
>> >
>> > I'm use the trunk version of mapserver.
>> >
>> >
>> >
>> > --
>> > -----------------
>> > Andrea Peri
>> > . . . . . . . . .
>> > qwerty àèìòù
>> > -----------------
>> >
>> > _______________________________________________
>> > mapserver-users mailing list
>> > mapserver-users at lists.osgeo.org
>> > http://lists.osgeo.org/mailman/listinfo/mapserver-users
>> >
>
>
>
>
> --
> -----------------
> Andrea Peri
> . . . . . . . . .
> qwerty àèìòù
> -----------------



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