[mapserver-users] using MINSIZE and MAXSIZE with ANCHORPOINT

[Richard Greenwood]

Hello Havard,

Thank you so much for taking the time to create such a great example. It
helped me find my problem. I was missing SIZE. When I specified MINSIZE and
MAXSIZE I had left out SIZE.

I would not have found my mistake without your help, so thank you very much.

Best regards,
Rich


On Thu, Oct 6, 2016 at 6:08 AM, Havard Tveite <havard.tveite at nmbu.no> wrote:

> Hi,
>
> I can't see any mistakes.
>
> I tried to test this on with 6.4.2 and 7.0.1 (sorry I have not
> installed 7.0.2 yet), and am not able to reproduce the behaviour
> that you describe.  ANCHORPOINT seems to work as expected.
> Which Mapserver version are you using?
>
> I have run it using shp2img -m
>
> I attach the resulting images (the last number in the file name
> reflects the symbolscaledenominator that has been used).
>
> Here is my complete mapfile:
>
> MAP
>   SIZE 100 100
>   EXTENT 0 0 100 100
>   SYMBOL
>     NAME "arrowv"
>     TYPE vector
>     ANCHORPOINT 0.5 1
>     POINTS
>       0 2
>       1 0
>       2 2
>       -99 -99
>       1 0
>       1 3
>     END
>   END
>   SYMBOL
>     NAME "circle"
>     TYPE ellipse
>     POINTS
>       1 1
>     END
>     FILLED TRUE
>   END
>   LAYER
>     NAME "arrows"
>     TYPE POINT
>     STATUS DEFAULT
>     PROCESSING "Items=angle"
>     #SYMBOLSCALEDENOM 20000
>     #SYMBOLSCALEDENOM 10000
>     SYMBOLSCALEDENOM 4000
>     FEATURE
>       POINTS
>         50 20
>       END # Points
>       ITEMS "90"
>     END # Feature
>     FEATURE
>       POINTS
>         10 90
>       END # Points
>       ITEMS "-135"
>     END # Feature
>     CLASS
>       NAME "vector"
>       STYLE
>         SYMBOL "arrowv"
>         MINSIZE 5
>         SIZE 10
>         MAXSIZE 40
>         MINWIDTH 1
>         MAXWIDTH 1
>         COLOR 0 0 255
>         ANGLE [angle]
>       END # STYLE
>       STYLE
>         SYMBOL "circle"
>         COLOR 255 0 0
>         MINSIZE 3
>         SIZE 3
>         MAXSIZE 3
>       END # STYLE
>     END #class
>   END #layer
> END # Map file
>
>
> On 23. sep. 2016 19:20, Richard Greenwood wrote:
>
>> It seems like my symbol's ANCHORPOINT is not being scaled when my style
>> definition uses MINSIZE, MAXSIZE and MAXSCALEDENOM.
>>
>> Here's my symbol definition:
>>
>> SYMBOL
>>   NAME "arrowv"
>>   TYPE vector
>>   ANCHORPOINT 0.5 1
>>   POINTS
>>     0 2
>>     1 0
>>     2 2
>>     -99 -99
>>     1 0
>>     1 3
>>   END
>> END
>>
>> and my style definition:
>>
>>     STYLE
>>       SYMBOL "arrowv"
>>       SIZE 40
>>       COLOR 0 0 255
>>       ANGLE [angle]
>>     END
>>
>> Which produces what I want:
>>
>> (​The red dot is the map x, y insertion point)
>> but when I add SYMBOLSCALEDENOM and change my symbol definition to:
>>
>>     STYLE
>>       SYMBOL "arrowv"
>>       MINSIZE 15
>>       MAXSIZE 40
>>       COLOR 0 0 255
>>       MINWIDTH 1
>>       MAXWIDTH 1
>>       ANGLE [angle]
>>     END
>>
>> I get:
>>
>> The ANCHORPOINT is not scaled along with the symbol. A little hard to
>> see in these two, but the ANCHORPOINT is being used, just not scaled:
>>
>> ANCHORPOINT 0 0
>>
>> ANCHORPOINT 1 1
>>
>> ​
>> ​Am I doing something wrong?
>>
>> Thanks,
>> Rich
>>
>> --
>> Richard W. Greenwood, PLS
>> www.greenwoodmap.com <http://www.greenwoodmap.com>
>>
>>
>> _______________________________________________
>> mapserver-users mailing list
>> mapserver-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>
>>
> --
> Håvard Tveite
> Department of Mathematical Sciences and Technology, NMBU
> Drøbakveien 31, POBox 5003, N-1432 Ås, NORWAY
> Phone: +47 67231548 Fax: +47 64965401 http://www.nmbu.no/imt/
>
> _______________________________________________
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> mapserver-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>



-- 
Richard W. Greenwood, PLS
www.greenwoodmap.com
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