[mapserver-users] Polygon border with marker line symbol

[lars.schylberg at blixtmail.se]

Hi,

I guess that your symbol definition of square says filled false,  it should be be filled true. Do another symbol.
Next thing is that if You would like to do fancy borders symbols along a polygon you could set LAYER - TYPE  to line.
The syntax becomes easier.  Last thing is to get the symbols to rotate with the line you should set gap to a negative value.

I made a small example to show this.  Save this to line-with-squares.map and run it with:
shp2img -m line-square-test.map -o line-square-test.png

/Lars S.
_________________

MAP
  SIZE 1000 1000
  IMAGETYPE png24
  EXTENT -30 -10 60 30
  UNITS DD

SYMBOL
    NAME "square_filled"
    TYPE VECTOR
    POINTS
        0 0 
        0 1
        1 1
        1 0
        0 0
    END
    FILLED TRUE
END

LAYER  # Simple polygon
  STATUS DEFAULT
  TYPE LINE
  FEATURE
    POINTS
      5 25
      25 20
      45 20
      35 15
      50 0
      0 5
      5 25
    END # Points
  END # Feature

  CLASS  
        NAME "Symboltest"
        STYLE
            SYMBOL "square_filled"
            COLOR 255 0 0 
            SIZE 12
            INITIALGAP 15
            GAP -30
            OUTLINECOLOR 0 0 0
            WIDTH 2.0
        END  #STYLE    
    END # CLASS
END # LAYER
END # MAP

---------------------------


-----Originalmeddelande-----
Från: "Anton Bakker" <anton.bakker at geocat.net>
Till: mapserver-users at lists.osgeo.org
Datum: 2017-10-11 17:45
Ämne: [mapserver-users] Polygon border with marker line symbol

Hi list,


I am trying to create the following symbology in MapServer, a marker line symbol on the border of a polygon, see the following ArcMap screenshot (https://i.imgur.com/9qN16tx.png). 


I tried the two following options, but could not manage to recreate the above symbology:


1. Renders with marker fill on polygon (https://i.imgur.com/sFFznbq.png):


CLASS
   NAME "countries_europe"
   STYLE
     ANTIALIAS TRUE
     COLOR 204 204 204
   END
   STYLE
     ANTIALIAS TRUE
     GAP 30
     OUTLINECOLOR 0 0 0
     COLOR 255 0 0 
     SIZE 6
     SYMBOL 'square'
     WIDTH 1.0
   END
 END


2. Renders with marker line symbol on polygon border (https://i.imgur.com/Qwrw8wP.png), but the marker is missing the fill:


CLASS
   NAME "countries_europe"
   STYLE
     ANTIALIAS TRUE
     COLOR 204 204 204
   END
   STYLE
     ANTIALIAS TRUE
     GAP 30
     OUTLINECOLOR 0 0 0
     SIZE 6
     SYMBOL 'square'
     WIDTH 1.0
   END
 END


Does anyone know whether it is possible to achieve this symbology? It seems the only way to set a picture line symbol on the border of a polygon is to only set the outlinecolor, but then there is no way to set the fill color for the marker. I could not find any any information about this in the documentation or the mailing list. 


Thanks and kind regards,
Anton Bakker


software developer at geocat 
tel. +31 318 416 664 




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