[mapserver-users] Polygon border with marker line symbol

[Anton Bakker]

Hi Lars,

On second thought setting the TYPE to LINE does not fit my usecase exactly. I would like to achieve the following for a polygon layer: https://i.imgur.com/3stwHw4.png <https://i.imgur.com/3stwHw4.png> . So the two requirements for the symbology are:
- Marker line symbol on border
- Polygon fill

With setting the type to line I can only achieve the marker line symbol, but I cannot specify a fill: https://i.imgur.com/tk6vJ4b.png <https://i.imgur.com/tk6vJ4b.png> . Do you know if there is a way of achieving this effect? 

I guess it maybe could be done by grouping two layers, together and treating them as one, but preferably the solution is restricted to one layer. 

Cheers,
Anton


> On 12 Oct 2017, at 10:22, Anton Bakker <anton.bakker at geocat.net> wrote:
> 
> Hi Lars,
> 
> The fill of the square was set to true, but I guess that is what happens when you only set the OUTLINECOLOR and a SYMBOL on a polygon type style. 
> 
> In any case setting the type of the polygon layer to LINE did the trick. I was not aware this was possible, but it does make sense. Thanks for the quick answer!
> 
> Kind regards,
> Anton 
> 
>> On 11 Oct 2017, at 18:50, lars.schylberg at blixtmail.se <mailto:lars.schylberg at blixtmail.se> wrote:
>> 
>> 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 <mailto:anton.bakker at geocat.net>>
>> Till: mapserver-users at lists.osgeo.org <mailto: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 <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 <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 <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 <http://www.geocat.net/> 
>> tel. +31 318 416 664 
>> 
>> 
>> 
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>> 
>> 
>> --
>> 
>>  
> 

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