Test with polygon border decorations with native symbol in Mapserver

polygon_border_with_marker.map

MAP
#
#  Lars Schylberg - 2017-10-12
#  Test with polygon border decorations with native symbol in Mapserver
#
#  Run tests with: shp2img -m polygon_border_with_marker.map -o polygon_border_with_marker.png 
# 
  SIZE 800 500
  IMAGETYPE png24
  EXTENT -10 0 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 with fill
  STATUS DEFAULT
  TYPE POLYGON
  FEATURE
    POINTS
      5 25 25 20 45 20 35 15 50 0 0 5 5 25
    END # Points
  END # Feature

  CLASS  
        NAME "Polygon fill"
        STYLE
            COLOR 204 204 204
        END  #Style    
    END # Class
END # Layer
    
LAYER  # Same polygon, now with line decoration
  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 "Border decoration"
        STYLE
            SYMBOL "square_filled"
            COLOR 255 235 190
            SIZE 5
            INITIALGAP 10
            GAP -30
            OUTLINECOLOR 130 130 130 
            WIDTH 1.8
        END  #Style    
    END # Class
END # Layer

END # Map