[MS4W-Users] dynamic line pattern

[Robert Sanson]

Why not use CLASSITEM and CLASS with an EXPRESSION for each possible value? See this layer from a mapfile:

LAYER
  NAME elines
  GROUP "FMS"
  TYPE LINE
  STATUS ON
  CONNECTION "./elines.ovf"
  CONNECTIONTYPE OGR
  DATA "elines"
  FILTER "WHERE farm_id = '%farmid%' and spatial_feature_type = 3 and end_date is null"
  VALIDATION
   'farmid'         '^[A-Z]{2}[0-9]{5}$'
  END
  CLASSITEM "sub_area_code"
  CLASS
    NAME "AWDS"
    EXPRESSION "AWDS"
    STYLE
      PATTERN 5.0 5.0 END
      WIDTH 4
      COLOR 52 207 173
    END
  END #CLASS
  CLASS
    NAME "AWFE"
    EXPRESSION "AWFE"
    STYLE
      WIDTH 4
      COLOR 207 52 86
    END
  END #CLASS
  CLASS
    NAME "AWPT"
    EXPRESSION "AWPT"
    STYLE
      PATTERN 6.0 7.0 END
      WIDTH 4
      COLOR 207 52 86
    END
  END #CLASS
  CLASS
    NAME "AWUN"
    EXPRESSION "AWUN"
    STYLE
      PATTERN 0.5 7.0 END
      WIDTH 4
      COLOR 207 52 86
    END
  END #CLASS
  CLASS
    NAME "BELT"
    EXPRESSION "BELT"
    STYLE
      WIDTH 6
      COLOR 33 145 0
    END
  END #CLASS
  CLASS
    NAME "CNAL"
    EXPRESSION "CNAL"
    STYLE
      WIDTH 4
      COLOR 192 154 31
    END
  END #CLASS
  CLASS
    NAME "DRIN"
    EXPRESSION "DRIN"
    STYLE
      PATTERN 7.0 1.0 END
      WIDTH 4
      COLOR 255 163 0
    END
  END #CLASS
  CLASS
    NAME "PIPE"
    EXPRESSION "PIPE"
    STYLE
      PATTERN 7.0 1.0 END
      WIDTH 4
      COLOR 255 163 0
    END
  END #CLASS
  CLASS
    NAME "RIPA"
    EXPRESSION "RIPA"
    STYLE
      WIDTH 4
      COLOR 122 65 0
    END
  END #CLASS
  CLASS
    NAME "RPPL"
    EXPRESSION "RPPL"
    STYLE
      PATTERN 0.5 7.0 END
      WIDTH 4
      COLOR 122 65 0
    END
  END #CLASS
  CLASS
    NAME "ROFE"
    EXPRESSION "ROFE"
    STYLE
      WIDTH 3
      COLOR 163 207 67
    END
  END #CLASS
  CLASS
    NAME "ROPT"
    EXPRESSION "ROPT"
    STYLE
      PATTERN 5.0 7.0 END
      WIDTH 3
      COLOR 163 207 67
    END
  END #CLASS
  CLASS
    NAME "ROUN"
    EXPRESSION "ROUN"
    STYLE
      PATTERN 0.2 6.0 END
      WIDTH 3
      COLOR 163 207 67
    END
  END #CLASS
  CLASS
    NAME "SWTL"
    EXPRESSION "SWTL"
    STYLE
      WIDTH 4
      COLOR 158 0 242
    END
  END #CLASS
  CLASS
    NAME "WRDR"
    EXPRESSION "WRDR"
    STYLE
      #PATTERN 4.0 4.0 END
      WIDTH 3
      COLOR 0 0 255
    END
  END #CLASS
  CLASS
    NAME "WRNF"
    EXPRESSION "WRNF"
    STYLE
      PATTERN 0.3 6.0 END
      WIDTH 3
      COLOR 255 153 0
    END
  END #CLASS
  METADATA
   "ows_title"    "elines"
   "ows_abstract"    "This is the Environmental Lines layer in NZTM"
   "ows_keywordlist"    "AGRIBASE"
   "wms_opaque"    "1"
   "wms_group_title" "FMS"
   "ows_extent" "1114412.940 4793178.168 2089186.204 6190213.601"
  END
 END #elines

-----Original Message-----
From: MS4W-Users <ms4w-users-bounces at lists.ms4w.com> On Behalf Of Brent Fraser via MS4W-Users
Sent: Thursday, 28 March 2019 9:23 a.m.
To: MS4W-Users at lists.ms4w.com
Cc: Brent Fraser <bfraser at GeoAnalytic.com>
Subject: Re: [MS4W-Users] dynamic line pattern

Sven,
  
   My old notes on styling:
  
      ------ Mapserver Styling Strategies ------ 1. Values hard-coded in mapfile 2. Values substituted from database attribute values (AKA "attribute
binding")
    - not all values can use [attribute] as a value, eg PATTERN 3. Entire Style from attribute using STYLEITEM:
    STYLEITEM "mystyleattribute" #  Mapserver or OGR format
    STYLEITEM AUTO  # OGR driver only (useful for DXF,DWG, format data
etc)
    - since STYLEITEM is a LAYER object, are multiple classes possible?
4. Entire STYLE block from Javascript (STYLEITEM "javascript:///home/user/myscript.js" # absolute path) 5. Style from SLD [URL] reference
(&SLD=http://demo.mapserver.org/ogc-demos/map/sld/sld_line_simple.xml)
  
 You could try #3 (I've never done it but it could work): STYLEITEM <attribute>

 Have a look at teh STYLEITEM at  https://mapserver.org/mapfile/layer.html
  
 Best Regards,
 Brent Fraser
  
  
 -------- Original Message --------
> From: "Sven Schroeter via MS4W-Users" <ms4w-users at lists.ms4w.com>
> Sent: Wednesday, March 27, 2019 10:57 AM
> To: MS4W-Users at lists.ms4w.com
> Cc: "Sven Schroeter" <schroeter at netgis.de>
> Subject: [MS4W-Users] dynamic line pattern
>
> Hi,
>
> I have a line Layer and want to change the pattern dynamicly from the 
> attribute table.
> Is it possible?
>
>
> e.g. I have this working:
>
>     CLASS
>      NAME "buslines"
>         STYLE
>             COLOR [linecolor]
>             WIDTH 4
>             PATTERN 40 10 END
>         END
>      END  # CLASS
>
>
> and I want to get the pattern from an attribute:
>
>
>     CLASS
>      NAME "buslines"
>         STYLE
>             COLOR [linecolor]
>             WIDTH 4
>             PATTERN [pattern] END
>         END
>      END  # CLASS
>
> but this dont work. Any hint?
>
> Thanks
> Sven
>
> _______________________________________________
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> MS4W-Users at lists.ms4w.com
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