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WMS and WFS require a NAME and PROJECTION to be defined – British National Grid is epsg:27700 (WGS84 is 4326).
A series of METADATA tags need to be defined in the . map file, together with WEB and LAYER levels to enable this functionality. As the WMS and WFS are both OGC web services the generic tags can often be substituted (i.e. wms_title can be used as ows_title). Each layer should have a CLASS that has a name.
See the entries in the Example WMS code below:
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MAP EXTENT 480000 149000 504600 169000 # Tile Cache FONTSET "D:/mapserver/shared/fonts/fonts.list" TEMPLATEPATTERN "." SYMBOLSET "D:/mapserver/shared/symbols/symbols.sym" SHAPEPATH "D:/Maps/Workshop/" SIZE 512 512 MAXSIZE 8192 STATUS ON UNITS METERS NAME "Astun Technology WorkShop" IMAGETYPE AGG_PNG OUTPUTFORMAT NAME "AGG_PNG" DRIVER "AGG/PNG" MIMETYPE "image/png" IMAGEMODE RGBA TRANSPARENT ON EXTENSION "png" END CONFIG "PROJ_LIB" "D:\mapserver\cgi-bin5.4\proj\nad" PROJECTION "init=epsg:27700" END WEB METADATA ows_title "Astun Technology Workshop WMS Server example" ows_enable_request "*" ows_srs "EPSG:27700" ## Recommended ows_abstract "This is an example WFS server from MapServer" END LOG "D:\mapserver\tmp\ms.log" END LAYER NAME "Wards" STATUS OFF TYPE POLYGON UNITS METERS DATA "Overlays/Council/Wards" METADATA ows_title "Ward boundaries" ows_abstract "Ward boundaries derived from OS OpenData" wms_extent "480000 149000 504600 169000" ## can use the map level extent values END TEMPLATE "blank.html" CLASS NAME "" STYLE OUTLINECOLOR 0 0 255 WIDTH 4 END END END END |
For a WFS Server there are some additional entries that are required e.g.
- gml_featureid - for the features to have a unique key
- gml_include_items – for which fields to return – this can be a comma separated list of field names or simply “all” as shown in Example WFS Code below.
- DUMP TRUE – ensures that the feature data is returned
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MAP
EXTENT 480000 149000 504600 169000 # Tile Cache
FONTSET "D:/mapserver/shared/fonts/fonts.list"
TEMPLATEPATTERN "."
SYMBOLSET "D:/mapserver/shared/symbols/symbols.sym"
SHAPEPATH "D:/Maps/Workshop/"
STATUS ON
UNITS METERS
CONFIG MS_ERRORFILE "D:/mapserver/tmp/debug.log"
NAME "Astun Technology WorkShop WFS example"
CONFIG "PROJ_LIB" "D:\mapserver\cgi-bin5.4\proj\nad"
PROJECTION
"init=epsg:27700"
END
WEB
METADATA
ows_title "Workshop WFS Server example"
ows_srs "EPSG:27700" ## Recommended
ows_abstract "This is an example WFS server from MapServer"
ows_enable_request "*"
END
IMAGEPATH "D:\mapserver\tmp\"
IMAGEURL ""
LOG "D:\mapserver\tmp\ms.log"
TEMPLATE "globexml.xml"
END
## Overlays Start Here ##
LAYER
NAME wards
STATUS ON
TYPE POLYGON
DATA "Overlays/Council/Wards"
METADATA
ows_title "Ward boundaries" ## REQUIRED
ows_abstract "Ward used in the workshop derived from OS OpenData"
gml_featureid "NUMBER" ## REQUIRED
gml_include_items "all" ## Optional (serves all attributes for layer)
END
DUMP TRUE #Required if using Mapserver 5.x or below
CLASS
END
END
END |
Client GIS Connection Examples
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