[mapserver-users] mapserver 5.6 CGI output GeoJSON format

[Lime, Steve D (DNR)]

So the problem with the coordinates is they are truncated or ??? Not having the spec handy what would the correct output be? There are
several arguments to the shpxy tag that will probably be of help. For example you might add:

  [shpxy precision="6"]

Steve

-----Original Message-----
From: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Li Quansheng
Sent: Tuesday, April 17, 2012 11:18 AM
To: mapserver-users at lists.osgeo.org
Subject: [mapserver-users] mapserver 5.6 CGI output GeoJSON format

hi guys,
I installed FGS 5.6.3 on my VM to do some studying, these days I want to add WFS layer to my applyaction via openlayers, and I want to do some WFS query to output GeoJSON, I do my best, now,there is one problem I can't  figure out.
my mapfile: (mapserver 5.6)
....
 OUTPUTFORMAT
   NAME "geojson"
   DRIVER "TEMPLATE"
   MIMETYPE "application/json; subtype=geojson"
   FORMATOPTION "FILE=xj1JSON.tmpl"
 END
...
   METADATA
     'ows_title'           'XJ-MAP'   #OWS (OGC Web Services)
     'ows_onlineresource'
'http://192.168.207.100/cgi-bin/mapserv?map=/opt/fgs/www/htdocs/xj1/xj1.map'
     'ows_srs'             'EPSG:4326'
     'wms_tile'            'xjmap'
 'wms_onlineresource'
'http://192.168.207.100/cgi-bin/mapserv?map=/opt/fgs/www/htdocs/xj1/xj1.map'
 'wms_srs'    'EPSG:4326 EPSG:900913'
 "wfs_title"          "xjmap"
     "wfs_onlineresource"
"http://192.168.207.100/cgin-bin/mapserv?map=/opt/fgs/www/htdocs/xj1/xj1.map&"
     "wfs_srs"            "EPSG:4326 EPSG:900913" ## Recommended
     "wfs_abstract"       "xjmap WFS service." ## Recommended
     "wfs_enable_request" "*"  # necessary,"*" enables all requests
 "wfs_encoding"   "UTF-8"
   END
....
 LAYER
   NAME 'tielu'
   TYPE LINE
   DUMP true
   TEMPLATE fooOnlyForWMSGetFeatureInfo
 EXTENT 70.409351 33.963843 99.420299 49.549665 CONNECTIONTYPE postgis
       CONNECTION "host=localhost dbname=xj1 user=xxx password=xxx"
PROCESSING "CLOSE_CONNECTION=DEFER"
DATA "the_geom from tielu"
   METADATA
     'ows_title' 'tielu'
 "wfs_title"         "tielu" ##REQUIRED
     "wfs_srs"           "EPSG:4326" ## REQUIRED
 "wfs_featureid"     "gid"
 #"wfs_getfeature_formatlist" "geojson" # mapserver 6.0 support
     "gml_include_items" "all" ## Optional (serves all attributes for layer)
     "gml_featureid"     "gid" ## REQUIRED
     "wfs_enable_request" "*"
   END
   STATUS OFF
   TRANSPARENCY 100
   PROJECTION
   'proj=longlat'
   'datum=WGS84'
   'no_defs'
   END
   CLASS
      NAME 'tielu'
      STYLE
        WIDTH 0.91
        COLOR 164 229 51
      END
   END
 END
....
the GeoJson outputformat  template file xj1JSON.tmpl // mapserver template [resultset layer=tielu] {
 "type": "FeatureCollection",
 "features": [
   [feature limit=-1 feature trimlast=","]
   {
     "type": "Feature",
     "id": "[gid]",
     "geometry": {
       "type": "MultiLineString",
       "coordinates": [
"coordinates": [[[shpxy]]]
       ]
     },
     "properties": {
       "gid": "[gid]",
       "type": "[type]",
       "name": "[name]"
     }
   },
   [/feature]
 ]
}
[/resultset]

I want to output the "tielu" multiline layer , I can success execute the http request, http://192.168.207.100/cgi-bin/mapserv?map=/opt/fgs/www/htdocs/xj1/xj1.map&layer=tielu&mode=nquery&qformat=geojson
, It seemed that all the GeoJSON output is perfect except  the output coordinates of the colum the_geom.
the output is as flowings:
{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "id": "1",
      "geometry": {
        "type": "MultiLineString",
        "coordinates": [
			"coordinates": [[84,42 84,42 84,42 84,42 83,42 83,42 83,42 83,42
83,42 83,42]]   //there is sth wrong  here!
        ]
      },
      "properties": {
        "gid": "1",
        "type": "70",
        "name": "name111"
      }
    },
	....
	]
}
I think sth wrong in my template file about "coordinates":
[[[shpxy]]], I do many google searching,try my best to correct the file,I try
 "coordinates":  [[LONG], [LAT]] etc,
   , but I failed, Could anyone give me some advice, thank you very much!
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