I am wrestling with a similar problem. I am trying to read in data
coming from an ArcGIS Server in JSON format. Unfortunately, ArcGIS
Server doesn't serve GeoJSON. Here is a sample of what the data looks
like:
{
"results" : [
{
"layerId" : 0,
"layerName" : "Main_Gates",
"displayFieldName" : "road_name",
"foundFieldName" : "farm_id",
"value" : "AS00136",
"attributes" : {
"point_location_id" : "232495",
"farm_id" : "AS00136",
"rapid_no" : "104",
"road_name" : "Winslow Willowby Rd",
"locality" : "Null",
"x_nztm" : "1492934.61",
"y_nztm" : "5131545.29",
"Shape" : "Point"
},
"geometryType" : "esriGeometryPoint",
"geometry" :
{
"x" : 1492934.61,
"y" : 5131545.29,
"spatialReference" : {
"wkid" : 2193
}
}
}
]
}
Any ideas how to get OL to read this into a Vector layer?
Thanks,
Robert
>>> "Arnd Wippermann" <arnd.wipperm...@web.de> 7/03/2010 10:43 a.m.
>>>
Hi,
i would think, that you have to use geojson instead of json, to get the
geometry for the features.
Arnd
Von: users-boun...@openlayers.org [mailto:users-boun...@openlayers.org]
Im Auftrag von Hugo
Gesendet: Samstag, 6. März 2010 19:14
An: openlayers
Betreff: [OpenLayers-Users] Make vector layer from JSON
Hello all,
I'm trying to create a vector layer based on a php query (which
includes the_geom) encoded in JSON. Until the moment i haven't been able
to achieve this.
Following, is the relevant part of the code:
var connect = new Ext.data.Connection();
connect.request({
url: 'mfbase/geoquery.php',
params: {
species: species,
datai: datai,
dataf: dataf
},
success: function(response){
var resp = response.responseText;
var json = new OpenLayers.Format.JSON();
var data = json.read(resp);
//console.log(data[0].the_geom);
var querylayer1 = new OpenLayers.Layer.Vector(
'Query1',
{
isBaseLayer: false,
projection: wgs,
geometryName: 'the_geom',
}
);
querylayer1.addFeatures(data);
map.addLayer(querylayer1);
}
})
Any suggestions are more than welcomed :)
Thanks to you all!
Cheers,
--
Hugo Martins
FMV-UTL
CIISA-Epidemiologia e Saúde Pública Veterinária
Av. da Universidade Técnica
1300-477 Lisboa
N 38*42'49.54", W 9*11'43.42"
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