Hi,
thanks to the quick answer and testing. We don't use the GeoJSON format
directly, only a derived class. The write method looks quite same:
write: function (obj, pretty, layerStyle) {
var geojson = {
"type": null,
"properties": new Object()
};
if (obj instanceof Array) {
geojson.type = "FeatureCollection";
geojson.defaultStyle = layerStyle;
var numFeatures = obj.length;
geojson.features = new Array(numFeatures);
for (var i = 0; i < numFeatures; ++i) {
var element = obj[i];
if (!element instanceof OpenLayers.Feature.Vector) {
var msg = "FeatureCollection only supports
collections " +
"of features: " + element;
throw msg;
}
for (var a in element.attributes.style) {
if (element.attributes.style[a] ==
geojson.defaultStyle[a]) {
delete (element.attributes.style[a]);
}
}
geojson.features[i] = this.extract.feature.apply(
this, [element]
);
}
} else if (obj.CLASS_NAME.indexOf("OpenLayers.Geometry") == 0) {
geojson = this.extract.geometry.apply(this, [obj]);
} else if (obj instanceof OpenLayers.Feature.Vector) {
geojson = this.extract.feature.apply(this, [obj]);
if (obj.layer && obj.layer.projection) {
geojson.crs = this.createCRSObject(obj);
}
}
var jsonFormatter =new OpenLayers.Format.JSON();
return jsonFormatter.write(geojson, pretty);
},
We pass an array of features, false and the default style of the layer. ...
Now I tested a little and when I pass true not false for pretty all is fine.
Thanks
Slawomir
Am 17.02.2011 11:04, schrieb Andreas Hocevar:
Hi Slawomir,
you must be doing something wrong when serializing.
OpenLayers.Format.GeoJSON::write takes an array of features as argument. I just
verified that it works as expected if you use it this ways.
It looks like you are serializing your arrays separately in some way. Maybe you
can share your code to shed some light on what you're doing?
Regards,
Andreas.
On Feb 17, 2011, at 09:07 , Slawomir Messner wrote:
Hi,
some revisions ago the JSON.js is changed to use the native browser
possibilities. But now arrays are in double quotes(see example below) and our
backend has problems with deserialize it. As I know it is that the JSON format
has no double quotes around arrays. So where is the error, is the native
serializer(Firefox and Chrome) not producing a standard format? With the old
code (before native browser function is used) all was fine.
The object we pass to the OL.Format.JSON.write has the features-attribute as
array I tested it in firebug/chrome-dev-tools. I don't know why it should be a
string after serializing.
Example:
{"type":"FeatureCollection","properties":{},"defaultStyle":{"pointRadius":"4","fillColor":"#008700","fillOpacity":"0.6","stroke":"True","strokeColor":"#21007E","strokeOpacity":"0.9","strokeWidth":"1","strokeDashstyle":"solid","label":"","fontFamily":"Arial","labelAlign":"lb","display":""},
"features":"[{\"type\": \"Feature\", \"id\": \"OpenLayers.Feature.Vector_339\", \"properties\": {\"gid\": 101225, \"title\": \"VREDEN\", \"ownerType\": 1, \"style\": {\"label\": \"<font color='#FF0000' bold='false' italic='false' sizeFactor='1'>[Â</font>\", \"fontFamily\":
\"SprachGIS-Symbole2\"}, \"symbols\": [26373, 26367], \"wktGeometry\": \"POINT(759321.378649999 6806065.527048201)\"}, \"geometry\": {\"type\": \"Point\", \"coordinates\": [759321.378649999, 6806065.527048201]}}, {\"type\": \"Feature\", \"id\": \"OpenLayers.Feature.Vector_341\", \"properties\": {\"gid\":
101252, \"title\": \"MILLINGEN\", \"ownerType\": 1, \"style\": {\"label\": \"<font color='#FF0000' bold='false' italic='false' sizeFactor='1'>Â</font>\"...
Has someone the same experience?
Thanks for help in advance.
Slawomir
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