♦
2017-05-23 20:33:40
iH8's initial answer was almost correct.
To specify properties that will appear in a vector layer's GeoJSON export (i.e. through its .toGeoJSON() method), you have to fill its feature.type and feature.properties members:
var myVectorLayer = L.rectangle(...) // whatever
var feature = myVectorLayer.feature = myVectorLayer.feature || {};
feature.type = "Feature";
feature.properties = feature.properties || {};
feature.properties["Foo"] = "Bar";
Now myVectorLayer.toGeoJSON() returns a valid GeoJSON feature object represented by:
{
"type": "Feature",
"properties": {
"Foo": "Bar"
// More properties that may be pre-filled.
},
"geometry": // The vector geometry
}
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