>The thing I can't figure out is, if I had the JSON data already in
GeoJSON format, in a Javascript >variable, how do I make an OpenLayers
layer out of it?
Script insertion?
I load a json file (which in my case is a variable structure describing
the layer I want to load and all its properties) with:
function injectScript(filename){
var headID = document.getElementsByTagName("head")[0];
curScriptTag = document.createElement('script');
curScriptTag.type = 'text/javascript';
curScriptTag.src = filename;
curScriptTag.onload= scriptLoaded;
headID.appendChild(curScriptTag);
}
function scriptLoaded() {
curScriptTag.parentNode.removeChild(curScriptTag);
}
Now the trick is that in the json file, I surround the js variable with
a function call. eg
If my variable was: [{"layername":"mylayer", etc}] I change it to
layerLoad([{"layername":"mylayer", etc}]) and in my code I have function
function layerLoad(layerobj) {
etc
}
to process the variable.
HTH.
--
Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St,
Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232
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