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Getting google maps latlng Array from JSON

in jQuery Mobile • 6 years ago

Dear forum-members,

I'm new to this forum and pretty new to JQuery and I have an issue that I can't solve by myself even after long research.

Currently I'm loading coordinates into an array directly in my html-file:

var AreaCoords = [
new google.maps.LatLng(48.250118898964146, 16.542320251464843),
new google.maps.LatLng(48.25304504692614, 16.472831717692315),
new google.maps.LatLng(48.20913525537747, 16.440147397806868),
new google.maps.LatLng(48.190462182620756, 16.468437190633267),
new google.maps.LatLng(48.18167250808985, 16.549736014567315),
new google.maps.LatLng(48.21059952074874, 16.592033382039517)
];

With this variable, I'm later creating a google.maps.polygon:

var Area = new google.maps.Polygon({
paths: AreaCoords
});

I know want to load the coordinates from a JSon file and I've thought about creating a JSON-File like this:

{
"coordinates": [
{
"lat": "48.250118898964146",
"lng": "16.542320251464843"
},
{
"lat": "48.25304504692614",
"lng": "16.472831717692315"
},
{
"lat": "48.20913525537747",
"lng": "16.440147397806868"
}
]
}

I don't know how to load this JSON into a variable, I've tried the getJSON function but it didn't work at all.

I would appreciate any help or hint!

Thank you very very much!

-Robert

Replies(1)

Sµßhrånil∂

Re: Getting google maps latlng Array from JSON

6 years ago

getJSON is the function you need to use

you can use it like

$(function(){
$.getJSON( "test.json", function( data ) {
var AreaCoords = new Array();
$.each( data.coordinates, function( key, val ) {
AreaCoords.push(new google.maps.LatLng(val.lat, val.lng));
});
});
});

See this example where i used same json data you have and made an ajax call to that file using $.getJSON and populate lat, lng in a table. Check script.js for the code i write and test.json is the file where i put the json.

http://plnkr.co/edit/A0jr9omEMAfitX480Qm0?p=preview

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