javascript - Add GeoJson variable to GoogleMap per addGeoJson -

what want:

• extract lat,lon values json new variable build geojson
• load new variable googlemap , create polygon

this json, contains needed lat, lon values:

{ "rangemap": {     "rangemaps": [         {             "polyline": [                 {                     "lat": 48.1914210319519,                     "lon": 11.3745188713074                 },                 {                     "lat": 48.1789970397949,                     "lon": 11.3705492019653                 },                 ... , on 

this variable want load map:

var rangemap_eco = {     "type": "featurecollection",     "features": [       {         "type": "feature",         "geometry": {             "type": "polygon",              "coordinates": [               ]         }       }     ] }; 

with code extract coordinates json "coordinates"-array in variable:

$scope.parserm_eco = function(){     var first;     var last;      for(var z=0; z < vm.rangespider.rangemap.rangemaps[0].polyline.length; z++) {         first = vm.rangespider.rangemap.rangemaps[0].polyline[z].lon;         last = vm.rangespider.rangemap.rangemaps[0].polyline[z].lat;         arr[z] = '['+first+','+last+']';     }     rangemap_eco.features[0].geometry.coordinates.push(arr);     console.log(rangemap_eco); } 

with map.data.addgeojson(rangemap_eco); load variable map.

but error "error: in property "features": @ index 0: in property "geometry": in property "coordinates": @ index 0: @ index 0: not array"

i don't know where's mistake....

arr[z] = '['+first+','+last+']'; 

should be

arr[z] = [first, last]; 

or better

arr.push([first, last]); 

i.e. "coordinates" array of arrays

coordinates: [     [lon, lat], [lon, lat], ... etc ]