googlemaps-utils
v0.0.1
Published
A collection of utility functions for Google Maps.
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googlemaps-utils
Google Maps utilities for;
- calculating bounds - get the bounds of a static map API request.
- calculating zoom - determine the zoom level to use for a given bounds.
Installation
$ npm install -g googlemaps-utils
Examples
The following examples show you how to use googlemaps-utils.
var gmu = require('googlemaps-utils');
// Static map we want the bounds for
// http://maps.googleapis.com/maps/api/staticmap?center=-26.6812783, 153.1215971&zoom=15&size=649x480&sensor=false
// calculate the bounds for a given lonlat, zoom, width and height
var bounds = gmu.calcBounds(-26.6812783, 153.1215971, 15, 649, 480);
/*
{ bounds: [
153.10767107079468,
-26.690480881985657,
153.13552312920532,
-26.67207497516463
],
bbox: '153.10767107079468,-26.690480881985657,153.13552312920532,-26.67207497516463',
top: -26.67207497516463,
right: 153.13552312920532,
bottom: -26.690480881985657,
left: 153.10767107079468
}
*/
// calculate the zoom for a given bounds (l, b, r, t), width and height
var zoom = gmu.calcZoomForBounds([153.10767107079468, -26.690480881985657, 153.13552312920532, -26.67207497516463], 649, 480);
// 15
Running tests
$ npm test