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canvas output for tessel in browsers

Canvas tiles for tessel, in a browser via browserify.

npm install --save tessel-canvas-browser

Given a tessel map state and a canvas element from the DOM, download all necessary tiles and render them into the canvas, calling callback with any errors and the canvas element when finished.

crossOrigin is a boolean flag for whether images are loaded with CORS so that the resulting Canvas does not suffer from the same origin policy.

var tessel = require('tessel'),
    tesselCanvas = require('tessel-canvas-browser');
var map =,
    canvas = document.body.appendChild(document.createElement('canvas'));
canvas.width = 500;
canvas.height = 500;
tesselCanvas(map.state(), canvas);