src/imagetilesource.js
function (level, x, y) {
            var context = null;
            if (level >= this.minLevel && level <= this.maxLevel) {
                context = this.levels[level].context2D;
            }
            return context;
        }
function (level, x, y) {
            var context = null;
            if (level >= this.minLevel && level <= this.maxLevel) {
                context = this.levels[level].context2D;
            }
            return context;
        }
function ( level , x , y ) { var context = null ; if ( level >= this . minLevel && level <= this . maxLevel ) { context = this . levels [ level ] . context2D ; } return context ; }
Retrieves a tile context 2D
@function
@param {Number} level Level of the tile
@param {Number} x x coordinate of the tile
@param {Number} y y coordinate of the tile
Retrieves a tile context 2D