function ImageLittlePlanet ( source, size, ratio ) {

	    LittlePlanet.call( this, 'image', source, size, ratio );

	}
@classdesc Image Little Planet
@constructor
@param {string} source 		- URL for the image source
@param {number} [size=10000] - Size of plane geometry
@param {number} [ratio=0.5]  - Ratio of plane geometry's height against width