x1: function(){
		var scale = this.get('xScale');
		if(scale.rangeBands) {
			throw new Error('nf-image does not support ordinal scales');
		}
		return normalizeScale(scale, this.get('width') + this.get('x'));
	}.property('xScale', 'width', 'x'),
	svgY2: function(){
		return normalizeScale(this.get('yScale'), this.get('y2'));
	}.property('y2', 'yScale'),
	svgX2: function(){
		return normalizeScale(this.get('xScale'), this.get('x2'));
	}.property('x2', 'xScale'),