example/public/ueditor/third-party/highcharts/highcharts.src.js
function (plotX, plotY, inverted) {
		var x = inverted ? plotY : plotX,
			y = inverted ? plotX : plotY;
			
		return x >= 0 &&
			x <= this.plotWidth &&
			y >= 0 &&
			y <= this.plotHeight;
	}
function (plotX, plotY, inverted) {
		var x = inverted ? plotY : plotX,
			y = inverted ? plotX : plotY;
			
		return x >= 0 &&
			x <= this.plotWidth &&
			y >= 0 &&
			y <= this.plotHeight;
	}
function ( plotX , plotY , inverted ) { var x = inverted ? plotY : plotX , y = inverted ? plotX : plotY ; return x >= 0 && x <= this . plotWidth && y >= 0 && y <= this . plotHeight ; }
Check whether a given point is within the plot area

@param {Number} plotX Pixel x relative to the plot area
@param {Number} plotY Pixel y relative to the plot area
@param {Boolean} inverted Whether the chart is inverted
Check whether a given point is within the plot area