Method drawBg

graph.js:10–16

()

    }

    drawBg(){
        let x = this.canvas.width * this.config.yAxis;
        let y = this.canvas.height - this.canvas.height * this.config.xAxis;

        this.drawGrid( x, y );
        this.drawAxes( x, y );
    }

    drawAxes( x, y, lineWidth = 2 ){
        this.context.strokeStyle = "#88A";