text: export default function drawOrigin() {
      this.containers.origin.selectAll('*').remove();
  
      if (this.x_dom[0] < 0) {
          this.containers.origin
              .append('line')
              .classed('wc-origin wc-origin--x', true)
              .attr({
                  x1: this.x(0),
                  x2: this.x(0),
                  y1: 0,
                  y2: this.plot_height,
                  stroke: 'black',
                  'stroke-width': 2
              });
      }
  
      if (this.y_dom[0] < 0) {
          this.containers.origin
              .append('line')
              .classed('wc-origin wc-origin--y', true)
              .attr({
                  x1: 0,
                  x2: this.plot_width,
                  y1: this.y(0),
                  y2: this.y(0),
                  stroke: 'black',
                  'stroke-width': 2
              });
      }
  }
  