todo

  /*
  centerGraph() {
    const { height, width } = this.graph.getGraphDimensions();
    this.panTo(width / 2, height / 2);
  }

  panTo(x: number, y: number) {
    const { offsetX, offsetY, zoomLevel } = this.state;

    const newOffsetX = (x - offsetX) * (zoomLevel + (this.chartWidth / 2));
    const newOffsetY = (y - offsetY) * (zoomLevel + (this.chartHeight / 2));

    this.setState({
      offsetY: newOffsetY,
      offsetX: newOffsetX
    });
  }
  */