Method update_data

js/src/LinesModel.ts:66–128

()

  }

  update_data() {
    this.dirty = true;
    // Handling data updates
    const that = this;
    this.x_data = this.get('x');
    this.y_data = this.get('y');
    this.color_data = this.get('color') || [];

    let curve_labels = this.get('labels');
    if (this.x_data.length === 0 || this.y_data.length === 0) {
      this.mark_data = [];
    } else {
      this.x_data = utils.is_array(this.x_data[0])
        ? this.x_data
        : [this.x_data];
      this.y_data = utils.is_array(this.y_data[0])
        ? this.y_data
        : [this.y_data];
      curve_labels = this.get_labels();

      const y_length = this.y_data.length;

      if (this.x_data.length == 1 && y_length > 1) {
        // same x for all y
        this.mark_data = curve_labels.map((name, i) => {
          return {
            name: name,
            // since y_data may be a TypedArray, explicitly use Array.map
            values: Array.prototype.map.call(that.y_data[i], (d, j) => {
              return {
                x: that.x_data[0][j],
                y: d,
                y0: that.y_data[Math.min(i + 1, y_length - 1)][j],
                sub_index: j,
              };
            }),
            color: that.color_data[i],
            index: i,
          };
        });
      } else {
        this.mark_data = curve_labels.map((name, i) => {
          const xy_data = d3.zip(that.x_data[i], that.y_data[i]);
          return {
            name: name,
            values: xy_data.map((d, j) => {
              return {
                x: d[0],
                y: d[1],
                y0: that.y_data[Math.min(i + 1, y_length - 1)][j],
                sub_index: j,
              };
            }),
            color: that.color_data[i],
            index: i,
          };
        });
      }