Method selector_changed

js/src/GridHeatMap.ts:438–459

(point_selector, rect_selector)

  }

  selector_changed(point_selector, rect_selector) {
    if (point_selector === undefined) {
      this.model.set('selected', null);
      this.touch();
      return [];
    }
    const rowIndices = _.range(this.numRows);
    const colIndices = _.range(this.numColumns);
    const selCols = _.filter(colIndices, (index) => {
      return rect_selector([this.columnPixels[index], []]);
    });
    const selRows = _.filter(rowIndices, (index) => {
      return rect_selector([[], this.rowPixels[index]]);
    });
    let selected = selCols.map((s) => {
      return selRows.map((r) => [r, s]);
    });
    // @ts-ignore
    selected = _.flatten(selected, true);
    this.model.set('selected', selected);
    this.touch();
  }

  draw() {
    this.set_ranges();