Method multi_brush_move

js/src/BrushSelector.ts:651–660

(item)

  }

  multi_brush_move(item) {
    if (this.ignoreBrushEvents) {
      return;
    }

    const extent = d3GetEvent().selection;

    this.update_text(item, extent);
    this.convert_and_save(extent, item);
  }

  update_text(item, extent) {
    if (extent === null) {