Method mousedown

js/src/PanZoom.ts:140–144

()

  }

  mousedown() {
    this.use_css_rotation_workaround =
      !IS_CHROMIUM && this.hasRotatedParent(this.el);
    this._mousedown(this.mousePos());
  }

  _mousedown(mouse_pos) {
    const scales = this.model.getScales();