Method transition

packages/markmap-view/src/view.ts:608–613

(
    sel: d3.Selection<T, U, P, Q>,
  )

  }

  transition<T extends d3.BaseType, U, P extends d3.BaseType, Q>(
    sel: d3.Selection<T, U, P, Q>,
  ): d3.Transition<T, U, P, Q> {
    const { duration } = this.options;
    return sel.transition().duration(duration);
  }

  /**
   * Fit the content to the viewport.