Method isCollideWithLine

packages/shapes/src/Rectangle.ts:235–258

* 自己这个矩形是否和线段有交点 * 用于节点切割检测 * * @param line

(line: Line)

   * @param line
   */
  public isCollideWithLine(line: Line): boolean {
    if (this.isPointIn(line.start) || this.isPointIn(line.end)) {
      // 当用于切割线的时候，两个端点必定都在矩形外
      // 这个实际上是不可能的，但是为了保险起见，还是加上判断
      return true;
    }

    if (line.isIntersectingWithHorizontalLine(this.location.y, this.left, this.right)) {
      return true;
    }

    if (line.isIntersectingWithHorizontalLine(this.location.y + this.size.y, this.left, this.right)) {
      return true;
    }

    if (line.isIntersectingWithVerticalLine(this.location.x, this.bottom, this.top)) {
      return true;
    }

    if (line.isIntersectingWithVerticalLine(this.location.x + this.size.x, this.bottom, this.top)) {
      return true;
    }
    return false;
  }

  /**
   * 获取线段和矩形的交点