code: public void set(double left, double right,
                      double bottom, double top,
                      double near, double far) {
          this.left = left;
          this.right = right;
          this.bottom = bottom;
          this.top = top;
          this.near = near;
          this.far = far;
      }
docs: Sets the clipping plane.
  
  @param left
  The left coordinate of the clipping plane.
  @param right
  The right coordinate of the clipping plane.
  @param bottom
  The bottom coordinate of the clipping plane.
  @param top
  The top coordinate of the clipping plane.
  @param near
  The near coordinate of the clipping plane.
  @param far
  The far coordinate of the clipping plane.