Function clipBBox

clipBBox(bb: undefined | BBOX, axis: 0 | 1, k1: number, k2: number): BBOX
Create a new bounding box clipped by the axis and min-max
Parameters
- bb: undefined | BBOX
  the original bounding box
- axis: 0 | 1
  0 for x, 1 for y
- k1: number
  the lower bound
- k2: number
  the upper bound
Returns BBOX
the new bounding box clipped by the axis and min-max