In a recent textbook ( Computational geometry : curve and surface modeling by Su and Liu), finds the following on p. 2:

The objects studied in computational geometry are curves and surfaces. In geometric design, surfaces is generally divided into several patches such that each boundary shared by two adjacent patches is a plane curve and such that the projection of four boundaries of each patch into the plane form a rectangle.

Discuss substantially how this is different from the use of term Computational geometry (and in ORourkes textbook). Also, comment on whether there might be common ground in the two definitions.