Modification of wave

Make changes to the square limit of wave shown in figure 2.9 by working at each of the levels described above. In particular:

a. Add some segments to the primitive wave painter of exercise 2.49 (to add a smile, for example).

b. Change the pattern constructed by corner-split (for example, by using only one copy of the up-split and right-split images instead of two).

c. Modify the version of square-limit that uses square-of-four so as to assemble the corners in a different pattern. (For example, you might make the big Mr. Rogers look outward from each corner of the square.)

Figure 2.9: Designs generated with the picture language.