1.Koch Fractal

The **Figure 12** has presented the 2nd iteration process for the line segment, we do not repeat here. The detailed iteration method is, (1) the line segment is selected as the initiator, (2) divide the segment into three equal portions, then rotate the middle portion �60 degrees to form another two new subsegments, and (3) repeat the process of last step. The length will increase 1/3 times for each iteration.
