生成Del aunay三角网的合成算法.算法不但继承了合成算法的优点，可根据实际的点集数目和运算环境，调节阀值，从而动态平衡时空性能-Del aunay triangulation to generate the synthesis algorithm. Algorithm not only inherits the advantages of synthesis algorithms can be set according to the actual number and computing environment, adjusting threshold, thus the dynamic balance of temporal and spatial properties