scatterbar就是画出三维散点柱状图，并且可以调整柱子的大小和颜色渐变，比原函数bar3更方便，更好用。-scatterbar is to draw three-dimensional scatter histogram, and can adjust the size and color gradients pillars, and more convenient than the original function bar3, easier to use.

实现了七小区的随机用户的撒点，并且求出了用户之间的串扰，串扰的大小通过渐变的颜色来表示出来。-To achieve a random user sprinkle seven-cell, and determine the crosstalk between users, crosstalk size by gradient colors to represent it.