中文说明：
求星图中星象坐标的matlab函数，输入星图，利用交叉投影方法得到星象所在区域的四个顶点坐标和星象的质心，能够快速的求得星图星象的位置信息
English Description：
Matlab for star coordinates in the map function, input dialog, cross projection methods are used to get the astrological four vertex coordinates of the region and the center of mass, able to quickly get the location information in the chart astrology