如何在Google地图V2上将不规则多边形划分为相等的区域

I am developing an application for sampling Glebe for agriculture purpose. In That a user can select a a Glebe by tapping on map which will create a polygon according to the number of taps. I am able to create that polygon and able to get the area of the polygon. But Now I need to divide it into equal areas.I am developing an application for sampling Gle