equalarea

An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.

摘要构建了一个纬线平行于赤道的直线，经线对称于中央直经线的双曲线，且面没有变形的投影集合，并得到一组概括公式。