Contents:
pysal.lib
pysal.explore
pysal.viz
pysal.model
pysal.lib.cg.
linear2arcdist
将单位球体(r3)中的线性距离转换为基于提供的半径的弧距离
实例
>>> pt0 = (0,0) >>> pt1 = (180,0) >>> d = arcdist(pt0,pt1,RADIUS_EARTH_MILES) >>> d == linear2arcdist(2.0, radius = RADIUS_EARTH_MILES) True