makemaps.py 文件源码

def getProjectedPatch(polygon, m, edgecolor, facecolor, lw=1., zorder=10):
    polyjson = mapping(polygon)
    tlist = []
    for sequence in polyjson['coordinates']:
        lon, lat = list(zip(*sequence))
        x, y = m(lon, lat)
        tlist.append(tuple(zip(x, y)))
    polyjson['coordinates'] = tuple(tlist)
    ppolygon = shape(polyjson)
    patch = PolygonPatch(ppolygon, facecolor=facecolor, edgecolor=edgecolor,
                         zorder=zorder, linewidth=lw, fill=True, visible=True)
    return patch