def extractAll(self):
shp = ShpParser(config.poly_dir)
for city in config.allcities.keys():
# Greater London is a special case as it has 32 councils
if city != "Greater London":
shp.parse(config.boundaries_file, city, False)
shp = ShpParser(config.greater_london_out_dir)
for borough in config.greater_london:
shp.parse(config.boundaries_file, borough, False)
pts = convexhull.merge(config.greater_london_out_dir)
c = convexhull.convexHull(pts)
shp.write('Greater London_OSGB36_polygon.csv', c)
def extractConvexhulls(self):
shp = ShpParser(config.convexhulls_dir)
allfiles = [f for f in os.listdir(config.poly_dir)
if os.path.isfile(os.path.join(config.poly_dir,f)) and
"OSGB36_polygon.csv" in f]
for fn in allfiles:
pts = convexhull.loadCSV(config.poly_dir+fn)
pts = shp.convert_list_to_WGS84(pts)
c = convexhull.convexHull(pts)
shp.write(fn[0:-18]+"WGS84_convexhull.csv", c)
name = "Greater London_OSGB36_polygon.csv"
pts = convexhull.loadCSV(config.greater_london_out_dir+name)
pts = shp.convert_list_to_WGS84(pts)
shp.write(name[0:-18]+"WGS84_convexhull.csv", pts)
