GIS.Hylo

Module to transform shapefiles.

Documentation

districtArea :: [District] -> String

Get the areas of various objects and return a string suitable for printing

districtPerimeter :: [District] -> String

Get the perimeters of various objects and return a string suitable for printing

districtCompactness :: [District] -> String

Label with relative compactness

districtToMapP :: Projection -> [District] -> Map

Given a projection and lists of districts, draw a map.

districtToMapLensP :: Show a => Projection -> Lens' District a -> [District] -> Map

Given a projection and lists of districts, draw a map, with labels determined by a lens

districtToMapLens :: Show a => Lens' District a -> [District] -> Map

Given a list of districts, draw a map, with labels determined by a lens.

districtToMap :: [District] -> Map

Given a list of districts, draw a map.

districtToMapFilesP :: Projection -> [District] -> [Map]

Given a projection and list of districts, return a list of maps.

getDistricts :: FilePath -> IO (Maybe [District])

Given the path to a shapefile, return a list of districts, if it contains them.

getPolygon :: RecContents -> [Polygon]

Helper function for extracting from shapefiles.