bw2regional.density

Module Contents

Functions

divide_by_area(source_fp, destination_fp)	Create a new raster file at destination_fp, dividing the values in source_fp by their cell's area.
get_area(lat1, lat2, width)	Get area of a spherical quadrangle.
get_column_array(affine, rows, width)

bw2regional.density.divide_by_area(source_fp, destination_fp)

Create a new raster file at destination_fp, dividing the values in source_fp by their cell’s area.

Will raise an error is the CRS is not geographic, or the raster is rotated.

bw2regional.density.get_area(lat1, lat2, width)

Get area of a spherical quadrangle.

lat1, lat2, and width should all be in degrees.

Uses the formula derived and demonstrated in https://gis.stackexchange.com/questions/127165/more-accurate-way-to-calculate-area-of-rasters.

bw2regional.density.get_column_array(affine, rows, width)