GIS Conversion Tools¶

The stems.gis.convert module contains dispatch functions to convert representations of fundamental GIS data (projections, transforms, bounding boxes, and polygons) to the standard types used internally to this package.

These “standard types” for GIS data variables are the following:

GIS	Object Type
Affine transform	`affine.Affine`
Coordinate Reference System	`rasterio.crs.CRS`
Bounding Box (extent)	`rasterio.coords.BoundingBox`
Bounding Box (polygon)	`shapely.geometry.Polygon`

The conversion functions:

`to_transform`(value[, from_gdal])	Convert input into an `affine.Affine` transform
`to_crs`(value)	Convert a CRS representation to a `rasterio.crs.CRS`
`to_bounds`(value)	Convert input to a `rasterio.coords.BoundingBox`
`to_bbox`(value)	Convert input a bounding box `shapely.geometry.Polygon`