Interoperation and QGIS
=======================

The **low-level API** uses *numpy* arrays as inputs and outputs

The **cem_gridtools API** also provides API's to return `Shapely Geometries <https://shapely.readthedocs.io/en/stable/manual.html#polygons>`_. These may be used directly if the client can handle them, however, in a lot of cases the geometries will need to be reconstructed in some other geometry object that is native to that application. In this case, you may find it handy to use one of the "Well-Known" formats - `see here for more info <https://shapely.readthedocs.io/en/stable/manual.html#interoperation>`_

**QGIS**
For example, the `CEM QGIS <https://bitbucket.csiro.au/projects/CEM/repos/cem-qgis/browse>`_ repository provides a processing toolbox that uses the **WKB** format to ingest and display geometries genereated by this package