coords_to_deme_dict

coords_to_deme_dict(raster, coordinates)

Finds the cells a given set of coordinates belong to in a raster and returns a dictionary mapping the cell indices to the centroid coordinates of those cells. Because the cells correspond with demes in the 2D stepping stone models, the cell indices are considered deme indices. The coordinates typically correspond to empirical data that the simulations need to be sampled from.

Parameters

Name	Type	Description	Default
raster	rasterio.DatasetReader	The raster data as a rasterio DatasetReader object.	required
coordinates	Union[List[Tuple[float, float]], gpd.GeoDataFrame]	A list of (x, y) coordinates or a geopandas GeoDataFrame.	required

Returns

Type	Description
Dict[int, List[float]]	A dictionary mapping deme indices to their corresponding coordinates.