stilt.Mesh

class stilt.Mesh(*, ids: tuple[str, ...], geometries: tuple[Any, ...], crs: str = '+proj=longlat') → None

Arbitrary polygon cells with ids: the general state geometry.

Parameters

idssequence of str

Unique label per cell; becomes the state index (index).

geometriessequence of shapely Polygon / MultiPolygon

One polygon per id, in crs coordinates.

crsstr

PROJ string or "EPSG:xxxx" of the polygon coordinates.

Methods

from_file(path[, ids])	Build from a shapefile / GeoPackage / GeoJSON via geopandas.
from_geodataframe(gdf[, ids])	Build from a GeoDataFrame (polygons in its active geometry column).
from_grid(grid)	Every cell of a rectilinear grid as a polygon, in grid.index order.
from_h3(resolution, bounds)	H3 hexagons of resolution covering bounds (requires h3).
from_windows(coords, size, *[, ids, crs])	Rectangular windows centred on points, e.g. named point sources.
to_crs(crs)	Return this mesh reprojected to crs (requires pyproj).

Attributes

bounds	(xmin, ymin, xmax, ymax) envelope of all cells.
hash	10-char SHA-256 of ids, WKB geometries and CRS.
index	the cell ids, named "cell".
is_longlat	True when polygon coordinates are lon/lat degrees.
min_cell_width	Smallest cell envelope side, in crs units (sets raster resolution).
ids
geometries
crs