csep.core.regions.CartesianGrid2D

class csep.core.regions.CartesianGrid2D(polygons, dh, name='cartesian2d', mask=None)

Represents a 2D cartesian gridded region.

The class provides functions to query onto an index 2D Cartesian grid and maintains a mapping between space coordinates defined by polygons and the index into the polygon array.

Custom regions can be easily created by using the from_polygon classmethod. This function will accept an arbitrary closed polygon and return a CartesianGrid class with only points inside the polygon to be valid.

__init__(polygons, dh, name='cartesian2d', mask=None)

Methods

__init__(polygons, dh[, name, mask])
from_dict(adict)	Creates a region object from a dictionary
from_origins(origins[, dh, magnitudes, name])	Creates instance of class from 2d numpy.array of lon/lat origins.
get_bbox()	Returns rectangular bounding box around region.
get_cartesian(data)	Returns 2d ndrray representation of the data set, corresponding to the bounding box.
get_cell_area()	Compute the area of each polygon in sq.
get_index_of(lons, lats)	Returns the index of lons, lats in self.polygons
get_location_of(indices)	Returns the polygon associated with the index idx.
get_masked(lons, lats)	Returns bool array lons and lats are not included in the spatial region.
midpoints()	Returns midpoints of rectangular polygons in region
origins()	Returns origins of rectangular polygons in region
tight_bbox([precision])
to_dict()

Attributes

num_nodes

Number of polygons in region