pyremap.descriptor.ProjectionGridDescriptor.read

classmethod ProjectionGridDescriptor.read(projection, filename, mesh_name=None, x_var_name='x', y_var_name='y')[source]

Given a grid file with x and y coordinates defining the axes of the logically rectangular grid, read in the x and y coordinates and interpolate/extrapolate to locate corners.

Parameters:

  • projection (pyproj.Proj object) – The projection used to map from grid x-y space to latitude and longitude

  • filename (str) – The path of the file containing the grid data

  • mesh_name (str, optional) – The name of the grid (e.g. '10km_Antarctic_stereo'). If not provided, the data set in filename must have a global attribute mesh_name of meshName that will be used instead.

  • x_var_name (str, optional) – The name of the x and y (in meters) variables in the grid file

  • y_var_name (str, optional) – The name of the x and y (in meters) variables in the grid file