def generate_quick_linesample_arrays(source_area_def,
target_area_def,
nprocs=1):
"""Generate linesample arrays for quick grid resampling
Parameters
-----------
source_area_def : object
Source area definition as geometry definition object
target_area_def : object
Target area definition as geometry definition object
nprocs : int, optional
Number of processor cores to be used
Returns
-------
(row_indices, col_indices) : tuple of numpy arrays
"""
from pyresample.grid import get_linesample
lons, lats = target_area_def.get_lonlats(nprocs)
source_pixel_y, source_pixel_x = get_linesample(lons,
lats,
source_area_def,
nprocs=nprocs)
source_pixel_x = _downcast_index_array(source_pixel_x,
source_area_def.shape[1])
source_pixel_y = _downcast_index_array(source_pixel_y,
source_area_def.shape[0])
return source_pixel_y, source_pixel_x
def generate_quick_linesample_arrays(source_area_def, target_area_def, nprocs=1):
"""Generate linesample arrays for quick grid resampling
Parameters
-----------
source_area_def : object
Source area definition as geometry definition object
target_area_def : object
Target area definition as geometry definition object
nprocs : int, optional
Number of processor cores to be used
Returns
-------
(row_indices, col_indices) : tuple of numpy arrays
"""
from pyresample.grid import get_linesample
lons, lats = target_area_def.get_lonlats(nprocs)
source_pixel_y, source_pixel_x = get_linesample(lons, lats,
source_area_def,
nprocs=nprocs)
source_pixel_x = _downcast_index_array(source_pixel_x,
source_area_def.shape[1])
source_pixel_y = _downcast_index_array(source_pixel_y,
source_area_def.shape[0])
return source_pixel_y, source_pixel_x
