def _on_land_pixel_array(self, coords):
"""
determines which LEs are on lond
:param coords: Nx2 numpy int array of pixel coords matching the bitmap
:type coords: Nx2 numpy int array of pixel coords matching the bitmap
returns: a (N,) array of bools - true for particles that are on land
"""
mask = map(point_in_poly, [self.map_bounds] * len(coords), coords)
racpy = np.copy(coords)[mask]
mskgph = self.bitmap[racpy[:, 0], racpy[:, 1]]
chrmgph = np.array([0] * len(coords))
chrmgph[np.array(mask)] = mskgph
return chrmgph
def _on_land_pixel_array(self, coords):
"""
determines which LEs are on lond
:param coords: Nx2 numpy int array of pixel coords matching the bitmap
:type coords: Nx2 numpy int array of pixel coords matching the bitmap
returns: a (N,) array of bools - true for particles that are on land
"""
mask = map(point_in_poly, [self.map_bounds] * len(coords), coords)
racpy = np.copy(coords)[mask]
mskgph = self.bitmap[racpy[:, 0], racpy[:, 1]]
chrmgph = np.array([0] * len(coords))
chrmgph[np.array(mask)] = mskgph
return chrmgph
def _attr_array_to_dict(self, np_array):
'''convert np_array to list of tuples, used for map_bounds,
spillable_area'''
return map(tuple, np_array.tolist())
def _attr_array_to_dict(self, np_array):
'''convert np_array to list of tuples, used for map_bounds,
spillable_area'''
return map(tuple, np_array.tolist())