Add function to read Oasis Montaj© grd files

doc/api/index.rst

@@ -86,6 +86,7 @@ Input and Output
  :toctree: generated/
 
  load_icgem_gdf
+ load_oasis_montaj_grid
 
 Visualization
 -------------

harmonica/__init__.py

@@ -7,6 +7,8 @@
 #
 # Import functions/classes to make the public API
 from . import datasets, synthetic
+from ._io.icgem_gdf import load_icgem_gdf
+from ._io.oasis_montaj_grd import load_oasis_montaj_grid
 from ._version import __version__
 from .equivalent_sources.cartesian import EQLHarmonic, EquivalentSources
 from .equivalent_sources.gradient_boosted import EquivalentSourcesGB
@@ -17,7 +19,6 @@
 from .forward.tesseroid import tesseroid_gravity
 from .forward.tesseroid_layer import DatasetAccessorTesseroidLayer, tesseroid_layer
 from .gravity_corrections import bouguer_correction
-from .io import load_icgem_gdf
 from .isostasy import isostasy_airy, isostatic_moho_airy
 from .transformations import derivative_upward
 

harmonica/_io/__init__.py

@@ -0,0 +1,10 @@
+# Copyright (c) 2018 The Harmonica Developers.
+# Distributed under the terms of the BSD 3-Clause License.
+# SPDX-License-Identifier: BSD-3-Clause
+#
+# This code is part of the Fatiando a Terra project (https://www.fatiando.org)
+#
+"""
+Functions for interacting with standarized data files that contain gravity or
+magnetic geophysical data.
+"""

harmonica/io.py → harmonica/_io/icgem_gdf.py

@@ -5,8 +5,7 @@
 # This code is part of the Fatiando a Terra project (https://www.fatiando.org)
 #
 """
-Functions for interacting with standarized data files that contain gravity or
-magnetic geophysical data.
+Function to read ICGEM .gdf file
 """
 import contextlib