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# (C) British Crown Copyright 2011 - 2018, Met Office
#
# This file is part of cartopy.
#
# cartopy is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cartopy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with cartopy. If not, see <https://www.gnu.org/licenses/>.
from __future__ import (absolute_import, division, print_function)
from matplotlib.testing.decorators import cleanup
import matplotlib.path as mpath
import matplotlib.pyplot as plt
try:
from unittest import mock
except ImportError:
import mock
import numpy as np
import pytest
import cartopy.crs as ccrs
from cartopy.mpl.geoaxes import InterProjectionTransform, GeoAxes
from cartopy.tests.mpl.test_caching import CallCounter
class TestNoSpherical(object):
def setup_method(self):
self.ax = plt.axes(projection=ccrs.PlateCarree())
self.data = np.arange(12).reshape((3, 4))
def teardown_method(self):
plt.clf()
plt.close()
def test_contour(self):
with pytest.raises(ValueError):
self.ax.contour(self.data, transform=ccrs.Geodetic())
def test_contourf(self):
with pytest.raises(ValueError):
self.ax.contourf(self.data, transform=ccrs.Geodetic())
def test_pcolor(self):
with pytest.raises(ValueError):
self.ax.pcolor(self.data, transform=ccrs.Geodetic())
def test_pcolormesh(self):
with pytest.raises(ValueError):
self.ax.pcolormesh(self.data, transform=ccrs.Geodetic())
def test_transform_PlateCarree_shortcut():
src = ccrs.PlateCarree(central_longitude=0)
target = ccrs.PlateCarree(central_longitude=180)
# of the 3 paths, 2 of them cannot be short-cutted.
pth1 = mpath.Path([[0.5, 0], [10, 10]])
pth2 = mpath.Path([[0.5, 91], [10, 10]])
pth3 = mpath.Path([[-0.5, 0], [10, 10]])
trans = InterProjectionTransform(src, target)
counter = CallCounter(target, 'project_geometry')
with counter:
trans.transform_path(pth1)
# pth1 should allow a short-cut.
assert counter.count == 0
with counter:
trans.transform_path(pth2)
assert counter.count == 1
with counter:
trans.transform_path(pth3)
assert counter.count == 2
class Test_InterProjectionTransform():
def pc_2_pc(self):
return InterProjectionTransform(
ccrs.PlateCarree(), ccrs.PlateCarree())
def pc_2_rob(self):
return InterProjectionTransform(ccrs.PlateCarree(), ccrs.Robinson())
def rob_2_rob_shifted(self):
return InterProjectionTransform(
ccrs.Robinson(), ccrs.Robinson(central_longitude=0))
def test_eq(self):
assert self.pc_2_pc() == self.pc_2_pc()
assert self.pc_2_rob() == self.pc_2_rob()
assert self.rob_2_rob_shifted() == self.rob_2_rob_shifted()
assert not self.pc_2_rob() == self.rob_2_rob_shifted()
assert not self.pc_2_pc() == 'not a transform obj'
def test_ne(self):
assert not self.pc_2_pc() != self.pc_2_pc()
print(self.pc_2_pc() != self.pc_2_rob())
assert self.pc_2_pc() != self.pc_2_rob()
class Test_Axes_add_geometries():
def teardown_method(self):
plt.close()
@mock.patch('cartopy.mpl.geoaxes.GeoAxes.add_feature')
@mock.patch('cartopy.feature.ShapelyFeature')
def test_styler_kwarg(self, ShapelyFeature, add_feature_method):
ax = GeoAxes(plt.figure(), [0, 0, 1, 1],
map_projection=ccrs.Robinson())
ax.add_geometries(mock.sentinel.geometries, mock.sentinel.crs,
styler=mock.sentinel.styler, wibble='wobble')
ShapelyFeature.assert_called_once_with(
mock.sentinel.geometries, mock.sentinel.crs, wibble='wobble')
add_feature_method.assert_called_once_with(
ShapelyFeature(), styler=mock.sentinel.styler)
@cleanup
def test_geoaxes_subplot():
ax = plt.subplot(1, 1, 1, projection=ccrs.PlateCarree())
assert str(ax.__class__) == "<class 'cartopy.mpl.geoaxes.GeoAxesSubplot'>"
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