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
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)
with mock.patch.object(target, 'project_geometry',
wraps=target.project_geometry) as counter:
trans.transform_path(pth1)
# pth1 should allow a short-cut.
counter.assert_not_called()
with mock.patch.object(target, 'project_geometry',
wraps=target.project_geometry) as counter:
trans.transform_path(pth2)
counter.assert_called_once()
with mock.patch.object(target, 'project_geometry',
wraps=target.project_geometry) as counter:
trans.transform_path(pth3)
counter.assert_called_once()
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_equal(counter.count, 0)
with counter:
trans.transform_path(pth2)
assert_equal(counter.count, 1)
with counter:
trans.transform_path(pth3)
assert_equal(counter.count, 2)
def rob_2_rob_shifted(self):
return InterProjectionTransform(ccrs.Robinson(),
ccrs.Robinson(central_longitude=0))
def pc_2_rob(self):
return InterProjectionTransform(ccrs.PlateCarree(), ccrs.Robinson())
def pc_2_pc(self):
return InterProjectionTransform(ccrs.PlateCarree(), ccrs.PlateCarree())
