def test_grid_type_testing():
"""Test that only the right grids can be implemented."""
dx = (2. / (3.**0.5))**0.5
hmg = HexModelGrid(9, 5, dx)
z = hmg.add_field('topographic__elevation',
hmg.node_x + np.round(hmg.node_y),
at='node')
# D8 is ONLY RASTER
with pytest.raises(NotImplementedError):
FlowDirectorD8(hmg)
# DINF IS ONLY RASTER RASTER
with pytest.raises(NotImplementedError):
FlowDirectorDINF(hmg)
def test_grid_type_testing():
"""Test that only the right grids can be implemented."""
dx = (2.0 / (3.0**0.5))**0.5
hmg = HexModelGrid((3, 3), spacing=dx)
hmg.add_field("topographic__elevation",
hmg.node_x + np.round(hmg.node_y),
at="node")
# D8 is ONLY RASTER
with pytest.raises(NotImplementedError):
FlowDirectorD8(hmg)
# DINF IS ONLY RASTER RASTER
with pytest.raises(NotImplementedError):
FlowDirectorDINF(hmg)
def test_director_adding_methods_are_equivalent_D8():
"""Check that different methods to specifying the director are the same."""
mg0 = RasterModelGrid((10, 10), xy_spacing=(1, 1))
mg0.add_field("topographic__elevation",
mg0.node_x**2 + mg0.node_y**2,
at="node")
fa0 = FlowAccumulator(mg0, flow_director="D8")
fa0.run_one_step()
mg1 = RasterModelGrid((10, 10), xy_spacing=(1, 1))
mg1.add_field("topographic__elevation",
mg1.node_x**2 + mg1.node_y**2,
at="node")
fa1 = FlowAccumulator(mg1, flow_director="FlowDirectorD8")
fa1.run_one_step()
mg2 = RasterModelGrid((10, 10), xy_spacing=(1, 1))
mg2.add_field("topographic__elevation",
mg2.node_x**2 + mg2.node_y**2,
at="node")
fa2 = FlowAccumulator(mg2, flow_director=FlowDirectorD8)
fa2.run_one_step()
mg3 = RasterModelGrid((10, 10), xy_spacing=(1, 1))
mg3.add_field("topographic__elevation",
mg3.node_x**2 + mg3.node_y**2,
at="node")
fd = FlowDirectorD8(mg3)
fa3 = FlowAccumulator(mg3, flow_director=fd)
fa3.run_one_step()
for loc in ["node", "link", "grid"]:
for key in mg0[loc].keys():
if loc == "grid":
assert_array_equal(mg0[loc][key][0], mg1[loc][key][0])
assert_array_equal(mg1[loc][key][0], mg2[loc][key][0])
assert_array_equal(mg2[loc][key][0], mg3[loc][key][0])
else:
assert_array_equal(mg0[loc][key], mg1[loc][key])
assert_array_equal(mg1[loc][key], mg2[loc][key])
assert_array_equal(mg2[loc][key], mg3[loc][key])
def test_director_adding_methods_are_equivalent_D8():
"""Check that different methods to specifying the director are the same."""
mg0 = RasterModelGrid((10, 10), spacing=(1, 1))
z0 = mg0.add_field("topographic__elevation",
mg0.node_x**2 + mg0.node_y**2,
at="node")
fa0 = FlowAccumulator(mg0, flow_director="D8")
fa0.run_one_step()
mg1 = RasterModelGrid((10, 10), spacing=(1, 1))
z1 = mg1.add_field("topographic__elevation",
mg1.node_x**2 + mg1.node_y**2,
at="node")
fa1 = FlowAccumulator(mg1, flow_director="FlowDirectorD8")
fa1.run_one_step()
mg2 = RasterModelGrid((10, 10), spacing=(1, 1))
z2 = mg2.add_field("topographic__elevation",
mg2.node_x**2 + mg2.node_y**2,
at="node")
fa2 = FlowAccumulator(mg2, flow_director=FlowDirectorD8)
fa2.run_one_step()
mg3 = RasterModelGrid((10, 10), spacing=(1, 1))
z3 = mg3.add_field("topographic__elevation",
mg3.node_x**2 + mg3.node_y**2,
at="node")
fd = FlowDirectorD8(mg3)
fa3 = FlowAccumulator(mg3, flow_director=fd)
fa3.run_one_step()
for key in mg0.at_node.keys():
assert_array_equal(mg0.at_node[key], mg1.at_node[key])
assert_array_equal(mg1.at_node[key], mg2.at_node[key])
assert_array_equal(mg2.at_node[key], mg3.at_node[key])
def test_check_fields():
"""Check to make sure the right fields have been created.
Check that the sizes of at least one are also correct (they are at node
so if one is the right size, then they all should be)
"""
mg0 = RasterModelGrid((10, 10), spacing=(1, 1))
z0 = mg0.add_field('topographic__elevation',
mg0.node_x**2 + mg0.node_y**2,
at='node')
fd0 = _FlowDirector(mg0, 'topographic__elevation')
assert list(mg0.at_node.keys()) == ['topographic__elevation']
assert np.size(
mg0.at_node['topographic__elevation']) == mg0.number_of_nodes
mg1 = RasterModelGrid((10, 10), spacing=(1, 1))
z1 = mg1.add_field('topographic__elevation',
mg1.node_x**2 + mg1.node_y**2,
at='node')
fd1 = _FlowDirectorToMany(mg1, 'topographic__elevation')
assert sorted(list(mg1.at_node.keys())) == [
'flow__link_to_receiver_node',
'flow__receiver_node',
'flow__sink_flag',
'topographic__elevation',
'topographic__steepest_slope',
]
assert np.size(
mg1.at_node['topographic__elevation']) == mg1.number_of_nodes
mg2 = RasterModelGrid((10, 10), spacing=(1, 1))
z2 = mg2.add_field('topographic__elevation',
mg2.node_x**2 + mg2.node_y**2,
at='node')
fd2 = _FlowDirectorToOne(mg2, 'topographic__elevation')
assert sorted(list(mg2.at_node.keys())) == [
'flow__link_to_receiver_node',
'flow__receiver_node',
'flow__sink_flag',
'topographic__elevation',
'topographic__steepest_slope',
]
assert np.size(
mg2.at_node['topographic__elevation']) == mg2.number_of_nodes
mg3 = RasterModelGrid((10, 10), spacing=(1, 1))
z3 = mg3.add_field('topographic__elevation',
mg3.node_x**2 + mg3.node_y**2,
at='node')
fd3 = FlowDirectorMFD(mg3, 'topographic__elevation')
assert sorted(list(mg3.at_node.keys())) == [
'flow__link_to_receiver_node',
'flow__links_to_receiver_nodes',
'flow__receiver_node',
'flow__receiver_nodes',
'flow__receiver_proportions',
'flow__sink_flag',
'topographic__elevation',
'topographic__steepest_slope',
]
assert np.size(
mg3.at_node['topographic__elevation']) == mg3.number_of_nodes
mg4 = RasterModelGrid((10, 10), spacing=(1, 1))
z4 = mg4.add_field('topographic__elevation',
mg4.node_x**2 + mg4.node_y**2,
at='node')
fd4 = FlowDirectorDINF(mg4, 'topographic__elevation')
assert sorted(list(mg4.at_node.keys())) == [
'flow__link_to_receiver_node',
'flow__links_to_receiver_nodes',
'flow__receiver_node',
'flow__receiver_nodes',
'flow__receiver_proportions',
'flow__sink_flag',
'topographic__elevation',
'topographic__steepest_slope',
]
assert np.size(
mg4.at_node['topographic__elevation']) == mg4.number_of_nodes
mg5 = RasterModelGrid((10, 10), spacing=(1, 1))
z5 = mg5.add_field('topographic__elevation',
mg5.node_x**2 + mg5.node_y**2,
at='node')
fd5 = FlowDirectorSteepest(mg5, 'topographic__elevation')
assert sorted(list(mg5.at_node.keys())) == [
'flow__link_to_receiver_node',
'flow__receiver_node',
'flow__sink_flag',
'topographic__elevation',
'topographic__steepest_slope',
]
assert np.size(
mg5.at_node['topographic__elevation']) == mg5.number_of_nodes
mg6 = RasterModelGrid((10, 10), spacing=(1, 1))
z6 = mg6.add_field('topographic__elevation',
mg6.node_x**2 + mg6.node_y**2,
at='node')
fd6 = FlowDirectorD8(mg6, 'topographic__elevation')
assert sorted(list(mg6.at_node.keys())) == [
'flow__link_to_receiver_node',
'flow__receiver_node',
'flow__sink_flag',
'topographic__elevation',
'topographic__steepest_slope',
]
assert np.size(
mg6.at_node['topographic__elevation']) == mg6.number_of_nodes
def test_check_fields():
"""Check to make sure the right fields have been created.
Check that the sizes of at least one are also correct (they are at node
so if one is the right size, then they all should be)
"""
mg0 = RasterModelGrid((10, 10), spacing=(1, 1))
mg0.add_field("topographic__elevation",
mg0.node_x**2 + mg0.node_y**2,
at="node")
_FlowDirector(mg0, "topographic__elevation")
assert sorted(list(mg0.at_node.keys())) == [
"flow__sink_flag",
"topographic__elevation",
]
assert np.size(
mg0.at_node["topographic__elevation"]) == mg0.number_of_nodes
mg1 = RasterModelGrid((10, 10), spacing=(1, 1))
mg1.add_field("topographic__elevation",
mg1.node_x**2 + mg1.node_y**2,
at="node")
_FlowDirectorToMany(mg1, "topographic__elevation")
assert sorted(list(mg1.at_node.keys())) == [
"flow__sink_flag",
"topographic__elevation",
]
assert np.size(
mg1.at_node["topographic__elevation"]) == mg1.number_of_nodes
mg2 = RasterModelGrid((10, 10), spacing=(1, 1))
mg2.add_field("topographic__elevation",
mg2.node_x**2 + mg2.node_y**2,
at="node")
_FlowDirectorToOne(mg2, "topographic__elevation")
assert sorted(list(mg2.at_node.keys())) == [
"flow__link_to_receiver_node",
"flow__receiver_node",
"flow__sink_flag",
"topographic__elevation",
"topographic__steepest_slope",
]
assert np.size(
mg2.at_node["topographic__elevation"]) == mg2.number_of_nodes
mg3 = RasterModelGrid((10, 10), spacing=(1, 1))
mg3.add_field("topographic__elevation",
mg3.node_x**2 + mg3.node_y**2,
at="node")
FlowDirectorMFD(mg3, "topographic__elevation")
assert sorted(list(mg3.at_node.keys())) == [
"flow__link_to_receiver_node",
"flow__receiver_node",
"flow__receiver_proportions",
"flow__sink_flag",
"topographic__elevation",
"topographic__steepest_slope",
]
assert np.size(
mg3.at_node["topographic__elevation"]) == mg3.number_of_nodes
mg4 = RasterModelGrid((10, 10), spacing=(1, 1))
mg4.add_field("topographic__elevation",
mg4.node_x**2 + mg4.node_y**2,
at="node")
FlowDirectorDINF(mg4, "topographic__elevation")
assert sorted(list(mg4.at_node.keys())) == [
"flow__link_to_receiver_node",
"flow__receiver_node",
"flow__receiver_proportions",
"flow__sink_flag",
"topographic__elevation",
"topographic__steepest_slope",
]
assert np.size(
mg4.at_node["topographic__elevation"]) == mg4.number_of_nodes
mg5 = RasterModelGrid((10, 10), spacing=(1, 1))
mg5.add_field("topographic__elevation",
mg5.node_x**2 + mg5.node_y**2,
at="node")
FlowDirectorSteepest(mg5, "topographic__elevation")
assert sorted(list(mg5.at_node.keys())) == [
"flow__link_to_receiver_node",
"flow__receiver_node",
"flow__sink_flag",
"topographic__elevation",
"topographic__steepest_slope",
]
assert np.size(
mg5.at_node["topographic__elevation"]) == mg5.number_of_nodes
mg6 = RasterModelGrid((10, 10), spacing=(1, 1))
mg6.add_field("topographic__elevation",
mg6.node_x**2 + mg6.node_y**2,
at="node")
FlowDirectorD8(mg6, "topographic__elevation")
assert sorted(list(mg6.at_node.keys())) == [
"flow__link_to_receiver_node",
"flow__receiver_node",
"flow__sink_flag",
"topographic__elevation",
"topographic__steepest_slope",
]
assert np.size(
mg6.at_node["topographic__elevation"]) == mg6.number_of_nodes