def test_add_slopes(sink_grid1):
z = sink_grid1.at_node["topographic__elevation"]
hf = SinkFiller(sink_grid1)
new_z = z.copy()
outlet_elev = z[sink_grid1.outlet]
hf._elev[sink_grid1.lake] = outlet_elev
rt2 = np.sqrt(2.)
slope_to_add = 0.1
lake_map = np.empty_like(z)
lake_map.fill(XX)
lake_map[sink_grid1.lake] = sink_grid1.lake_code
hf._lf._lake_map = lake_map
hf.lake_nodes_treated = np.array([], dtype=int)
dists = sink_grid1.calc_distances_of_nodes_to_point(
(sink_grid1.node_x[sink_grid1.outlet], sink_grid1.node_y[sink_grid1.outlet])
)
new_z[sink_grid1.lake] = outlet_elev
new_z[sink_grid1.lake] += dists[sink_grid1.lake] * slope_to_add
# test the ones we can do easily analytically separately
straight_north = np.array([23, 16])
off_angle = 24
elevs_out, lake_out = hf._add_slopes(
slope_to_add, sink_grid1.outlet, sink_grid1.lake_code
)
assert_array_equal(
slope_to_add * (np.arange(2.) + 1.) + outlet_elev, elevs_out[straight_north]
)
assert slope_to_add * rt2 + outlet_elev == pytest.approx(elevs_out[off_angle])
assert_array_equal(new_z, elevs_out)
assert_array_equal(sink_grid1.lake, lake_out)
def test_stupid_shaped_hole(sink_grid4):
"""Tests inclined fill into a surface with a deliberately awkward shape."""
fr = FlowRouter(sink_grid4)
hf = SinkFiller(sink_grid4, apply_slope=True)
hf.fill_pits()
hole1 = np.array(
[
4.00007692,
4.00015385,
4.00023077,
4.00030769,
4.00038462,
4.00046154,
4.00053846,
4.00061538,
4.00069231,
4.00076923,
4.00084615,
]
)
hole2 = np.array([7.4, 7.2, 7.6])
assert_array_almost_equal(
sink_grid4.at_node["topographic__elevation"][sink_grid4.lake1], hole1
)
assert_array_almost_equal(
sink_grid4.at_node["topographic__elevation"][sink_grid4.lake2], hole2
)
fr.route_flow()
assert sink_grid4.at_node["flow__sink_flag"][sink_grid4.core_nodes].sum() == 0
def test_filler_inclined2():
"""
Tests an inclined fill into an inclined surface, with two holes.
"""
z_init = z.copy()
hf = SinkFiller(mg, apply_slope=True)
hf.fill_pits()
hole1 = np.array([
4.00009091,
4.00018182,
4.00027273,
4.00036364,
4.00045455,
4.00054545,
4.00063636,
4.00072727,
4.00081818,
])
hole2 = np.array([7.16666667, 7.33333333, 7.5, 7.66666667])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow()
assert_equal(mg.at_node['flow__sink_flag'][mg.core_nodes].sum(), 0)
def test_filler_inclined2(sink_grid3):
"""
Tests an inclined fill into an inclined surface, with two holes.
"""
z_init = sink_grid3.at_node["topographic__elevation"].copy()
fr = FlowRouter(sink_grid3)
hf = SinkFiller(sink_grid3, apply_slope=True)
hf.fill_pits()
hole1 = np.array(
[
4.00009091,
4.00018182,
4.00027273,
4.00036364,
4.00045455,
4.00054545,
4.00063636,
4.00072727,
4.00081818,
]
)
hole2 = np.array([7.16666667, 7.33333333, 7.5, 7.66666667])
assert_array_almost_equal(
sink_grid3.at_node["topographic__elevation"][sink_grid3.lake1], hole1
)
assert_array_almost_equal(
sink_grid3.at_node["topographic__elevation"][sink_grid3.lake2], hole2
)
fr.route_flow()
assert sink_grid3.at_node["flow__sink_flag"][sink_grid3.core_nodes].sum() == 0
def test_get_lake_ext_margin(sink_grid1):
hf = SinkFiller(sink_grid1)
lake = np.array([16, 17, 23, 24, 25, 30, 31, 32])
ext_margin_returned = hf._get_lake_ext_margin(lake)
ext_margin = np.array(
[8, 9, 10, 11, 15, 18, 19, 22, 26, 29, 33, 36, 37, 38, 39, 40]
)
assert_array_equal(ext_margin_returned, ext_margin)
def test_filler_inclined():
"""
Tests a flat fill into an inclined surface, with two holes.
"""
hf = SinkFiller(mg)
hf.fill_pits()
assert_array_equal(mg.at_node['topographic__elevation'][lake1],
np.ones(9, dtype=float) * 4.)
assert_array_equal(mg.at_node['topographic__elevation'][lake2],
np.ones(4, dtype=float) * 7.)
def test_filler_inclined():
"""
Tests a flat fill into an inclined surface, with two holes.
"""
hf = SinkFiller(mg)
hf.fill_pits()
assert_array_equal(mg.at_node['topographic__elevation'][lake1],
np.ones(9, dtype=float)*4.)
assert_array_equal(mg.at_node['topographic__elevation'][lake2],
np.ones(4, dtype=float)*7.)
def test_filler_flat(sink_grid2):
"""
Very simple, though possibly degerate, case, filling a 3x3 hole up to
the flat surface surrounding it.
"""
hf = SinkFiller(sink_grid2)
hf.fill_pits()
assert_array_equal(hf._elev[sink_grid2.lake], np.ones(9, dtype=float))
assert_array_equal(
sink_grid2.at_node["topographic__elevation"][sink_grid2.lake],
np.ones(9, dtype=float),
)
def test_filler_inclined(sink_grid3):
"""
Tests a flat fill into an inclined surface, with two holes.
"""
hf = SinkFiller(sink_grid3)
hf.fill_pits()
assert_array_equal(
sink_grid3.at_node["topographic__elevation"][sink_grid3.lake1],
np.ones(9, dtype=float) * 4.,
)
assert_array_equal(
sink_grid3.at_node["topographic__elevation"][sink_grid3.lake2],
np.ones(4, dtype=float) * 7.,
)
def test_D4_filling():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
This is testing D4 without inclining the surface.
"""
hf = SinkFiller(mg, routing='D4')
hf.fill_pits()
hole1 = 4. * np.ones_like(lake1, dtype=float)
hole1[-1] += 0.001
hole2 = 7. * np.ones_like(lake2, dtype=float)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
def test_D4_filling():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
This is testing D4 without inclining the surface.
"""
hf = SinkFiller(mg, routing='D4')
hf.fill_pits()
hole1 = 4.*np.ones_like(lake1, dtype=float)
hole1[-1] += 0.001
hole2 = 7.*np.ones_like(lake2, dtype=float)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
def setup_dans_grid1():
"""
Create a 7x7 test grid with a well defined hole in it.
"""
global hf, mg
global z, r_new, r_old, A_new, A_old, s_new, depr_outlet_target
global lake, outlet, lake_code, outlet_array
mg = RasterModelGrid(7, 7, 1.)
z = np.array([
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 2.0, 2.0, 2.0, 2.0, 2.0, 0.0,
0.0, 2.0, 1.6, 1.5, 1.6, 2.0, 0.0, 0.0, 2.0, 1.7, 1.6, 1.7, 2.0, 0.0,
0.0, 2.0, 1.8, 2.0, 2.0, 2.0, 0.0, 0.0, 1.0, 0.6, 1.0, 1.0, 1.0, 0.0,
0.0, 0.0, -0.5, 0.0, 0.0, 0.0, 0.0
]).flatten()
depr_outlet_target = np.array([
XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, 30, 30,
30, XX, XX, XX, XX, 30, 30, 30, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX,
XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX, XX
]).flatten()
lake = np.array([16, 17, 18, 23, 24, 25])
outlet = 30
lake_code = 17
outlet_array = np.array([outlet])
mg.add_field('node', 'topographic__elevation', z, units='-')
hf = SinkFiller(mg)
def setup_dans_grid2():
"""
Create a 10x10 test grid with a well defined hole in it, from a flat
surface.
"""
global hf, mg
global z, depr_outlet_target
global lake, outlet, lake_code, outlet_array
lake = np.array([44, 45, 46, 54, 55, 56, 64, 65, 66])
outlet = 35 # shouldn't be needed
lake_code = 44
outlet_array = np.array([outlet])
mg = RasterModelGrid(10, 10, 1.)
z = np.ones(100, dtype=float)
z[lake] = 0.
depr_outlet_target = np.empty(100, dtype=float)
depr_outlet_target.fill(XX)
depr_outlet_target = XX # not well defined in this simplest case...?
mg.add_field('node', 'topographic__elevation', z, units='-')
hf = SinkFiller(mg)
def test_filler_inclined2():
"""
Tests an inclined fill into an inclined surface, with two holes.
"""
z_init = z.copy()
hf = SinkFiller(mg, apply_slope=True)
hf.fill_pits()
hole1 = np.array([4.00009091, 4.00018182, 4.00027273, 4.00036364,
4.00045455, 4.00054545, 4.00063636, 4.00072727,
4.00081818,])
hole2 = np.array([7.16666667, 7.33333333, 7.5, 7.66666667])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow()
assert_equal(mg.at_node['flow__sink_flag'][mg.core_nodes].sum(), 0)
def test_D4_filling():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
This is testing D4 without inclining the surface.
"""
hf = SinkFiller(mg, routing='D4')
hf.fill_pits()
hole1 = 4.*np.ones_like(lake1, dtype=float)
hole1[-1] += 0.001
hole2 = 7.*np.ones_like(lake2, dtype=float)
# np.array([34, 35, 36, 44, 45, 46, 54, 55, 56, 65, 74])
# print this to check out the funky drainage arrangement...
# print(mg.at_node['topographic__elevation'].reshape((10, 10))[3:8, 4:7])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
def test_D4_filling():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
This is testing D4 without inclining the surface.
"""
hf = SinkFiller(mg, routing='D4')
hf.fill_pits()
hole1 = 4. * np.ones_like(lake1, dtype=float)
hole1[-1] += 0.001
hole2 = 7. * np.ones_like(lake2, dtype=float)
# np.array([34, 35, 36, 44, 45, 46, 54, 55, 56, 65, 74])
# print this to check out the funky drainage arrangement...
# print(mg.at_node['topographic__elevation'].reshape((10, 10))[3:8, 4:7])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
def test_stupid_shaped_hole():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
"""
hf = SinkFiller(mg, apply_slope=True)
hf.fill_pits()
hole1 = np.array([4.00007692, 4.00015385, 4.00023077, 4.00030769,
4.00038462, 4.00046154, 4.00053846, 4.00061538,
4.00069231, 4.00076923, 4.00084615])
hole2 = np.array([7.4, 7.2, 7.6])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow()
assert_equal(mg.at_node['flow__sink_flag'][mg.core_nodes].sum(), 0)
def test_stupid_shaped_hole():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
"""
hf = SinkFiller(mg, apply_slope=True)
hf.fill_pits()
hole1 = np.array([4.00007692, 4.00015385, 4.00023077, 4.00053846,
4.00038462, 4.00030769, 4.00069231, 4.00061538,
4.00046154, 4.00076923, 4.00084615])
hole2 = np.array([7.4, 7.2, 7.6])
# print this to check out the funky drainage arrangement...
# print(mg.at_node['topographic__elevation'].reshape((10, 10))[3:8, 4:7])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow()
assert_equal(mg.at_node['flow_sinks'][mg.core_nodes].sum(), 0)
def test_stupid_shaped_hole():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
"""
hf = SinkFiller(mg, apply_slope=True)
hf.fill_pits()
hole1 = np.array([
4.00007692, 4.00015385, 4.00023077, 4.00030769, 4.00038462, 4.00046154,
4.00053846, 4.00061538, 4.00069231, 4.00076923, 4.00084615
])
hole2 = np.array([7.4, 7.2, 7.6])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow()
assert_equal(mg.at_node['flow__sink_flag'][mg.core_nodes].sum(), 0)
def test_stupid_shaped_hole():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
"""
hf = SinkFiller(mg, apply_slope=True)
hf.fill_pits()
hole1 = np.array([
4.00007692, 4.00015385, 4.00023077, 4.00053846, 4.00038462, 4.00030769,
4.00069231, 4.00061538, 4.00046154, 4.00076923, 4.00084615
])
hole2 = np.array([7.4, 7.2, 7.6])
# print this to check out the funky drainage arrangement...
# print(mg.at_node['topographic__elevation'].reshape((10, 10))[3:8, 4:7])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow()
assert_equal(mg.at_node['flow_sinks'][mg.core_nodes].sum(), 0)
def test_D4_routing():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
This is testing D4 routing.
"""
hf = SinkFiller(mg, routing='D4', apply_slope=True)
hf.fill_pits()
hole1 = np.array([4.00016667, 4.00025, 4.00033333, 4.00008333, 4.00041667,
4.0005, 4.00083333, 4.00066667, 4.00058333, 4.00075,
4.334])
hole2 = np.array([7.6, 7.2, 7.4])
# np.array([34, 35, 36, 44, 45, 46, 54, 55, 56, 65, 74])
# print this to check out the funky drainage arrangement...
# print(mg.at_node['topographic__elevation'].reshape((10, 10))[3:8, 4:7])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow(method='D4')
assert_equal(mg.at_node['flow_sinks'][mg.core_nodes].sum(), 0)
def test_D4_routing():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
This is testing D4 routing.
"""
hf = SinkFiller(mg, routing='D4', apply_slope=True)
hf.fill_pits()
hole1 = np.array([
4.00016667, 4.00025, 4.00033333, 4.00008333, 4.00041667, 4.0005,
4.00083333, 4.00066667, 4.00058333, 4.00075, 4.334
])
hole2 = np.array([7.6, 7.2, 7.4])
# np.array([34, 35, 36, 44, 45, 46, 54, 55, 56, 65, 74])
# print this to check out the funky drainage arrangement...
# print(mg.at_node['topographic__elevation'].reshape((10, 10))[3:8, 4:7])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow(method='D4')
assert_equal(mg.at_node['flow_sinks'][mg.core_nodes].sum(), 0)
def test_D4_routing():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
This is testing D4 routing.
"""
hf = SinkFiller(mg, routing='D4', apply_slope=True)
hf.fill_pits()
# hole1 = np.array([4.00016667, 4.00025, 4.00033333, 4.00008333, 4.00041667,
# 4.0005, 4.00066667, 4.00058333, 4.00075,
# 4.334])
hole1 = np.array([4.00016667, 4.00033333, 4.0005, 4.00008333, 4.00025,
4.00041667, 4.000833, 4.00066667, 4.00058333, 4.00075,
4.334])
hole2 = np.array([7.6, 7.2, 7.4])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow(method='D4')
assert_equal(mg.at_node['flow__sink_flag'][mg.core_nodes].sum(), 0)
def test_D4_routing():
"""
Tests inclined fill into a surface with a deliberately awkward shape.
This is testing D4 routing.
"""
hf = SinkFiller(mg, routing='D4', apply_slope=True)
hf.fill_pits()
# hole1 = np.array([4.00016667, 4.00025, 4.00033333, 4.00008333, 4.00041667,
# 4.0005, 4.00066667, 4.00058333, 4.00075,
# 4.334])
hole1 = np.array([
4.00016667, 4.00033333, 4.0005, 4.00008333, 4.00025, 4.00041667,
4.000833, 4.00066667, 4.00058333, 4.00075, 4.334
])
hole2 = np.array([7.6, 7.2, 7.4])
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake1],
hole1)
assert_array_almost_equal(mg.at_node['topographic__elevation'][lake2],
hole2)
fr.route_flow(method='D4')
assert_equal(mg.at_node['flow__sink_flag'][mg.core_nodes].sum(), 0)
def test_D4_routing(sink_grid5):
"""
Tests inclined fill into a surface with a deliberately awkward shape.
This is testing D4 routing.
"""
fr = FlowRouter(sink_grid5)
hf = SinkFiller(sink_grid5, routing="D4", apply_slope=True)
hf.fill_pits()
# hole1 = np.array([4.00016667, 4.00025, 4.00033333, 4.00008333, 4.00041667,
# 4.0005, 4.00066667, 4.00058333, 4.00075,
# 4.334])
hole1 = np.array(
[
4.00016667,
4.00033333,
4.0005,
4.00008333,
4.00025,
4.00041667,
4.000833,
4.00066667,
4.00058333,
4.00075,
4.334,
]
)
hole2 = np.array([7.6, 7.2, 7.4])
assert_array_almost_equal(
sink_grid5.at_node["topographic__elevation"][sink_grid5.lake1], hole1
)
assert_array_almost_equal(
sink_grid5.at_node["topographic__elevation"][sink_grid5.lake2], hole2
)
fr.route_flow(method="D4")
assert sink_grid5.at_node["flow__sink_flag"][sink_grid5.core_nodes].sum() == 0
def test_drainage_directions_change(sink_grid1):
hf = SinkFiller(sink_grid1)
lake = np.array([22, 23])
old_elevs = np.ones(49, dtype=float)
old_elevs[lake] = 0.
new_elevs = old_elevs.copy()
new_elevs[40] = 2.
cond = hf.drainage_directions_change(lake, old_elevs, new_elevs)
assert not cond
new_elevs[23] = 0.5
cond = hf.drainage_directions_change(lake, old_elevs, new_elevs)
assert not cond
new_elevs[23] = 1.
cond = hf.drainage_directions_change(lake, old_elevs, new_elevs)
assert not cond
new_elevs[23] = 1.2
cond = hf.drainage_directions_change(lake, old_elevs, new_elevs)
assert cond
