def test_EdgeRupture_vs_QuadRupture():
# Sites stuff
sites = Sites.fromCenter(-122.15, 37.15, 1.5, 1.5, 0.01, 0.01)
sm_dict = sites._GeoDict
west = sm_dict.xmin
east = sm_dict.xmax
south = sm_dict.ymin
north = sm_dict.ymax
nx = sm_dict.nx
ny = sm_dict.ny
lats = np.linspace(north, south, ny)
lons = np.linspace(west, east, nx)
lon, lat = np.meshgrid(lons, lats)
dep = np.zeros_like(lon)
# Construct QuadRupture
xp0 = np.array([-122.0, -122.5])
yp0 = np.array([37.1, 37.4])
xp1 = np.array([-121.7, -122.3])
yp1 = np.array([37.2, 37.2])
zp = np.array([0, 6])
widths = np.array([30, 20])
dips = np.array([30, 40])
origin = Origin({"lat": 0, "lon": 0, "depth": 0, "mag": 7.2, "id": ""})
qrup = QuadRupture.fromTrace(xp0, yp0, xp1, yp1, zp, widths, dips, origin)
rrup_q = qrup.computeRrup(lon, lat, dep)
rjb_q = qrup.computeRjb(lon, lat, dep)
# Construct equivalent EdgeRupture
toplons = np.array([-122.0, -121.7, -122.5, -122.3])
toplats = np.array([37.1, 37.2, 37.4, 37.2])
topdeps = np.array([0, 0, 6, 6])
botlons = np.array([-121.886864, -121.587568, -122.635467, -122.435338])
botlats = np.array([36.884527, 36.984246, 37.314035, 37.114261])
botdeps = np.array([15.0000, 14.9998, 18.8558, 18.8559])
group_index = [0, 0, 1, 1]
erup = EdgeRupture.fromArrays(toplons, toplats, topdeps, botlons, botlats, botdeps, origin, group_index)
rrup_e = erup.computeRrup(lon, lat, dep)
rjb_e = erup.computeRjb(lon, lat, dep)
# Check that QuadRupture and EdgeRupture give the same result
# (we check the absolute values of QuadRupture elsewhere)
np.testing.assert_allclose(rrup_e, rrup_q, atol=0.35)
np.testing.assert_allclose(rjb_e, rjb_q, atol=0.35)
def test_EdgeRupture():
# Rupture requires an origin even when not used:
origin = Origin({'id':'test','lat':0,'lon':0,'depth':5.0,'mag':7.0})
file = 'tests/data/cascadia.json'
rup = read_rupture_file(origin, file)
# Force read Northridge as EdgeRupture
file = 'tests/data/eventdata/northridge/northridge_fault.txt'
d = text_to_json(file)
rupt = EdgeRupture(d, origin)
strike = rupt.getStrike()
np.testing.assert_allclose(strike, 121.97, atol=0.01)
dip = rupt.getDip()
np.testing.assert_allclose(dip, 40.12, atol=0.01)
L = rupt.getLength()
np.testing.assert_allclose(L, 17.99, atol=0.01)
W = rupt.getWidth()
np.testing.assert_allclose(W, 23.92, atol=0.01)
ztor = rupt.getDepthToTop()
np.testing.assert_allclose(ztor, 5, atol=0.01)
# And again for the same vertices but reversed order
file = 'tests/data/eventdata/northridge/northridge_fixed_fault.txt'
d = text_to_json(file)
rupt = EdgeRupture(d, origin)
strike = rupt.getStrike()
np.testing.assert_allclose(strike, 121.97, atol=0.01)
dip = rupt.getDip()
np.testing.assert_allclose(dip, 40.12, atol=0.01)
L = rupt.getLength()
np.testing.assert_allclose(L, 17.99, atol=0.01)
W = rupt.getWidth()
np.testing.assert_allclose(W, 23.92, atol=0.01)
ztor = rupt.getDepthToTop()
np.testing.assert_allclose(ztor, 5, atol=0.01)