def geo_line(self, edge):
"""
Utility function to convert a node of kind edge
into a :class:`openquake.hazardlib.geo.Line` instance.
:param edge: a node describing an edge
"""
with self.context(edge.LineString.posList) as plist:
coords = split_coords_2d(~plist)
return geo.Line([geo.Point(*p) for p in coords])
def complexGeom(utype, node, filename):
if hasattr(node, 'complexFaultGeometry'):
node = node.complexFaultGeometry
_validate_complex_fault_geometry(utype, node, filename)
spacing = node["spacing"]
edges = []
for edge_node in node.nodes:
coords = split_coords_3d(~edge_node.LineString.posList)
edges.append(geo.Line([geo.Point(*p) for p in coords]))
return edges, spacing
def test_simple(self):
points = [geo.Point(0, 0), geo.Point(0.1, 0.3)]
line = geo.Line(points).resample_to_num_points(3)
expected_points = [
geo.Point(0, 0),
geo.Point(0.05, 0.15),
geo.Point(0.1, 0.3)
]
self.assertEqual(line.points, expected_points)
line = geo.Line(points).resample_to_num_points(4)
expected_points = [
geo.Point(0, 0),
geo.Point(0.0333333, 0.1),
geo.Point(0.0666666, 0.2),
geo.Point(0.1, 0.3)
]
self.assertEqual(line.points, expected_points)
def simpleGeom(utype, node, filename):
if hasattr(node, 'simpleFaultGeometry'):
node = node.simpleFaultGeometry
_validate_simple_fault_geometry(utype, node, filename)
spacing = node["spacing"]
usd, lsd, dip = (~node.upperSeismoDepth, ~node.lowerSeismoDepth,
~node.dip)
coords = split_coords_2d(~node.LineString.posList)
trace = geo.Line([geo.Point(*p) for p in coords])
return trace, usd, lsd, dip, spacing
def test_remove_adjacent_duplicates(self):
p1 = geo.Point(0.0, 0.0, 0.0)
p2 = geo.Point(0.0, 1.0, 0.0)
p3 = geo.Point(0.0, 1.0, 0.0)
p4 = geo.Point(0.0, 2.0, 0.0)
p5 = geo.Point(0.0, 3.0, 0.0)
p6 = geo.Point(0.0, 3.0, 0.0)
expected = [p1, p2, p4, p5]
self.assertEquals(expected, geo.Line([p1, p2, p3, p4, p5, p6]).points)
def _expected_complex(self):
tgr_mfd = mfd.TruncatedGRMFD(a_val=-3.5,
b_val=1.0,
min_mag=5.0,
max_mag=6.5,
bin_width=1.0)
edges = [
geo.Line([
geo.Point(-124.704, 40.363, 0.5493260E+01),
geo.Point(-124.977, 41.214, 0.4988560E+01),
geo.Point(-125.140, 42.096, 0.4897340E+01),
]),
geo.Line([
geo.Point(-124.704, 40.363, 0.5593260E+01),
geo.Point(-124.977, 41.214, 0.5088560E+01),
geo.Point(-125.140, 42.096, 0.4997340E+01),
]),
geo.Line([
geo.Point(-124.704, 40.363, 0.5693260E+01),
geo.Point(-124.977, 41.214, 0.5188560E+01),
geo.Point(-125.140, 42.096, 0.5097340E+01),
]),
geo.Line([
geo.Point(-123.829, 40.347, 0.2038490E+02),
geo.Point(-124.137, 41.218, 0.1741390E+02),
geo.Point(-124.252, 42.115, 0.1752740E+02),
]),
]
cmplx = source.ComplexFaultSource(
source_id="4",
name="Cascadia Megathrust",
tectonic_region_type="Subduction Interface",
mfd=tgr_mfd,
rupture_mesh_spacing=MESH_SPACING,
magnitude_scaling_relationship=scalerel.WC1994(),
rupture_aspect_ratio=2.0,
edges=edges,
rake=30.0)
return cmplx
def _expected_char_complex(self):
incr_mfd = mfd.EvenlyDiscretizedMFD(
min_mag=5.0, bin_width=0.1,
occurrence_rates=[
0.0010614989, 8.8291627E-4, 7.3437777E-4, 6.108288E-4,
5.080653E-4])
edges = [
geo.Line([
geo.Point(-124.704, 40.363, 0.5493260E+01),
geo.Point(-124.977, 41.214, 0.4988560E+01),
geo.Point(-125.140, 42.096, 0.4897340E+01),
]),
geo.Line([
geo.Point(-124.704, 40.363, 0.5593260E+01),
geo.Point(-124.977, 41.214, 0.5088560E+01),
geo.Point(-125.140, 42.096, 0.4997340E+01),
]),
geo.Line([
geo.Point(-124.704, 40.363, 0.5693260E+01),
geo.Point(-124.977, 41.214, 0.5188560E+01),
geo.Point(-125.140, 42.096, 0.5097340E+01),
]),
geo.Line([
geo.Point(-123.829, 40.347, 0.2038490E+02),
geo.Point(-124.137, 41.218, 0.1741390E+02),
geo.Point(-124.252, 42.115, 0.1752740E+02),
])]
complex_surface = geo.ComplexFaultSurface.from_fault_data(
edges, self.complex_fault_mesh_spacing)
char = source.CharacteristicFaultSource(
source_id="6",
name="characteristic source, complex fault",
tectonic_region_type="Volcanic",
mfd=incr_mfd,
surface=complex_surface,
rake=60.0,
temporal_occurrence_model=PoissonTOM(50.0))
char.num_ruptures = char.count_ruptures()
return char
def geo_lines(self, edges):
"""
Utility function to convert a list of edges into a list of
:class:`openquake.hazardlib.geo.Line` instances.
:param edge: a node describing an edge
"""
lines = []
for edge in edges:
with context(self.fname, edge):
coords = split_coords_3d(~edge.LineString.posList)
lines.append(geo.Line([geo.Point(*p) for p in coords]))
return lines
def test_resample_2(self):
"""
Line made of 3 points (aligned in the same direction) equally spaced
(spacing equal to 10 km). The resampled line contains 2 points
(with spacing of 30 km) consistent with the number of points
as predicted by n = round(20 / 30) + 1.
"""
p1 = geo.Point(0.0, 0.0)
p2 = geo.Point(0.0, 0.089932202939476777)
p3 = geo.Point(0.0, 0.1798644058789465)
self.assertEqual(2, len(geo.Line([p1, p2, p3]).resample(30.0)))
def _validate_simple_fault_geometry(utype, node, filename):
try:
coords = split_coords_2d(~node.LineString.posList)
trace = geo.Line([geo.Point(*p) for p in coords])
except ValueError:
# If the geometry cannot be created then use the LogicTreeError
# to point the user to the incorrect node. Hence, if trace is
# compiled successfully then len(trace) is True, otherwise it is
# False
trace = []
if len(trace):
return
raise LogicTreeError(node, filename,
"'simpleFaultGeometry' node is not valid")
def _complex_to_hazardlib(src, mesh_spacing, bin_width):
"""Convert a NRML complex fault source to the HazardLib equivalent.
See :mod:`openquake.nrmllib.models` and :mod:`openquake.hazardlib.source`.
:param src:
:class:`openquake.nrmllib.models.ComplexFaultRuptureModel` instance.
:param float mesh_spacing:
Rupture mesh spacing, in km.
:param float bin_width:
Truncated Gutenberg-Richter MFD (Magnitude Frequency Distribution) bin
width.
:returns:
The HazardLib representation of the input source.
"""
edges_wkt = []
edges_wkt.append(src.geometry.top_edge_wkt)
edges_wkt.extend(src.geometry.int_edges)
edges_wkt.append(src.geometry.bottom_edge_wkt)
edges = []
for edge in edges_wkt:
shapely_line = wkt.loads(edge)
line = geo.Line([geo.Point(*x) for x in shapely_line.coords])
edges.append(line)
mf_dist = _mfd_to_hazardlib(src.mfd, bin_width)
msr = scalerel.get_available_magnitude_scalerel()[src.mag_scale_rel]()
cmplx = source.ComplexFaultSource(
source_id=src.id,
name=src.name,
tectonic_region_type=src.trt,
mfd=mf_dist,
rupture_mesh_spacing=mesh_spacing,
magnitude_scaling_relationship=msr,
rupture_aspect_ratio=src.rupt_aspect_ratio,
edges=edges,
rake=src.rake,
)
return cmplx
def _validate_complex_fault_geometry(utype, node, filename):
# NB: if the geometry does not conform to the Aki & Richards convention
# this will not be verified here, but will raise an error when the surface
# is created
valid_edges = []
for edge_node in node.nodes:
try:
coords = split_coords_3d(edge_node.LineString.posList.text)
edge = geo.Line([geo.Point(*p) for p in coords])
except ValueError:
# See use of validation error in simple geometry case
# The node is valid if all of the edges compile correctly
edge = []
if len(edge):
valid_edges.append(True)
else:
valid_edges.append(False)
if node["spacing"] and all(valid_edges):
return
raise LogicTreeError(node, filename,
"'complexFaultGeometry' node is not valid")
def _complex_to_hazardlib(self, src):
"""Convert a NRML complex fault source to the HazardLib equivalent.
See :mod:`openquake.nrmllib.models` and
:mod:`openquake.hazardlib.source`.
:param src:
:class:`openquake.nrmllib.models.ComplexFaultRuptureModel` instance
:returns:
The HazardLib representation of the input source.
"""
edges_wkt = []
edges_wkt.append(src.geometry.top_edge_wkt)
edges_wkt.extend(src.geometry.int_edges)
edges_wkt.append(src.geometry.bottom_edge_wkt)
edges = []
for edge in edges_wkt:
shapely_line = wkt.loads(edge)
line = geo.Line([geo.Point(*x) for x in shapely_line.coords])
edges.append(line)
mf_dist = self._mfd_to_hazardlib(src.mfd)
msr = scalerel.get_available_magnitude_scalerel()[src.mag_scale_rel]()
cmplx = source.ComplexFaultSource(
source_id=src.id,
name=src.name,
tectonic_region_type=src.trt,
mfd=mf_dist,
rupture_mesh_spacing=self.rupture_mesh_spacing,
magnitude_scaling_relationship=msr,
rupture_aspect_ratio=src.rupt_aspect_ratio,
edges=edges,
rake=src.rake,
temporal_occurrence_model=self.default_tom,
)
return cmplx
def _expected_char_simple(self):
tgr_mfd = mfd.TruncatedGRMFD(
a_val=-3.5, b_val=1.0, min_mag=5.0, max_mag=6.5, bin_width=1.0)
fault_trace = geo.Line([geo.Point(-121.82290, 37.73010),
geo.Point(-122.03880, 37.87710)])
surface = geo.SimpleFaultSurface.from_fault_data(
fault_trace=fault_trace,
upper_seismogenic_depth=10.0,
lower_seismogenic_depth=20.0,
dip=45.0,
mesh_spacing=self.rupture_mesh_spacing)
char = source.CharacteristicFaultSource(
source_id="5",
name="characteristic source, simple fault",
tectonic_region_type="Volcanic",
mfd=tgr_mfd,
surface=surface,
rake=30.0,
temporal_occurrence_model=PoissonTOM(50.))
return char
def _simple_to_hazardlib(src, mesh_spacing, bin_width):
"""Convert a NRML simple fault source to the HazardLib equivalent.
See :mod:`openquake.nrmllib.models` and :mod:`openquake.hazardlib.source`.
:param src:
:class:`openquake.nrmllib.models.SimpleFaultRuptureModel` instance.
:param float mesh_spacing:
Rupture mesh spacing, in km.
:param float bin_width:
Truncated Gutenberg-Richter MFD (Magnitude Frequency Distribution) bin
width.
:returns:
The HazardLib representation of the input source.
"""
shapely_line = wkt.loads(src.geometry.wkt)
fault_trace = geo.Line([geo.Point(*x) for x in shapely_line.coords])
mf_dist = _mfd_to_hazardlib(src.mfd, bin_width)
msr = scalerel.get_available_magnitude_scalerel()[src.mag_scale_rel]()
simple = source.SimpleFaultSource(
source_id=src.id,
name=src.name,
tectonic_region_type=src.trt,
mfd=mf_dist,
rupture_mesh_spacing=mesh_spacing,
magnitude_scaling_relationship=msr,
rupture_aspect_ratio=src.rupt_aspect_ratio,
upper_seismogenic_depth=src.geometry.upper_seismo_depth,
lower_seismogenic_depth=src.geometry.lower_seismo_depth,
fault_trace=fault_trace,
dip=src.geometry.dip,
rake=src.rake)
return simple
def _characteristic_to_hazardlib(src, mesh_spacing, bin_width):
"""
Convert a NRML characteristic fault source to the HazardLib equivalent.
The surface of a characteristic fault source can be one of the following:
* simple fault
* complex fault
* one or more planar surfaces
See :mod:`openquake.nrmllib.models` and :mod:`openquake.hazardlib.source`.
:param src:
:class:`openquake.nrmllib.models.CharacteristicSource` instance.
:param float mesh_spacing:
Rupture mesh spacing, in km.
:param float bin_width:
Truncated Gutenberg-Richter MFD (Magnitude Frequency Distribution) bin
width.
:returns:
The HazardLib representation of the input source.
"""
mf_dist = _mfd_to_hazardlib(src.mfd, bin_width)
if isinstance(src.surface, nrml_models.SimpleFaultGeometry):
shapely_line = wkt.loads(src.surface.wkt)
fault_trace = geo.Line([geo.Point(*x) for x in shapely_line.coords])
surface = geo.SimpleFaultSurface.from_fault_data(
fault_trace, src.surface.upper_seismo_depth,
src.surface.lower_seismo_depth, src.surface.dip, mesh_spacing)
elif isinstance(src.surface, nrml_models.ComplexFaultGeometry):
edges_wkt = []
edges_wkt.append(src.surface.top_edge_wkt)
edges_wkt.extend(src.surface.int_edges)
edges_wkt.append(src.surface.bottom_edge_wkt)
edges = []
for edge in edges_wkt:
shapely_line = wkt.loads(edge)
line = geo.Line([geo.Point(*x) for x in shapely_line.coords])
edges.append(line)
surface = geo.ComplexFaultSurface.from_fault_data(edges, mesh_spacing)
else:
# A collection of planar surfaces
planar_surfaces = []
for planar_surface in src.surface:
kwargs = planar_surface.__dict__
kwargs.update(dict(mesh_spacing=mesh_spacing))
planar_surfaces.append(geo.PlanarSurface(**kwargs))
surface = geo.MultiSurface(planar_surfaces)
char = source.CharacteristicFaultSource(source_id=src.id,
name=src.name,
tectonic_region_type=src.trt,
mfd=mf_dist,
surface=surface,
rake=src.rake)
return char
def test(self):
line = geo.Line([geo.Point(0, 0), geo.Point(0, 1), geo.Point(1, 2)])
length = line.get_length()
expected_length = line.points[0].distance(line.points[1]) \
+ line.points[1].distance(line.points[2])
self.assertEqual(length, expected_length)
def test_hangup(self):
p1 = geo.Point(0.00899322032502, 0., 0.)
p2 = geo.Point(0.01798644058385, 0., 1.)
p3 = geo.Point(0.02697966087241, 0., 2.)
line = geo.Line([p1, p2, p3]).resample_to_num_points(3)
self.assertEqual(line.points, [p1, p2, p3])
def test_line_of_one_point(self):
line = geo.Line([geo.Point(0, 0)])
self.assertRaises(AssertionError, line.resample_to_num_points, 10)