def test_area_with_tgr_mfd(self): trunc_mfd = mfd.TruncatedGRMFD(a_val=2.1, b_val=4.2, bin_width=0.1, min_mag=6.55, max_mag=8.91) np1 = geo.NodalPlane(strike=0.0, dip=90.0, rake=0.0) np2 = geo.NodalPlane(strike=90.0, dip=45.0, rake=90.0) npd = pmf.PMF([(0.3, np1), (0.7, np2)]) hd = pmf.PMF([(0.5, 4.0), (0.5, 8.0)]) polygon = geo.Polygon([ geo.Point(-122.5, 37.5), geo.Point(-121.5, 37.5), geo.Point(-121.5, 38.5), geo.Point(-122.5, 38.5) ]) area = source.AreaSource( source_id="1", name="source A", tectonic_region_type="Active Shallow Crust", mfd=trunc_mfd, rupture_mesh_spacing=self.rupture_mesh_spacing, magnitude_scaling_relationship=scalerel.PeerMSR(), rupture_aspect_ratio=1.0, upper_seismogenic_depth=0.0, lower_seismogenic_depth=10.0, nodal_plane_distribution=npd, hypocenter_distribution=hd, polygon=polygon, area_discretization=10, temporal_occurrence_model=PoissonTOM(50.)) actual = list(source.area_to_point_sources(area)) self.assertEqual(len(actual), 96) # expected 96 points self.assertAlmostEqual(actual[0].mfd.a_val, 0.1177287669604317)
def convert_areaSource(self, node): """ Convert the given node into an area source object. :param node: a node with tag areaGeometry :returns: a :class:`openquake.hazardlib.source.AreaSource` instance """ geom = node.areaGeometry coords = split_coords_2d(~geom.Polygon.exterior.LinearRing.posList) polygon = geo.Polygon([geo.Point(*xy) for xy in coords]) msr = valid.SCALEREL[~node.magScaleRel]() area_discretization = geom.attrib.get('discretization', self.area_source_discretization) if area_discretization is None: raise ValueError( 'The source %r has no `discretization` parameter and the job.' 'ini file has no `area_source_discretization` parameter either' % node['id']) return source.AreaSource( source_id=node['id'], name=node['name'], tectonic_region_type=node.attrib.get('tectonicRegion'), mfd=self.convert_mfdist(node), rupture_mesh_spacing=self.rupture_mesh_spacing, magnitude_scaling_relationship=msr, rupture_aspect_ratio=~node.ruptAspectRatio, upper_seismogenic_depth=~geom.upperSeismoDepth, lower_seismogenic_depth=~geom.lowerSeismoDepth, nodal_plane_distribution=self.convert_npdist(node), hypocenter_distribution=self.convert_hddist(node), polygon=polygon, area_discretization=area_discretization, temporal_occurrence_model=self.get_tom(node))
def _expected_area(self): incr_mfd = mfd.EvenlyDiscretizedMFD( min_mag=6.55, bin_width=0.1, occurrence_rates=[ 0.0010614989, 8.8291627E-4, 7.3437777E-4, 6.108288E-4, 5.080653E-4]) np1 = geo.NodalPlane(strike=0.0, dip=90.0, rake=0.0) np2 = geo.NodalPlane(strike=90.0, dip=45.0, rake=90.0) npd = pmf.PMF([(0.3, np1), (0.7, np2)]) hd = pmf.PMF([(0.5, 4.0), (0.5, 8.0)]) polygon = geo.Polygon( [geo.Point(-122.5, 37.5), geo.Point(-121.5, 37.5), geo.Point(-121.5, 38.5), geo.Point(-122.5, 38.5)]) area = source.AreaSource( source_id="1", name="Quito", tectonic_region_type="Active Shallow Crust", mfd=incr_mfd, rupture_mesh_spacing=self.rupture_mesh_spacing, magnitude_scaling_relationship=scalerel.PeerMSR(), rupture_aspect_ratio=1.5, upper_seismogenic_depth=0.0, lower_seismogenic_depth=10.0, nodal_plane_distribution=npd, hypocenter_distribution=hd, polygon=polygon, area_discretization=2, temporal_occurrence_model=PoissonTOM(50.)) area.num_ruptures = area.count_ruptures() return area
def test_area_with_incr_mfd(self): incr_mfd = mfd.EvenlyDiscretizedMFD( min_mag=6.55, bin_width=0.1, occurrence_rates=[ 0.0010614989, 8.8291627E-4, 7.3437777E-4, 6.108288E-4, 5.080653E-4]) np1 = geo.NodalPlane(strike=0.0, dip=90.0, rake=0.0) np2 = geo.NodalPlane(strike=90.0, dip=45.0, rake=90.0) npd = pmf.PMF([(0.3, np1), (0.7, np2)]) hd = pmf.PMF([(0.5, 4.0), (0.5, 8.0)]) polygon = geo.Polygon( [geo.Point(-122.5, 37.5), geo.Point(-121.5, 37.5), geo.Point(-121.5, 38.5), geo.Point(-122.5, 38.5)]) area = source.AreaSource( source_id="1", name="source A", tectonic_region_type="Active Shallow Crust", mfd=incr_mfd, rupture_mesh_spacing=self.rupture_mesh_spacing, magnitude_scaling_relationship=scalerel.PeerMSR(), rupture_aspect_ratio=1.0, upper_seismogenic_depth=0.0, lower_seismogenic_depth=10.0, nodal_plane_distribution=npd, hypocenter_distribution=hd, polygon=polygon, area_discretization=10, temporal_occurrence_model=PoissonTOM(50.0), ) actual = list(area) self.assertEqual(len(actual), 96) # expected 96 points assert_allclose( actual[0].mfd.occurrence_rates, [1.10572802083e-05, 9.197044479166666e-06, 7.6497684375e-06, 6.3627999999999995e-06, 5.292346875e-06])
def _area_to_hazardlib(src, mesh_spacing, bin_width, area_src_disc): """Convert a NRML area source to the HazardLib equivalent. See :mod:`openquake.nrmllib.models` and :mod:`openquake.hazardlib.source`. :param src: :class:`openquake.nrmllib.models.PointSource` instance. :param float mesh_spacing: Rupture mesh spacing, in km. :param float bin_width: Truncated Gutenberg-Richter MFD (Magnitude Frequency Distribution) bin width. :param float area_src_disc: Area source discretization, in km. Applies only to area sources. :returns: The HazardLib representation of the input source. """ shapely_polygon = wkt.loads(src.geometry.wkt) hazardlib_polygon = geo.Polygon( # We ignore the last coordinate in the sequence here, since it is a # duplicate of the first. hazardlib will close the loop for us. [geo.Point(*x) for x in list(shapely_polygon.exterior.coords)[:-1]]) mf_dist = _mfd_to_hazardlib(src.mfd, bin_width) # nodal plane distribution: npd = pmf.PMF([(x.probability, geo.NodalPlane(strike=x.strike, dip=x.dip, rake=x.rake)) for x in src.nodal_plane_dist]) # hypocentral depth distribution: hd = pmf.PMF([(x.probability, x.depth) for x in src.hypo_depth_dist]) msr = scalerel.get_available_magnitude_scalerel()[src.mag_scale_rel]() area = source.AreaSource( 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, nodal_plane_distribution=npd, hypocenter_distribution=hd, polygon=hazardlib_polygon, area_discretization=area_src_disc) return area