# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright (C) 2015-2017 GEM Foundation
#
# OpenQuake is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# OpenQuake is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with OpenQuake. If not, see <http://www.gnu.org/licenses/>.
from __future__ import division
import math
import copy
import operator
import collections
import numpy
from openquake.baselib.general import groupby
from openquake.baselib.node import context, striptag, Node
from openquake.hazardlib import geo, mfd, pmf, source
from openquake.hazardlib.tom import PoissonTOM
from openquake.hazardlib import valid, InvalidFile
MINWEIGHT = 200 # tuned by M. Simionato
U32 = numpy.uint32
U64 = numpy.uint64
F32 = numpy.float32
event_dt = numpy.dtype([('eid', U64), ('ses', U32), ('sample', U32)])
[docs]class SourceGroup(collections.Sequence):
"""
A container for the following parameters:
:param str trt:
the tectonic region type all the sources belong to
:param list sources:
a list of hazardlib source objects
:param name:
The name of the group
:param src_interdep:
A string specifying if the sources in this cluster are independent or
mutually exclusive
:param rup_indep:
A string specifying if the ruptures within each source of the cluster
are independent or mutually exclusive
:param weights:
A dictionary whose keys are the source IDs of the cluster and the
values are the weights associated with each source
:param min_mag:
the minimum magnitude among the given sources
:param max_mag:
the maximum magnitude among the given sources
:param id:
an optional numeric ID (default None) useful to associate
the model to a database object
:param eff_ruptures:
the number of ruptures contained in the group; if -1,
the number is unknown and has to be computed by using
get_set_num_ruptures
"""
@classmethod
[docs] def collect(cls, sources):
"""
:param sources: dictionaries with a key 'tectonicRegion'
:returns: an ordered list of SourceGroup instances
"""
source_stats_dict = {}
for src in sources:
trt = src['tectonicRegion']
if trt not in source_stats_dict:
source_stats_dict[trt] = SourceGroup(trt)
sg = source_stats_dict[trt]
if not sg.sources:
# we append just one source per SourceGroup, so that
# the memory occupation is insignificant
sg.sources.append(src)
# return SourceGroups, ordered by TRT string
return sorted(source_stats_dict.values())
@property
def srcs_weights(self):
"""
The weights of the underlying sources. If not specified, returns
an array of 1s.
"""
if self._srcs_weights is None:
return list(numpy.ones(len(self.sources)))
return self._srcs_weights
def __init__(self, trt, sources=None, name=None, src_interdep='indep',
rup_interdep='indep', srcs_weights=None, grp_probability=None,
min_mag=None, max_mag=None, id=0, eff_ruptures=-1):
# checks
self.trt = trt
self._check_init_variables(sources, name, src_interdep, rup_interdep,
srcs_weights)
self.sources = []
self.name = name
self.src_interdep = src_interdep
self.rup_interdep = rup_interdep
self._srcs_weights = srcs_weights
self.grp_probability = grp_probability
self.min_mag = min_mag
self.max_mag = max_mag
self.id = id
if sources:
for src in sorted(sources, key=operator.attrgetter('source_id')):
self.update(src)
self.source_model = None # to be set later, in CompositionInfo
self.eff_ruptures = eff_ruptures # set later nby get_rlzs_assoc
def _check_init_variables(self, src_list, name, src_interdep, rup_interdep,
srcs_weights):
if src_interdep not in ('indep', 'mutex'):
raise ValueError('source interdependence incorrect %s ' %
src_interdep)
if rup_interdep not in ('indep', 'mutex'):
raise ValueError('rupture interdependence incorrect %s ' %
rup_interdep)
# check TRT
if src_list: # can be None
for src in src_list:
assert src.tectonic_region_type == self.trt, (
src.tectonic_region_type, self.trt)
# ask Marco: should we add a check on the srcs_weights?
[docs] def tot_ruptures(self):
return sum(src.num_ruptures for src in self.sources)
[docs] def update(self, src):
"""
Update the attributes sources, min_mag, max_mag
according to the given source.
:param src:
an instance of :class:
`openquake.hazardlib.source.base.BaseSeismicSource`
"""
assert src.tectonic_region_type == self.trt, (
src.tectonic_region_type, self.trt)
self.sources.append(src)
min_mag, max_mag = src.get_min_max_mag()
prev_min_mag = self.min_mag
if prev_min_mag is None or min_mag < prev_min_mag:
self.min_mag = min_mag
prev_max_mag = self.max_mag
if prev_max_mag is None or max_mag > prev_max_mag:
self.max_mag = max_mag
def __repr__(self):
return '<%s #%d %s, %d source(s), %d effective rupture(s)>' % (
self.__class__.__name__, self.id, self.trt,
len(self.sources), self.eff_ruptures)
def __lt__(self, other):
"""
Make sure there is a precise ordering of SourceGroup objects.
Objects with less sources are put first; in case the number
of sources is the same, use lexicographic ordering on the trts
"""
num_sources = len(self.sources)
other_sources = len(other.sources)
if num_sources == other_sources:
return self.trt < other.trt
return num_sources < other_sources
def __getitem__(self, i):
return self.sources[i]
def __iter__(self):
return iter(self.sources)
def __len__(self):
return len(self.sources)
[docs]def get_set_num_ruptures(src):
"""
Extract the number of ruptures and set it
"""
if not src.num_ruptures:
src.num_ruptures = src.count_ruptures()
return src.num_ruptures
[docs]def area_to_point_sources(area_src):
"""
Split an area source into a generator of point sources.
MFDs will be rescaled appropriately for the number of points in the area
mesh.
:param area_src:
:class:`openquake.hazardlib.source.AreaSource`
"""
mesh = area_src.polygon.discretize(area_src.area_discretization)
num_points = len(mesh)
area_mfd = area_src.mfd
if isinstance(area_mfd, mfd.TruncatedGRMFD):
new_mfd = mfd.TruncatedGRMFD(
a_val=area_mfd.a_val - math.log10(num_points),
b_val=area_mfd.b_val,
bin_width=area_mfd.bin_width,
min_mag=area_mfd.min_mag,
max_mag=area_mfd.max_mag)
elif isinstance(area_mfd, mfd.EvenlyDiscretizedMFD):
new_occur_rates = [x / num_points for x in area_mfd.occurrence_rates]
new_mfd = mfd.EvenlyDiscretizedMFD(
min_mag=area_mfd.min_mag,
bin_width=area_mfd.bin_width,
occurrence_rates=new_occur_rates)
elif isinstance(area_mfd, mfd.ArbitraryMFD):
new_occur_rates = [x / num_points for x in area_mfd.occurrence_rates]
new_mfd = mfd.ArbitraryMFD(
magnitudes=area_mfd.magnitudes,
occurrence_rates=new_occur_rates)
elif isinstance(area_mfd, mfd.YoungsCoppersmith1985MFD):
new_mfd = mfd.YoungsCoppersmith1985MFD.from_characteristic_rate(
area_mfd.min_mag, area_mfd.b_val, area_mfd.char_mag,
area_mfd.char_rate / num_points, area_mfd.bin_width)
else:
raise TypeError('Unknown MFD: %s' % area_mfd)
for i, (lon, lat) in enumerate(zip(mesh.lons, mesh.lats)):
pt = source.PointSource(
# Generate a new ID and name
source_id='%s:%s' % (area_src.source_id, i),
name='%s:%s' % (area_src.name, i),
tectonic_region_type=area_src.tectonic_region_type,
mfd=new_mfd,
rupture_mesh_spacing=area_src.rupture_mesh_spacing,
magnitude_scaling_relationship=
area_src.magnitude_scaling_relationship,
rupture_aspect_ratio=area_src.rupture_aspect_ratio,
upper_seismogenic_depth=area_src.upper_seismogenic_depth,
lower_seismogenic_depth=area_src.lower_seismogenic_depth,
location=geo.Point(lon, lat),
nodal_plane_distribution=area_src.nodal_plane_distribution,
hypocenter_distribution=area_src.hypocenter_distribution,
temporal_occurrence_model=area_src.temporal_occurrence_model)
pt.num_ruptures = pt.count_ruptures()
yield pt
def _split_start_stop(n, chunksize):
start = 0
while start < n:
stop = start + chunksize
yield start, min(stop, n)
start = stop
# this is only called on heavy sources
[docs]def split_fault_source(src):
"""
Generator splitting a fault source into several fault sources.
:param src:
an instance of :class:`openquake.hazardlib.source.base.SeismicSource`
"""
# NB: the splitting is tricky; if you don't split, you will not
# take advantage of the multiple cores; if you split too much,
# the data transfer will kill you, i.e. multiprocessing/celery
# will fail to transmit to the workers the generated sources.
i = 0
splitlist = []
mag_rates = [(mag, rate) for (mag, rate) in
src.mfd.get_annual_occurrence_rates() if rate]
if len(mag_rates) > 1: # split by magnitude bin
for mag, rate in mag_rates:
new_src = copy.copy(src)
new_src.source_id = '%s:%s' % (src.source_id, i)
new_src.mfd = mfd.ArbitraryMFD([mag], [rate])
new_src.num_ruptures = new_src.count_ruptures()
i += 1
splitlist.append(new_src)
elif hasattr(src, 'start'): # split by slice of ruptures
for start, stop in _split_start_stop(src.num_ruptures, MINWEIGHT):
new_src = copy.copy(src)
new_src.start = start
new_src.stop = stop
new_src.num_ruptures = stop - start
new_src.source_id = '%s:%s' % (src.source_id, i)
i += 1
splitlist.append(new_src)
else:
splitlist.append(src)
return splitlist
[docs]def split_source(src):
"""
Split an area source into point sources and a fault sources into
smaller fault sources.
:param src:
an instance of :class:`openquake.hazardlib.source.base.SeismicSource`
"""
if hasattr(src, '__iter__'): # multipoint source
for s in src:
s.src_group_id = src.src_group_id
s.num_ruptures = s.count_ruptures()
yield s
elif isinstance(src, source.AreaSource):
for s in area_to_point_sources(src):
s.src_group_id = src.src_group_id
yield s
elif isinstance(
src, (source.SimpleFaultSource, source.ComplexFaultSource)):
for s in split_fault_source(src):
s.src_group_id = src.src_group_id
yield s
else:
# characteristic and nonparametric sources are not split
# since they are small anyway
yield src
[docs]def split_coords_2d(seq):
"""
:param seq: a flat list with lons and lats
:returns: a validated list of pairs (lon, lat)
>>> split_coords_2d([1.1, 2.1, 2.2, 2.3])
[(1.1, 2.1), (2.2, 2.3)]
"""
lons, lats = [], []
for i, el in enumerate(seq):
if i % 2 == 0:
lons.append(valid.longitude(el))
elif i % 2 == 1:
lats.append(valid.latitude(el))
return list(zip(lons, lats))
[docs]def split_coords_3d(seq):
"""
:param seq: a flat list with lons, lats and depths
:returns: a validated list of (lon, lat, depths) triplets
>>> split_coords_3d([1.1, 2.1, 0.1, 2.3, 2.4, 0.1])
[(1.1, 2.1, 0.1), (2.3, 2.4, 0.1)]
"""
lons, lats, depths = [], [], []
for i, el in enumerate(seq):
if i % 3 == 0:
lons.append(valid.longitude(el))
elif i % 3 == 1:
lats.append(valid.latitude(el))
elif i % 3 == 2:
depths.append(valid.depth(el))
return list(zip(lons, lats, depths))
[docs]class RuptureConverter(object):
"""
Convert ruptures from nodes into Hazardlib ruptures.
"""
fname = None # should be set externally
def __init__(self, rupture_mesh_spacing, complex_fault_mesh_spacing=None):
self.rupture_mesh_spacing = rupture_mesh_spacing
self.complex_fault_mesh_spacing = (
complex_fault_mesh_spacing or rupture_mesh_spacing)
[docs] def get_mag_rake_hypo(self, node):
with context(self.fname, node):
mag = ~node.magnitude
rake = ~node.rake
h = node.hypocenter
hypocenter = geo.Point(h['lon'], h['lat'], h['depth'])
return mag, rake, hypocenter
[docs] def convert_node(self, node):
"""
Convert the given rupture node into a hazardlib rupture, depending
on the node tag.
:param node: a node representing a rupture
"""
convert = getattr(self, 'convert_' + striptag(node.tag))
return convert(node)
[docs] 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 context(self.fname, edge.LineString.posList) as plist:
coords = split_coords_2d(~plist)
return geo.Line([geo.Point(*p) for p in coords])
[docs] 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
[docs] def geo_planar(self, surface):
"""
Utility to convert a PlanarSurface node with subnodes
topLeft, topRight, bottomLeft, bottomRight into a
:class:`openquake.hazardlib.geo.PlanarSurface` instance.
:param surface: PlanarSurface node
"""
with context(self.fname, surface):
tl = surface.topLeft
top_left = geo.Point(tl['lon'], tl['lat'], tl['depth'])
tr = surface.topRight
top_right = geo.Point(tr['lon'], tr['lat'], tr['depth'])
bl = surface.bottomLeft
bottom_left = geo.Point(bl['lon'], bl['lat'], bl['depth'])
br = surface.bottomRight
bottom_right = geo.Point(br['lon'], br['lat'], br['depth'])
return geo.PlanarSurface.from_corner_points(
self.rupture_mesh_spacing,
top_left, top_right, bottom_right, bottom_left)
[docs] def convert_surfaces(self, surface_nodes):
"""
Utility to convert a list of surface nodes into a single hazardlib
surface. There are three possibilities:
1. there is a single simpleFaultGeometry node; returns a
:class:`openquake.hazardlib.geo.simpleFaultSurface` instance
2. there is a single complexFaultGeometry node; returns a
:class:`openquake.hazardlib.geo.complexFaultSurface` instance
3. there is a list of PlanarSurface nodes; returns a
:class:`openquake.hazardlib.geo.MultiSurface` instance
:param surface_nodes: surface nodes as just described
"""
surface_node = surface_nodes[0]
if surface_node.tag.endswith('simpleFaultGeometry'):
surface = geo.SimpleFaultSurface.from_fault_data(
self.geo_line(surface_node),
~surface_node.upperSeismoDepth,
~surface_node.lowerSeismoDepth,
~surface_node.dip,
self.rupture_mesh_spacing)
elif surface_node.tag.endswith('complexFaultGeometry'):
surface = geo.ComplexFaultSurface.from_fault_data(
self.geo_lines(surface_node),
self.complex_fault_mesh_spacing)
elif surface_node.tag.endswith('griddedSurface'):
with context(self.fname, surface_node):
coords = split_coords_3d(~surface_node.posList)
points = [geo.Point(*p) for p in coords]
surface = geo.GriddedSurface.from_points_list(points)
else: # a collection of planar surfaces
planar_surfaces = list(map(self.geo_planar, surface_nodes))
surface = geo.MultiSurface(planar_surfaces)
return surface
[docs] def convert_simpleFaultRupture(self, node):
"""
Convert a simpleFaultRupture node.
:param node: the rupture node
"""
mag, rake, hypocenter = self.get_mag_rake_hypo(node)
with context(self.fname, node):
surfaces = [node.simpleFaultGeometry]
rupt = source.rupture.BaseRupture(
mag=mag, rake=rake, tectonic_region_type=None,
hypocenter=hypocenter,
surface=self.convert_surfaces(surfaces),
source_typology=source.SimpleFaultSource)
return rupt
[docs] def convert_complexFaultRupture(self, node):
"""
Convert a complexFaultRupture node.
:param node: the rupture node
"""
mag, rake, hypocenter = self.get_mag_rake_hypo(node)
with context(self.fname, node):
surfaces = [node.complexFaultGeometry]
rupt = source.rupture.BaseRupture(
mag=mag, rake=rake, tectonic_region_type=None,
hypocenter=hypocenter,
surface=self.convert_surfaces(surfaces),
source_typology=source.ComplexFaultSource)
return rupt
[docs] def convert_singlePlaneRupture(self, node):
"""
Convert a singlePlaneRupture node.
:param node: the rupture node
"""
mag, rake, hypocenter = self.get_mag_rake_hypo(node)
with context(self.fname, node):
surfaces = [node.planarSurface]
rupt = source.rupture.BaseRupture(
mag=mag, rake=rake,
tectonic_region_type=None,
hypocenter=hypocenter,
surface=self.convert_surfaces(surfaces),
source_typology=source.NonParametricSeismicSource)
return rupt
[docs] def convert_multiPlanesRupture(self, node):
"""
Convert a multiPlanesRupture node.
:param node: the rupture node
"""
mag, rake, hypocenter = self.get_mag_rake_hypo(node)
with context(self.fname, node):
surfaces = list(node.getnodes('planarSurface'))
rupt = source.rupture.BaseRupture(
mag=mag, rake=rake,
tectonic_region_type=None,
hypocenter=hypocenter,
surface=self.convert_surfaces(surfaces),
source_typology=source.NonParametricSeismicSource)
return rupt
[docs] def convert_griddedRupture(self, node):
"""
Convert a griddedRupture node.
:param node: the rupture node
"""
mag, rake, hypocenter = self.get_mag_rake_hypo(node)
with context(self.fname, node):
surfaces = [node.griddedSurface]
rupt = source.rupture.BaseRupture(
mag=mag, rake=rake,
tectonic_region_type=None,
hypocenter=hypocenter,
surface=self.convert_surfaces(surfaces),
source_typology=source.NonParametricSeismicSource)
return rupt
[docs] def convert_ruptureCollection(self, node):
"""
:param node: a ruptureCollection node
:returns: a dictionary grp_id -> EBRuptures
"""
coll = {}
for grpnode in node:
grp_id = int(grpnode['id'])
coll[grp_id] = ebrs = []
for node in grpnode:
rup = self.convert_node(node)
rupid = int(node['id'])
sesnodes = node.stochasticEventSets
events = []
for sesnode in sesnodes:
with context(self.fname, sesnode):
ses = sesnode['id']
for eid in (~sesnode).split():
events.append((eid, ses, 0))
ebr = source.rupture.EBRupture(
rup, None, numpy.array(events, event_dt), grp_id, rupid)
ebrs.append(ebr)
return coll
[docs]class SourceConverter(RuptureConverter):
"""
Convert sources from valid nodes into Hazardlib objects.
"""
def __init__(self, investigation_time=50., rupture_mesh_spacing=10.,
complex_fault_mesh_spacing=None, width_of_mfd_bin=1.0,
area_source_discretization=None):
self.area_source_discretization = area_source_discretization
self.rupture_mesh_spacing = rupture_mesh_spacing
self.complex_fault_mesh_spacing = (
complex_fault_mesh_spacing or rupture_mesh_spacing)
self.width_of_mfd_bin = width_of_mfd_bin
self.tom = PoissonTOM(investigation_time)
[docs] def convert_mfdist(self, node):
"""
Convert the given node into a Magnitude-Frequency Distribution
object.
:param node: a node of kind incrementalMFD or truncGutenbergRichterMFD
:returns: a :class:`openquake.hazardlib.mfd.EvenlyDiscretizedMFD.` or
:class:`openquake.hazardlib.mfd.TruncatedGRMFD` instance
"""
with context(self.fname, node):
[mfd_node] = [subnode for subnode in node
if subnode.tag.endswith(
('incrementalMFD', 'truncGutenbergRichterMFD',
'arbitraryMFD', 'YoungsCoppersmithMFD',
'multiMFD'))]
if mfd_node.tag.endswith('incrementalMFD'):
return mfd.EvenlyDiscretizedMFD(
min_mag=mfd_node['minMag'], bin_width=mfd_node['binWidth'],
occurrence_rates=~mfd_node.occurRates)
elif mfd_node.tag.endswith('truncGutenbergRichterMFD'):
return mfd.TruncatedGRMFD(
a_val=mfd_node['aValue'], b_val=mfd_node['bValue'],
min_mag=mfd_node['minMag'], max_mag=mfd_node['maxMag'],
bin_width=self.width_of_mfd_bin)
elif mfd_node.tag.endswith('arbitraryMFD'):
return mfd.ArbitraryMFD(
magnitudes=~mfd_node.magnitudes,
occurrence_rates=~mfd_node.occurRates)
elif mfd_node.tag.endswith('YoungsCoppersmithMFD'):
if "totalMomentRate" in mfd_node.attrib.keys():
# Return Youngs & Coppersmith from the total moment rate
return mfd.YoungsCoppersmith1985MFD.from_total_moment_rate(
min_mag=mfd_node["minMag"], b_val=mfd_node["bValue"],
char_mag=mfd_node["characteristicMag"],
total_moment_rate=mfd_node["totalMomentRate"],
bin_width=mfd_node["binWidth"])
elif "characteristicRate" in mfd_node.attrib.keys():
# Return Youngs & Coppersmith from the total moment rate
return mfd.YoungsCoppersmith1985MFD.\
from_characteristic_rate(
min_mag=mfd_node["minMag"],
b_val=mfd_node["bValue"],
char_mag=mfd_node["characteristicMag"],
char_rate=mfd_node["characteristicRate"],
bin_width=mfd_node["binWidth"])
elif mfd_node.tag.endswith('multiMFD'):
return mfd.multi_mfd.MultiMFD.from_node(
mfd_node, self.width_of_mfd_bin)
[docs] def convert_npdist(self, node):
"""
Convert the given node into a Nodal Plane Distribution.
:param node: a nodalPlaneDist node
:returns: a :class:`openquake.hazardlib.geo.NodalPlane` instance
"""
with context(self.fname, node):
npdist = []
for np in node.nodalPlaneDist:
prob, strike, dip, rake = (
np['probability'], np['strike'], np['dip'], np['rake'])
npdist.append((prob, geo.NodalPlane(strike, dip, rake)))
return pmf.PMF(npdist)
[docs] def convert_hpdist(self, node):
"""
Convert the given node into a probability mass function for the
hypo depth distribution.
:param node: a hypoDepthDist node
:returns: a :class:`openquake.hazardlib.pmf.PMF` instance
"""
with context(self.fname, node):
return pmf.PMF([(hd['probability'], hd['depth'])
for hd in node.hypoDepthDist])
[docs] 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_hpdist(node),
polygon=polygon,
area_discretization=area_discretization,
temporal_occurrence_model=self.tom)
[docs] def convert_pointSource(self, node):
"""
Convert the given node into a point source object.
:param node: a node with tag pointGeometry
:returns: a :class:`openquake.hazardlib.source.PointSource` instance
"""
geom = node.pointGeometry
lon_lat = ~geom.Point.pos
msr = valid.SCALEREL[~node.magScaleRel]()
return source.PointSource(
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,
location=geo.Point(*lon_lat),
nodal_plane_distribution=self.convert_npdist(node),
hypocenter_distribution=self.convert_hpdist(node),
temporal_occurrence_model=self.tom)
[docs] def convert_multiPointSource(self, node):
"""
Convert the given node into a MultiPointSource object.
:param node: a node with tag multiPointGeometry
:returns: a :class:`openquake.hazardlib.source.MultiPointSource`
"""
geom = node.multiPointGeometry
lons, lats = zip(*split_coords_2d(~geom.posList))
msr = valid.SCALEREL[~node.magScaleRel]()
return source.MultiPointSource(
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_hpdist(node),
temporal_occurrence_model=self.tom,
mesh=geo.Mesh(F32(lons), F32(lats)))
[docs] def convert_simpleFaultSource(self, node):
"""
Convert the given node into a simple fault object.
:param node: a node with tag areaGeometry
:returns: a :class:`openquake.hazardlib.source.SimpleFaultSource`
instance
"""
geom = node.simpleFaultGeometry
msr = valid.SCALEREL[~node.magScaleRel]()
fault_trace = self.geo_line(geom)
mfd = self.convert_mfdist(node)
with context(self.fname, node):
try:
hypo_list = valid.hypo_list(node.hypoList)
except AttributeError:
hypo_list = ()
try:
slip_list = valid.slip_list(node.slipList)
except AttributeError:
slip_list = ()
simple = source.SimpleFaultSource(
source_id=node['id'],
name=node['name'],
tectonic_region_type=node.attrib.get('tectonicRegion'),
mfd=mfd,
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,
fault_trace=fault_trace,
dip=~geom.dip,
rake=~node.rake,
temporal_occurrence_model=self.tom,
hypo_list=hypo_list,
slip_list=slip_list)
return simple
[docs] def convert_complexFaultSource(self, node):
"""
Convert the given node into a complex fault object.
:param node: a node with tag areaGeometry
:returns: a :class:`openquake.hazardlib.source.ComplexFaultSource`
instance
"""
geom = node.complexFaultGeometry
edges = self.geo_lines(geom)
mfd = self.convert_mfdist(node)
msr = valid.SCALEREL[~node.magScaleRel]()
with context(self.fname, node):
cmplx = source.ComplexFaultSource(
source_id=node['id'],
name=node['name'],
tectonic_region_type=node.attrib.get('tectonicRegion'),
mfd=mfd,
rupture_mesh_spacing=self.complex_fault_mesh_spacing,
magnitude_scaling_relationship=msr,
rupture_aspect_ratio=~node.ruptAspectRatio,
edges=edges,
rake=~node.rake,
temporal_occurrence_model=self.tom)
return cmplx
[docs] def convert_characteristicFaultSource(self, node):
"""
Convert the given node into a characteristic fault object.
:param node:
a node with tag areaGeometry
:returns:
a :class:`openquake.hazardlib.source.CharacteristicFaultSource`
instance
"""
char = source.CharacteristicFaultSource(
source_id=node['id'],
name=node['name'],
tectonic_region_type=node.attrib.get('tectonicRegion'),
mfd=self.convert_mfdist(node),
surface=self.convert_surfaces(node.surface),
rake=~node.rake,
temporal_occurrence_model=self.tom)
return char
[docs] def convert_nonParametricSeismicSource(self, node):
"""
Convert the given node into a non parametric source object.
:param node:
a node with tag areaGeometry
:returns:
a :class:`openquake.hazardlib.source.NonParametricSeismicSource`
instance
"""
trt = node.attrib.get('tectonicRegion')
rup_pmf_data = []
for rupnode in node:
probs = pmf.PMF(rupnode['probs_occur'])
rup = RuptureConverter.convert_node(self, rupnode)
rup.tectonic_region_type = trt
rup_pmf_data.append((rup, probs))
nps = source.NonParametricSeismicSource(
node['id'], node['name'], trt, rup_pmf_data)
return nps
[docs] def convert_sourceModel(self, node):
return [self.convert_node(subnode) for subnode in node]
[docs] def convert_sourceGroup(self, node):
"""
Convert the given node into a SourceGroup object.
:param node:
a node with tag sourceGroup
:returns:
a :class:`SourceGroup` instance
"""
trt = node['tectonicRegion']
srcs_weights = node.attrib.get('srcs_weights')
grp_probability = node.attrib.get('grp_probability')
grp_attrs = {k: v for k, v in node.attrib.items()
if k not in ('name', 'src_interdep', 'rup_interdep',
'srcs_weights')}
sg = SourceGroup(trt)
for src_node in node:
src = self.convert_node(src_node)
# transmit the group attributes to the underlying source
for attr, value in grp_attrs.items():
if attr == 'tectonicRegion':
src.tectonic_region_type = value
elif attr == 'grp_probability':
pass # do not transmit
else: # transmit as it is
setattr(src, attr, node[attr])
sg.update(src)
if srcs_weights is not None:
if len(srcs_weights) != len(node):
raise ValueError('There are %d srcs_weights but %d source(s)'
% (len(srcs_weights), len(node)))
sg.name = node.attrib.get('name')
sg.src_interdep = node.attrib.get('src_interdep')
sg.rup_interdep = node.attrib.get('rup_interdep')
sg._srcs_weights = srcs_weights
sg.grp_probability = grp_probability
return sg
# ################### MultiPointSource conversion ######################## #
def _npd(nodes):
# convert the nodalPlaneDistributions into a tuple
lst = []
for node in nodes:
lst.append((node['probability'],
node['rake'], node['strike'], node['dip']))
return tuple(lst)
def _hd(nodes):
# convert the hypocenterDistributions into a tuple
lst = []
for node in nodes:
lst.append((node['probability'], node['depth']))
return tuple(lst)
[docs]def get_key(node):
"""
Convert the given pointSource node into a tuple
"""
return (
~node.magScaleRel, ~node.ruptAspectRatio,
~node.pointGeometry.upperSeismoDepth,
~node.pointGeometry.lowerSeismoDepth,
_hd(node.hypoDepthDist), _npd(node.nodalPlaneDist))
[docs]def collapse(array):
"""
Collapse a homogeneous array into a scalar; do nothing if the array
is not homogenous
"""
if len(set(a for a in array)) == 1: # homogenous array
return array[0]
return array
[docs]def mfds2multimfd(mfds):
"""
Convert a list of MFD nodes into a single MultiMFD node
"""
_, kind = mfds[0].tag.split('}')
node = Node('multiMFD', dict(kind=kind, size=len(mfds)))
lengths = None
for field in mfd.multi_mfd.ASSOC[kind][1:]:
alias = mfd.multi_mfd.ALIAS.get(field, field)
if field in ('magnitudes', 'occurRates'):
data = [~getattr(m, field) for m in mfds]
lengths = [len(d) for d in data]
data = sum(data, []) # list of lists
else:
try:
data = [m[alias] for m in mfds]
except KeyError:
if alias == 'binWidth':
# missing bindWidth in GR MDFs is ok
continue
else:
raise
node.append(Node(field, text=collapse(data)))
if lengths: # this is the last field if present
node.append(Node('lengths', text=collapse(lengths)))
return node
def _pointsources2multipoints(srcs, i):
allsources = []
for key, sources in groupby(srcs, get_key).items():
if len(sources) == 1: # there is a single source
allsources.extend(sources)
continue
msr, rar, usd, lsd, hd, npd = key
mfds = [src[3] for src in sources]
points = []
for src in sources:
points.extend(~src.pointGeometry.Point.pos)
geom = Node('multiPointGeometry')
geom.append(Node('gml:posList', text=points))
geom.append(Node('upperSeismoDepth', text=usd))
geom.append(Node('lowerSeismoDepth', text=lsd))
node = Node(
'multiPointSource',
dict(id='mps-%d' % i, name='multiPointSource-%d' % i),
nodes=[geom])
node.append(Node("magScaleRel", text=msr))
node.append(Node("ruptAspectRatio", text=rar))
node.append(mfds2multimfd(mfds))
node.append(Node('nodalPlaneDist', nodes=[
Node('nodalPlane', dict(probability=prob, rake=rake,
strike=strike, dip=dip))
for prob, rake, strike, dip in npd]))
node.append(Node('hypoDepthDist', nodes=[
Node('hypoDepth', dict(depth=depth, probability=prob))
for prob, depth in hd]))
allsources.append(node)
i += 1
return i, allsources
[docs]def update_source_model(sm_node):
"""
:param sm_node: a sourceModel Node object containing sourceGroups
"""
i = 0
for group in sm_node:
if not group.tag.endswith('sourceGroup'):
raise InvalidFile('wrong NRML, got %s instead of '
'sourceGroup' % group.tag)
psrcs = []
others = []
for src in group:
try:
del src.attrib['tectonicRegion'] # make the trt implicit
except KeyError:
pass # already missing
if src.tag.endswith('pointSource'):
psrcs.append(src)
else:
others.append(src)
others.sort(key=lambda src: (src.tag, src['id']))
i, sources = _pointsources2multipoints(psrcs, i)
group.nodes = sources + others