Source code for openquake.hazardlib.geo.nodalplane

# The Hazard Library
# Copyright (C) 2012-2014, GEM Foundation
#
# This program 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.
#
# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
"""
Module :mod:`openquake.hazardlib.geo.nodalplane` implements
:class:`NodalPlane`.
"""
from openquake.baselib.slots import with_slots


@with_slots
[docs]class NodalPlane(object): """ Nodal plane represents earthquake rupture orientation and propagation direction. :param strike: Angle between line created by the intersection of rupture plane and the North direction (defined between 0 and 360 degrees). :param dip: Angle between earth surface and fault plane (defined between 0 and 90 degrees). :param rake: Angle describing rupture propagation direction (defined between -180 and +180 degrees). :raises ValueError: If any of parameters exceeds the definition range. """ _slots_ = ['strike', 'dip', 'rake'] def __init__(self, strike, dip, rake): self.check_dip(dip) self.check_rake(rake) self.check_strike(strike) self.strike = strike self.dip = dip self.rake = rake @classmethod
[docs] def check_dip(cls, dip): """ Check if ``dip`` is in range ``(0, 90]`` and raise ``ValueError`` otherwise. """ if not 0 < dip <= 90: raise ValueError('dip is out of range (0, 90]')
@classmethod
[docs] def check_strike(cls, strike): """ Check if ``strike`` is in range ``[0, 360)`` and raise ``ValueError`` otherwise. """ if not 0 <= strike < 360: raise ValueError('strike is out of range [0, 360)')
@classmethod
[docs] def check_rake(cls, rake): """ Check if ``rake`` is in range ``(-180, 180]`` and raise ``ValueError`` otherwise. """ if not -180 < rake <= 180: raise ValueError('rake is out of range (-180, 180]')