#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Provides the Inventory class.
:copyright:
Lion Krischer (krischer@geophysik.uni-muenchen.de), 2013
:license:
GNU Lesser General Public License, Version 3
(https://www.gnu.org/copyleft/lesser.html)
"""
from __future__ import (absolute_import, division, print_function,
unicode_literals)
from future.builtins import * # NOQA
from future.utils import python_2_unicode_compatible
import copy
import fnmatch
import textwrap
import warnings
import obspy
from obspy.core.util.base import (ENTRY_POINTS, ComparingObject,
_read_from_plugin, _generic_reader)
from obspy.core.util.decorator import map_example_filename, uncompress_file
from obspy.core.util.misc import buffered_load_entry_point
from obspy.core.util.obspy_types import ObsPyException, ZeroSamplingRate
from .network import Network
from .util import _unified_content_strings, _textwrap, _response_plot_label
# Make sure this is consistent with obspy.io.stationxml! Importing it
# from there results in hard to resolve cyclic imports.
SOFTWARE_MODULE = "ObsPy %s" % obspy.__version__
SOFTWARE_URI = "https://www.obspy.org"
[docs]def _create_example_inventory():
"""
Create an example inventory.
"""
return read_inventory('/path/to/BW_GR_misc.xml', format="STATIONXML")
@map_example_filename("path_or_file_object")
[docs]def read_inventory(path_or_file_object=None, format=None, *args, **kwargs):
"""
Function to read inventory files.
:type path_or_file_object: str or file-like object.
:param path_or_file_object: String containing a file name or a URL or a
open file-like object. Wildcards are allowed for a file name. If this
attribute is omitted, an example
:class:`~obspy.core.inventory.inventory.Inventory` object will be
returned.
:type format: str
:param format: Format of the file to read (e.g. ``"STATIONXML"``). See the
`Supported Formats`_ section below for a list of supported formats.
:rtype: :class:`~obspy.core.inventory.inventory.Inventory`
:return: An ObsPy :class:`~obspy.core.inventory.inventory.Inventory`
object.
Additional args and kwargs are passed on to the underlying ``_read_X()``
methods of the inventory plugins.
.. rubric:: _`Supported Formats`
Additional ObsPy modules extend the functionality of the
:func:`~obspy.core.inventory.inventory.read_inventory` function. The
following table summarizes all known file formats currently supported by
ObsPy.
Please refer to the `Linked Function Call`_ of each module for any extra
options available at the import stage.
%s
.. note::
For handling additional information not covered by the
StationXML standard and how to output it to StationXML
see the :ref:`ObsPy Tutorial <stationxml-extra>`.
"""
if path_or_file_object is None:
# if no pathname or URL specified, return example catalog
return _create_example_inventory()
else:
return _generic_reader(path_or_file_object, _read, format=format,
**kwargs)
@uncompress_file
[docs]def _read(filename, format=None, **kwargs):
"""
Reads a single event file into a ObsPy Catalog object.
"""
inventory, format = _read_from_plugin('inventory', filename, format=format,
**kwargs)
return inventory
@python_2_unicode_compatible
[docs]class Inventory(ComparingObject):
"""
The root object of the Inventory->Network->Station->Channel hierarchy.
In essence just a container for one or more networks.
"""
[docs] def __init__(self, networks=None, source=SOFTWARE_MODULE, sender=None,
created=None, module=SOFTWARE_MODULE,
module_uri=SOFTWARE_URI):
"""
:type networks: list of
:class:`~obspy.core.inventory.network.Network`
:param networks: A list of networks part of this inventory.
:type source: str
:param source: Network ID of the institution sending the message.
:type sender: str, optional
:param sender: Name of the institution sending this message.
:type created: :class:`~obspy.core.utcdatetime.UTCDateTime`, optional
:param created: The time when the document was created. Will be set to
the current time if not given.
:type module: str
:param module: Name of the software module that generated this
document, defaults to ObsPy related information.
:type module_uri: str
:param module_uri: This is the address of the query that generated the
document, or, if applicable, the address of the software that
generated this document, defaults to ObsPy related information.
.. note::
For handling additional information not covered by the
StationXML standard and how to output it to StationXML
see the :ref:`ObsPy Tutorial <stationxml-extra>`.
"""
self.networks = networks if networks is not None else []
self.source = source
self.sender = sender
self.module = module
self.module_uri = module_uri
# Set the created field to the current time if not given otherwise.
if created is None:
self.created = obspy.UTCDateTime()
else:
self.created = created
[docs] def __eq__(self, other):
"""
__eq__ method of the Inventory object.
:type other: :class:`~obspy.core.inventory.Inventory`
:param other: Inventory object for comparison.
:rtype: bool
:return: ``True`` if both Inventories are equal.
.. rubric:: Example
>>> from obspy.core.inventory import read_inventory
>>> inv = read_inventory()
>>> inv2 = inv.copy()
>>> inv is inv2
False
>>> inv == inv2
True
"""
if not isinstance(other, Inventory):
return False
return self.networks == other.networks
[docs] def __ne__(self, other):
return not self.__eq__(other)
[docs] def __add__(self, other):
new = copy.deepcopy(self)
new += other
return new
[docs] def __iadd__(self, other):
if isinstance(other, Inventory):
self.networks.extend(other.networks)
# This is a straight inventory merge.
self.__copy_inventory_metadata(other)
elif isinstance(other, Network):
self.networks.append(other)
else:
msg = ("Only Inventory and Network objects can be added to "
"an Inventory.")
raise TypeError(msg)
return self
[docs] def __len__(self):
return len(self.networks)
[docs] def __getitem__(self, index):
return self.networks[index]
def __copy_inventory_metadata(self, other):
"""
Will be called after two inventory objects have been merged. It
attempts to assure that inventory meta information is somewhat
correct after the merging.
The networks in other will have been moved to self.
"""
# The creation time is naturally adjusted to the current time.
self.created = obspy.UTCDateTime()
# Merge the source.
srcs = [self.source, other.source]
srcs = [_i for _i in srcs if _i]
all_srcs = []
for src in srcs:
all_srcs.extend(src.split(","))
if all_srcs:
src = sorted(list(set(all_srcs)))
self.source = ",".join(src)
else:
self.source = None
# Do the same with the sender.
sndrs = [self.sender, other.sender]
sndrs = [_i for _i in sndrs if _i]
all_sndrs = []
for sndr in sndrs:
all_sndrs.extend(sndr.split(","))
if all_sndrs:
sndr = sorted(list(set(all_sndrs)))
self.sender = ",".join(sndr)
else:
self.sender = None
# The module and URI strings will be changed to ObsPy as it did the
# modification.
self.module = SOFTWARE_MODULE
self.module_uri = SOFTWARE_URI
[docs] def get_contents(self):
"""
Returns a dictionary containing the contents of the object.
.. rubric:: Example
>>> example_filename = "/path/to/IRIS_single_channel_with_response.xml"
>>> inventory = read_inventory(example_filename)
>>> inventory.get_contents() \
# doctest: +NORMALIZE_WHITESPACE +ELLIPSIS
{...}
>>> for k, v in sorted(inventory.get_contents().items()): \
# doctest: +NORMALIZE_WHITESPACE
... print(k, v[0])
channels IU.ANMO.10.BHZ
networks IU
stations IU.ANMO (Albuquerque, New Mexico, USA)
"""
content_dict = {
"networks": [],
"stations": [],
"channels": []}
for network in self.networks:
content_dict['networks'].append(network.code)
for key, value in network.get_contents().items():
content_dict.setdefault(key, [])
content_dict[key].extend(value)
content_dict[key].sort()
content_dict['networks'].sort()
return content_dict
[docs] def __str__(self):
ret_str = "Inventory created at %s\n" % str(self.created)
if self.module:
module_uri = self.module_uri
if module_uri and len(module_uri) > 70:
module_uri = textwrap.wrap(module_uri, width=67)[0] + "..."
ret_str += ("\tCreated by: %s%s\n" % (
self.module,
"\n\t\t %s" % (module_uri if module_uri else "")))
ret_str += "\tSending institution: %s%s\n" % (
self.source, " (%s)" % self.sender if self.sender else "")
contents = self.get_contents()
ret_str += "\tContains:\n"
ret_str += "\t\tNetworks (%i):\n" % len(contents["networks"])
ret_str += "\n".join(_textwrap(
", ".join(_unified_content_strings(contents["networks"])),
initial_indent="\t\t\t", subsequent_indent="\t\t\t",
expand_tabs=False))
ret_str += "\n"
ret_str += "\t\tStations (%i):\n" % len(contents["stations"])
ret_str += "\n".join([
"\t\t\t%s" % _i
for _i in _unified_content_strings(contents["stations"])])
ret_str += "\n"
ret_str += "\t\tChannels (%i):\n" % len(contents["channels"])
ret_str += "\n".join(_textwrap(
", ".join(_unified_content_strings(contents["channels"])),
initial_indent="\t\t\t", subsequent_indent="\t\t\t",
expand_tabs=False))
return ret_str
[docs] def _repr_pretty_(self, p, cycle):
p.text(str(self))
[docs] def extend(self, network_list):
"""
Extends the current Catalog object with a list of Network objects.
"""
if isinstance(network_list, list):
for _i in network_list:
# Make sure each item in the list is a event.
if not isinstance(_i, Network):
msg = 'Extend only accepts a list of Network objects.'
raise TypeError(msg)
self.networks.extend(network_list)
elif isinstance(network_list, Inventory):
self.networks.extend(network_list.networks)
else:
msg = 'Extend only supports a list of Network objects as argument.'
raise TypeError(msg)
[docs] def write(self, path_or_file_object, format, **kwargs):
"""
Writes the inventory object to a file or file-like object in
the specified format.
:param path_or_file_object: File name or file-like object to be written
to.
:type format: str
:param format: The file format to use (e.g. ``"STATIONXML"``). See the
`Supported Formats`_ section below for a list of supported formats.
:param kwargs: Additional keyword arguments passed to the underlying
plugin's writer method.
.. rubric:: Example
>>> from obspy import read_inventory
>>> inventory = read_inventory()
>>> inventory.write("example.xml",
... format="STATIONXML") # doctest: +SKIP
.. rubric:: _`Supported Formats`
Additional ObsPy modules extend the parameters of the
:meth:`~obspy.core.inventory.inventory.Inventory.write()` method. The
following table summarizes all known formats with write capability
currently available for ObsPy.
Please refer to the `Linked Function Call`_ of each module for any
extra options available.
%s
"""
format = format.upper()
try:
# get format specific entry point
format_ep = ENTRY_POINTS['inventory_write'][format]
# search writeFormat method for given entry point
write_format = buffered_load_entry_point(
format_ep.dist.key,
'obspy.plugin.inventory.%s' % (format_ep.name), 'writeFormat')
except (IndexError, ImportError, KeyError):
msg = "Writing format '{}' is not supported. Supported types: {}"
msg = msg.format(format,
', '.join(ENTRY_POINTS['inventory_write']))
raise ValueError(msg)
return write_format(self, path_or_file_object, **kwargs)
[docs] def copy(self):
"""
Return a deepcopy of the Inventory object.
:rtype: :class:`~obspy.core.inventory.inventory.Inventory`
:return: Copy of current inventory.
.. rubric:: Examples
1. Create an Inventory and copy it
>>> from obspy import read_inventory
>>> inv = read_inventory()
>>> inv2 = inv.copy()
The two objects are not the same:
>>> inv is inv2
False
But they are (currently) equal:
>>> inv == inv2
True
"""
return copy.deepcopy(self)
@property
def networks(self):
return self._networks
@networks.setter
def networks(self, value):
if not hasattr(value, "__iter__"):
msg = "networks needs to be iterable, e.g. a list."
raise ValueError(msg)
if any([not isinstance(x, Network) for x in value]):
msg = "networks can only contain Network objects."
raise ValueError(msg)
self._networks = value
[docs] def get_response(self, seed_id, datetime):
"""
Find response for a given channel at given time.
>>> from obspy import read_inventory, UTCDateTime
>>> inventory = read_inventory("/path/to/IU_ANMO_BH.xml")
>>> datetime = UTCDateTime("2012-08-24T00:00:00")
>>> response = inventory.get_response("IU.ANMO.00.BHZ", datetime)
>>> print(response) # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
Channel Response
From M/S (Velocity in Meters Per Second) to COUNTS (Digital Counts)
Overall Sensitivity: 3.27508e+09 defined at 0.020 Hz
3 stages:
Stage 1: PolesZerosResponseStage from M/S to V, gain: 1952.1
Stage 2: CoefficientsTypeResponseStage from V to COUNTS, gain: ...
Stage 3: CoefficientsTypeResponseStage from COUNTS to COUNTS, ...
:type seed_id: str
:param seed_id: SEED ID string of channel to get response for.
:type datetime: :class:`~obspy.core.utcdatetime.UTCDateTime`
:param datetime: Time to get response for.
:rtype: :class:`~obspy.core.inventory.response.Response`
:returns: Response for time series specified by input arguments.
"""
network, _, _, _ = seed_id.split(".")
responses = []
for net in self.networks:
if net.code != network:
continue
try:
responses.append(net.get_response(seed_id, datetime))
except Exception:
pass
if len(responses) > 1:
msg = "Found more than one matching response. Returning first."
warnings.warn(msg)
elif len(responses) < 1:
msg = "No matching response information found."
raise Exception(msg)
return responses[0]
[docs] def get_coordinates(self, seed_id, datetime=None):
"""
Return coordinates for a given channel.
>>> from obspy import read_inventory, UTCDateTime
>>> inv = read_inventory()
>>> t = UTCDateTime("2015-01-01")
>>> inv.get_coordinates("GR.FUR..LHE", t) # doctest: +SKIP
{'elevation': 565.0,
'latitude': 48.162899,
'local_depth': 0.0,
'longitude': 11.2752}
:type seed_id: str
:param seed_id: SEED ID string of channel to get coordinates for.
:type datetime: :class:`~obspy.core.utcdatetime.UTCDateTime`, optional
:param datetime: Time to get coordinates for.
:rtype: dict
:return: Dictionary containing coordinates (latitude, longitude,
elevation, local_depth)
"""
metadata = self.get_channel_metadata(seed_id, datetime)
coordinates = {}
for key in ['latitude', 'longitude', 'elevation', 'local_depth']:
coordinates[key] = metadata[key]
return coordinates
[docs] def get_orientation(self, seed_id, datetime=None):
"""
Return orientation for a given channel.
>>> from obspy import read_inventory, UTCDateTime
>>> inv = read_inventory()
>>> t = UTCDateTime("2015-01-01")
>>> inv.get_orientation("GR.FUR..LHE", t) # doctest: +SKIP
{'azimuth': 90.0,
'dip': 0.0}
:type seed_id: str
:param seed_id: SEED ID string of channel to get orientation for.
:type datetime: :class:`~obspy.core.utcdatetime.UTCDateTime`, optional
:param datetime: Time to get orientation for.
:rtype: dict
:return: Dictionary containing orientation (azimuth, dip).
"""
metadata = self.get_channel_metadata(seed_id, datetime)
orientation = {}
for key in ['azimuth', 'dip']:
orientation[key] = metadata[key]
return orientation
[docs] def select(self, network=None, station=None, location=None, channel=None,
time=None, starttime=None, endtime=None, sampling_rate=None,
keep_empty=False, minlatitude=None, maxlatitude=None,
minlongitude=None, maxlongitude=None, latitude=None,
longitude=None, minradius=None, maxradius=None):
r"""
Return a copy of the inventory filtered on various parameters.
Returns the :class:`Inventory` object with only the
:class:`~obspy.core.inventory.network.Network`\ s /
:class:`~obspy.core.inventory.station.Station`\ s /
:class:`~obspy.core.inventory.channel.Channel`\ s that match the given
criteria (e.g. all channels with ``channel="EHZ"``).
.. warning::
The returned object is based on a shallow copy of the original
object. That means that modifying any mutable child elements will
also modify the original object
(see https://docs.python.org/2/library/copy.html).
Use :meth:`copy()` afterwards to make a new copy of the data in
memory.
.. rubric:: Example
>>> from obspy import read_inventory, UTCDateTime
>>> inv = read_inventory()
>>> t = UTCDateTime(2007, 7, 1, 12)
>>> inv = inv.select(channel="*Z", station="[RW]*", time=t)
>>> print(inv) # doctest: +NORMALIZE_WHITESPACE
Inventory created at 2014-03-03T11:07:06.198000Z
Created by: fdsn-stationxml-converter/1.0.0
http://www.iris.edu/fdsnstationconverter
Sending institution: Erdbebendienst Bayern
Contains:
Networks (2):
BW, GR
Stations (2):
BW.RJOB (Jochberg, Bavaria, BW-Net)
GR.WET (Wettzell, Bavaria, GR-Net)
Channels (4):
BW.RJOB..EHZ, GR.WET..BHZ, GR.WET..HHZ, GR.WET..LHZ
The `network`, `station`, `location` and `channel` selection criteria
may also contain UNIX style wildcards (e.g. ``*``, ``?``, ...; see
:func:`~fnmatch.fnmatch`).
:type network: str
:param network: Potentially wildcarded network code. If not given,
all network codes will be accepted.
:type station: str
:param station: Potentially wildcarded station code. If not given,
all station codes will be accepted.
:type location: str
:param location: Potentially wildcarded location code. If not given,
all location codes will be accepted.
:type channel: str
:param channel: Potentially wildcarded channel code. If not given,
all channel codes will be accepted.
:type time: :class:`~obspy.core.utcdatetime.UTCDateTime`
:param time: Only include networks/stations/channels active at given
point in time.
:type starttime: :class:`~obspy.core.utcdatetime.UTCDateTime`
:param starttime: Only include networks/stations/channels active at or
after given point in time (i.e. channels ending before given time
will not be shown).
:type endtime: :class:`~obspy.core.utcdatetime.UTCDateTime`
:param endtime: Only include networks/stations/channels active before
or at given point in time (i.e. channels starting after given time
will not be shown).
:type sampling_rate: float
:param sampling_rate: Only include channels whose sampling rate
matches the given sampling rate, in Hz (within absolute tolerance
of 1E-8 Hz and relative tolerance of 1E-5)
:type keep_empty: bool
:param keep_empty: If set to `True`, networks/stations that match
themselves but have no matching child elements (stations/channels)
will be included in the result.
:type minlatitude: float
:param minlatitude: Only include stations/channels with a latitude
larger than the specified minimum.
:type maxlatitude: float
:param maxlatitude: Only include stations/channels with a latitude
smaller than the specified maximum.
:type minlongitude: float
:param minlongitude: Only include stations/channels with a longitude
larger than the specified minimum.
:type maxlongitude: float
:param maxlongitude: Only include stations/channels with a longitude
smaller than the specified maximum.
:type latitude: float
:param latitude: Specify the latitude to be used for a radius
selection.
:type longitude: float
:param longitude: Specify the longitude to be used for a radius
selection.
:type minradius: float
:param minradius: Only include stations/channels within the specified
minimum number of degrees from the geographic point defined by the
latitude and longitude parameters.
:type maxradius: float
:param maxradius: Only include stations/channels within the specified
maximum number of degrees from the geographic point defined by the
latitude and longitude parameters.
"""
networks = []
for net in self.networks:
# skip if any given criterion is not matched
if network is not None:
if not fnmatch.fnmatch(net.code.upper(),
network.upper()):
continue
if any([t is not None for t in (time, starttime, endtime)]):
if not net.is_active(time=time, starttime=starttime,
endtime=endtime):
continue
has_stations = bool(net.stations)
net_ = net.select(
station=station, location=location, channel=channel, time=time,
starttime=starttime, endtime=endtime,
sampling_rate=sampling_rate, keep_empty=keep_empty,
minlatitude=minlatitude, maxlatitude=maxlatitude,
minlongitude=minlongitude, maxlongitude=maxlongitude,
latitude=latitude, longitude=longitude,
minradius=minradius, maxradius=maxradius)
# If the network previously had stations but no longer has any
# and keep_empty is False: Skip the network.
if has_stations and not keep_empty and not net_.stations:
continue
networks.append(net_)
inv = copy.copy(self)
inv.networks = networks
return inv
[docs] def remove(self, network='*', station='*', location='*', channel='*',
keep_empty=False):
r"""
Return a copy of the inventory with selected elements removed.
Returns the :class:`Inventory` object but excluding the
:class:`~obspy.core.inventory.network.Network`\ s /
:class:`~obspy.core.inventory.station.Station`\ s /
:class:`~obspy.core.inventory.channel.Channel`\ s that match the given
criteria (e.g. remove all ``EHZ`` channels with ``channel="EHZ"``).
.. warning::
The returned object is based on a shallow copy of the original
object. That means that modifying any mutable child elements will
also modify the original object
(see https://docs.python.org/2/library/copy.html).
Use :meth:`copy()` afterwards to make a new copy of the data in
memory.
.. rubric:: Example
>>> from obspy import read_inventory, UTCDateTime
>>> inv = read_inventory()
>>> inv_new = inv.remove(network='BW')
>>> print(inv_new) # doctest: +NORMALIZE_WHITESPACE
Inventory created at 2014-03-03T11:07:06.198000Z
Created by: fdsn-stationxml-converter/1.0.0
http://www.iris.edu/fdsnstationconverter
Sending institution: Erdbebendienst Bayern
Contains:
Networks (1):
GR
Stations (2):
GR.FUR (Fuerstenfeldbruck, Bavaria, GR-Net)
GR.WET (Wettzell, Bavaria, GR-Net)
Channels (21):
GR.FUR..BHZ, GR.FUR..BHN, GR.FUR..BHE, GR.FUR..HHZ,
GR.FUR..HHN, GR.FUR..HHE, GR.FUR..LHZ, GR.FUR..LHN,
GR.FUR..LHE, GR.FUR..VHZ, GR.FUR..VHN, GR.FUR..VHE,
GR.WET..BHZ, GR.WET..BHN, GR.WET..BHE, GR.WET..HHZ,
GR.WET..HHN, GR.WET..HHE, GR.WET..LHZ, GR.WET..LHN,
GR.WET..LHE
>>> inv_new = inv.remove(network='BW', channel="[EH]*")
>>> print(inv_new) # doctest: +NORMALIZE_WHITESPACE
Inventory created at 2014-03-03T11:07:06.198000Z
Created by: fdsn-stationxml-converter/1.0.0
http://www.iris.edu/fdsnstationconverter
Sending institution: Erdbebendienst Bayern
Contains:
Networks (1):
GR
Stations (2):
GR.FUR (Fuerstenfeldbruck, Bavaria, GR-Net)
GR.WET (Wettzell, Bavaria, GR-Net)
Channels (21):
GR.FUR..BHZ, GR.FUR..BHN, GR.FUR..BHE, GR.FUR..HHZ,
GR.FUR..HHN, GR.FUR..HHE, GR.FUR..LHZ, GR.FUR..LHN,
GR.FUR..LHE, GR.FUR..VHZ, GR.FUR..VHN, GR.FUR..VHE,
GR.WET..BHZ, GR.WET..BHN, GR.WET..BHE, GR.WET..HHZ,
GR.WET..HHN, GR.WET..HHE, GR.WET..LHZ, GR.WET..LHN,
GR.WET..LHE
>>> inv_new = inv.remove(network='BW', channel="[EH]*",
... keep_empty=True)
>>> print(inv_new) # doctest: +NORMALIZE_WHITESPACE
Inventory created at 2014-03-03T11:07:06.198000Z
Created by: fdsn-stationxml-converter/1.0.0
http://www.iris.edu/fdsnstationconverter
Sending institution: Erdbebendienst Bayern
Contains:
Networks (2):
BW, GR
Stations (5):
BW.RJOB (Jochberg, Bavaria, BW-Net) (3x)
GR.FUR (Fuerstenfeldbruck, Bavaria, GR-Net)
GR.WET (Wettzell, Bavaria, GR-Net)
Channels (21):
GR.FUR..BHZ, GR.FUR..BHN, GR.FUR..BHE, GR.FUR..HHZ,
GR.FUR..HHN, GR.FUR..HHE, GR.FUR..LHZ, GR.FUR..LHN,
GR.FUR..LHE, GR.FUR..VHZ, GR.FUR..VHN, GR.FUR..VHE,
GR.WET..BHZ, GR.WET..BHN, GR.WET..BHE, GR.WET..HHZ,
GR.WET..HHN, GR.WET..HHE, GR.WET..LHZ, GR.WET..LHN,
GR.WET..LHE
The `network`, `station`, `location` and `channel` selection criteria
may also contain UNIX style wildcards (e.g. ``*``, ``?``, ...; see
:func:`~fnmatch.fnmatch`).
:type network: str
:param network: Potentially wildcarded network code. If not specified,
then all network codes will be matched for removal (combined with
other options).
:type station: str
:param station: Potentially wildcarded station code. If not specified,
then all station codes will be matched for removal (combined with
other options).
:type location: str
:param location: Potentially wildcarded location code. If not
specified, then all location codes will be matched for removal
(combined with other options).
:type channel: str
:param channel: Potentially wildcarded channel code. If not specified,
then all channel codes will be matched for removal (combined with
other options).
:type keep_empty: bool
:param keep_empty: If set to `True`, networks/stations that are left
without child elements (stations/channels) will still be included
in the result.
"""
# Select all objects that are to be removed.
selected = self.select(network=network, station=station,
location=location, channel=channel)
selected_networks = [net for net in selected]
selected_stations = [sta for net in selected_networks for sta in net]
selected_channels = [cha for net in selected_networks
for sta in net for cha in sta]
# Iterate inventory tree and rebuild it excluding selected components.
networks = []
for net in self:
if net in selected_networks and station == '*' and \
location == '*' and channel == '*':
continue
stations = []
for sta in net:
if sta in selected_stations and location == '*' \
and channel == '*':
continue
channels = []
for cha in sta:
if cha in selected_channels:
continue
channels.append(cha)
channels_were_empty = not bool(sta.channels)
if not channels and not (keep_empty or channels_were_empty):
continue
sta = copy.copy(sta)
sta.channels = channels
stations.append(sta)
stations_were_empty = not bool(net.stations)
if not stations and not (keep_empty or stations_were_empty):
continue
net = copy.copy(net)
net.stations = stations
networks.append(net)
inv = copy.copy(self)
inv.networks = networks
return inv
[docs] def plot(self, projection='global', resolution='l',
continent_fill_color='0.9', water_fill_color='1.0', marker="v",
size=15**2, label=True, color='#b15928', color_per_network=False,
colormap="Paired", legend="upper left", time=None, show=True,
outfile=None, method=None, fig=None, **kwargs): # @UnusedVariable
"""
Creates a preview map of all networks/stations in current inventory
object.
:type projection: str, optional
:param projection: The map projection. Currently supported are:
* ``"global"`` (Will plot the whole world.)
* ``"ortho"`` (Will center around the mean lat/long.)
* ``"local"`` (Will plot around local events)
Defaults to ``"global"``
:type resolution: str, optional
:param resolution: Resolution of the boundary database to use. Will be
based directly to the basemap module. Possible values are:
* ``"c"`` (crude)
* ``"l"`` (low)
* ``"i"`` (intermediate)
* ``"h"`` (high)
* ``"f"`` (full)
Defaults to ``"l"``
:type continent_fill_color: Valid matplotlib color, optional
:param continent_fill_color: Color of the continents. Defaults to
``"0.9"`` which is a light gray.
:type water_fill_color: Valid matplotlib color, optional
:param water_fill_color: Color of all water bodies.
Defaults to ``"white"``.
:type marker: str
:param marker: Marker symbol (see :func:`matplotlib.pyplot.scatter`).
:type size: float
:param size: Marker size (see :func:`matplotlib.pyplot.scatter`).
:type label: bool
:param label: Whether to label stations with "network.station" or not.
:type color: str
:param color: Face color of marker symbol (see
:func:`matplotlib.pyplot.scatter`). Defaults to the first color
from the single-element "Paired" color map.
:type color_per_network: bool or dict
:param color_per_network: If set to ``True``, each network will be
drawn in a different color. A dictionary can be provided that maps
network codes to color values (e.g.
``color_per_network={"GR": "black", "II": "green"}``).
:type colormap: str, any matplotlib colormap, optional
:param colormap: Only used if ``color_per_network=True``. Specifies
which colormap is used to draw the colors for the individual
networks. Defaults to the "Paired" color map.
:type legend: str or None
:param legend: Location string for legend, if networks are plotted in
different colors (i.e. option ``color_per_network`` in use). See
:func:`matplotlib.pyplot.legend` for possible values for
legend location string. To disable legend set to ``None``.
:type time: :class:`~obspy.core.utcdatetime.UTCDateTime`
:param time: Only plot stations available at given point in time.
:type show: bool
:param show: Whether to show the figure after plotting or not. Can be
used to do further customization of the plot before showing it.
:type outfile: str
:param outfile: Output file path to directly save the resulting image
(e.g. ``"/tmp/image.png"``). Overrides the ``show`` option, image
will not be displayed interactively. The given path/file name is
also used to automatically determine the output format. Supported
file formats depend on your matplotlib backend. Most backends
support png, pdf, ps, eps and svg. Defaults to ``None``.
:type method: str
:param method: Method to use for plotting. Possible values are:
* ``'basemap'`` to use the Basemap library
* ``'cartopy'`` to use the Cartopy library
* ``None`` to use the best available library
Defaults to ``None``.
:type fig: :class:`matplotlib.figure.Figure`
:param fig: Figure instance to reuse, returned from a previous
inventory/catalog plot call with `method=basemap`.
If a previous basemap plot is reused, any kwargs regarding the
basemap plot setup will be ignored (i.e. `projection`,
`resolution`, `continent_fill_color`, `water_fill_color`). Note
that multiple plots using colorbars likely are problematic, but
e.g. one station plot (without colorbar) and one event plot (with
colorbar) together should work well.
:returns: Figure instance with the plot.
.. rubric:: Example
Mollweide projection for global overview:
>>> from obspy import read_inventory
>>> inv = read_inventory()
>>> inv.plot(label=False) # doctest:+SKIP
.. plot::
from obspy import read_inventory
inv = read_inventory()
inv.plot(label=False)
Orthographic projection, automatic colors per network:
>>> inv.plot(projection="ortho", label=False,
... color_per_network=True) # doctest:+SKIP
.. plot::
from obspy import read_inventory
inv = read_inventory()
inv.plot(projection="ortho", label=False, color_per_network=True)
Local (Albers equal area) projection, with custom colors:
>>> colors = {'GR': 'blue', 'BW': 'green'}
>>> inv.plot(projection="local",
... color_per_network=colors) # doctest:+SKIP
.. plot::
from obspy import read_inventory
inv = read_inventory()
inv.plot(projection="local",
color_per_network={'GR': 'blue',
'BW': 'green'})
Combining a station and event plot (uses basemap):
>>> from obspy import read_inventory, read_events
>>> inv = read_inventory()
>>> cat = read_events()
>>> fig = inv.plot(method="basemap", show=False) # doctest:+SKIP
>>> cat.plot(method="basemap", fig=fig) # doctest:+SKIP
.. plot::
from obspy import read_inventory, read_events
inv = read_inventory()
cat = read_events()
fig = inv.plot(show=False)
cat.plot(fig=fig)
"""
from obspy.imaging.maps import plot_map
import matplotlib.pyplot as plt
# The empty ones must be kept as otherwise inventory files without
# channels will end up with nothing.
inv = self.select(time=time, keep_empty=True)
# lat/lon coordinates, magnitudes, dates
lats = []
lons = []
labels = []
colors = []
if color_per_network and not isinstance(color_per_network, dict):
from matplotlib.cm import get_cmap
codes = set([n.code for n in inv])
cmap = get_cmap(name=colormap, lut=len(codes))
color_per_network = dict([(code, cmap(i))
for i, code in enumerate(sorted(codes))])
for net in inv:
for sta in net:
if sta.latitude is None or sta.longitude is None:
msg = ("Station '%s' does not have latitude/longitude "
"information and will not be plotted." % label)
warnings.warn(msg)
continue
if color_per_network:
label_ = " %s" % sta.code
color_ = color_per_network.get(net.code, "k")
else:
label_ = " " + ".".join((net.code, sta.code))
color_ = color
lats.append(sta.latitude)
lons.append(sta.longitude)
labels.append(label_)
colors.append(color_)
if not label:
labels = None
fig = plot_map(method, lons, lats, size, colors, labels,
projection=projection, resolution=resolution,
continent_fill_color=continent_fill_color,
water_fill_color=water_fill_color,
colormap=None, colorbar=False, marker=marker,
title=None, show=False, fig=fig, **kwargs)
if legend is not None and color_per_network:
ax = fig.axes[0]
count = len(ax.collections)
for code, color in sorted(color_per_network.items()):
ax.scatter([0], [0], size, color, label=code, marker=marker)
# workaround for older matplotlib versions
try:
ax.legend(loc=legend, fancybox=True, scatterpoints=1,
fontsize="medium", markerscale=0.8,
handletextpad=0.1)
except TypeError:
leg_ = ax.legend(loc=legend, fancybox=True, scatterpoints=1,
markerscale=0.8, handletextpad=0.1)
leg_.prop.set_size("medium")
# remove collections again solely created for legend handles
ax.collections = ax.collections[:count]
if outfile:
fig.savefig(outfile)
else:
if show:
plt.show()
return fig
[docs] def plot_response(self, min_freq, output="VEL", network="*", station="*",
location="*", channel="*", time=None, starttime=None,
endtime=None, axes=None, unwrap_phase=False,
plot_degrees=False, show=True, outfile=None,
label_epoch_dates=False):
"""
Show bode plot of instrument response of all (or a subset of) the
inventory's channels.
:type min_freq: float
:param min_freq: Lowest frequency to plot.
:type output: str
:param output: Output units. One of:
* ``"DISP"`` -- displacement, output unit is meters;
* ``"VEL"`` -- velocity, output unit is meters/second; or,
* ``"ACC"`` -- acceleration, output unit is meters/second**2.
:type network: str
:param network: Only plot matching networks. Accepts UNIX style
patterns and wildcards (e.g. ``"G*"``, ``"*[ER]"``; see
:func:`~fnmatch.fnmatch`)
:type station: str
:param station: Only plot matching stations. Accepts UNIX style
patterns and wildcards (e.g. ``"L44*"``, ``"L4?A"``,
``"[LM]44A"``; see :func:`~fnmatch.fnmatch`)
:type location: str
:param location: Only plot matching channels. Accepts UNIX style
patterns and wildcards (e.g. ``"BH*"``, ``"BH?"``, ``"*Z"``,
``"[LB]HZ"``; see :func:`~fnmatch.fnmatch`)
:type channel: str
:param channel: Only plot matching channels. Accepts UNIX style
patterns and wildcards (e.g. ``"BH*"``, ``"BH?"``, ``"*Z"``,
``"[LB]HZ"``; see :func:`~fnmatch.fnmatch`)
:type time: :class:`~obspy.core.utcdatetime.UTCDateTime`
:param time: Only regard networks/stations/channels active at given
point in time.
:type starttime: :class:`~obspy.core.utcdatetime.UTCDateTime`
:param starttime: Only regard networks/stations/channels active at or
after given point in time (i.e. networks ending before given time
will not be shown).
:type endtime: :class:`~obspy.core.utcdatetime.UTCDateTime`
:param endtime: Only regard networks/stations/channels active before or
at given point in time (i.e. networks starting after given time
will not be shown).
:type axes: list of 2 :class:`matplotlib.axes.Axes`
:param axes: List/tuple of two axes instances to plot the
amplitude/phase spectrum into. If not specified, a new figure is
opened.
:type unwrap_phase: bool
:param unwrap_phase: Set optional phase unwrapping using NumPy.
:type plot_degrees: bool
:param plot_degrees: if ``True`` plot bode in degrees
:type show: bool
:param show: Whether to show the figure after plotting or not. Can be
used to do further customization of the plot before showing it.
:type outfile: str
:param outfile: Output file path to directly save the resulting image
(e.g. ``"/tmp/image.png"``). Overrides the ``show`` option, image
will not be displayed interactively. The given path/file name is
also used to automatically determine the output format. Supported
file formats depend on your matplotlib backend. Most backends
support png, pdf, ps, eps and svg. Defaults to ``None``.
:type label_epoch_dates: bool
:param label_epoch_dates: Whether to add channel epoch dates in the
plot's legend labels.
.. rubric:: Basic Usage
>>> from obspy import read_inventory
>>> inv = read_inventory()
>>> inv.plot_response(0.001, station="RJOB") # doctest: +SKIP
.. plot::
from obspy import read_inventory
inv = read_inventory()
inv.plot_response(0.001, station="RJOB")
"""
import matplotlib.pyplot as plt
if axes is not None:
ax1, ax2 = axes
fig = ax1.figure
else:
fig = plt.figure()
ax1 = fig.add_subplot(211)
ax2 = fig.add_subplot(212, sharex=ax1)
matching = self.select(network=network, station=station,
location=location, channel=channel, time=time,
starttime=starttime, endtime=endtime)
for net in matching.networks:
for sta in net.stations:
for cha in sta.channels:
label = _response_plot_label(
net, sta, cha, label_epoch_dates=label_epoch_dates)
try:
cha.plot(min_freq=min_freq, output=output,
axes=(ax1, ax2), label=label,
unwrap_phase=unwrap_phase,
plot_degrees=plot_degrees, show=False,
outfile=None)
except ZeroSamplingRate:
msg = ("Skipping plot of channel with zero "
"sampling rate:\n%s")
warnings.warn(msg % str(cha), UserWarning)
except ObsPyException as e:
msg = "Skipping plot of channel (%s):\n%s"
warnings.warn(msg % (str(e), str(cha)), UserWarning)
# final adjustments to plot if we created the figure in here
if axes is None:
from obspy.core.inventory.response import _adjust_bode_plot_figure
_adjust_bode_plot_figure(fig, plot_degrees, show=False)
if outfile:
fig.savefig(outfile)
else:
if show:
plt.show()
return fig
if __name__ == '__main__':
import doctest
doctest.testmod(exclude_empty=True)