# Licensed under a 3-clause BSD style license - see LICENSE.rst
from astropy.table import Table, Column
import astropy.units as u
from astropy import coordinates
from astroquery.ipac.irsa.irsa_dust import utils
from astroquery.ipac.irsa.irsa_dust import conf
from astroquery.utils import commons
from astroquery.query import BaseQuery
# TODO Add support for server url from JSON cache
__all__ = ["IrsaDust", "IrsaDustClass"]
EXT_DESC = "E(B-V) Reddening"
EM_DESC = "100 Micron Emission"
TEMP_DESC = "Dust Temperature"
INPUT = "input"
OBJ_NAME = "objname"
REG_SIZE = "regSize"
DESC = "desc"
IMAGE_URL = "imageUrl"
STATISTICS = "statistics"
REF_PIXEL_VALUE = "refPixelValue"
REF_COORDINATE = "refCoordinate"
MEAN_VALUE = "meanValue"
STD = "std"
MAX_VALUE = "maxValue"
MIN_VALUE = "minValue"
SANDF = "SandF"
SFD = "SFD"
DATA_IMAGE = "./data/image"
DATA_TABLE = "./data/table"
[docs]class IrsaDustClass(BaseQuery):
DUST_SERVICE_URL = conf.server
TIMEOUT = conf.timeout
image_type_to_section = {
'temperature': 't',
'ebv': 'r',
'100um': 'e'
}
[docs] def get_images(self, coordinate, radius=None,
image_type=None, timeout=TIMEOUT, get_query_payload=False,
show_progress=True):
"""
A query function that performs a coordinate-based query to acquire
Irsa-Dust images.
Parameters
----------
coordinate : str
Can be either the name of an object or a coordinate string
If a name, must be resolvable by NED, SIMBAD, 2MASS, or SWAS.
Examples of acceptable coordinate strings, can be found `here.
<https://irsa.ipac.caltech.edu/applications/DUST/docs/coordinate.html>`_
radius : str / `~astropy.units.Quantity`, optional
The size of the region to include in the dust query, in radian,
degree or hour as per format specified by
`~astropy.coordinates.Angle` or `~astropy.units.Quantity`.
Defaults to 5 degrees.
image_type : str, optional
When missing returns for all the images. Otherwise returns only
for image of the specified type which must be one of
``'temperature'``, ``'ebv'``, ``'100um'``. Defaults to `None`.
timeout : int, optional
Time limit for establishing successful connection with remote
server. Defaults to `~astroquery.ipac.irsa.irsa_dust.IrsaDustClass.TIMEOUT`.
get_query_payload : bool, optional
If `True` then returns the dictionary of query parameters, posted
to remote server. Defaults to `False`.
Returns
-------
A list of `~astropy.io.fits.HDUList` objects
"""
if get_query_payload:
return self._args_to_payload(coordinate, radius=radius)
readable_objs = self.get_images_async(
coordinate, radius=radius, image_type=image_type, timeout=timeout,
get_query_payload=get_query_payload, show_progress=show_progress)
return [obj.get_fits() for obj in readable_objs]
[docs] def get_images_async(self, coordinate, radius=None, image_type=None,
timeout=TIMEOUT, get_query_payload=False,
show_progress=True):
"""
A query function similar to
`astroquery.ipac.irsa.irsa_dust.IrsaDustClass.get_images` but returns
file-handlers to the remote files rather than downloading
them. Useful for asynchronous queries so that the actual download
may be performed later.
Parameters
----------
coordinate : str
Can be either the name of an object or a coordinate string
If a name, must be resolvable by NED, SIMBAD, 2MASS, or SWAS.
Examples of acceptable coordinate strings, can be found `here.
<https://irsa.ipac.caltech.edu/applications/DUST/docs/coordinate.html>`_
radius : str / `~astropy.units.Quantity`, optional
The size of the region to include in the dust query, in radian,
degree or hour as per format specified by
`~astropy.coordinates.Angle` or `~astropy.units.Quantity`.
Defaults to 5 degrees.
image_type : str, optional
When missing returns for all the images. Otherwise returns only
for image of the specified type which must be one of
``'temperature'``, ``'ebv'``, ``'100um'``. Defaults to `None`.
timeout : int, optional
Time limit for establishing successful connection with remote
server. Defaults to `~astroquery.ipac.irsa.irsa_dust.IrsaDustClass.TIMEOUT`.
get_query_payload : bool, optional
If `True` then returns the dictionary of query parameters, posted
to remote server. Defaults to `False`.
Returns
--------
list : list
A list of context-managers that yield readable file-like objects.
"""
if get_query_payload:
return self._args_to_payload(coordinate, radius=radius)
image_urls = self.get_image_list(
coordinate, radius=radius, image_type=image_type, timeout=timeout)
# Images are assumed to be FITS files
# they MUST be read as binary for python3 to parse them
return [commons.FileContainer(U, encoding='binary',
show_progress=show_progress)
for U in image_urls]
[docs] def get_image_list(self, coordinate, radius=None, image_type=None,
timeout=TIMEOUT):
"""
Query function that performs coordinate-based query and returns a list
of URLs to the Irsa-Dust images.
Parameters
-----------
coordinate : str
Can be either the name of an object or a coordinate string
If a name, must be resolvable by NED, SIMBAD, 2MASS, or SWAS.
Examples of acceptable coordinate strings, can be found `here.
<https://irsa.ipac.caltech.edu/applications/DUST/docs/coordinate.html>`_
radius : str / `~astropy.units.Quantity`, optional
The size of the region to include in the dust query, in radian,
degree or hour as per format specified by
`~astropy.coordinates.Angle` or `~astropy.units.Quantity`.
Defaults to 5 degrees.
image_type : str, optional
When missing returns for all the images. Otherwise returns only
for image of the specified type which must be one of
``'temperature'``, ``'ebv'``, ``'100um'``. Defaults to `None`.
timeout : int, optional
Time limit for establishing successful connection with remote
server. Defaults to `~astroquery.ipac.irsa.irsa_dust.IrsaDustClass.TIMEOUT`.
get_query_payload : bool
If `True` then returns the dictionary of query parameters, posted
to remote server. Defaults to `False`.
Returns
--------
url_list : list
A list of URLs to the FITS images corresponding to the queried
object.
"""
url = self.DUST_SERVICE_URL
request_payload = self._args_to_payload(coordinate, radius=radius)
response = self._request("POST", url, data=request_payload,
timeout=timeout)
return self.extract_image_urls(response.text, image_type=image_type)
[docs] def get_extinction_table(self, coordinate, radius=None, timeout=TIMEOUT,
show_progress=True):
"""
Query function that fetches the extinction table from the query
result.
Parameters
----------
coordinate : str
Can be either the name of an object or a coordinate string
If a name, must be resolvable by NED, SIMBAD, 2MASS, or SWAS.
Examples of acceptable coordinate strings, can be found `here.
<https://irsa.ipac.caltech.edu/applications/DUST/docs/coordinate.html>`_
radius : str / `~astropy.units.Quantity`, optional
The size of the region to include in the dust query, in radian,
degree or hour as per format specified by
`~astropy.coordinates.Angle` or `~astropy.units.Quantity`.
Defaults to 5 degrees.
timeout : int, optional
Time limit for establishing successful connection with remote
server. Defaults to `~astroquery.ipac.irsa.irsa_dust.IrsaDustClass.TIMEOUT`.
Returns
--------
table : `~astropy.table.Table`
"""
readable_obj = self.get_extinction_table_async(
coordinate, radius=radius, timeout=timeout,
show_progress=show_progress)
# guess=False to suppress error messages related to bad guesses
table = Table.read(readable_obj.get_string(), format='ipac',
guess=False)
# Fix up units: 'micron' and 'mag', not 'microns' and 'mags'
for column in table.columns.values():
if str(column.unit) in {'microns', 'mags'}:
column.unit = str(column.unit)[:-1]
return table
[docs] def get_extinction_table_async(self, coordinate, radius=None,
timeout=TIMEOUT, show_progress=True):
"""
A query function similar to
`astroquery.ipac.irsa.irsa_dust.IrsaDustClass.get_extinction_table` but
returns a file-handler to the remote files rather than downloading
it. Useful for asynchronous queries so that the actual download may
be performed later.
Parameters
----------
coordinate : str
Can be either the name of an object or a coordinate string
If a name, must be resolvable by NED, SIMBAD, 2MASS, or SWAS.
Examples of acceptable coordinate strings, can be found `here.
<https://irsa.ipac.caltech.edu/applications/DUST/docs/coordinate.html>`_
radius : str, optional
The size of the region to include in the dust query, in radian,
degree or hour as per format specified by
`~astropy.coordinates.Angle`. Defaults to 5 degrees.
timeout : int, optional
Time limit for establishing successful connection with remote
server. Defaults to `~astroquery.ipac.irsa.irsa_dust.IrsaDustClass.TIMEOUT`.
Returns
-------
result : A context manager that yields a file like readable object.
"""
url = self.DUST_SERVICE_URL
request_payload = self._args_to_payload(coordinate, radius=radius)
response = self._request("POST", url, data=request_payload,
timeout=timeout)
xml_tree = utils.xml(response.text)
result = SingleDustResult(xml_tree, coordinate)
return commons.FileContainer(result.ext_detail_table(),
show_progress=show_progress)
[docs] def get_query_table(self, coordinate, radius=None,
section=None, timeout=TIMEOUT, url=DUST_SERVICE_URL):
"""
Create and return an `~astropy.table.Table` representing the query
response(s).
When ``section`` is missing, returns the full table. When a
section is specified (``'location'``, ``'temperature'``, ``'ebv'``, or
``'100um'``), only that portion of the table is returned.
Parameters
----------
coordinate : str
Can be either the name of an object or a coordinate string
If a name, must be resolvable by NED, SIMBAD, 2MASS, or SWAS.
Examples of acceptable coordinate strings, can be found `here.
<https://irsa.ipac.caltech.edu/applications/DUST/docs/coordinate.html>`_
radius : str / `~astropy.units.Quantity`, optional
The size of the region to include in the dust query, in radian,
degree or hour as per format specified by
`~astropy.coordinates.Angle` or `~astropy.units.Quantity`.
Defaults to 5 degrees.
section : str, optional
When missing, all the sections of the query result are returned.
Otherwise only the specified section (``'ebv'``, ``'100um'``,
``'temperature'``, ``'location'``) is returned. Defaults to `None`.
timeout : int, optional
Time limit for establishing successful connection with remote
server. Defaults to `~astroquery.ipac.irsa.irsa_dust.IrsaDustClass.TIMEOUT`.
url : str, optional
Only provided for debugging. Should generally not be assigned.
Defaults to `~astroquery.ipac.irsa.irsa_dust.IrsaDustClass.DUST_SERVICE_URL`.
Returns
--------
table : `~astropy.table.Table`
Table representing the query results, (all or as per specified).
"""
request_payload = self._args_to_payload(coordinate, radius=radius)
response = self._request("POST", url, data=request_payload,
timeout=timeout)
xml_tree = utils.xml(response.text)
result = SingleDustResult(xml_tree, coordinate)
if section is None or section in ["location", "loc", "l"]:
return result.table(section=section)
try:
section = self.image_type_to_section[section]
return result.table(section=section)
except KeyError:
msg = ('section must be one of the following:\n'
'ebv, temperature, location or 100um.')
raise ValueError(msg)
def _args_to_payload(self, coordinate, radius=None):
"""
Accepts the query parameters and returns a dictionary
suitable to be sent as data via a HTTP POST request.
Parameters
----------
coordinate : str
Can be either the name of an object or a coordinate string
If a name, must be resolvable by NED, SIMBAD, 2MASS, or SWAS.
Examples of acceptable coordinate strings, can be found `here
<https://irsa.ipac.caltech.edu/applications/DUST/docs/coordinate.html>`_
radius : str / `~astropy.units.Quantity`, optional
The size of the region to include in the dust query, in radian,
degree or hour as per format specified by
`~astropy.coordinates.Angle` or `~astropy.units.Quantity`.
Defaults to 5 degrees.
Returns
-------
payload : dict
A dictionary that specifies the data for an HTTP POST request
"""
if isinstance(coordinate, str):
try:
# If the coordinate is a resolvable name, pass that name
# directly to irsa_dust because it can handle it (and that
# changes the return value associated metadata)
C = commons.ICRSCoord.from_name(coordinate)
payload = {"locstr": coordinate}
except coordinates.name_resolve.NameResolveError:
C = commons.parse_coordinates(coordinate).transform_to('fk5')
# check if this is resolvable?
payload = {"locstr": "{0} {1}".format(C.ra.deg, C.dec.deg)}
elif isinstance(coordinate, coordinates.SkyCoord):
C = coordinate.transform_to('fk5')
payload = {"locstr": "{0} {1}".format(C.ra.deg, C.dec.deg)}
# check if radius is given with proper units
if radius is not None:
reg_size = coordinates.Angle(radius).deg
# check if radius falls in the acceptable range
if reg_size < 2 or reg_size > 37.5:
raise ValueError("Radius (in any unit) must be in the"
" range of 2.0 to 37.5 degrees")
payload["regSize"] = reg_size
return payload
[docs] def list_image_types(self):
"""
Returns a list of image_types available in the Irsa Dust
query results
"""
return [key for key in self.image_type_to_section]
class SingleDustResult:
"""
Represents the response to a dust query for a single object or location.
Provides methods to return the response as an `~astropy.table.Table`,
and to retrieve FITS images listed as urls in the initial response. It
can also return the url to a detailed extinction table provided in the
initial response. Not intended to be instantiated by the end user.
"""
def __init__(self, xml_tree, query_loc=None):
"""
Parameters
----------
xml_root : `xml.etree.ElementTree`
the xml tree representing the response to the query
query_loc : str
the location string specified in the query
"""
self._xml = xml_tree
self._query_loc = query_loc
self._location_section = LocationSection(xml_tree)
ext_node = utils.find_result_node(EXT_DESC, xml_tree)
self._ext_section = ExtinctionSection(ext_node)
em_node = utils.find_result_node(EM_DESC, xml_tree)
self._em_section = EmissionSection(em_node)
temp_node = utils.find_result_node(TEMP_DESC, xml_tree)
self._temp_section = TemperatureSection(temp_node)
self._result_sections = [self._location_section, self._ext_section,
self._em_section, self._temp_section]
@property
def query_loc(self):
"""Return the location string used in the query."""
return self._query_loc
@property
def xml(self):
"""Return the raw xml underlying this SingleDustResult."""
return self._xml
def table(self, section=None):
"""
Create and return a `~astropy.table.Table` representing the query
response.
Parameters
----------
section : str
(optional) the name of the section to include in the table.
If not provided, the entire table will be returned.
"""
code = self._section_code(section)
if code == "all":
return self._table_all()
else:
return self._table(code)
def values(self, section=None):
"""
Return the data values contained in the query response,
i.e. the list of values corresponding to a row in the result table.
Parameters
----------
section : str
the name of the section to include in the response
If no section is given, all sections will be included.
"""
code = self._section_code(section)
sections = self._sections(code)
values = []
for sec in sections:
values.extend(sec.values())
return values
def _section_code(self, section):
"""
Return a one-letter code identifying the section.
Parameters
----------
section : str
the name or abbreviated name of the section
Returns
-------
str: a one-letter code identifying the section.
"""
if section is None or section == "all":
return "all"
else:
if section in ["location", "loc", "l"]:
return "l"
elif section in ["reddening", "red", "r"]:
return "r"
elif section in ["emission", "em", "e"]:
return "e"
elif section in ["temperature", "temp", "t"]:
return "t"
else:
msg = """section must be one of the following:
'all',
'location', 'loc', 'l',
'reddening', 'red', 'r',
'emission', 'em', 'e',
'temperature', 'temp', 't'."""
raise ValueError(msg)
def _sections(self, code):
"""
Parameters
----------
code : str
the one-letter code name of the section
Returns
-------
The section corresponding to the code, or a list containing all
sections if no section is provided.
"""
if code == 'l':
return [self._location_section]
elif code == 'r':
return [self._ext_section]
elif code == 'e':
return [self._em_section]
elif code == 't':
return [self._temp_section]
return [self._location_section, self._ext_section, self._em_section,
self._temp_section]
def _table_all(self):
"""
Create and return the full table containing all four sections:
location, extinction, emission, and temperature.
Returns
-------
table : `~astropy.table.Table`
table containing the data from the query response
"""
columns = (self._location_section.columns + self._ext_section.columns +
self._em_section.columns + self._temp_section.columns)
table = Table(data=columns)
values = self.values()
table.add_row(vals=values)
return table
def _table(self, section):
"""
Create and return a smaller table containing only one section
of the overall DustResult table.
Parameters
----------
section : str
a string indicating the section to be returned
"""
# Get the specified section
section_object = self._sections(section)[0]
# Create the table
columns = section_object.columns
table = Table(data=columns)
# Populate the table
values = section_object.values()
table.add_row(vals=values)
return table
def ext_detail_table(self):
"""
Get the url of the additional, detailed table of extinction data for
various filters. There is a url for this table given in the initial
response to the query.
Returns
-------
table_url : str
url of the detailed table of extinction data by filter
"""
table_url = self._ext_section.table_url
# response = utils.ext_detail_table(table_url)
# if sys.version_info > (3, 0):
# read_response = response.read().decode("utf-8")
# else:
# read_response = response.read()
# table = Table.read(read_response, format="ipac")
# return table
return table_url
def image(self, section):
"""
Get the FITS image url associated with the given section.
The extinction, emission, and temperature sections each provide
a url to a FITS image.
Parameters
----------
section : str
the name of the section
Returns
-------
url : str
the url to the FITS image
"""
# Get the url of the image for the given section
image_url = None
if section in ["reddening", "red", "r"]:
image_url = self._ext_section.image_url
elif section in ["emission", "em", "e"]:
image_url = self._em_section.image_url
elif section in ["temperature", "temp", "t"]:
image_url = self._temp_section.image_url
if image_url is None:
msg = """section must be one of the following values:
'reddening', 'red', 'r',
'emission', 'em', 'e',
'temperature', 'temp', 't'"""
raise ValueError(msg)
return image_url
def __str__(self):
"""Return a string representation of the table."""
string = "[DustResult: \n\t"
for section in self._result_sections:
if len(string) > 15:
string += ",\n\t"
string += section.__str__()
string += "]"
return string
class BaseDustNode:
"""
A node in the result xml that has been enhanced to return values and
Columns appropriate to its type (String, Number, or Coord).
"""
def __init__(self, xml_node):
"""
Parameters
----------
xml_node : `xml.etree.ElementTree`
the xml node that provides the raw data for this DustNode
"""
self._name = xml_node.tag
def set_value(self, node_text):
"""Override in subclasses."""
pass
@property
def name(self):
"""Return the xml node name."""
return self._name
@property
def value(self):
"""Return the value extracted from the node."""
return self._value
@property
def columns(self):
"""Return the column or columns associated with this item in the
`~astropy.table.Table`."""
return self._columns
def __str__(self):
"""Return a string representation of this item."""
col_str = "[Column: "
for column in self._columns:
for format_str in column.pformat(show_units=True):
col_str += format_str
string = "name: " + self._name + ", " + col_str + "]"
return string
class StringNode(BaseDustNode):
"""
A node that contains text.
"""
def __init__(self, xml_node, col_name, length):
"""
Parameters
----------
xml_node : `xml.etree.ElementTree`
the xml node that provides the raw data for this DustNode
col_name : str
the name of the column associated with this item
length : int
the size of the column associated with this item
"""
BaseDustNode.__init__(self, xml_node)
self._value = xml_node.text.strip()
self._length = length
self._columns = [Column(name=col_name, dtype="S" + str(length))]
def __str__(self):
"""Return a string representation of this item."""
base_string = BaseDustNode.__str__(self)
string = ("[StringNode: " + base_string +
", value: " + self._value + "]")
return string
class NumberNode(BaseDustNode):
"""
A node that contains a number. Outputs a single column containing the
number.
"""
def __init__(self, xml_node, col_name, units=None):
"""
Parameters
----------
xml_node : `xml.etree.ElementTree`
the xml node that provides the raw data for this DustNode
col_name : str
the name of the column associated with this item
units : `~astropy.units.Unit`
the units associated with this item
"""
BaseDustNode.__init__(self, xml_node)
self._value = utils.parse_number(xml_node.text)
self._columns = [Column(name=col_name, unit=units)]
def __str__(self):
"""Return a string representation of the item."""
base_string = BaseDustNode.__str__(self)
string = ("[NumberNode: " + base_string +
", value: " + str(self._value) + "]")
return string
class CoordNode(BaseDustNode):
"""
A node that contains RA, Dec coordinates. Outputs three values /
columns: RA, Dec and a coordinate system description string.
"""
def __init__(self, xml_node, col_names):
"""
Parameters
----------
xml_node : `xml.etree.ElementTree`
the xml node that provides the raw data for this DustNode
col_names : str
the names of the columns associated with this item
"""
BaseDustNode.__init__(self, xml_node)
self._value = utils.parse_coords(xml_node.text)
units = u.deg
self._columns = [Column(name=col_names[0], unit=units),
Column(name=col_names[1], unit=units),
Column(name=col_names[2], dtype="S25")]
def __str__(self):
"""Return a string representation of the item."""
base_string = BaseDustNode.__str__(self)
values_str = ("values: " + str(self._value[0]) + ", " +
str(self._value[1]) + ", " + str(self._value[2]))
string = ("[CoordNode: " + base_string + ", " + values_str + "]")
return string
class BaseResultSection:
"""
Represents a group of related nodes/columns in a DustResults object.
A DustResults table contains four main sections:
1-location
2-extinction
3-emission
4-temperature
In addition, the extinction, emission, and temperature sections
each contain a nested statistics subsection.
"""
def node_dict(self, names, xml_root):
"""
Find all the nodes with the given names under the given root,
and put them in a dictionary.
Parameters
----------
names : list[str]
the names of the nodes to find
xml_root : `xml.etree.ElementTree`
the root of the xml tree to search
Returns
-------
nodes : dictionary
a dictionary of xml nodes, where the keys are the node names
"""
nodes = {}
for name in names:
found_node = xml_root.find(name)
if found_node is None:
raise ValueError("Could not find node '" + name + "'")
nodes[name] = found_node
return nodes
def create_columns(self):
"""Build the columns associated with this section."""
columns = []
for dust_node in self._dust_nodes:
if isinstance(dust_node._columns, list):
columns.extend(dust_node._columns)
else:
columns.append(dust_node._columns)
self._columns = columns
@property
def columns(self):
"""Return the list of columns associated with this section."""
return self._columns
def values(self):
"""Return the list of data values associated with this section,
i.e. the data corresponding to a single row in the results table."""
values = []
for dust_node in self._dust_nodes:
if isinstance(dust_node._value, list):
values.extend(dust_node._value)
else:
values.append(dust_node._value)
return values
def __str__(self):
"""Return a string representation of the section."""
string = "\n\t\t"
for dust_node in self._dust_nodes:
if len(string) > 6:
string += ",\n\t\t"
string += dust_node.__str__()
return string
class LocationSection(BaseResultSection):
"""
The location section of the DustResults object.
"""
def __init__(self, xml_root):
"""
Parameters
----------
xml_root : `xml.etree.ElementTree`
the xml tree where the data for this section resides
"""
location_node = xml_root.find(INPUT)
names = [OBJ_NAME, REG_SIZE]
xml_nodes = self.node_dict(names, location_node)
# Create the section's DustNodes
self._dust_nodes = [CoordNode(
xml_nodes[OBJ_NAME], col_names=["RA", "Dec", "coord sys"]),
NumberNode(xml_nodes[REG_SIZE], REG_SIZE, u.deg)]
self.create_columns()
def __str__(self):
"""Return a string representation of the section."""
base_string = BaseResultSection.__str__(self)
string = "[LocationSection: " + base_string + "]"
return string
class StatsSection(BaseResultSection):
"""
The statistics subsection of one of an extinction, emission, or temperature
section.
"""
def __init__(self, xml_root, col_prefix, suffix=""):
"""
Parameters
----------
xml_root : `xml.etree.ElementTree`
The xml tree containing the data for this section
col_prefix : str
the prefix to use in column names for this section
suffix : str
the suffix that appears in the node names (e.g. 'SandF' or 'SDF')
"""
names = [
REF_PIXEL_VALUE + suffix,
REF_COORDINATE,
MEAN_VALUE + suffix,
STD + suffix,
MAX_VALUE + suffix,
MIN_VALUE + suffix]
xml_nodes = self.node_dict(names, xml_root)
# Create the DustNodes
self._dust_nodes = [
NumberNode(xml_nodes[REF_PIXEL_VALUE + suffix],
col_prefix + " ref"),
CoordNode(xml_nodes[REF_COORDINATE],
col_names=[col_prefix + " ref RA",
col_prefix + " ref Dec",
col_prefix + " ref coord sys"]),
NumberNode(xml_nodes[MEAN_VALUE + suffix], col_prefix + " mean"),
NumberNode(xml_nodes[STD + suffix], col_prefix + " std"),
NumberNode(xml_nodes[MAX_VALUE + suffix], col_prefix + " max"),
NumberNode(xml_nodes[MIN_VALUE + suffix], col_prefix + " min")]
self._units = utils.parse_units(
xml_nodes[REF_PIXEL_VALUE + suffix].text)
self.create_columns()
@property
def units(self):
"""Return the units associated with this section."""
return self._units
@property
def dust_nodes(self):
"""Return the list of DustNodes in this section."""
return self._dust_nodes
def __str__(self):
"""Return a string representation of the section."""
base_string = "\n\t\t\t\t"
for dust_node in self._dust_nodes:
if len(base_string) > 6:
base_string += ",\n\t\t\t\t"
base_string += dust_node.__str__()
string = "\n\t\t\t[StatisticsSection: " + base_string + "]"
return string
class ExtinctionSection(BaseResultSection):
"""
The extinction (reddening) section in a DustResults object.
"""
def __init__(self, xml_root):
"""
Parameters
----------
xml_root : `xml.etree.ElementTree`
The xml tree containing the data for this section
"""
# Find the section's xml nodes
names = [DESC, DATA_IMAGE, DATA_TABLE, STATISTICS]
xml_nodes = self.node_dict(names, xml_root)
# Build the DustNodes
self._dust_nodes = [StringNode(xml_nodes[DESC], "ext desc", 100),
StringNode(xml_nodes[DATA_IMAGE],
"ext image", 255),
StringNode(xml_nodes[DATA_TABLE],
"ext table", 255)]
# Create statistics subsections
self._stats_sandf = StatsSection(xml_nodes[STATISTICS],
"ext SandF", "SandF")
self._stats_sfd = StatsSection(xml_nodes[STATISTICS], "ext SFD", "SFD")
self.create_columns()
def create_columns(self):
"""Build the columns associated with this section."""
BaseResultSection.create_columns(self)
self._columns.extend(self._stats_sandf.columns)
self._columns.extend(self._stats_sfd.columns)
@property
def table_url(self):
"""Return the url where the extinction detail table can be found."""
table_url = self._dust_nodes[2]._value
return table_url
@property
def image_url(self):
"""Return the url of the FITS image associated with this section."""
return self._dust_nodes[1]._value
def values(self):
"""Return the data values associated with this section, i.e. the
list of values corresponding to a single row in the results
table."""
ext_values = BaseResultSection.values(self)
ext_values.extend(self._stats_sandf.values())
ext_values.extend(self._stats_sfd.values())
return ext_values
def __str__(self):
"""Return a string representation of the section."""
base_string = BaseResultSection.__str__(self)
string = ("[ExtinctionSection: " + base_string +
self._stats_sandf.__str__() +
self._stats_sfd.__str__() + "]")
return string
class EmissionSection(BaseResultSection):
"""
The emission section in a DustResults object.
"""
def __init__(self, xml_root):
"""
Parameters
----------
xml_root : `xml.etree.ElementTree`
The xml tree containing the data for this section
"""
names = [DESC, DATA_IMAGE, STATISTICS]
xml_nodes = self.node_dict(names, xml_root)
# Create the DustNodes
self._dust_nodes = [StringNode(xml_nodes[DESC], "em desc", 100),
StringNode(xml_nodes[DATA_IMAGE], "em image", 255)]
# Create the statistics subsection
self._stats = StatsSection(xml_nodes[STATISTICS], "em")
self.create_columns()
def create_columns(self):
"""Build the columns associated with this section."""
BaseResultSection.create_columns(self)
self._columns.extend(self._stats.columns)
def values(self):
"""Return the data values associated with this section, i.e. the
list of values corresponding to a single row in the results table."""
values = BaseResultSection.values(self)
values.extend(self._stats.values())
return values
@property
def image_url(self):
"""Return the url of the FITS image associated with this section."""
return self._dust_nodes[1]._value
def __str__(self):
"""Return a string representation of the section."""
base_string = BaseResultSection.__str__(self)
string = "[EmissionSection: " + \
base_string + self._stats.__str__() + "]"
return string
IrsaDust = IrsaDustClass()
class TemperatureSection(BaseResultSection):
"""
The temperature section in a DustResults object.
"""
def __init__(self, xml_root):
"""
Parameters
----------
xml_root : `xml.etree.ElementTree`
The xml tree containing the data for this section
"""
names = [DESC, DATA_IMAGE, STATISTICS]
xml_nodes = self.node_dict(names, xml_root)
# Create the DustNodes
self._dust_nodes = [StringNode(xml_nodes[DESC], "temp desc", 100),
StringNode(xml_nodes[DATA_IMAGE],
"temp image", 255)]
# Create the statistics subsection
self._stats = StatsSection(xml_nodes[STATISTICS], "temp")
self.create_columns()
def create_columns(self):
"""Build the columns associated with this section."""
BaseResultSection.create_columns(self)
self._columns.extend(self._stats.columns)
def values(self):
"""Return the data values associated with this section, i.e. the
list of values corresponding to a single row in the results
table."""
values = BaseResultSection.values(self)
values.extend(self._stats.values())
return values
@property
def image_url(self):
"""Return the url of the FITS image associated with this section."""
return self._dust_nodes[1]._value
def __str__(self):
"""Return a string representation of the section."""
base_string = BaseResultSection.__str__(self)
string = "[TemperatureSection: " + \
base_string + self._stats.__str__() + "]"
return string