| Commit message (Collapse) | Author | Age | Files | Lines |
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Optimize "make_coordinate_grid()" using "numba.jit", which improves the
speed a bit, since the other two functions (i.e., "make_grid_ellipse()",
and "map_grid_to_healpix()") are much slow and time-consuming.
TODO: optimize "make_grid_ellipse()" and "map_grid_to_healpix()"
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* Optimize the "Fnu_to_Tb()" and "Sb_to_Tb()" functions by explicitly
calculating the conversions, avoiding the slow `astropy.unit`
conversions (which is rather slow). The new fast functions are named
as "Fnu_to_Tb_fast()" and "Sb_to_Tb_fast()".
* Optimize the new functions using `numba.jit` further.
* Add `numba` to the dependencies.
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* Fix several bugs, e.g., typo, wrong quantity operation, etc.
* Add new method "_calc_specindex()", also allow further improvement
* Improve docstrings, comments, and log messages.
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Support simulate the radio emission from clusters of galaxies.
Currently only the radio halos is considered, while the radio relics
need more investigations.
Also, this simulation requires a cluster catalog derived from the Hubble
Volume Project simulation.
NOTE: not tested at the moment
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Currently implement "spherical_uniform()" to generate random points
uniformly distributed on the spherical surface.
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When two quantities of same unit class divides, to get the correct
numerical value, whether use `.decompose().value`, or just convert to
plain Python object, e.g., `float(...)`, which will fail if the input
quantity is not dimensionless.
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All HEALPix maps used are in *RING* ordering.
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* freefree.py: Add the missing "/" to the config "halphamap"
* synchrotron.py: Fix "comp" to have the correct value
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* Fix the wrong import path
* Add the missing "output_dir" property
* Tweak the comments/messages a bit
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This module provides a simple/easy-to-use interface to the simulation of
various supported foreground components.
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* Add the "preprocess()" and "postprocess()" for a better interface;
* Add "_make_filepath()" to compose the output filename;
* Reorder some methods for consistency.
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* Add the "preprocess()" and "postprocess()" for a better interface;
* Add "_make_filepath()" to compose the output filename;
* Reorder some methods for consistency;
* Some refactorings and cleanups.
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* Add "preprocess()" and "postprocess()" methods
* Add the "name" property
* Tweak the places of preparation procedures been invoked
* Reorder some methods
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Barely test and seems OK.
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The "filter()" returns an iterator, that is consumed after the use,
therefore, the "specfiles" is used by the print under "DEBUG_FG21SIM".
Then "specfiles" is empty and thus prevents the reading of the
specification files.
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Also update the general config for the new "galactic/snr" component.
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The necessary but missing functionalities to simulate the Galactic SNRs
emission maps are implemented, and this new emission component is ready
for testing.
Also fix a typo in "utils/grid.py".
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The "map_grid_to_healpix()" maps the generated coordinate grid to a
HEALPix map. Note that only effective HEALPix pixels are returned
instead of a full HEALPix map.
TODO: Try to avoid the explicit for loop to optimize the speed.
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* make_coordinate_grid(): Make a Cartesian coordinate grid according to
the specified center coordinate, size and grid resolution.
* make_grid_ellipse(): Also generate an (rotated) ellipse and place into
the coordinate grid.
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NOTE: very preliminary, and missing many necessary functions!
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NOTE: very preliminary and may change at any time!
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Change the "__init__()" method to load the user configurations (i.e., by
invoke the "read_userconfig()" method) instead of loading extra general
configurations.
Method "getn()": also check the validity for the parameter "sep".
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No functional changes.
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* Return None if specified config is None or not exist
* Raise ValueError if specified config is non-string
* Update comments
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These functions will be used to draw the image of a SNR or a radio halo.
These functions are copied from the `scikit-image` project.
Thanks!
scikit-image: http://scikit-image.org/docs/dev/api/skimage.draw.html
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After this switch to `pkg_resources`, this package can also be installed
as an EGG (a zip archive), which is more generic.
References:
* http://setuptools.readthedocs.io/en/latest/pkg_resources.html#basic-resource-access
* http://setuptools.readthedocs.io/en/latest/setuptools.html#including-data-files
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Thanks D. A. Green for the Galactic SNRs catalog (294 objects)!
http://www.mrao.cam.ac.uk/surveys/snrs/
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Since the logging is not avaiable at the moment, we can only use the
plain `print` for debugging, if the environment variable "DEBUG_FG21SIM"
is defined.
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* Mask the regions where the dust absorption is too high to well
determine the true Halpha absorption.
There are regions (e.g., Galactic plane) have too large dust
absorption which cause float overflow when applying absorption
correction to the Halpha map.
* Fix a bug on the wrong parameter passed to "_calc_ratio_a()" method
in "_simulate_frequency()"
* Move "_correct_dust_absorption()" invokation from "simulate()"
to "_simulate_frequency()"
Already tested and OK!
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* healpix2hpx(), hpx2healpix(): Remove the "header" parameter, thus the
"data" parameter can only be either the filename or a HDU;
* healpix2hpx(): Remove the check on "ORDERING", since
"read_fits_healpix()" always return the HEALPix data in RING ordering;
* Small updates to the log messages and comments.
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