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* Add utils/draw.py: draw circles and ellipsesAaron LI2016-10-151-0/+128
| | | | | | | | | 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
* utils: healpix2hpx & hpx2healpix: Remove "header" parameterAaron LI2016-10-111-35/+20
| | | | | | | | * 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.
* utils: Update documentations, also fix stylesAaron LI2016-10-112-35/+53
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* utils/healpix.py: log that HPX indices calculation may take a while.Aaron LI2016-10-101-0/+1
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* utils: zea2heapix(): Set value NaN for missing pixelsAaron LI2016-10-101-5/+9
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* utils: zea2healpix(): Implement inpainting missing pixelsAaron LI2016-10-101-3/+51
| | | | | | | The missing pixels in the reprojected HEALPix map are filled with the averages of their 8 neighboring pixels (excluding the NaN's if any). Also add the "--inpaint" argument to the executable script.
* utils: zea2healpix(): Average the duplicate pixelsAaron LI2016-10-101-2/+4
| | | | Also fix typos
* utils: zea2healpix() also return the mask arrayAaron LI2016-10-101-5/+13
| | | | | | | The mask array has values 0, 1, and 2, which indicate the different statuses of the reprojected HEALPix pixels. Also update the executable script to use the new return results.
* utils/reproject.py: Add more logging and some minor changesAaron LI2016-10-101-1/+22
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* utils/reproject.py: Implement zea2healpix()Aaron LI2016-10-102-0/+241
| | | | | | | | | | | | | | | | The "zea2healpix()" function reprojects the maps in ZEA (zenithal/azithumal equal area) projection to HEALPix data in Galactic frame with RING ordering. The other two helper functions "_image_to_healpix()" and "_convert_wcs()" are almost copied from the "reproject" project [1]. Thanks! TODO: * Add some more logging * Implement the "inpaint" argument to inpaint the HEALPix map if exists missing pixels [1] reproject: https://github.com/astrofrog/reproject
* utils: Preseve the dtype when read/write FITS filesAaron LI2016-10-102-11/+17
| | | | | | | | * utils/fits.py: hack the dtype to ignore the byteorder (FITS data use big endianness, e.g., dtype(">f4")) * utils/healpix.py: explicit convert the dtype and log the dtype * bin/healpix2hpx, bin/hpx2healpix: remove the --float argument * other minor fixes/updates
* Use newly added "read_fits_healpix()"Aaron LI2016-10-091-3/+3
| | | | Also remove a unused variable in "galactic/synchrotron.py"
* utils/fits.py: read_fits_healpix() also accept HDUAaron LI2016-10-091-4/+9
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* utils: Add function "read_fits_healpix()"Aaron LI2016-10-092-1/+30
| | | | | | This function wraps on the `healpy.read_map()`, but reset the data array to its original dtype in FITS file, as well as return the FITS header in `astropy.io.fits.Header` object.
* utils/healpix.py: fix logging import; minor style fixesAaron LI2016-10-091-10/+5
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* utils: Add "write_fits_healpix()" to replace "healpy.write_map()"Aaron LI2016-10-052-0/+101
| | | | | | NOTE: This "write_fits_healpix()" function only implements the most common case of the HEALPix FITS style.
* utils/logging.py: Close handler before removingAaron LI2016-10-021-0/+3
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* utils/logging.py: Save existing formatter for new handlersAaron LI2016-09-291-0/+5
| | | | | | | By saving the existing formatter and setting for the new handlers, the configured format styles are kept. Otherwise, the newly created handlers does not have a formatter, thus the default format style gets used.
* utils/logging: reset handlers before initialization/reconfigurationAaron LI2016-09-291-2/+9
| | | | Also improve the comments.
* utils/logging.py: Hack the "filemode" arg of "basicConfig()"Aaron LI2016-09-291-1/+4
| | | | | "logging.basicConfig()" does NOT accept parameter "filemode" if the corresponding paramter "filename" NOT specified.
* utils/healpix.py: Fix logger nameAaron LI2016-09-291-1/+1
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* setup_logging(): Add parameter "level"Aaron LI2016-09-291-2/+14
| | | | Also fix a bug about parameter "stream".
* utils/healpix.py: Add various log INFO messagesAaron LI2016-09-291-6/+22
| | | | Also fix a bug about "append_comment".
* Add utility "setup_logging()" to setup/update loggingAaron LI2016-09-292-0/+71
| | | | | | This "setup_logging()" utility can setup the logging module with the given configuration dict, and can also update the logging configs by specify the additional parameters.
* utils/healpix.py: remove duplicated headerAaron LI2016-09-271-2/+0
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* utils/healpix.py: HEALPix data and HPX projection conversionsAaron LI2016-09-272-0/+344
* healpix2hpx: reorganize HEALPix data in HPX projection * hpx2healpix: recover the HEALPix data from HPX projection Thanks: M. Calabretta: WCSLIB: HPXcvt TODO: Add test codes
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