Subsections
addition of ialteralm to modify Spherical
Harmonics coefficients (alm).
addition of planck_colors to modify
current color table to one used in Planck 2013 publications.
cartview, gnomview, mollview,
orthview:
addition of
BAD_COLOR,
BG_COLOR and
FG_COLOR keywords to change the color of the
missing pixels, background and foreground labels and lines.
support for
COLT='planck1' and
COLT='planck2' to use the Planck color tables
defined in planck_colors
Bugs correction in
bin_llcl,
query_disc.
update of the required
IDL-astron library
routines, and their supporting Coyote
routines (2014-11-10).
Latest edition (version 3.11)
ang2pix_ring and
pix2ang_nest routines
now accept scalar arguments
Previous edition (version 3.10)
bug corrections:
query_disc: correct handling of empty disc;
bin_llcl: correct handling of optional argument.
double precision of input now preserved in
gaussbeam and
euler_matrix_new.
fits2cl: addition of /PLANCK1 keyword
to read best fit C(l) model to Planck 2013 + external data.
it is now possible to read a specific FITS file extension identified by its
(0-based) number or its case-insensitive EXTNAME value with the Extension
keyword added to
fits2cl,
getsize_fits,
read_fits_map,
read_fits_s and
read_tqu.
update of the required
IDL-astron library
routines, and their supporting Coyote
routines (2013-02-08).
Previous edition (version 3.0)
New routines to go from circular beam profile to transfer function
(beam2bl),
and back (bl2beam);
to go from indexed list of alm to a(l,m) 2D table
(alm_i2t),
and back
(alm_t2i); and to compute the angular distance
between pairs of vectors (angulardistance).
addition of iprocess_mask
interface to F90 process_mask facility to compute the angular distance of valid
pixels to the closest invalid pixels for a input binary mask.
creation of hpx2dm routine to generate
DomeMaster images of HEALPix maps that can be projected on planetariums.
the pixel query routines
query_triangle,
query_polygon,
and in particular query_disc,
have been improved and will return fewer
false positive pixels in the inclusive mode
improved accuracy of the co-latitude calculation in the vicinity
of the poles for high resolution in nest2ring, ring2nest,
pix2ang_*, pix2vec_*,
cartview, gnomview, mollview,
orthview:
the length and spacing of the headless vectors used to represent
polarization is now user-controlled via POLARIZATION keyword. The COLT keyword now
allows the use of an interactively modified color table.
orthview now accepts
STAGGER keyword to overplot staggered
spheres (with a twist) in order to detect periodic boundary conditions on the
sky
fits2cl: addition of WMAP7 keyword
to read best fit C(l) model to WMAP 7yr data.
read_fits_map can now read
=8192 HEALPix maps and is generally faster than previously for smaller
maps
update of astron library routines (01-Feb-2012).
Recent edition (versions 2.20 and 2.20a)
fits2cl: addition of WMAP1 and
WMAP5 keywords to read
best fit C(l) model to WMAP 1st and 5yr data respectively,
cartview, gnomview, mollview, orthview:
the OUTLINE option now accept
symbols with PSYM > 8, using
symcat
symbols definition.
Recent editions (versions 2.15 and 2.15a)
cartview, gnomview, mollview, orthview:
export of projected map into a FITS file (FITS keyword), or an
IDL array (MAP_OUT option) now available with all viewing routines,
added CHARTHICK
support;
accept array of OUTLINE structures (if they have the same fields), and still support structure
of structures,
correction of a bug (in loaddata_healpix) that was
affecting the behavior of these viewing routines after consecutive calls with
very partial cut-sky and then full-sky data sets [2.15a];
remove_dipole now outputs the monopole and dipole
covariance matrix;
write_fits_map,
write_tqu,
write_fits_sb: BAD_DATA keyword added to FITS header;
update of astron library routines (24-May-2010) for improved WCS support.
Previous edition (version 2.14a)
cartview, gnomview, mollview, orthview:
OUTLINE=, GRATICULE=, IGRATICULE= work
again with virtual windows (WINDOW<0)
YPOS= and RETAIN= keywords active again
PS= keyword fixed
orthview:
fixed problems with /SHADE keyword, which now
outputs 8-byte (instead of 16-byte) PNG files
ianafast,
ismoothing:
fixed problem with processing of
polarized maps stored in memory.
ud_grade:
improved handling of flagged pixels on Double
Precision input maps
remove_dipole:
COORD_IN= and COORD_OUT= now
accept lower case values; /SILENT keyword added.
Old edition (version 2.13)
new healpix_doc routine to
browse HTML and PDF documentations
cartview, gnomview, mollview, orthview:
introduction of the TRUECOLORS= keyword to generate
color image from 3 channel map
extended capability of the TRANSPARENT= keyword
addition of MAP_OUT= to gnomview
improved compatibility with
GDL
(free IDL clone). See ``HEALPix Installation Document''
for current GDL limitations.
update of the IDL-astron library routines, which now require IDL 6.1 or more
fits2alm: new LMAX= and LMIN= keywords
fits2cl: new LLFACTOR= keyword
init_healpix defines
substructure with complete path to HEALPix subdirectories (test, data, bin)
slightly faster write_fits_cut4
and write_fits_sb routines.
ianafast,
ismoothing: solved problem with W8DIR= keyword.
Older editions (versions 2.11 and 2.12a)
ianafast,
ismoothing,
isynfast: the TMPDIR keyword now works properly, and $IDL_TMPDIR is used as the
default temporary directory ; more stable behaviour of these routines
ud_grade:
correctly flags bad output pixels with bad_data
value when upgrading maps
cut sky map: improved, faster routine, now works for Nside >
8192
cartview, gnomview, mollview, orthview:
using a virtual window (ie, setting WINDOW to a
negative value) now allows faster generation of GIF and PNG files (especially useful over remote connections);
addition of RETAIN= keyword;
deals correctly with user provided MIN and MAX in
LOG and ASINH modes
polarization norm map can be offset (POLARIZATION=1 mode)
original color table and plot settings are restored when
leaving these routines
orthview: addition of
/SHADED
keyword for 3D rendering
issues warning when non-integer pixel indexes are fed to nest2ring, ring2nest, pix2ang_*, pix2vec_*, ...
ximview:
fixed problem with cut-sky FITS files
color scale bar added to PNG output
version 0.6.2, fixed bug in pixel coordinates
cosmetic editions to remove_dipole
New routines in version 2.10 include
ximview: visualisation routine developed by J. P. Leahy intended for quick-look inspection of HEALPix images
(as well as ordinary 2-D images) at the level of individual pixels. Features
include panning, zooming, blinking, image statistics and peak finding.
hpx2gs: turns a healpix data set into a
Google Earth/Google Sky-compatible image
ianafast: interface to (F90) anafast
and (C++) anafast_cxx facilities
isynfast: interface to F90 synfast facility
ismoothing: interface to F90 smoothing facility
bin_llcl: C(l) binning
bl2fits: writes B(l) or W(l) window into
FITS file
neighbours_nest, neighbours_ring: find immediate neighbours of a given pixel
query_strip: find pixels lying within a colatitude strip
Routines with extended/improved user interface or new functionalities include
mollview, gnomview, cartview, orthview:
ONLINE keyword is now redundant,
introduction of GLSIZE and IGLSIZE to
control automatic labeling of graticules,
see Fig. 2 on page
addition of SILENT and EXECUTE keywords,
see Fig. 2 on
page
addition of ASINH keyword to allow better visualisation of highly
contrasted maps; see Figure 3 on page
,
under certain circumstances, can process high resolution cut sky data sets
without creating full sky dummy maps,
accept gzip compressed FITS files,
accept polarized cut sky maps,
accept multi-dimensional online arrays,
more robust OUTLINE option.
median_filter: bugs correction
ud_grade: more robust user interface
change_polcconv: new /FORCE keyword
remove_dipole: more accurate
query_disc: when the disc center is
located at one of
the poles, only the pixels overlapping with the disc are now returned.
Miscellaneous
mollcursor, gnomcursor...: an X11 patch is
given so that these routines work under Mac OS X 10.4 and 10.5.
Version 3.30, 2015-10-08