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Changes between release 2.0 and 2.15a

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),

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.

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