lm2index
This IDL routine provides a means to convert the degree and order
into the index
(in order to be fed to
alm2fits routine for instance)
Location in HEALPix directory tree: src/idl/misc/lm2index.pro
FORMAT
IDL>
LM2INDEX,
l,
m,
index
QUALIFIERS
-
l
- Long array containing on INPUT the order .
-
m
- Long array containing on INPUT the degree m.
-
index
- Long array containing on OUTPUT the index
.
DESCRIPTION
lm2index converts into
. Note that by
definition
(the routine does not check for this).
RELATED ROUTINES
This section lists the routines related to lm2index
-
idl
- version 6.4 or more is necessary to run lm2index.
-
fits2alm
- reads a FITS file containing
values.
-
alm2fits
- writes values into a FITS file.
-
index2lm
- routine complementary to lm2index:
converts
into .
EXAMPLE:
will return in index the value
Version 3.82, 2022-07-28