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convert_ring2nest*
Routine to convert a HEALPix map from RING to NESTED scheme.
The routine is a
wrapper for 6 different routines and can threfore process
integer, single precision and double precision maps as well as mono or bi
dimensional arrays.
This routine is fast, and is parallelized for shared memory
architecture, but requires extra memory to store a temporary map in.
Location in HEALPix directory tree:
src/f90/mod/pix_tools.f90
FORMAT call convert_ring2nest*(
nside, map
)
ARGUMENTS
| name & dimensionality |
kind |
in/out |
description |
|---|
| |
|
|
|
|
nside |
I4B |
IN |
the Nside parameter of the map to be converted. |
| map(0:12*nside**2-1) |
I4B/ SP/ DP |
INOUT |
mono-dimensional full sky map to be converted to RING scheme. |
| map(0:12*nside**2-1,1:nd) |
I4B/ SP/ DP |
INOUT |
bi-dimensional full sky map to
be converted to RING scheme. The routine finds the second
dimension (nd) by itself. Processing a bidimensional map with nd>1 should be
faster than each of the nd 1D-maps consecutively. |
EXAMPLE:
call convert_ring2nest(256,map)
Converts an Nside=256 map given in array map from RING to NESTED scheme.
MODULES & ROUTINESThis section lists the modules and routines used by convert_ring2nest*.
-
ring2nest
- routine to convert a RING pixel index to NESTED pixel number.
RELATED ROUTINESThis section lists the routines related to convert_ring2nest*
-
convert_nest2ring
- convert between
NESTED and RING schemes.
-
convert_inplace
- convert between
RING and NESTED schemes inplace. This routine is slower than convert_ring2nest*, but doesn't require as much memory.
Eric Hivon
2010-06-18
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