Aquila-Consortium/libsharp2
0
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

initial import

Browse source
This commit is contained in:
Martin Reinecke 2012-06-27 16:44:31 +02:00
commit 2942428e92
53 changed files with 9133 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

68
libsharp/sharp_almhelpers.c Normal file
View file

@ -0,0 +1,68 @@
/*
* This file is part of libsharp.
*
* libsharp is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* libsharp is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with libsharp; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* libsharp is being developed at the Max-Planck-Institut fuer Astrophysik
* and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
* (DLR).
*/
/*! \file sharp_almhelpers.c
* Spherical transform library
*
* Copyright (C) 2008-2011 Max-Planck-Society
* \author Martin Reinecke
*/
#include "sharp_almhelpers.h"
#include "c_utils.h"
void sharp_make_triangular_alm_info (int lmax, int mmax, int stride,
sharp_alm_info **alm_info)
{
sharp_alm_info *info = RALLOC(sharp_alm_info,1);
info->lmax = lmax;
info->nm = mmax+1;
info->mval = RALLOC(int,mmax+1);
info->mvstart = RALLOC(ptrdiff_t,mmax+1);
info->stride = stride;
int tval = 2*lmax+1;
for (ptrdiff_t m=0; m<=mmax; ++m)
{
info->mval[m] = m;
info->mvstart[m] = stride*((m*(tval-m))>>1);
}
*alm_info = info;
}
void sharp_make_rectangular_alm_info (int lmax, int mmax, int stride,
sharp_alm_info **alm_info)
{
sharp_alm_info *info = RALLOC(sharp_alm_info,1);
info->lmax = lmax;
info->nm = mmax+1;
info->mval = RALLOC(int,mmax+1);
info->mvstart = RALLOC(ptrdiff_t,mmax+1);
info->stride = stride;
for (ptrdiff_t m=0; m<=mmax; ++m)
{
info->mval[m] = m;
info->mvstart[m] = stride*m*(lmax+1);
}
*alm_info = info;
}