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Diffstat (limited to 'post/src/ft2d.h')
-rw-r--r-- | post/src/ft2d.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/post/src/ft2d.h b/post/src/ft2d.h new file mode 100644 index 0000000..e665041 --- /dev/null +++ b/post/src/ft2d.h @@ -0,0 +1,63 @@ +/* + This file is part of LPIC++, a particle-in-cell code for + simulating the interaction of laser light with plasma. + + Copyright (C) 1994-1997 Roland Lichters + + LPIC++ 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. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#ifndef FT2_H +#define FT2_H + +#include <common.h> +#include <utilities.h> +#include <math.h> +#include <fstream> +#include <iomanip> +#include <string.h> + +class FFT2D { + public: + +// input + int periods_input_1, periods_input_2; + int steps_pp_input_1, steps_pp_input_2; + int screen_input_1, screen_input_2; + +// internal + int steps_1, steps_2, steps_half_1, steps_half_2, steps_input_1, steps_input_2; + float dt_1, dt_input_1, dt_2, dt_input_2; + float df_1, df_2; + float **local; + float *data; + float *frequency_1, *frequency_2; + float **si; + float **co; + float **power; + int *nn; + + char errname[filename_size]; + + FFT2D ( int Q_kw, int periods_1, int steps_pp_1, int screen_1, + int periods_2, int steps_pp_2, int screen_2 ); + int steps_ft ( int steps_input ); + float window ( float t, int screen_input, int periods_input ); + void fftn ( float* data, int *nn, int ndim, int isign ); + void RealFt ( float** input ); +}; + +#endif + |