/usr/include/gwyddion/libprocess/fractals.h is in libgwyddion20-dev 2.47-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* @(#) $Id: fractals.h 15598 2013-11-11 12:33:32Z yeti-dn $
* Copyright (C) 2003 David Necas (Yeti), Petr Klapetek.
* E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
*
* This program 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GWY_PROCESS_FRACTALS_H__
#define __GWY_PROCESS_FRACTALS_H__
#include <libprocess/datafield.h>
G_BEGIN_DECLS
void gwy_data_field_fractal_partitioning(GwyDataField *data_field,
GwyDataLine *xresult,
GwyDataLine *yresult,
GwyInterpolationType interpolation);
void gwy_data_field_fractal_cubecounting(GwyDataField *data_field,
GwyDataLine *xresult,
GwyDataLine *yresult,
GwyInterpolationType interpolation);
void gwy_data_field_fractal_triangulation(GwyDataField *data_field,
GwyDataLine *xresult,
GwyDataLine *yresult,
GwyInterpolationType interpolation);
void gwy_data_field_fractal_psdf(GwyDataField *data_field,
GwyDataLine *xresult,
GwyDataLine *yresult,
GwyInterpolationType interpolation);
gdouble gwy_data_field_fractal_cubecounting_dim(GwyDataLine *xresult,
GwyDataLine *yresult,
gdouble *a,
gdouble *b);
gdouble gwy_data_field_fractal_triangulation_dim(GwyDataLine *xresult,
GwyDataLine *yresult,
gdouble *a,
gdouble *b);
gdouble gwy_data_field_fractal_partitioning_dim(GwyDataLine *xresult,
GwyDataLine *yresult,
gdouble *a,
gdouble *b);
gdouble gwy_data_field_fractal_psdf_dim(GwyDataLine *xresult,
GwyDataLine *yresult,
gdouble *a,
gdouble *b);
void gwy_data_field_fractal_correction(GwyDataField *data_field,
GwyDataField *mask_field,
GwyInterpolationType interpolation);
G_END_DECLS
#endif /* __GWY_PROCESS_FRACTALS__ */
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