/usr/include/gwyddion/libprocess/elliptic.h is in libgwyddion20-dev 2.44-1.
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: elliptic.h 15598 2013-11-11 12:33:32Z yeti-dn $
* Copyright (C) 2005-2006 David Necas (Yeti), Petr Klapetek, Chris Anderson.
* E-mail: yeti@gwyddion.net, klapetek@gwyddion.net, sidewinder.asu@gmail.com.
*
* 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_ELLIPTIC_H__
#define __GWY_PROCESS_ELLIPTIC_H__
#include <libprocess/datafield.h>
G_BEGIN_DECLS
gint gwy_data_field_elliptic_area_fill (GwyDataField *data_field,
gint col,
gint row,
gint width,
gint height,
gdouble value);
gint gwy_data_field_elliptic_area_extract (GwyDataField *data_field,
gint col,
gint row,
gint width,
gint height,
gdouble *data);
void gwy_data_field_elliptic_area_unextract (GwyDataField *data_field,
gint col,
gint row,
gint width,
gint height,
const gdouble *data);
gint gwy_data_field_get_elliptic_area_size (gint width,
gint height);
gint gwy_data_field_circular_area_fill (GwyDataField *data_field,
gint col,
gint row,
gdouble radius,
gdouble value);
gint gwy_data_field_circular_area_extract (GwyDataField *data_field,
gint col,
gint row,
gdouble radius,
gdouble *data);
gint gwy_data_field_circular_area_extract_with_pos(GwyDataField *data_field,
gint col,
gint row,
gdouble radius,
gdouble *data,
gint *xpos,
gint *ypos);
void gwy_data_field_circular_area_unextract (GwyDataField *data_field,
gint col,
gint row,
gdouble radius,
const gdouble *data);
gint gwy_data_field_get_circular_area_size (gdouble radius);
G_END_DECLS
#endif /* __GWY_PROCESS_ELLIPTIC_H__ */
/* vim: set cin et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */
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