/usr/include/gwyddion/libprocess/spline.h is in libgwyddion20-dev 2.47-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60  | /*
 *  @(#) $Id: spline.h 18313 2016-02-22 08:34:52Z yeti-dn $
 *  Copyright (C) 2016 David Necas (Yeti).
 *  E-mail: yeti@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_SPLINE_H__
#define __GWY_SPLINE_H__
#include <glib.h>
#include <libprocess/triangulation.h>
G_BEGIN_DECLS
typedef struct _GwySpline GwySpline;
GwySpline*   gwy_spline_new             (void);
void         gwy_spline_free            (GwySpline *spline);
GwySpline*   gwy_spline_new_from_points (const GwyXY *xy,
                                         guint n);
guint        gwy_spline_get_npoints     (GwySpline *spline);
const GwyXY* gwy_spline_get_points      (GwySpline *spline);
const GwyXY* gwy_spline_get_tangents    (GwySpline *spline);
gdouble      gwy_spline_get_slackness   (GwySpline *spline);
gboolean     gwy_spline_get_closed      (GwySpline *spline);
void         gwy_spline_set_points      (GwySpline *spline,
                                         const GwyXY *xy,
                                         guint n);
void         gwy_spline_set_slackness   (GwySpline *spline,
                                         gdouble slackness);
void         gwy_spline_set_closed      (GwySpline *spline,
                                         gboolean closed);
gdouble      gwy_spline_length          (GwySpline *spline);
const GwyXY* gwy_spline_sample_naturally(GwySpline *spline,
                                         guint *n);
gdouble      gwy_spline_sample_uniformly(GwySpline *spline,
                                         GwyXY *xy,
                                         GwyXY *t,
                                         guint n);
G_END_DECLS
#endif /* __GWY_SPLINE_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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