PIKApp/app/core/pikacoords-interpolate.h

46 lines
2.2 KiB
C

/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* pikacoords-interpolate.h
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#ifndef __PIKA_COORDS_INTERPOLATE_H__
#define __PIKA_COORDS_INTERPOLATE_H__
void pika_coords_interpolate_bezier (const PikaCoords bezier_pt[4],
gdouble precision,
GArray *ret_coords,
GArray *ret_params);
void pika_coords_interpolate_bezier_at (const PikaCoords bezier_pt[4],
gdouble t,
PikaCoords *position,
PikaCoords *velocity);
gboolean pika_coords_bezier_is_straight (const PikaCoords bezier_pt[4],
gdouble precision);
void pika_coords_interpolate_catmull (const PikaCoords catmull_pt[4],
gdouble precision,
GArray *ret_coords,
GArray *ret_params);
#endif /* __PIKA_COORDS_INTERPOLATE_H__ */