62 lines
2.7 KiB
C
62 lines
2.7 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikacoords.h
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* Copyright (C) 2002 Simon Budig <simon@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __PIKA_COORDS_H__
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#define __PIKA_COORDS_H__
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void pika_coords_mix (const gdouble amul,
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const PikaCoords *a,
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const gdouble bmul,
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const PikaCoords *b,
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PikaCoords *ret_val);
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void pika_coords_average (const PikaCoords *a,
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const PikaCoords *b,
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PikaCoords *ret_average);
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void pika_coords_add (const PikaCoords *a,
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const PikaCoords *b,
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PikaCoords *ret_add);
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void pika_coords_difference (const PikaCoords *a,
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const PikaCoords *b,
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PikaCoords *difference);
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void pika_coords_scale (const gdouble f,
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const PikaCoords *a,
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PikaCoords *ret_product);
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gdouble pika_coords_scalarprod (const PikaCoords *a,
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const PikaCoords *b);
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gdouble pika_coords_length (const PikaCoords *a);
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gdouble pika_coords_length_squared (const PikaCoords *a);
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gdouble pika_coords_manhattan_dist (const PikaCoords *a,
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const PikaCoords *b);
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gboolean pika_coords_equal (const PikaCoords *a,
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const PikaCoords *b);
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gdouble pika_coords_direction (const PikaCoords *a,
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const PikaCoords *b);
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#endif /* __PIKA_COORDS_H__ */
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