mirror of https://github.com/GNOME/gimp.git
161 lines
8.7 KiB
C
161 lines
8.7 KiB
C
/* LIBGIMP - The GIMP Library
|
|
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
|
|
*
|
|
* gimpvector.h
|
|
*
|
|
* The gimp_vector* functions were taken from:
|
|
* GCK - The General Convenience Kit
|
|
* Copyright (C) 1996 Tom Bech
|
|
*
|
|
* This library is free software: you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#if !defined (__GIMP_MATH_H_INSIDE__) && !defined (GIMP_MATH_COMPILATION)
|
|
#error "Only <libgimpmath/gimpmath.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __GIMP_VECTOR_H__
|
|
#define __GIMP_VECTOR_H__
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* For information look into the C source or the html documentation */
|
|
|
|
|
|
/* Two dimensional vector functions */
|
|
/* ================================ */
|
|
|
|
GimpVector2 gimp_vector2_new (gdouble x,
|
|
gdouble y);
|
|
void gimp_vector2_set (GimpVector2 *vector,
|
|
gdouble x,
|
|
gdouble y);
|
|
gdouble gimp_vector2_length (const GimpVector2 *vector);
|
|
gdouble gimp_vector2_length_val (GimpVector2 vector);
|
|
void gimp_vector2_mul (GimpVector2 *vector,
|
|
gdouble factor);
|
|
GimpVector2 gimp_vector2_mul_val (GimpVector2 vector,
|
|
gdouble factor);
|
|
void gimp_vector2_normalize (GimpVector2 *vector);
|
|
GimpVector2 gimp_vector2_normalize_val (GimpVector2 vector);
|
|
void gimp_vector2_neg (GimpVector2 *vector);
|
|
GimpVector2 gimp_vector2_neg_val (GimpVector2 vector);
|
|
void gimp_vector2_add (GimpVector2 *result,
|
|
const GimpVector2 *vector1,
|
|
const GimpVector2 *vector2);
|
|
GimpVector2 gimp_vector2_add_val (GimpVector2 vector1,
|
|
GimpVector2 vector2);
|
|
void gimp_vector2_sub (GimpVector2 *result,
|
|
const GimpVector2 *vector1,
|
|
const GimpVector2 *vector2);
|
|
GimpVector2 gimp_vector2_sub_val (GimpVector2 vector1,
|
|
GimpVector2 vector2);
|
|
gdouble gimp_vector2_inner_product (const GimpVector2 *vector1,
|
|
const GimpVector2 *vector2);
|
|
gdouble gimp_vector2_inner_product_val (GimpVector2 vector1,
|
|
GimpVector2 vector2);
|
|
GimpVector2 gimp_vector2_cross_product (const GimpVector2 *vector1,
|
|
const GimpVector2 *vector2);
|
|
GimpVector2 gimp_vector2_cross_product_val (GimpVector2 vector1,
|
|
GimpVector2 vector2);
|
|
void gimp_vector2_rotate (GimpVector2 *vector,
|
|
gdouble alpha);
|
|
GimpVector2 gimp_vector2_rotate_val (GimpVector2 vector,
|
|
gdouble alpha);
|
|
GimpVector2 gimp_vector2_normal (GimpVector2 *vector);
|
|
GimpVector2 gimp_vector2_normal_val (GimpVector2 vector);
|
|
|
|
/* Three dimensional vector functions */
|
|
/* ================================== */
|
|
|
|
GimpVector3 gimp_vector3_new (gdouble x,
|
|
gdouble y,
|
|
gdouble z);
|
|
void gimp_vector3_set (GimpVector3 *vector,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble z);
|
|
gdouble gimp_vector3_length (const GimpVector3 *vector);
|
|
gdouble gimp_vector3_length_val (GimpVector3 vector);
|
|
void gimp_vector3_mul (GimpVector3 *vector,
|
|
gdouble factor);
|
|
GimpVector3 gimp_vector3_mul_val (GimpVector3 vector,
|
|
gdouble factor);
|
|
void gimp_vector3_normalize (GimpVector3 *vector);
|
|
GimpVector3 gimp_vector3_normalize_val (GimpVector3 vector);
|
|
void gimp_vector3_neg (GimpVector3 *vector);
|
|
GimpVector3 gimp_vector3_neg_val (GimpVector3 vector);
|
|
void gimp_vector3_add (GimpVector3 *result,
|
|
const GimpVector3 *vector1,
|
|
const GimpVector3 *vector2);
|
|
GimpVector3 gimp_vector3_add_val (GimpVector3 vector1,
|
|
GimpVector3 vector2);
|
|
void gimp_vector3_sub (GimpVector3 *result,
|
|
const GimpVector3 *vector1,
|
|
const GimpVector3 *vector2);
|
|
GimpVector3 gimp_vector3_sub_val (GimpVector3 vector1,
|
|
GimpVector3 vector2);
|
|
gdouble gimp_vector3_inner_product (const GimpVector3 *vector1,
|
|
const GimpVector3 *vector2);
|
|
gdouble gimp_vector3_inner_product_val (GimpVector3 vector1,
|
|
GimpVector3 vector2);
|
|
GimpVector3 gimp_vector3_cross_product (const GimpVector3 *vector1,
|
|
const GimpVector3 *vector2);
|
|
GimpVector3 gimp_vector3_cross_product_val (GimpVector3 vector1,
|
|
GimpVector3 vector2);
|
|
void gimp_vector3_rotate (GimpVector3 *vector,
|
|
gdouble alpha,
|
|
gdouble beta,
|
|
gdouble gamma);
|
|
GimpVector3 gimp_vector3_rotate_val (GimpVector3 vector,
|
|
gdouble alpha,
|
|
gdouble beta,
|
|
gdouble gamma);
|
|
|
|
/* 2d <-> 3d Vector projection functions */
|
|
/* ===================================== */
|
|
|
|
void gimp_vector_2d_to_3d (gint sx,
|
|
gint sy,
|
|
gint w,
|
|
gint h,
|
|
gint x,
|
|
gint y,
|
|
const GimpVector3 *vp,
|
|
GimpVector3 *p);
|
|
|
|
GimpVector3 gimp_vector_2d_to_3d_val (gint sx,
|
|
gint sy,
|
|
gint w,
|
|
gint h,
|
|
gint x,
|
|
gint y,
|
|
GimpVector3 vp,
|
|
GimpVector3 p);
|
|
|
|
void gimp_vector_3d_to_2d (gint sx,
|
|
gint sy,
|
|
gint w,
|
|
gint h,
|
|
gdouble *x,
|
|
gdouble *y,
|
|
const GimpVector3 *vp,
|
|
const GimpVector3 *p);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GIMP_VECTOR_H__ */
|