/usr/include/graphene-1.0/graphene-ray.h is in libgraphene-1.0-dev 1.8.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | /* graphene-ray.h: A ray emitted from an origin in a given direction
*
* Copyright 2015 Emmanuele Bassi
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef __GRAPHENE_RAY_H__
#define __GRAPHENE_RAY_H__
#if !defined(GRAPHENE_H_INSIDE) && !defined(GRAPHENE_COMPILATION)
#error "Only graphene.h can be included directly."
#endif
#include "graphene-types.h"
#include "graphene-vec3.h"
GRAPHENE_BEGIN_DECLS
/**
* graphene_ray_t:
*
* A ray emitted from an origin in a given direction.
*
* The contents of the `graphene_ray_t` structure are private, and should not
* be modified directly.
*
* Since: 1.4
*/
struct _graphene_ray_t
{
/*< private >*/
GRAPHENE_PRIVATE_FIELD (graphene_vec3_t, origin);
GRAPHENE_PRIVATE_FIELD (graphene_vec3_t, direction);
};
GRAPHENE_AVAILABLE_IN_1_4
graphene_ray_t * graphene_ray_alloc (void);
GRAPHENE_AVAILABLE_IN_1_4
void graphene_ray_free (graphene_ray_t *r);
GRAPHENE_AVAILABLE_IN_1_4
graphene_ray_t * graphene_ray_init (graphene_ray_t *r,
const graphene_point3d_t *origin,
const graphene_vec3_t *direction);
GRAPHENE_AVAILABLE_IN_1_4
graphene_ray_t * graphene_ray_init_from_ray (graphene_ray_t *r,
const graphene_ray_t *src);
GRAPHENE_AVAILABLE_IN_1_4
graphene_ray_t * graphene_ray_init_from_vec3 (graphene_ray_t *r,
const graphene_vec3_t *origin,
const graphene_vec3_t *direction);
GRAPHENE_AVAILABLE_IN_1_4
void graphene_ray_get_origin (const graphene_ray_t *r,
graphene_point3d_t *origin);
GRAPHENE_AVAILABLE_IN_1_4
void graphene_ray_get_direction (const graphene_ray_t *r,
graphene_vec3_t *direction);
GRAPHENE_AVAILABLE_IN_1_4
void graphene_ray_get_position_at (const graphene_ray_t *r,
float t,
graphene_point3d_t *position);
GRAPHENE_AVAILABLE_IN_1_4
float graphene_ray_get_distance_to_point (const graphene_ray_t *r,
const graphene_point3d_t *p);
GRAPHENE_AVAILABLE_IN_1_4
float graphene_ray_get_distance_to_plane (const graphene_ray_t *r,
const graphene_plane_t *p);
GRAPHENE_AVAILABLE_IN_1_4
bool graphene_ray_equal (const graphene_ray_t *a,
const graphene_ray_t *b);
GRAPHENE_AVAILABLE_IN_1_4
void graphene_ray_get_closest_point_to_point (const graphene_ray_t *r,
const graphene_point3d_t *p,
graphene_point3d_t *res);
GRAPHENE_END_DECLS
#endif /* __GRAPHENE_RAY_H__ */
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