/usr/include/oce/OpenGl_tgl_funcs.hxx is in liboce-visualization-dev 0.15-5.
This file is owned by root:root, with mode 0o644.
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// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and / or modify it
// under the terms of the GNU Lesser General Public version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef OPENGL_TGL_FUNCS_H
#define OPENGL_TGL_FUNCS_H
typedef float matrix3[4][4];
typedef enum {
TYPE_PARAL,
TYPE_PERSPECT
} projtype;
typedef enum {
IND_NO_CLIP,
IND_CLIP
} clip_ind;
typedef struct {
float x; /* x coordinate */
float y; /* y coordinate */
float z; /* z coordinate */
} point3;
typedef struct {
float delta_x; /* x magnitude */
float delta_y; /* y magnitude */
float delta_z; /* z magnitude */
} vec3;
typedef struct {
float x_min; /* x min */
float x_max; /* x max */
float y_min; /* y min */
float y_max; /* y max */
float z_min; /* z min */
float z_max; /* z max */
} limit3;
typedef struct {
float x_min; /* x min */
float x_max; /* x max */
float y_min; /* y min */
float y_max; /* y max */
} limit;
typedef struct {
limit win; /* window limits */
limit3 proj_vp; /* viewport limits */
projtype proj_type; /* projection type */
point3 proj_ref_point; /* projection reference point */
float view_plane; /* view plane distance */
float back_plane; /* back plane distance */
float front_plane; /* front plane distance */
} view_map3;
extern void call_func_eval_ori_matrix3 (const point3* vrp,
const vec3* vpn,
const vec3* vup,
int* err_ind,
float mout[4][4]);
extern void call_func_eval_map_matrix3(view_map3 *Map, int *err_ind, matrix3 mat);
#endif // OPENGL_TGL_FUNCS_H
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