/usr/include/geomview/camera.h is in libgeomview-dev 1.9.4-3.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | /* Copyright (C) 1992-1998 The Geometry Center
* Copyright (C) 1998-2000 Stuart Levy, Tamara Munzner, Mark Phillips
*
* This file is part of Geomview.
*
* Geomview 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 2, or (at your option)
* any later version.
*
* Geomview 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 Geomview; see the file COPYING. If not, write
* to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
* USA, or visit http://www.gnu.org.
*/
/* Authors: Charlie Gunn, Stuart Levy, Tamara Munzner, Mark Phillips */
#ifndef CAMERA_H
#define CAMERA_H
#include "3d.h"
#include "handle.h"
#include "color.h"
#include <stdarg.h>
typedef struct Camera Camera;
/* Public Camera methods (more below): */
Camera *CamCreate( int attr1, ... );
Camera *CamSet( Camera *, int attr1, ... );
Camera * _CamSet(Camera *cam, int attr, va_list *a_list);
int CamGet( Camera *, int attr, void *value);
void CamDelete( Camera * );
Camera *CamCopy( Camera *src, Camera *dst );
Camera *CamMerge( Camera *src, Camera *dst );
/* Camera attributes: */
/* Set/Create type Get type */
#define CAM_END 800 /* --------------- -------- */
#define CAM_PERSPECTIVE 801 /* int int * */
#define CAM_C2W 802 /* Transform Transform */
#define CAM_W2C 803 /* Transform Transform */
#define CAM_FOV 804 /* float float * */
#define CAM_HALFYFIELD 805 /* float float * */
#define CAM_HALFFIELD 806 /* float float * */
#define CAM_ASPECT 807 /* float float * */
#define CAM_FOCUS 808 /* float float * */
#define CAM_NEAR 809 /* float float * */
#define CAM_FAR 810 /* float float * */
#define CAM_STEREO 811 /* int int * */
#define CAM_STEREOSEP 812 /* float float * */
#define CAM_STEREOANGLE 813 /* float float * */
#define CAM_STEREOEYE 814 /* int int * */
#define CAM_C2WHANDLE 815 /* Handle * Handle ** */
#define CAM_W2CHANDLE 816 /* Handle * Handle ** */
#define CAM_STEREYES 817 /* Transform [2] Transform [2] */
#define CAM_STERHANDLES 818 /* Handle *[2] Handle *[2] */
#define CAM_SPACE 819 /* int int * */
#define CAM_BGCOLOR 820 /* ColorA * ColorA * */
#define CAM_BGIMAGE 821 /* Image * Image ** */
#define CAM_BGIMGHANDLE 822 /* Handle * Handle ** */
#define CAM_ABLOCK 899 /* void **ablock */
/*
CAM_END: end of attribute list
CAM_PERSPECTIVE: perspective (1) or ortho (0) projection (default:1)
CAM_C2W: camera-to-world transform: <world> * C2W = <cam>
CAM_W2C: world-to-camera transform (inverse of CAM_C2W)
CAM_C2WHANDLE: Handle onto CAM_C2W
CAM_W2CHANDLE: Handle onto CAM_W2C
CAM_FOV: field of view (in degrees)
CAM_HALFYFIELD: FOV half-width at z=1 (Y direction)
CAM_HALFFIELD: min FOV half-width
CAM_ASPECT: aspect ratio, X/Y
CAM_FOCUS: nominal focal distance for perspec<->ortho
CAM_NEAR: near clipping plane
CAM_FAR: far clipping plane
CAM_STEREO: stereo (1) or mono (0) (default:0)
CAM_STEREOSEP: separation distance between stereo eyes
CAM_STEREOANGLE: angle between stereo eyes (degrees)
CAM_STEREYES: array of two transforms resp. for left & right eye,
applied as <world> * C2W * STEREYE * projection
CAM_STERHANDLES: Handles for left and right eye transforms
CAM_STEREOEYE: Which stereo eye selected: CAM_LEFT or CAM_RIGHT
CAM_SPACE: TM_EUCLIDEAN, TM_HYPERBOLIC, or TM_SPHERICAL
*/
#define CAM_LEFT 0
#define CAM_RIGHT 1
/*
* Additional public Camera methods:
*/
/* Reset to defaults */
void CamReset( Camera * );
/* return Camera's projection xform; doesn't change camera at all */
void CamViewProjection( Camera *, Transform );
/* Complete cam world->proj xform; doesn't change camera at all */
void CamView( Camera *, Transform );
/* Apply T to camtoworld xform */
void CamTransform( Camera *, Transform T );
/* Rotate camera about X */
void CamRotateX( Camera *, float angle );
/* Rotate about Y (radians) */
void CamRotateY( Camera *, float );
/* Rotate about Z */
void CamRotateZ( Camera *, float );
/* Translate X,Y,Z */
void CamTranslate( Camera *, float,float,float );
/* Hyperbolic xlate */
void CamHypTranslate( Camera *, float,float,float, float );
/* Zoom in X,Y,Z */
void CamScale( Camera *, float,float,float );
/* ??? */
void CamAlignZ( Camera *, float,float,float );
/* Save to file */
void CamSave(Camera *, char *);
void CamFSave(Camera *, FILE *, char *);
/* Load from file */
Camera *CamLoad(Camera *, char *);
Camera *CamFLoad(Camera *, IOBFILE *, char *);
/************************************************************************
* The following procedures are on death row; they will be taken out *
* soon because they have been superceded by CamGet and CamSet *
************************************************************************/
/* Get object xform */
void CamCurrentPosition( Camera *, Transform );
/* Camera's world->camera xform (inverse of CamCurrentPosition) */
void CamViewWorld( Camera *, Transform );
/* Set "focal" length */
void CamFocus( Camera *, float focus );
/* Get focal length */
float CamCurrentFocus( Camera * );
/* Set X/Y aspect */
void CamFrameAspect( Camera *, float aspectratio );
/* Get X/Y aspect */
float CamCurrentAspect( Camera * );
/* camtoworld xform = T */
void CamTransformTo( Camera *, Transform T );
/* Left/Right/Mono */
void CamStereoEye( Camera *cam, int whicheye );
/* Set clip planes */
void CamClipping( Camera *, float near, float far );
/* Get clipping */
void CamCurrentClipping( Camera *, float *near, float *far );
/* Set field: minfov/2 */
void CamHalfField( Camera *, float halffield );
/* Set field: Yfov/2 */
void CamHalfYField( Camera *, float halfyfield );
/* perspective/ortho */
void CamPerspective( Camera *, int perspective );
/* or orthographic */
int CamIsPerspective( Camera * );
/* Get fov/2 (max way) */
float CamCurrentHalfField( Camera * );
/* Get fov/2 (Y dir) */
float CamCurrentHalfYField( Camera * );
/* Get xfms, cur eye */
int CamCurrentStereo( Camera *, Transform leye, Transform reye );
void CamDefault(Camera *cam);
int CamStreamIn(Pool *p, Handle **hp, Camera **camp);
int CamStreamOut(Pool *p, Handle *hp, Camera *cam);
void CamHandleScan( Camera *cam, int (*func)(), void *arg );
#endif /* !CAMERA_H */
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