/usr/include/gromacs/3dview.h is in gromacs-dev 4.6.5-1build1.
This file is owned by root:root, with mode 0o644.
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#ifndef _3dview_h
#define _3dview_h
#include "visibility.h"
#include "typedefs.h"
#ifdef __cplusplus
extern "C" {
#endif
#define WW 3
typedef real vec4[4];
typedef real mat4[4][4];
typedef int iv2[2];
typedef struct {
matrix box;
int ecenter; /* enum for centering, see pbc.h */
vec4 eye, origin; /* The eye and origin position */
mat4 proj; /* Projection matrix */
mat4 Rot; /* Total rotation matrix */
real sc_x, sc_y; /* Scaling for aspect ratio */
mat4 RotP[DIM]; /* state for 3d rotations */
mat4 RotM[DIM];
} t_3dview;
GMX_LIBGMX_EXPORT
extern void print_m4(FILE *fp, const char *s, mat4 A);
extern void print_v4(FILE *fp, char *s, int dim, real *a);
GMX_LIBGMX_EXPORT
extern void m4_op(mat4 m, rvec x, vec4 v);
extern void unity_m4(mat4 m);
GMX_LIBGMX_EXPORT
extern void mult_matrix(mat4 A, mat4 B, mat4 C);
GMX_LIBGMX_EXPORT
extern void rotate(int axis, real angle, mat4 A);
GMX_LIBGMX_EXPORT
extern void translate(real tx, real ty, real tz, mat4 A);
GMX_LIBGMX_EXPORT
extern void m4_op(mat4 m, rvec x, vec4 v);
extern void calculate_view(t_3dview *view);
extern t_3dview *init_view(matrix box);
/* Generate the view matrix from the eye pos and the origin,
* applying also the scaling for the aspect ration.
* There is no accompanying done_view routine: the struct can simply
* be sfree'd.
*/
/* The following options are present on the 3d struct:
* zoom (scaling)
* rotate around the center of the box
* reset the view
*/
extern gmx_bool zoom_3d(t_3dview *view, real fac);
/* Zoom in or out with factor fac, returns TRUE when zoom successful,
* FALSE otherwise.
*/
extern void init_rotate_3d(t_3dview *view);
/* Initiates the state of 3d rotation matrices in the structure */
extern void rotate_3d(t_3dview *view, int axis, gmx_bool bPositive);
/* Rotate the eye around the center of the box, around axis */
extern void translate_view(t_3dview *view, int axis, gmx_bool bPositive);
/* Translate the origin at which one is looking */
extern void reset_view(t_3dview *view);
/* Reset the viewing to the initial view */
#ifdef __cplusplus
}
#endif
#endif
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