/usr/lib/grass74/include/grass/ogsf.h is in grass-dev 7.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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\file include/ogsf.h
\brief OGSF header file (structures)
This program is free software under the GNU General
Public License (>=v2). Read the file COPYING that
comes with GRASS for details.
\author Original author Bill Brown, USACERL (January 1993)
\author Thematic mapping enabled by Martin Landa <landa.martin gmail.com) (06/2011)
(C) 2011 by the GRASS Development Team
*/
#ifndef GRASS_OGSF_H
#define GRASS_OGSF_H
#include <grass/config.h>
#include <grass/bitmap.h>
#if defined(OPENGL_X11) || defined(OPENGL_WINDOWS)
#include <GL/gl.h>
#endif
#ifdef OPENGL_AQUA
#include <OpenGL/gl.h>
#endif
#include <grass/gis.h>
#define GS_UNIT_SIZE 1000.
#define BETWEEN(x, a, b) (((x) > (a) && (x) < (b)) || ((x) > (b) && (x) < (a)))
#define GS_NEAR_EQUAL(x, y, ratio) ((x) == (y) || ((x) == 0.0? \
GS_BETWEEN((x), (y)+(y)*(ratio), (y)-(y)*(ratio)):\
GS_BETWEEN((y), (x)+(x)*(ratio), (x)-(x)*(ratio))))
/* current maximums */
#define MAX_SURFS 12
#define MAX_VECTS 50
#define MAX_SITES 50
#define MAX_VOLS 12 /* should match MAX_VOL_FILES below ? */
#define MAX_DSP 12
#define MAX_ATTS 7
#define MAX_LIGHTS 3
#define MAX_CPLANES 6
#define MAX_ISOSURFS 12
#define MAX_SLICES 12
/* for gvl_file.c */
#define MAX_VOL_SLICES 4
#define MAX_VOL_FILES 100
/* surface display modes */
#define DM_GOURAUD 0x00000100
#define DM_FLAT 0x00000200 /* defined for symmetry */
#define DM_FRINGE 0x00000010
#define DM_WIRE 0x00000001
#define DM_COL_WIRE 0x00000002
#define DM_POLY 0x00000004
#define DM_WIRE_POLY 0x00000008
#define DM_GRID_WIRE 0x00000400
#define DM_GRID_SURF 0x00000800
#define WC_COLOR_ATT 0xFF000000
#define IFLAG unsigned int
/* surface attribute ***descriptors*** */
#define ATT_NORM 0 /* library use only */
#define ATT_TOPO 1
#define ATT_COLOR 2
#define ATT_MASK 3
#define ATT_TRANSP 4
#define ATT_SHINE 5
#define ATT_EMIT 6
#define LEGAL_ATT(a) (a >= 0 && a < MAX_ATTS)
/* surface attribute **sources** */
#define NOTSET_ATT 0
#define MAP_ATT 1
#define CONST_ATT 2
#define FUNC_ATT 3
#define LEGAL_SRC(s) (s==NOTSET_ATT||s==MAP_ATT||s==CONST_ATT||s==FUNC_ATT)
/* site markers */
#define ST_X 1
#define ST_BOX 2
#define ST_SPHERE 3
#define ST_CUBE 4
#define ST_DIAMOND 5
#define ST_DEC_TREE 6
#define ST_CON_TREE 7
#define ST_ASTER 8
#define ST_GYRO 9
#define ST_HISTOGRAM 10
/* Buffer modes */
#define GSD_FRONT 1
#define GSD_BACK 2
#define GSD_BOTH 3
/* fence colormodes */
#define FC_OFF 0
#define FC_ABOVE 1
#define FC_BELOW 2
#define FC_BLEND 3
#define FC_GREY 4
/* legend types */
#define LT_DISCRETE 0x00000100
#define LT_CONTINUOUS 0x00000200
#define LT_LIST 0x00000010
/* list automatically discrete */
#define LT_RANGE_LOWSET 0x00000001
#define LT_RANGE_HISET 0x00000002
#define LT_RANGE_LOW_HI 0x00000003
#define LT_INVERTED 0x00000008
#define LT_SHOW_VALS 0x00001000
#define LT_SHOW_LABELS 0x00002000
/* types of volume files */
#define VOL_FTYPE_RASTER3D 0
/* types of volume values */
#define VOL_DTYPE_FLOAT 0
#define VOL_DTYPE_DOUBLE 1
/*#define TRACE_FUNCS */
/*#define DEBUG */
#define X 0
#define Y 1
#define Z 2
#define W 3
#define FROM 0
#define TO 1
/* colormodes */
#define CM_COLOR 0
#define CM_EMISSION 1
#define CM_AMBIENT 2
#define CM_DIFFUSE 3
#define CM_SPECULAR 4
#define CM_AD 5
#define CM_NULL 6
#define CM_WIRE CM_COLOR
#define NULL_COLOR 0xFFFFFF
/* attribute sizes - NOT YET USED */
#define GS_CHAR8 char
#define GS_SHORT16 short
#define GS_INT32 int
/* attribute ***types*** */
#define ATTY_NULL 32 /* internal use only */
#define ATTY_MASK 16 /* can't use this one for numbytes */
#define ATTY_FLOAT 8 /* can't use this one for numbytes */
#define ATTY_INT 4
#define ATTY_SHORT 2
#define ATTY_CHAR 1
#define ATTY_ANY 63 /* internal use only */
#define LEGAL_TYPE(t) \
(t==ATTY_MASK || t==ATTY_FLOAT || t==ATTY_INT || t==ATTY_SHORT || t==ATTY_CHAR)
#define MAXDIMS 4
#define FUDGE(gs) ((gs->zmax_nz - gs->zmin_nz)/500.)
#define DOT3( a, b ) ( (a)[X]*(b)[X] + (a)[Y]*(b)[Y] + (a)[Z]*(b)[Z] )
/* changed flags for datasets */
#define CF_NOT_CHANGED 0x000000
#define CF_COLOR_PACKED 0x000001
#define CF_USR_CHANGED 0x000010
#define CF_CHARSCALED 0x000100
#define MAX_TF 6
#define MASK_TL 0x10000000
#define MASK_TR 0x01000000
#define MASK_BR 0x00100000
#define MASK_BL 0x00010000
#define MASK_NPTS 0x00000007
#define OGSF_POINT 1
#define OGSF_LINE 2
#define OGSF_POLYGON 3
#define RED_MASK 0x000000FF
#define GRN_MASK 0x0000FF00
#define BLU_MASK 0x00FF0000
typedef float Point4[4];
typedef float Point3[3];
typedef float Point2[2];
typedef struct
{
float *fb;
int *ib;
short *sb;
unsigned char *cb;
struct BM *bm;
struct BM *nm; /* null mask: set = null */
float (*tfunc) (float, int);
float k;
} typbuff;
typedef struct
{ /* use hash table? */
int n_elem; /* if n_elem == 256, index == NULL */
char *index;
int *value;
} table256;
typedef struct
{ /* applied thusly: offset, mult, if(use_lookup) lookup */
float offset;
float mult;
int use_lookup;
table256 lookup;
} transform;
/* move this to dataset file? */
typedef struct
{
int data_id;
int dims[MAXDIMS];
int ndims;
size_t numbytes;
char *unique_name;
typbuff databuff;
IFLAG changed;
int need_reload;
} dataset;
/* maybe add transformation matrix? */
typedef struct
{
IFLAG att_src; /* NOTSET_ATT, MAP_ATT, CONST_ATT, FUNC_ATT */
IFLAG att_type; /* ATTY_INT, ATTY_SHORT, ATTY_CHAR, or ATTY_FLOAT */
int hdata; /* handle to dataset */
int (*user_func) ();
float constant;
int *lookup; /* TODO: use transform instead */
float min_nz, max_nz, range_nz;
float default_null;
} gsurf_att;
typedef struct g_surf
{
int gsurf_id;
int cols, rows;
gsurf_att att[MAX_ATTS]; /* mask, topo, color, etc. */
IFLAG draw_mode; /*DM_GOURAUD | DM_FRINGE | DM_POLY, DM_WIRE, DM_WIRE_POLY */
long wire_color; /* 0xBBGGRR or WC_COLOR_ATT */
double ox, oy; /* real world origin (i.e., SW corner) */
double xres, yres;
float z_exag;
float x_trans, y_trans, z_trans;
float xmin, xmax, ymin, ymax, zmin, zmax, zminmasked;
float xrange, yrange, zrange;
float zmin_nz, zmax_nz, zrange_nz;
int x_mod, y_mod, x_modw, y_modw; /*cells per viewcell, per wire viewcell */
int nz_topo, nz_color; /* no zero flags */
int mask_needupdate, norm_needupdate;
unsigned long *norms;
struct BM *curmask;
struct g_surf *next;
void *clientdata;
} geosurf;
/* maybe put attribute info here instead of in geovect - allow a single
vector file to have multiple attributes ? Cached lines should
usually be stored as 2d, since they may be draped on multiple
surfaces & Z will vary depending upon surface. */
/* Struct for vector feature displaying attributes */
typedef struct g_vect_style
{
int color; /* Line color */
int symbol; /* Point symbol/line type */
float size; /* Symbol size. Unset for lines. */
int width; /* Line width. Also used for lines forming symbols i.e. X */
/*TODO:fill; Area fill pattern */
/*TODO:falpha; Area fill transparency */
/*TODO:lalpha; Line/boundary/point transparency */
/*TODO:struct *orientation; Symbol orientation */
struct g_vect_style *next; /* Point to next gvstyle struct if single point has multiple styles.
In such case feature with next style should be shifted. */
} gvstyle;
/* Struct for vector map (thematic mapping) */
typedef struct g_vect_style_thematic
{
int active;
int layer;
char *color_column;
char *symbol_column;
char *size_column;
char *width_column;
} gvstyle_thematic;
/* Line instance */
typedef struct g_line
{
int type;
float norm[3];
int dims, npts;
Point3 *p3;
Point2 *p2;
struct line_cats *cats; /* Store information about all layers/cats for thematic display */
gvstyle *style; /* Line instance look&feel */
signed char highlighted; /* >0 Feature is highlighted */
struct g_line *next;
} geoline;
/* Vector map (lines) */
typedef struct g_vect
{
int gvect_id;
int use_mem, n_lines;
int drape_surf_id[MAX_SURFS]; /* if you want 'em flat, define the surface */
int use_z;
int n_surfs;
char *filename;
float x_trans, y_trans, z_trans;
/* also maybe center & rotate? */
geoline *lines;
geoline *fastlines;
int (*bgn_read) (), (*end_read) (), (*nxt_line) ();
struct g_vect *next;
void *clientdata;
gvstyle_thematic *tstyle; /* thematic mapping */
gvstyle *style; /* Vector default look&feel */
gvstyle *hstyle; /* IMHO highlight should be per layer basis. */
} geovect;
/* Point instance */
typedef struct g_point
{
int dims;
Point3 p3;
struct line_cats *cats; /* Store information about all layers/cats for thematic display */
gvstyle *style;
signed char highlighted; /* >0 Feature is highlighted */
struct g_point *next;
} geopoint;
/* Vector map (points) */
typedef struct g_site
{
int gsite_id;
int drape_surf_id[MAX_SURFS]; /* ditto */
int n_surfs, n_sites;
int use_z, use_mem;
int has_z; /* set when file loaded */
char *filename;
transform attr_trans;
float x_trans, y_trans, z_trans;
geopoint *points;
int (*bgn_read) (), (*end_read) (), (*nxt_site) ();
struct g_site *next;
void *clientdata;
gvstyle_thematic *tstyle; /* thematic mapping */
gvstyle *style; /* points default look&feel */
gvstyle *hstyle; /* IMHO highlight should be per layer basis */
} geosite;
typedef struct
{
int data_id; /* id */
IFLAG file_type; /* file type */
unsigned int count; /* number of referencies to this file */
char *file_name; /* file name */
IFLAG data_type;
void *map; /* pointer to volume file descriptor */
double min, max; /* minimum, maximum value in file */
IFLAG status; /* current status */
IFLAG mode; /* current read mode */
void *buff; /* data buffer */
} geovol_file;
typedef struct
{
IFLAG att_src;
int hfile;
int (*user_func) ();
float constant;
void *att_data;
int changed;
} geovol_isosurf_att;
typedef struct
{
int inout_mode;
geovol_isosurf_att att[MAX_ATTS];
int data_desc;
unsigned char *data;
} geovol_isosurf;
typedef struct
{
int dir;
float x1, x2, y1, y2, z1, z2;
unsigned char *data;
int changed;
int mode, transp;
} geovol_slice;
typedef struct g_vol
{
int gvol_id;
struct g_vol *next;
int hfile;
int cols, rows, depths;
double ox, oy, oz;
double xres, yres, zres;
double xmin, xmax, ymin, ymax, zmin, zmax;
double xrange, yrange, zrange;
float x_trans, y_trans, z_trans;
int draw_wire;
int n_isosurfs;
geovol_isosurf *isosurf[MAX_ISOSURFS];
int isosurf_x_mod, isosurf_y_mod, isosurf_z_mod;
IFLAG isosurf_draw_mode;
int n_slices;
geovol_slice *slice[MAX_SLICES];
int slice_x_mod, slice_y_mod, slice_z_mod;
IFLAG slice_draw_mode;
void *clientdata;
} geovol;
struct lightdefs
{
float position[4]; /* X, Y, Z, (1=local/0=inf) */
float color[3]; /* R, G, B */
float ambient[3]; /* R, G, B */
float emission[3]; /* R, G, B */
float shine; /* 0. to 128. */
};
struct georot
{
int do_rot; /* do rotation */
double rot_angle; /* rotation angle */
double rot_axes[3]; /* rotation axis */
GLdouble rotMatrix[16]; /* rotation matrix */
};
typedef struct
{
int coord_sys; /* latlon, equal area, etc */
int view_proj; /* perspective, ortho */
int infocus; /* fixed center of view - true or false */
float from_to[2][4];
struct georot rotate;
int twist, fov, incl, look; /* 10ths of degrees */
float real_to[4], vert_exag; /* a global Z exag */
float scale;
struct lightdefs lights[MAX_LIGHTS];
} geoview;
typedef struct
{ /* need to add elements here for off_screen drawing */
float nearclip, farclip, aspect;
short left, right, bottom, top; /* Screen coordinates */
int bgcol;
} geodisplay;
extern void (*Cxl_func) ();
extern void (*Swap_func) ();
/* Key frames */
/* these have to be 1 << KF_id_index */
#define KF_FROMX_MASK 0x00000001
#define KF_FROMY_MASK 0x00000002
#define KF_FROMZ_MASK 0x00000004
#define KF_FROM_MASK 0x00000007
#define KF_DIRX_MASK 0x00000008
#define KF_DIRY_MASK 0x00000010
#define KF_DIRZ_MASK 0x00000020
#define KF_DIR_MASK 0x00000038
#define KF_FOV_MASK 0x00000040
#define KF_TWIST_MASK 0x00000080
#define KF_ALL_MASK 0x000000FF
#define KF_NUMFIELDS 8
#define KF_LINEAR 111
#define KF_SPLINE 222
#define KF_LEGAL_MODE(m) (m == KF_LINEAR || m == KF_SPLINE)
#define KF_FROMX 0
#define KF_FROMY 1
#define KF_FROMZ 2
#define KF_DIRX 3
#define KF_DIRY 4
#define KF_DIRZ 5
#define KF_FOV 6
#define KF_TWIST 7
#define FM_VECT 0x00000001
#define FM_SITE 0x00000002
#define FM_PATH 0x00000004
#define FM_VOL 0x00000008
#define FM_LABEL 0x00000010
typedef struct view_node
{
float fields[KF_NUMFIELDS];
} Viewnode;
typedef struct key_node
{
float pos, fields[KF_NUMFIELDS];
int look_ahead;
unsigned long fieldmask;
struct key_node *next, *prior;
} Keylist;
/* Bring all the function prototypes */
#include <grass/defs/ogsf.h>
#endif /* GRASS_OGSF_H */
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