/usr/include/astrometry/plotgrid.h is in libastrometry-dev 0.70+dfsg-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 | /*
# This file is part of the Astrometry.net suite.
# Licensed under a 3-clause BSD style license - see LICENSE
*/
#ifndef PLOTGRID_H
#define PLOTGRID_H
#include "astrometry/plotstuff.h"
struct plotgrid_args {
anbool dolabel;
double rastep;
double decstep;
double ralabelstep;
double declabelstep;
int ralabeldir;
int declabeldir;
// Range of values to plot; default (0) is to choose sensible limits
double ralo;
double rahi;
double declo;
double dechi;
// these strings are owned by the plotgrid object (will be free()d)
char* raformat;
char* decformat;
};
typedef struct plotgrid_args plotgrid_t;
plotgrid_t* plot_grid_get(plot_args_t* pargs);
void* plot_grid_init(plot_args_t* args);
int plot_grid_set_formats(plotgrid_t* grid, const char* raformat, const char* decformat);
int plot_grid_command(const char* command, const char* cmdargs,
plot_args_t* args, void* baton);
int plot_grid_plot(const char* command, cairo_t* cr,
plot_args_t* args, void* baton);
void plot_grid_free(plot_args_t* args, void* baton);
#define DIRECTION_DEFAULT 0
#define DIRECTION_POS 1
#define DIRECTION_NEG 2
#define DIRECTION_POSNEG 3
#define DIRECTION_NEGPOS 4
void plot_grid_add_label(plot_args_t* pargs, double ra, double dec,
double lval, const char* format);
int plot_grid_find_ra_label_location(plot_args_t* pargs, double ra, double cdec, double decmin, double decmax, int dirn, double* pdec);
int plot_grid_find_dec_label_location(plot_args_t* pargs, double dec, double cra, double ramin, double ramax, int dirn, double* pra);
DECLARE_PLOTTER(grid);
#endif
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