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/*
* EPS.H -- Include definitions for EPS hardcopy routines.
*/
/* Handy macro definitions */
#define MONO(rd,gn,bl) ((int)(rd*11 + gn*16 + bl*5) >> 5) /*.33R+ .5G+ .17B*/
#undef MAX
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#undef MIN
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define Orientation(ps) ( ps->page.orientation )
#define Scale(ps) ( ps->page.scale )
#define MaxScale(ps) ( ps->page.maxscale )
#define PageType(ps) ( ps->page.page_type )
#define DoAutoScale(ps) ( ps->page.flags & EPS_AUTOSCALE )
#define DoAutoRotate(ps) ( ps->page.flags & EPS_AUTOROTATE )
#define DoMaxAspect(ps) ( ps->page.flags & EPS_MAXASPECT )
#define PIX_PER_LINE 72
/* Compression options. */
#define NoCompression 0 /* Don't compress image */
#define RLECompression 1 /* RLE compression */
#define LZWCompression 2 /* LZW compression (not implemted) */
#define JPEGCompression 3 /* JPEG compression (not implemted) */
/* Output color classes. */
#define EPS_GRAYSCALE 0 /* Write a grayscale image */
#define EPS_PSEUDOCOLOR 1 /* Write a pseudocolor image */
#define EPS_TRUECOLOR 2 /* Write a RGB image */
/* Page option flags. */
#define EPS_PORTRAIT 0 /* Page orientations */
#define EPS_LANDSCAPE 1
#define EPS_AUTOSCALE 0x01 /* Auto scale to fit on page */
#define EPS_AUTOROTATE 0x02 /* Auto rotate to fit on page */
#define EPS_MAXASPECT 0x04 /* Increase scale to max aspect */
/* Transformation parameters. */
#define EPS_UNITARY 0
#define EPS_LINEAR 1
#define EPS_LOG 2
/* Page layout structure. */
typedef struct {
int orientation; /* page orioentation */
float scale; /* image scale factor */
float maxscale; /* maxaspect image scale factor */
int dpi; /* dpi resolution */
int page_type; /* type of paper being used */
int flags; /* option flags */
} PSPage, *PSPagePtr;
/* Colormap structure. */
typedef struct {
int IsDefault; /* Are we using the default colormap? */
int ncolors; /* number of colormap colors */
int min, max; /* image min/max */
unsigned char r[256]; /* red colormap */
unsigned char g[256]; /* green colormap */
unsigned char b[256]; /* blue colormap */
char *cmap_name; /* colormap name */
} PSCmap, *PSCmapPtr;
/* Main EPS structure. */
typedef struct {
int cols; /* num output columns */
int rows; /* num output rows */
int colorClass; /* output color class */
int compression; /* output compression type */
int annotate; /* annotate the output image? */
int llx, lly, urx, ury; /* image coordinate corners */
float z1, z2; /* zscale transform values */
int ztype; /* type of transformation */
float offset, scale; /* brightness/contrast values */
char *label; /* label string */
PSPage page; /* Page layout structure */
PSCmap cmap; /* Colormap struct */
} PSImage, *PSImagePtr;
/* Page sizes and resolution information. */
#define EPS_LETTER 0
#define EPS_LEGAL 1
#define EPS_A4 2
#define EPS_B5 3
#define EPS_BSIZE 4
#define EPS_4BY5 5
#define EPS_35MM 6
/* Page layout definitions. */
#define X_ANNOT_MARGIN 30 /* margin in pixels for annotation */
#define Y_ANNOT_MARGIN 60 /* margin in pixels for annotation */
#define TITLE_OFFSET 20 /* Offset for title string */
#define AXIS_OOFFSET 7 /* Outer offset for axis */
#define AXIS_IOFFSET 2 /* Inner offset for axis */
#define AXIS_OWIDTH 1.5 /* Outer axis width */
#define AXIS_IWIDTH 1.0 /* Inner axis width */
#define MAJOR_TICK_SIZE 5 /* Size of major tic mark */
#define MAJOR_TICK_WIDTH 1.5 /* Width of major tic mark */
#define MINOR_TICK_SIZE 3 /* Size of major tic mark */
#define MINOR_TICK_WIDTH 0.5 /* Width of major tic mark */
#define NTICMARKS 5 /* Number of major tick marks */
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