rowcol.h File Reference

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Macros
#define	VXRES(gs)   (gs->x_mod * gs->xres)
#define	VYRES(gs)   (gs->y_mod * gs->yres)
#define	VROWS(gs)   (int)((gs->rows -1)/gs->y_mod)
#define	VCOLS(gs)   (int)((gs->cols -1)/gs->x_mod)
#define	DRC2OFF(gs, drow, dcol)   (int)((dcol) + (drow) * gs->cols)
#define	Y2DROW(gs, py)   (int)((gs->yrange - (py))/gs->yres)
#define	X2DCOL(gs, px)   (int)((px)/gs->xres)
#define	XY2OFF(gs, px, py)   (int)DRC2OFF(gs, Y2DROW(gs,py), X2DCOL(gs,px))
#define	Y2VROW(gs, py)   (int)((gs->yrange - (py))/(gs->yres * gs->y_mod))
#define	X2VCOL(gs, px)   (int)((px)/(gs->xres * gs->x_mod))
#define	VROW2DROW(gs, vrow)   (int)(gs->y_mod * (vrow))
#define	VCOL2DCOL(gs, vcol)   (int)(gs->x_mod * (vcol))
#define	DROW2Y(gs, drow)   (gs->yrange - ((drow) * gs->yres))
#define	DCOL2X(gs, dcol)   ((dcol) * gs->xres)
#define	VROW2Y(gs, vrow)   (gs->yrange - ((vrow) * gs->yres * gs->y_mod))
#define	VCOL2X(gs, vcol)   ((vcol) * gs->xres * gs->x_mod)

Macro Definition Documentation

DCOL2X

#define DCOL2X	(		gs,
			dcol
	)		((dcol) * gs->xres)

Definition at line 36 of file rowcol.h.

DRC2OFF

#define DRC2OFF	(		gs,
			drow,
			dcol
	)		(int)((dcol) + (drow) * gs->cols)

Definition at line 17 of file rowcol.h.

Referenced by calc_norm(), GS_get_cat_at_xy(), GS_get_norm_at_xy(), GS_get_val_at_xy(), and viewcell_tri_interp().

DROW2Y

#define DROW2Y	(		gs,
			drow
	)		(gs->yrange - ((drow) * gs->yres))

Definition at line 35 of file rowcol.h.

VCOL2DCOL

#define VCOL2DCOL	(		gs,
			vcol
	)		(int)(gs->x_mod * (vcol))

Definition at line 32 of file rowcol.h.

Referenced by GS_get_cat_at_xy(), GS_get_norm_at_xy(), GS_get_val_at_xy(), gs_point_is_masked(), and viewcell_tri_interp().

VCOL2X

#define VCOL2X	(		gs,
			vcol
	)		((vcol) * gs->xres * gs->x_mod)

Definition at line 40 of file rowcol.h.

Referenced by get_vert_intersects(), gs_point_is_masked(), in_vregion(), seg_intersect_vregion(), and viewcell_tri_interp().

VCOLS

#define VCOLS

(

gs

)

(int)((gs->cols -1)/gs->x_mod)

Definition at line 14 of file rowcol.h.

Referenced by get_horz_intersects(), get_vert_intersects(), gs_calc_normals(), gs_point_is_masked(), gsd_display_fringe(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), in_vregion(), seg_intersect_vregion(), and viewcell_tri_interp().

VROW2DROW

#define VROW2DROW	(		gs,
			vrow
	)		(int)(gs->y_mod * (vrow))

Definition at line 31 of file rowcol.h.

Referenced by GS_get_cat_at_xy(), GS_get_norm_at_xy(), GS_get_val_at_xy(), gs_point_is_masked(), and viewcell_tri_interp().

VROW2Y

#define VROW2Y	(		gs,
			vrow
	)		(gs->yrange - ((vrow) * gs->yres * gs->y_mod))

Definition at line 39 of file rowcol.h.

Referenced by get_horz_intersects(), gs_point_is_masked(), in_vregion(), seg_intersect_vregion(), and viewcell_tri_interp().

VROWS

#define VROWS

(

gs

)

(int)((gs->rows -1)/gs->y_mod)

Definition at line 13 of file rowcol.h.

Referenced by get_horz_intersects(), get_vert_intersects(), gs_calc_normals(), gs_point_is_masked(), gsd_display_fringe(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), in_vregion(), seg_intersect_vregion(), and viewcell_tri_interp().

VXRES

#define VXRES

(

gs

)

(gs->x_mod * gs->xres)

Definition at line 9 of file rowcol.h.

Referenced by get_horz_intersects(), get_vert_intersects(), gs_point_is_masked(), and viewcell_tri_interp().

VYRES

#define VYRES

(

gs

)

(gs->y_mod * gs->yres)

Definition at line 10 of file rowcol.h.

Referenced by get_horz_intersects(), get_vert_intersects(), gs_point_is_masked(), and viewcell_tri_interp().

X2DCOL

#define X2DCOL	(		gs,
			px
	)		(int)((px)/gs->xres)

Definition at line 21 of file rowcol.h.

X2VCOL

#define X2VCOL	(		gs,
			px
	)		(int)((px)/(gs->xres * gs->x_mod))

Definition at line 28 of file rowcol.h.

Referenced by get_vert_intersects(), GS_get_cat_at_xy(), GS_get_norm_at_xy(), GS_get_val_at_xy(), gs_point_is_masked(), and viewcell_tri_interp().

XY2OFF

#define XY2OFF	(		gs,
			px,
			py
	)		(int)DRC2OFF(gs, Y2DROW(gs,py), X2DCOL(gs,px))

Definition at line 24 of file rowcol.h.

Y2DROW

#define Y2DROW	(		gs,
			py
	)		(int)((gs->yrange - (py))/gs->yres)

Definition at line 20 of file rowcol.h.

Y2VROW

#define Y2VROW	(		gs,
			py
	)		(int)((gs->yrange - (py))/(gs->yres * gs->y_mod))

Definition at line 27 of file rowcol.h.

Referenced by get_horz_intersects(), GS_get_cat_at_xy(), GS_get_norm_at_xy(), GS_get_val_at_xy(), gs_point_is_masked(), and viewcell_tri_interp().