Add scat. Temporary fix to rc r.e. note groups.

src/cmd/scat/plate.h

@@ -0,0 +1,138 @@
+#define	RAD(x)	((x)*PI_180)
+#define	DEG(x)	((x)/PI_180)
+#define ARCSECONDS_PER_RADIAN	(DEG(1)*3600)
+#define input_nybble(infile)    input_nbits(infile,4)
+
+typedef float	Angle;	/* in radians */
+
+enum
+{
+	/*
+	 * parameters for plate
+	 */
+	Pppo1	= 0,
+	Pppo2,
+	Pppo3,
+	Pppo4,
+	Pppo5,
+	Pppo6,
+	Pamdx1,
+	Pamdx2,
+	Pamdx3,
+	Pamdx4,
+	Pamdx5,
+	Pamdx6,
+	Pamdx7,
+	Pamdx8,
+	Pamdx9,
+	Pamdx10,
+	Pamdx11,
+	Pamdx12,
+	Pamdx13,
+	Pamdx14,
+	Pamdx15,
+	Pamdx16,
+	Pamdx17,
+	Pamdx18,
+	Pamdx19,
+	Pamdx20,
+	Pamdy1,
+	Pamdy2,
+	Pamdy3,
+	Pamdy4,
+	Pamdy5,
+	Pamdy6,
+	Pamdy7,
+	Pamdy8,
+	Pamdy9,
+	Pamdy10,
+	Pamdy11,
+	Pamdy12,
+	Pamdy13,
+	Pamdy14,
+	Pamdy15,
+	Pamdy16,
+	Pamdy17,
+	Pamdy18,
+	Pamdy19,
+	Pamdy20,
+	Ppltscale,
+	Pxpixelsz,
+	Pypixelsz,
+	Ppltra,
+	Ppltrah,
+	Ppltram,
+	Ppltras,
+	Ppltdec,
+	Ppltdecd,
+	Ppltdecm,
+	Ppltdecs,
+	Pnparam,
+};
+
+typedef	struct	Plate	Plate;
+struct	Plate
+{
+	char	rgn[7];
+	char	disk;
+	Angle	ra;
+	Angle	dec;
+};
+
+typedef	struct	Header	Header;
+struct	Header
+{
+	float	param[Pnparam];
+	int	amdflag;
+
+	float	x;
+	float	y;
+	float	xi;
+	float	eta;
+};
+typedef	long	Type;
+
+typedef struct	Image	Image;
+struct	Image
+{
+	int	nx;
+	int	ny;	/* ny is the fast-varying dimension */
+	Type	a[1];
+};
+
+int	nplate;
+Plate	plate[2000];		/* needs to go to 2000 when the north comes */
+double	PI_180;
+double	TWOPI;
+int	debug;
+struct
+{
+	float	min;
+	float	max;
+	float	del;
+	double	gamma;
+	int	neg;
+} gam;
+
+char*	hms(Angle);
+char*	dms(Angle);
+double	xsqrt(double);
+Angle	dist(Angle, Angle, Angle, Angle);
+Header*	getheader(char*);
+char*	getword(char*, char*);
+void	amdinv(Header*, Angle, Angle, float, float);
+void	ppoinv(Header*, Angle, Angle);
+void	xypos(Header*, Angle, Angle, float, float);
+void	traneqstd(Header*, Angle, Angle);
+Angle	getra(char*);
+Angle	getdec(char*);
+void	getplates(void);
+
+Image*	dssread(char*);
+void	hinv(Type*, int, int);
+int	input_bit(Biobuf*);
+int	input_nbits(Biobuf*, int);
+void	qtree_decode(Biobuf*, Type*, int, int, int, int);
+void	start_inputing_bits(void);
+Bitmap*	image(Angle, Angle, Angle, Angle);
+int	dogamma(int);