The following is the format of fig output (fig 1.3).

The first line consists of four number:
	screen resolution (pixels/inch),
	screen origin (1 : upper rigth, 2 : upper left, 3 : lower left,
			4 : lower right),
	canvas width (pixels),
	canvas height (pixels)

The first integer of the rest of the lines represents the followings;

	ELLIPSE		1
	POLYLINE	2
	SPLINE		3	(quadratic spline)
	TEXT		4
	ARC		5
	BEGIN_COMPOUND	6
	END_COMPOUND	-BEGIN_COMPOUND

The detail of each object is:

ARC
	type (3 : circle by radius, 4 : circle by diameter, 5 : circular arc),
	line_style,
	thickness (pixels),
	dash_length (pixels),
	direction (0 : clockwise, 1 : counterclokwise),
	forward_arrow (0: off, 1: on),
	backward_arrow (0: off, 1: on),
	arrow_ht (pixels), arrow_wid (pixels), 
	center.x, center.y,
	point[0].x, point[0].y, (the 1st point the user entered)
	point[1].x, point[1].y, (the 2nd point or the last for type 3 or 4)
	point[2].x, point[2].y  (the last point if type is 5)

BEGIN_COMPOUND
	upperright_corner.x, upperright_corner.y,
	lowerleft_corner.x, lowerleft_corner.y

ELLIPSE
	type (1 : defined by radiuses, 2 : defined by diameters),
	line_style,
	thickness (pixels),
	dash_length (pixels),
	direction (is always 1),
	center.x, center.y,
	radius.x, radius.y,
	start.x, start.y, (the 1st point the user entered)
	end.x, end.y

LINE
	type (6 : polyline, 7 : box, 8 : polygon),
	line_style,
	thickness (pixels),
	dash_length (pixels),
	forward_arrow (0: off, 1: on),
	backward_arrow (0: off, 1: on),
	arrow_ht (pixels), arrow_wid (pixels),
	x1, y1,
	x2, y2,
	  .
	  .
	xn, yn,	(this will be the same as the 1st point for type 7 or 8)
	9999, 9999

SPLINE (quadratic spline)
	type (10: open spline, 11: closed spline),
	line_style,
	thickness (pixels),
	dash_length (pixels),
	forward_arrow (0: off, 1: on),
	backward_arrow (0: off, 1: on),
	arrow_ht (pixels), arrow_wid (pixels),
	x1, y1,
	x2, y2,
	  .
	  .
	xn, yn,	(this will be the same as the 1st point for type 11)
	9999, 9999

TEXT
	font,  (not used)
	size,  (not used)
	style, (not used)
	height (pixels), length (pixels),
	lowerleft_corner.x (pixels), lowerleft_corner.y (pixels),
	string (end at newline, \n)

There are only three line styles defined

	SOLID_LINE	0
	DASH_LINE	1
	DOTTED_LINE	2 (not implement)