HP 5961-0509 manual Example Using EA to Draw Rectangles, 21-18The Polygon Group

	Figure 21-12
Note	Any line drawn along the border of the effective window causes the
	line to be clipped, producing a line width one-half of the defined pen
	width. For example, all the lines drawn in the above example are half
	the width of the other lines since they are clipped at the window
	borders.
	The only difference between the EA command and the RA (Fill
	Rectangle Absolute) command is that the EA command produces
	an outlined rectangle, and RA, a filled one.
	The EA command clears the polygon buffer and then uses it to
	define the rectangle before drawing. Refer to Drawing Polygons
	at the beginning of this chapter for more information.
	The following example uses absolute coordinates to draw some
	rectangles. The same image is drawn later using the ER command
	instead. Compare this example with the ER example to understand
	the differences between the coordinates used (relative vs. absolute).
	Table 21-8 Example: Using EA to Draw Rectangles

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21-18The Polygon Group EN