HP 5961-0509 manual 17Anisotropic and Isotropic Scaling, 21-28The Polygon Group

Figure 21-17Anisotropic and Isotropic Scaling

zRadius — Specifies the distance from the current pen location to the start of the wedge’s arc. Since the wedge is a portion of a circle, this parameter is the radius of the circle. It specifies the distance from the current pen location (which becomes the center of the circle), to any point on the circumference of the circle.

The radius is interpreted in current units: as user-units when scaling is on; as plotter units when scaling is off. The sign (positive or negative) of the radius determines the location of the zero-degree reference point. The illustration following the parameter descriptions shows the location of the zero-degree reference point for a positive and a negative radius.

zSweep Angle — Specifies the number of degrees through which the arc is drawn. A positive sweep angle is in the direction of the +X-axis to the +Y-axis; a negative sweep angle is in the direction of the +X-axis to the –Y-axis. However, the relative position of the +X-axis to the +Y-axis can change as a result of scaling point or scaling factor changes, thus, changing the direction of the sweep angle. Also, if you specify a start angle greater than 360°, a start angle equal to the remainder of the start angle/360° is used.

zChord Angle — Specifies the chord angle used to draw the arc. The default is a chord angle of 5 degrees. Refer to the Arc Absolute (AA) command discussion in Chapter 20 for further information on chords and chord angles.

21-28The Polygon Group EN