Properties

The user can modify the geometry information using the Arc Revolution Geometry property page.

Figure 1  Arc Revolution Surface property page

•     Arc Radius: Defines the radius of the arc.

•     Arc Start Angle: Defines the start angle of the arc. The start angle of the arc is toward +Y axis.

•     Arc End Angle: Defines the end angle of the arc.

•     Spin Radius: Defines the radius of the arc revolution. It is toward +Z axis.

•     Spin Start Angle: Defines the start angle of the arc revolution. The start angle of the arc is toward +X axis.

•     Spin End Angle: Defines the end angle of the arc revolution.

•     Vertical Offset: Defines a offset distance to Z axis.

•     Open Face: Define a fan shaped surface on Spin start angle and/or Spin end angle. The face surface is generated when the check box is unchecked.

Figure 2  Dimensions

•     Helix Curve: If user checks this option, then the arc center curve is defined on a helix curve.

Figure 3  A center position on the generated helix curve

•    Pitch: Defines the pitch length of the helix center curve.

•    Total Depth: Defines the total depth of the helix center curve.

•    Rotational Direction: CCW(Counterclockwise), and CW(Clockwise) can be available.

Figure 4  Definitions of Pitch, Total Depth, and Rotational Direction of the Helix Curve

•    Arc Center Offset: Defines additional options of the Helix Curve.

o  Expected CP Angle (Degree): Defines a negative direction of center offset. The angle means that definitions of expected Contact Point.

o  Offset Distance: Defines an offset length in order to define a center point of real arc-curve.

Figure 5  Definitions of Expected CP Angle and Offset Distance of the Arc Center Offset option of the Helix Curve