Specifies the start parameter for an ellipse.

See Also | Example

Signature

object.StartParameter

object

Ellipse
The object or objects this property applies to.

StartParameter

Double; read-write
The valid range is 0 to 2*PI.

Remarks

The start and end parameters of the ellipse are calculated based on the following equation:

P(Theta) = A * cos(Theta) + B * sin(Theta)

where A and B are the semimajor and -minor axes respectively.

For example, if your start angle is Theta1, the corresponding start parameter is P(Theta1) calculated based on the above formula. Similarly, if your end angle is Theta2, the corresponding end parameter is P(Theta2) calculated based on the above formula.

You can use either angle or parameter to create the ellipse.