ImagingPath.axialRay

raytracing.ImagingPath.axialRay(self)

This function returns the axial ray of the system, also known as the marginal ray for a point on axis (y=0) at the object.

Returns:

axialRay – The properties (i.e. height and the angle of the marginal ray). Another axial can be obtained with the opposite of the angle.

Return type:

object of Ray class

See also

raytracing.ImagingPath.marginalRays, raytracing.ImagingPath.chiefRay, raytracing.ImagingPath.principalRay