Interference fringes can be simulated from a surface using the Analysis | Interference | Fringes menu item while viewing surface data. Alternately, the button can be used.
|Grayscale only||Interference fringe images are, by default, color coded based on the simulation wavelength. This behavior can be defeated by selecting this option. The interference image will contain only grayscale values.|
|Max. Image Resolution||The maximum number of horizontal or vertical pixels used in the fringe image.|
|Wedge factor||Scale factor relating wave of surface height to simulated fringe. 1 fringe is always equal to 1 wave of optical path difference (OPD). For a single pass interferometer with a single reflection from the test surface, this value is 0.5 wave of test surface height error per wave of OPD.|
|Wavelength||Wavelength of the simulated coherent light source.|
|Added Piston/Tilts||Piston and tilt terms to add to the simulation. Units are specified in waves of optical path difference.|