One of the big short comings of Zemax display window is that you can’t display Isolux lines (or any other contour Iso line such as Candela). IsoLux lines are used in a variety of different industries from Automotive to Street Lighting to show areas meeting a given illumination level but for some reason Zemax think they are either not needed or too difficult to implement. At the moment I have a display window that in False Colour just looks like it is 90% yellow/green and I need to show my customer the area that will have greater than his specified minimum lux level. Can anyone recommend a free (or cheap) graphics package that can take the text output from the display window and show IsoLux lines?
Thanks,
Andrew