The graylevel distribution is chosen from a pop-up menu. Parameters are the number of lines and the number of pixels per line of the output image, and the vertical and horizontal extent of an individual rectangle. Chirp The Chirp function generates an exponentially decaying sine function with a given period. The Sine Star function generates an image where the grey levels at a specific radius from the center follow a sine function along the circumference of the circle. The Sine Wave command creates a horizontal sinewave pattern.
Parameters are the size of the output image, and the period and phase of the sinewave.
Rotate may be used to rotate the pattern to any angle.