The file develops an 'n by n' matrix containing a solid circle of ones of diameter 'n' pixels, over a background of zero pixels.
Pixel positions are calculated on a nearest-fit basis, using trigonometry.
Such a circle can be an image, or part of an image, or an image mask.
A hollow circle (line circle) is also possible.
John T. McCarthy (2023). imcircle (https://www.mathworks.com/matlabcentral/fileexchange/128-imcircle), MATLAB Central File Exchange. Retrieved .
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Up to now, this file generated only a solid circle (disk).
I wish to include an option to have a hollow circle (line circle).