>>2225507You can do this with tiled clones in Inkscape pretty easily, although lining them up is always tedious. The trick for radials is to scale X and Y by the correct (very small, negative) number and tick cumulate when generating. Straight halftones (on the right) just need a larger negative number and you can tweak with the exponent, no cumulation required. You can just use union to make the whole thing one path then export to svg to get it into illustrator.
