Automated Crosshatching

by Andrew Heumann

Jun 20, 2011

a self-portrait processed with illustrator live trace and then sent to grasshopper for image-density weighted hatches and other modifications.

  • Wiktor Kidziak

    can you explain a bit about the process of 'image-density weighted hatches' please ?

     

    Jun 21, 2011

  • Andrew Heumann

    basically illustrator live trace produces a set of closed regions, which I export to rhino. in rhino I load the curves and the original image into grasshopper, and evaluate the brightness of the image at the center of each region. Then I use a script I wrote to automate baking hatches, and set the hatch scale to correspond to the brightness value.

    Jun 21, 2011

  • John Fredrickson

    So how does the hatch work? The darkness of the area determines the number of subdivisons? Can you post your ghx or a screenshot?

    Jun 21, 2011