a quick diversion
i needed a break from studio so i decided to tackle a problem that had been bothering me for a while....
if i wanted to lasercut (or mill) a perforated pattern, normally i'd take the image in photoshop, use the color halftone filter, take it into illustrator and use live trace, export to a dwg and cut it....
there were a few problems with this method. for one, the halftone generated in PS would have overlapping dots... in a field of black, for example, it would remain solid black. If you're cutting this, there's no material to keep the sheet together.
secondly, going through the illustrator live trace gives you distorted circles since it's interpolating from a raster image, so it's not ideal.
for this, i used rhino and grasshopper.... used create height field from image, extracted the points from the heightfield surface, then used grasshopper to scale a circle based on the relative height of each point, and put a limit on the maximum size (based on the initial grid of the image surface) so there would be no overlaps.
so. just a quick diversion. 12 days till pens down.