One-line drawings • Hacker News Board

Re: One-line drawings

#11

Post by woolion » Sat, Apr 16, 2022, 8:00 AM UTC

Cool project, very inspiring!

I'm wondering if this could be used to generate drawings using line weight by using a brush tip and adjusting the Z coordinates. The "dessins abrégés" (abridged drawings) are a great historical antecedant by master artist Keisai would be a perfect match for this.

Re: One-line drawings

#12

Post by dunkmaster » Sat, Apr 16, 2022, 10:20 AM UTC

This one-line AI could be of interest: https://clipasso.github.io/clipasso/

Re: One-line drawings

#13

Post by huachimingo » Sat, Apr 16, 2022, 11:56 AM UTC

This reminds me somehow of Haiku/senryu poems: https://en.m.wikipedia.org/wiki/Haiku

Re: One-line drawings

#14

Post by qrv3w » Sat, Apr 16, 2022, 1:26 PM UTC

woolion wrote: post #11

Cool project, very inspiring! I'm wondering if this could be used to generate drawings using line weight by using a brush tip and adjusting the Z coordinates. The "dessins abrégés" (abridged drawings) are a great historical antecedant by master artist Keisai would be a perfect match for this.

That's a great idea! I think you're absolutely right - in the video of the plotter I used a pen that has a more flexible nib and pressing it down (especially at an angle) will add more line weight. I'll have to encode the line width along the line now :)

Re: One-line drawings

#15

Post by qrv3w » Sat, Apr 16, 2022, 1:28 PM UTC

Gualdrapo wrote: post #2

Didn't know about autotrace. I was supposing it would just trace the bitmap into a compound path, sort of what like potrace does, but the animation suggests it traces into a single path - which is absolutely great, as afterwards you can adjust the stroke width, linecaps and more thingies. Amazing!

Yeah potrace can do the same thing - trace a path of a bitmap. (Imagemagick can too). In my tests (with lots of line drawings) I felt autotrace generally had better results. Wish I kept the side-by-side comparisons to show...

Re: One-line drawings

#16

Post by qrv3w » Sat, Apr 16, 2022, 1:28 PM UTC

dunkmaster wrote: post #12

This one-line AI could be of interest: https://clipasso.github.io/clipasso/

Brilliant! Thanks for that link. I'm definitely going to incorporate that.

Re: One-line drawings

#17

Post by jstanley » Sat, Apr 16, 2022, 2:04 PM UTC

Cool project, nice work. FWIW, Inkscape has an extension called "Gcodetools" which can turn SVG paths into Gcode for you. But I totally get the desire to do it for yourself.

Re: One-line drawings

#18

Post by gilleain » Sat, Apr 16, 2022, 4:00 PM UTC

I was trying to do a similar-ish thing. Autotools looks useful. Parsing the SVG path was a bit of a nightmare.

For traversing the path, I considered the Chinese postman problem. There might be easier ways.

Re: One-line drawings

#19

Post by SnowHill9902 » Sat, Apr 16, 2022, 4:19 PM UTC

If that’s a line the canvas is very non Euclidean.

Re: One-line drawings

#20

Post by woolion » Sat, Apr 16, 2022, 5:31 PM UTC

qrv3w wrote: post #14

woolion wrote: post #11

Cool project, very inspiring! I'm wondering if this could be used to generate drawings using line weight by using a brush tip and adjusting the Z coordinates. The "dessins abrégés" (abridged drawings) are a great historical antecedant by master artist Keisai would be a perfect match for this.

That's a great idea! I think you're absolutely right - in the video of the plotter I used a pen that has a more flexible nib and pressing it down (especially at an angle) will add more line weight. I'll have to encode the line width along the line now :)

There is a Posca with a brush tip and good ink flow. The easiest to find is the Pentel, but does not flow that fast so you'd have to adjust the speed. So it might not be that easy, and require some experimentation...