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I had to do something similar once. I ended up using ImageMagick and ptrace get a nice "silhouette" of my image and use the generated data to draw a path using

by slig 15y ago

I had to do something similar once. I ended up using ImageMagick and ptrace get a nice "silhouette" of my image and use the generated data to draw a path using Raphael. convert IMAGE.png -channel matte -separate +matte -flip ppm:- | potrace -k 0.95 -u 1 -s

newtron 15y ago
That's interesting, I'll definitely take a look at Raphael. Did you just need the silhouette, or did Raphael let you do the click through thing too?
- slig 15y ago
  I was able to do the click through using the invisible path. The project was a kind of weird puzzle, so the click through was a must. I upped my prototype here: http://dl.dropbox.com/u/491131/puzzle/puzzle.html http://dl.dropbox.com/u/491131/puzzle/puzzle.html You can only drag the camel. Eventually I gave up because I wasn't able to drag the piece correctly if it was rotated.
  - newtron 15y ago
    That's awesome, thanks for showing me that. It would definitely be cool to implement something similar for browsers with SVG support, then fallback to the generated spans for those without.
    - slig 15y ago
      Raphael is so awesome that it works even on IE, using VML, with the same sane API.