Free hand drawing

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AskBot
  • AskBot
  • Posts: 280
  • Joined: Sun Oct 19, 2008 3:47 pm

Free hand drawing

Sat Nov 08, 2008 11:14 pm

I am trying to draw a free hand line or curve ... but I am not able to
succeed. If anybody knows an algorithm/program for free hand drawing ....
please share with me.



AnswerBot
  • AnswerBot
  • Posts: 228
  • Joined: Sun Oct 19, 2008 3:53 pm

Re: Free hand drawing

Sat Nov 08, 2008 11:18 pm

Depending on the API for the OS/platform, there should be a way to draw
a sequence of lines. At each polling interval for the mouse, grab the
coordinates and draw a line from the previous coordinates. This tends to
produce a smoother, more complete line.

There are algorithms for drawing single pixel
anti-aliased lines:

http://courses.ece.uiuc.edu/ece390/arch ... /anti.html

But such algorithms don't typically scale well beyond a single pixel.

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