Comments on: Example 3-4: Drawing a Continuous Line http://www.learningprocessing.com A Beginner's Guide to Programming Images, Animation, and Interaction by Daniel Shiffman Thu, 09 Feb 2012 16:27:00 +0000 hourly 1 By: Daniel Shiffman http://www.learningprocessing.com/examples/chapter-3/example-3-4/comment-page-1/#comment-8113 Daniel Shiffman Mon, 04 Jan 2010 19:19:38 +0000 http://www.learningprocessing.com/wp/?page_id=297#comment-8113 Processing always initializes the mouse location at 0,0 for the first frame. You could check and make sure the values are not 0,0 before you draw: <pre> if (!(pmouseX == 0 && pmouseY == 0)) { line(pmouseX, pmouseY, mouseX, mouseY); } </pre> And even use your own variable to set up another starting point for when the values are 0,0. Processing always initializes the mouse location at 0,0 for the first frame. You could check and make sure the values are not 0,0 before you draw:

  if (!(pmouseX == 0 && pmouseY == 0)) {
    line(pmouseX, pmouseY, mouseX, mouseY);
  }

And even use your own variable to set up another starting point for when the values are 0,0.

]]> By: Rupert http://www.learningprocessing.com/examples/chapter-3/example-3-4/comment-page-1/#comment-8100 Rupert Sun, 03 Jan 2010 23:39:20 +0000 http://www.learningprocessing.com/wp/?page_id=297#comment-8100 What would be the easiest way to get the line to start from a default point that was different from (0,0)? What would be the easiest way to get the line to start from a default point that was different from (0,0)?

]]>