Comments on: Example 15-14: “Pointillism” http://www.learningprocessing.com A Beginner's Guide to Programming Images, Animation, and Interaction by Daniel Shiffman Mon, 22 Mar 2010 14:53:41 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: admin http://www.learningprocessing.com/examples/chapter-15/example-15-14/comment-page-1/#comment-6537 admin Fri, 06 Nov 2009 02:33:47 +0000 http://www.learningprocessing.com/?page_id=607#comment-6537 Thanks for the correction. Thanks for the correction.

]]> By: Yahya http://www.learningprocessing.com/examples/chapter-15/example-15-14/comment-page-1/#comment-6526 Yahya Thu, 05 Nov 2009 15:30:22 +0000 http://www.learningprocessing.com/?page_id=607#comment-6526 It seems that several comments in these examples are misplaced. For example, in this code, we have: noStroke(); // Draw an ellipse at that location with that color fill(r,g,b,100); Surely the purpose of the call to noStroke() is to set up the fill()? In other languages, we might have something like: // Draw an ellipse at that location with that color and specified stroke parameters fill(r,g,b,100,strokeRed, strokeGreen, strokeBlue, strokeAlpha, strokeWidth); so the "noStroke()" is really equivalent simply to "strokeWidth = 0". Placing the "noStroke()" after the comment that introduces the ellipse drawing block has another advantage: the necessary code steps are less likely to get separated by mistake, thus: // Draw an ellipse at that location with that color noStroke(); fill(r,g,b,100); The blank line before the comment also helps to delineate the entire ellipse drawing block more clearly. It seems that several comments in these examples are misplaced. For example, in this code, we have:
noStroke();

// Draw an ellipse at that location with that color
fill(r,g,b,100);

Surely the purpose of the call to noStroke() is to set up the fill()? In other languages, we might have something like:
// Draw an ellipse at that location with that color and specified stroke parameters
fill(r,g,b,100,strokeRed, strokeGreen, strokeBlue, strokeAlpha, strokeWidth);
so the “noStroke()” is really equivalent simply to “strokeWidth = 0″. Placing the “noStroke()” after the comment that introduces the ellipse drawing block has another advantage: the necessary code steps are less likely to get separated by mistake, thus:

// Draw an ellipse at that location with that color
noStroke();
fill(r,g,b,100);

The blank line before the comment also helps to delineate the entire ellipse drawing block more clearly.

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