scratchfoundation/paper.js
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Explain code a litter better.

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This commit is contained in:
Jürg Lehni 2011-07-09 10:11:50 +02:00
parent 8928a7b057
commit 8a6d53766e
1 changed files with 3 additions and 1 deletions
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4
src/path/Curve.js
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@ -322,7 +322,9 @@ var Curve = this.Curve = Base.extend(/** @lends Curve# */{
if (t >= 0 && t < 1 && Curve.evaluate(vals, t, 0).y > point.x) {
// If we're close to 0 and are not changing y-direction from the
// previous curve, do not count this root, as we're merely
// touching a tip.
// touching a tip. Passing 1 for Curve.evaluate()'s type means
// we're calculating tangents, and then check their y-slope for
// a change of direction:
if (t < Numerical.TOLERANCE && Curve.evaluate(
this.getPrevious().getValues(matrix), 1, 1).y
* Curve.evaluate(vals, t, 1).y >= 0)