scratchfoundation/paper.js
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Add comments about initial guess.

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This commit is contained in:
Jürg Lehni 2011-03-07 00:17:43 +00:00
parent 83fea3bf4e
commit 58f5c8554e
1 changed files with 4 additions and 1 deletions
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5
src/path/Curve.js
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@ -265,7 +265,10 @@ var Curve = this.Curve = Base.extend({
return Curve.getPartLength(
p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t) - length;
}
return MathUtils.brent(f, 0, length / bezierLength, 10e-6);
// Use length / bezierLength for an initial guess for b, to bring
// us closer:
return MathUtils.brent(f, 0, length / bezierLength,
MathUtils.TOLERANCE);
}
}
}, new function() {