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Add performance improvement of _getMonoCurves() by filtering curves that have end points and control points sorted in y direction.

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iconexperience 2016-01-16 15:05:49 +01:00
parent b33777274d
commit 5de9558533
1 changed files with 4 additions and 2 deletions
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6
src/path/PathItem.Boolean.js
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@ -924,8 +924,10 @@ Path.inject(/** @lends Path# */{
y1 = v[3], y1 = v[3],
y2 = v[5], y2 = v[5],
y3 = v[7]; y3 = v[7];
if (Curve.isStraight(v)) { if (Curve.isStraight(v) ||
// Handling straight curves is easy. y0 >= y1 === y1 >= y2 && y1 >= y2 === y2 >= y3) {
// Straight curves and curves with end and control points sorted
// in y direction are guaranteed to be monotone in y direction.
insertCurve(v); insertCurve(v);
} else { } else {
// Split the curve at y extrema, to get bezier curves with clear // Split the curve at y extrema, to get bezier curves with clear