scratchfoundation/paper.js
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Link previous & next curves while returning monotone curves

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hkrish 2013-12-29 13:03:39 +01:00
parent 0b4da28c1e
commit 1bacbc32e9
1 changed files with 15 additions and 0 deletions
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15
src/path/Path.js
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@ -1718,6 +1718,7 @@ var Path = PathItem.extend(/** @lends Path# */{
*/
_getMonotoneCurves: function() {
var monoCurves = this._monotoneCurves,
lastCurve,
// TODO: replace instances with constants ( /*#=*/ ?)
INCREASING = 1,
DECREASING = -1,
@ -1733,7 +1734,13 @@ var Path = PathItem.extend(/** @lends Path# */{
} else if (y0 > y1) {
dir = DECREASING;
}
// Add a reference to subsequent curves
v.push(dir);
if (lastCurve) {
v[9] = lastCurve;
lastCurve[10] = v;
}
lastCurve = v;
monoCurves.push(v);
}
// Handle bezier curves. We need to chop them into smaller curves
@ -1785,7 +1792,11 @@ var Path = PathItem.extend(/** @lends Path# */{
}
for (i = 0, li = curves.length; i < li; i++) {
crv = curves[i];
// Filter out curves of zero length
vals = crv.getValues();
if (Curve.getLength(vals) === 0)
continue;
// Handle linear and cubic curves seperately
if (crv.isLinear()) {
insertValues(vals);
} else {
@ -1799,6 +1810,10 @@ var Path = PathItem.extend(/** @lends Path# */{
}
}
}
// Link, first and last curves
lastCurve = monoCurves[monoCurves.length - 1];
monoCurves[0][9] = lastCurve;
lastCurve.push(monoCurves[0]);
}
return monoCurves;
},