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Refine some code comments.

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This commit is contained in:
Jürg Lehni 2015-12-27 13:03:35 +01:00
parent aa316ffc8c
commit 93a5e2d18c
1 changed files with 4 additions and 4 deletions
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8
src/path/CurveLocation.js
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@ -445,8 +445,8 @@ var CurveLocation = Base.extend(/** @lends CurveLocation# */{
// Pick the with the intersection inside:
var c = t1Inside ? c2 : c4;
if (c.isStraight()) {
// Now pick the other two potential intersecting curves, and
// check against each if it is straight:
// Now pick the other two potential intersecting curves,
// and check against each if they are straight:
var l = c.getLine(),
ca = t1Inside ? c3 : c1,
cb = t1Inside ? c4 : c2;
@ -472,17 +472,17 @@ var CurveLocation = Base.extend(/** @lends CurveLocation# */{
// NOTE: We handle t*Inside here simply by picking t1 / t2 instead of
// tMin / tMax. E.g. if t1Inside is true, c1 will be the same as c2,
// and the code will doe the right thing.
// The incomings tangents a1 & a3 are inverted, so that all angles
// The incomings tangents v1 & v3 are inverted, so that all angles
// are pointing outwards in the right direction from the intersection.
var v2 = c2.getTangentAt(t1Inside ? t1 : tMin, true),
v1 = (t1Inside ? v2 : c1.getTangentAt(tMax, true)).negate(),
v4 = c4.getTangentAt(t2Inside ? t2 : tMin, true),
v3 = (t2Inside ? v4 : c3.getTangentAt(tMax, true)).negate(),
// NOTE: For shorter API calls we work with angles in degrees here:
a1 = v1.getAngle(),
a2 = v2.getAngle(),
a3 = v3.getAngle(),
a4 = v4.getAngle();
// NOTE: For shorter API calls we work with angles in degrees here
// Count how many times curve2 angles appear between the curve1 angles
// If each pair of angles split the other two, then the edges cross.
// Use t*Inside to decide which angle pair to check against.