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Handle CurveLocation on path with only one segment

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This commit is contained in:
Jürg Lehni 2020-01-15 09:40:49 +01:00
parent a2069fc73d
commit efcdd7bda8
2 changed files with 15 additions and 5 deletions
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18
src/path/CurveLocation.js
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@ -57,13 +57,16 @@ var CurveLocation = Base.extend(/** @lends CurveLocation# */{
this._intersection = this._next = this._previous = null;
},
_setCurve: function(curve) {
var path = curve._path;
_setPath: function(path) {
// We only store the path to verify versions for cached values.
// To ensure we use the right path (e.g. after splitting), we shall
// always access the path on the result of getCurve().
this._path = path;
this._version = path ? path._version : 0;
},
_setCurve: function(curve) {
this._setPath(curve._path);
this._curve = curve;
this._segment = null; // To be determined, see #getSegment()
// Also store references to segment1 and segment2, in case path
@ -74,7 +77,14 @@ var CurveLocation = Base.extend(/** @lends CurveLocation# */{
},
_setSegment: function(segment) {
this._setCurve(segment.getCurve());
var curve = segment.getCurve();
if (curve) {
this._setCurve(curve);
} else {
this._setPath(segment._path);
this._segment1 = segment;
this._segment2 = null;
}
this._segment = segment;
this._time = segment === this._segment1 ? 0 : 1;
// To avoid issues with imprecision in getCurve() / trySegment()
@ -455,7 +465,7 @@ var CurveLocation = Base.extend(/** @lends CurveLocation# */{
!end && count ? roots[0] : 1);
// When no root was found, the full length was calculated. Use a
// fraction of it. By trial & error, 64 was determined to work well.
offsets.push(count ? offset : offset / 64);
offsets.push(count ? offset : offset / 32);
}
function isInRange(angle, min, max) {

2
test/tests/Path_Intersections.js
View file

@ -201,7 +201,7 @@ test('#1073#issuecomment-234305530', function() {
true]);
testIntersections(path1.getIntersections(path2), [
{ point: { x: 426.61172, y: 448 }, index: 0, time: 0.27769, crossing: true },
{ point: { x: 376, y: 480 }, index: 1, time: 0, crossing: false },
{ point: { x: 376, y: 480 }, index: 1, time: 0, crossing: true },
{ point: { x: 343.68011, y: 469.7389 }, index: 1, time: 0.77843, crossing: true },
{ point: { x: 336.40125, y: 463.59875 }, index: 2, time: 0.00608, crossing: true }
]);