scratchfoundation/paper.js
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Switch to using GEOMETRIC_EPSILON in getWinding() code.

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This commit is contained in:
Jürg Lehni 2015-09-12 22:20:31 +02:00
parent ef45a5f62c
commit 8047f90ccf
1 changed files with 6 additions and 6 deletions
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12
src/path/PathItem.Boolean.js
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@ -306,8 +306,8 @@ PathItem.inject(new function() {
* with respect to a given set of monotone curves. * with respect to a given set of monotone curves.
*/ */
function getWinding(point, curves, horizontal, testContains) { function getWinding(point, curves, horizontal, testContains) {
var tolerance = /*#=*/Numerical.TOLERANCE, var epsilon = /*#=*/Numerical.GEOMETRIC_EPSILON,
tMin = tolerance, tMin = /*#=*/Numerical.TOLERANCE,
tMax = 1 - tMin, tMax = 1 - tMin,
px = point.x, px = point.x,
py = point.y, py = point.y,
@ -321,8 +321,8 @@ PathItem.inject(new function() {
if (horizontal) { if (horizontal) {
var yTop = -Infinity, var yTop = -Infinity,
yBottom = Infinity, yBottom = Infinity,
yBefore = py - tolerance, yBefore = py - epsilon,
yAfter = py + tolerance; yAfter = py + epsilon;
// Find the closest top and bottom intercepts for the same vertical // Find the closest top and bottom intercepts for the same vertical
// line. // line.
for (var i = 0, l = curves.length; i < l; i++) { for (var i = 0, l = curves.length; i < l; i++) {
@ -348,8 +348,8 @@ PathItem.inject(new function() {
if (yBottom < Infinity) if (yBottom < Infinity)
windRight = getWinding(new Point(px, yBottom), curves); windRight = getWinding(new Point(px, yBottom), curves);
} else { } else {
var xBefore = px - tolerance, var xBefore = px - epsilon,
xAfter = px + tolerance; xAfter = px + epsilon;
// Find the winding number for right side of the curve, inclusive of // Find the winding number for right side of the curve, inclusive of
// the curve itself, while tracing along its +-x direction. // the curve itself, while tracing along its +-x direction.
var startCounted = false, var startCounted = false,