From 688f580b951a4f601d40f79e4c37416eed14545b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Lehni?= <juerg@scratchdisk.com>
Date: Fri, 9 Oct 2015 10:34:46 +0200
Subject: [PATCH] Switch to new Curve.getParameterOf()

Simpler code, but improved precision means more glitches to analyze.
---
 src/path/Curve.js | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/path/Curve.js b/src/path/Curve.js
index 33bc7a68..026e6ce0 100644
--- a/src/path/Curve.js
+++ b/src/path/Curve.js
@@ -615,7 +615,7 @@ statics: {
         return Numerical.solveCubic(a, b, c, p1 - val, roots, min, max);
     },
 
-    getParameterOf: function(v, point) {
+    getParameterOf_: function(v, point) {
         // Handle beginnings and end separately, as they are not detected
         // sometimes.
         var x = point.x,
@@ -666,6 +666,21 @@ statics: {
         return null;
     },
 
+    getParameterOf: function(v, point) {
+        var coords = [point.x, point.y],
+            roots = [];
+        for (var c = 0; c < 2; c++) {
+            var count = Curve.solveCubic(v, c, coords[c], roots, 0, 1);
+            for (var i = 0; i < count; i++) {
+                var t = roots[i],
+                    pt = Curve.getPoint(v, t);
+                if (point.isClose(pt, /*#=*/Numerical.GEOMETRIC_EPSILON))
+                    return t;
+            }
+        }
+        return null;
+    },
+
     // TODO: Find better name
     getPart: function(v, from, to) {
         var flip = from > to;