From f86faba3a96a5b682863f3c55666949b38fb5517 Mon Sep 17 00:00:00 2001
From: be5invis <belleve@typeof.net>
Date: Tue, 13 Oct 2015 19:41:22 +0800
Subject: [PATCH] Removed toquad.js

---
 support/toquad.js | 95 -----------------------------------------------
 1 file changed, 95 deletions(-)
 delete mode 100644 support/toquad.js

diff --git a/support/toquad.js b/support/toquad.js
deleted file mode 100644
index 4cfa378..0000000
--- a/support/toquad.js
+++ /dev/null
@@ -1,95 +0,0 @@
-function toQuad(p1, c1, c2, p2) {
-    // Quad control point is (3*c2 - p2 + 3*c1 - p1)/4
-    var x = (3 * c2.x - p2.x + 3 * c1.x - p1.x) / 4;
-    var y = (3 * c2.y - p2.y + 3 * c1.y - p1.y) / 4;
-    if(Math.abs(c1.x - p1.x) < 0.25) x = p1.x;
-    if(Math.abs(c2.x - p2.x) < 0.25) x = p2.x;
-    if(Math.abs(c1.y - p1.y) < 0.25) y = p1.y;
-    if(Math.abs(c2.y - p2.y) < 0.25) y = p2.y;
-    return [
-        p1,
-        {
-            x: x,
-            y: y
-
-        },
-        p2
-    ];
-}
-
-
-/**
-    * 三次贝塞尔转二次贝塞尔
-    *
-    * @param {Object} p1 开始点
-    * @param {Object} c1 控制点1
-    * @param {Object} c2 控制点2
-    * @param {Object} p2 结束点
-    * @return {Array} 二次贝塞尔控制点
-    */
-function bezierCubic2Q2(p1, c1, c2, p2, level) {
-    level = level || 0;
-
-    // 判断极端情况，控制点和起止点一样
-    if (p1.x === c1.x && p1.y === c1.y && c2.x === p2.x && c2.y === p2.y) {
-        return [
-            [
-                p1,
-                {
-                    x: (p1.x + p2.x) / 2,
-                    y: (p1.y + p2.y) / 2
-                },
-                p2
-            ]
-        ];
-    }
-
-
-    var mx = p2.x - 3 * c2.x + 3 * c1.x - p1.x;
-    var my = p2.y - 3 * c2.y + 3 * c1.y - p1.y;
-
-    // control points near
-    if (mx * mx + my * my <= 4 || level > 5) {
-        return [
-            toQuad(p1, c1, c2, p2)
-        ];
-    }
-
-    // Split to 2 qubic beziers by midpoints
-    // (p2 + 3*c2 + 3*c1 + p1)/8
-    var mp = {
-        x: (p2.x + 3 * c2.x + 3 * c1.x + p1.x) / 8,
-        y: (p2.y + 3 * c2.y + 3 * c1.y + p1.y) / 8
-
-    };
-
-    return bezierCubic2Q2(
-            p1,
-            {
-                x: (p1.x + c1.x) / 2,
-                y: (p1.y + c1.y) / 2
-
-            },
-            {
-                x: (p1.x + 2 * c1.x + c2.x) / 4,
-                y: (p1.y + 2 * c1.y + c2.y) / 4
-            },
-            mp,
-            level + 1
-        ).concat(bezierCubic2Q2(
-            mp,
-            {
-                x: (p2.x + c1.x + 2 * c2.x) / 4,
-                y: (p2.y + c1.y + 2 * c2.y) / 4
-
-            },
-            {
-                x: (p2.x + c2.x) / 2,
-                y: (p2.y + c2.y) / 2
-            },
-            p2,
-            level + 1
-        ))
-}
-
-module.exports = bezierCubic2Q2;
\ No newline at end of file