add fit curve

demo/fitCurve.html

@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>三次bezier曲线拟合</title>
+    <script src="../dep/esl.js"></script>
+    <script src="../dep/jquery.min.js"></script>
+    <style>
+        body {
+            margin: 0;
+            padding: 0;
+        }
+        .point {
+            position: absolute;
+            width: 9px;
+            height: 9px;
+            margin-left: -5px;
+            margin-top: -5px;
+            border: 1px solid red;
+        }
+
+        #start-point {
+            border-color: green;
+        }
+
+        #end-point {
+            border-color: black;
+        }
+
+        #control-point {
+            border-color: blue;
+        }
+
+    </style>
+</head>
+<body>
+    <div id="start-point" class="point" data-index="0"></div>
+    <div id="end-point" class="point" data-index="1"></div>
+    <div id="control-point" class="point" data-index="2"></div>
+    <div class="point" data-index="3"></div>
+    <canvas id="canvas" width="800" height="800"></canvas>
+<script>
+    require.config({
+        baseUrl: '../src',
+        paths: {
+            demo: '../demo/js',
+        }
+    });
+    define('jquery', $);
+</script>
+
+<script>require(['demo/fitCurve'])</script>
+</body>
+</html>