diff --git a/demos/greatCircle.html b/demos/great_circle.html
similarity index 100%
rename from demos/greatCircle.html
rename to demos/great_circle.html
diff --git a/demos/greatcircle.html b/demos/greatcircle.html
deleted file mode 100644
index ba61152db6..0000000000
--- a/demos/greatcircle.html
+++ /dev/null
@@ -1,60 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-  <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <meta http-equiv="X-UA-Compatible" content="ie=edge">
-  <meta name="geometry" content="diagram">
-  <link rel="stylesheet" href="./assets/common.css">
-  <title>hexagon demo</title>
-  <style>
-	#map { position:absolute; top:0; bottom:0; width:100%; }
-  </style>
-</head>
-
-<body>
-<div id="map"></div>
-<script src="https://webapi.amap.com/maps?v=1.4.8&key=15cd8a57710d40c9b7c0e3cc120f1200&plugin=Map3D"></script>
-<script src='https://npmcdn.com/@turf/turf/turf.min.js'></script>
-<script src="./assets/jquery-3.2.1.min.js"></script>
-<script src="./assets/dat.gui.min.js"></script>
-<script src="../build/L7.js"></script>
-<script>
-
-const color1 = [ 'rgba(37, 140, 249, 0.8)', 'rgba(14, 241, 242, 0.8)', 'rgba(255, 255, 255, 0.8)' ];
-const scene = new L7.Scene({
-  id: 'map',
-  mapStyle: 'dark', // 样式URL
-  center: [ 116.2825, 39.9 ],
-  pitch: 0,
-  zoom: 3
-});
-scene.on('loaded', () => {
-  $.get('https://gw.alipayobjects.com/os/rmsportal/UEXQMifxtkQlYfChpPwT.txt', data => {
-    
-    scene.LineLayer({
-      zIndex: 2
-    })
-     .source(data, { 
-       parser:{
-          type: 'csv',
-          x: 'lng1',
-          y: 'lat1',
-          x1: 'lng2',
-          y1: 'lat2'
-       }
-      
-     })
-    .shape('greatCircle')
-    .size(0.8)
-    .color('rgb(13,64,140)') 
-    .style({
-      opacity:0.6,
-    })
-    .render();
-  });
-});
-</script>
-</body>
-</html>
-
