commit c7f6e8179c35172f473cabca933b644cd7450410
author sushuang <sushuang0322@gmail.com> Thu Aug 26 12:31:26 2021 +0800
committer sushuang <sushuang0322@gmail.com> Thu Aug 26 12:31:26 2021 +0800
tree 5af7782c0f38de53bc7404fe5317be6216bebaa8
parent 0c61acbef8fa8f2e1263d009f94edcb548be3ffc
parent 0ae073ffde0e0caf4cfbff4ca8e65159d22275b1

Merge branch 'dev' into gh-pages

.gitignore

diff --git a/.gitignore b/.gitignore
index 8b72324..4c2dd93 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,4 +15,5 @@
 /public/data/option
 /public/data-gl/option
 
-tmp
\ No newline at end of file
+tmp
+.webm
\ No newline at end of file

README.md

diff --git a/README.md b/README.md
index 52891ef..b56d153 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,19 @@
 
 describes the meta info of this example.
 
+If you want to record a video to show the animation when genering screenshot. Use `videoStart` and `videoEnd`:
+
+```js
+/*
+title: Bar Race
+titleCN: 动态排序柱状图
+category: bar
+difficulty: 5
+videoStart: 1000
+videoEnd: 6000
+*/
+```
+
 
 ## Some built-in features available in examples
 

package-lock.json

diff --git a/package-lock.json b/package-lock.json
index e6b08a4..d6d682b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1672,7 +1672,7 @@
     },
     "array-find-index": {
       "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/array-find-index/-/array-find-index-1.0.2.tgz",
+      "resolved": "https://registry.npm.taobao.org/array-find-index/download/array-find-index-1.0.2.tgz",
       "integrity": "sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=",
       "dev": true
     },
@@ -2128,7 +2128,7 @@
     },
     "camelcase-keys": {
       "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/camelcase-keys/-/camelcase-keys-2.1.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/camelcase-keys/download/camelcase-keys-2.1.0.tgz",
       "integrity": "sha1-MIvur/3ygRkFHvodkyITyRuPkuc=",
       "dev": true,
       "requires": {
@@ -2138,7 +2138,7 @@
       "dependencies": {
         "camelcase": {
           "version": "2.1.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-2.1.1.tgz",
+          "resolved": "https://registry.npm.taobao.org/camelcase/download/camelcase-2.1.1.tgz",
           "integrity": "sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8=",
           "dev": true
         }
@@ -2569,7 +2569,7 @@
     },
     "console-control-strings": {
       "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/console-control-strings/download/console-control-strings-1.1.0.tgz",
       "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
       "dev": true
     },
@@ -2626,7 +2626,7 @@
     },
     "core-util-is": {
       "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
+      "resolved": "https://registry.npm.taobao.org/core-util-is/download/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
       "dev": true
     },
@@ -2764,7 +2764,7 @@
     },
     "currently-unhandled": {
       "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/currently-unhandled/-/currently-unhandled-0.4.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/currently-unhandled/download/currently-unhandled-0.4.1.tgz",
       "integrity": "sha1-mI3zP+qxke95mmE2nddsF635V+o=",
       "dev": true,
       "requires": {
@@ -2946,7 +2946,7 @@
     },
     "delegates": {
       "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/delegates/download/delegates-1.0.0.tgz",
       "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
       "dev": true
     },
@@ -3203,12 +3203,6 @@
         "is-arrayish": "^0.2.1"
       }
     },
-    "esbuild": {
-      "version": "0.8.29",
-      "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.8.29.tgz",
-      "integrity": "sha512-UDsEoeXuctVgG2hEts1Hwq2jYDGqV7nksEHEZaiCy2v+lXF5ButX4ErPAJAFi5ZNKKW+6Pom93pArV7hki6HnQ==",
-      "dev": true
-    },
     "escalade": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.0.2.tgz",
@@ -3217,7 +3211,7 @@
     },
     "escape-string-regexp": {
       "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+      "resolved": "https://registry.npm.taobao.org/escape-string-regexp/download/escape-string-regexp-1.0.5.tgz",
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
       "dev": true
     },
@@ -3511,7 +3505,7 @@
     },
     "gauge": {
       "version": "2.7.4",
-      "resolved": "https://registry.npmjs.org/gauge/-/gauge-2.7.4.tgz",
+      "resolved": "https://registry.npm.taobao.org/gauge/download/gauge-2.7.4.tgz",
       "integrity": "sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=",
       "dev": true,
       "requires": {
@@ -3548,7 +3542,7 @@
     },
     "get-stdin": {
       "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/get-stdin/-/get-stdin-4.0.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/get-stdin/download/get-stdin-4.0.1.tgz",
       "integrity": "sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=",
       "dev": true
     },
@@ -3685,7 +3679,7 @@
     },
     "has-ansi": {
       "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/has-ansi/download/has-ansi-2.0.0.tgz",
       "integrity": "sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=",
       "dev": true,
       "requires": {
@@ -3721,7 +3715,7 @@
     },
     "has-unicode": {
       "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/has-unicode/-/has-unicode-2.0.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/has-unicode/download/has-unicode-2.0.1.tgz",
       "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
       "dev": true
     },
@@ -3950,7 +3944,7 @@
     },
     "indent-string": {
       "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/indent-string/-/indent-string-2.1.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/indent-string/download/indent-string-2.1.0.tgz",
       "integrity": "sha1-ji1INIdCEhtKghi3oTfppSBJ3IA=",
       "dev": true,
       "requires": {
@@ -4040,7 +4034,7 @@
     },
     "is-finite": {
       "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/is-finite/-/is-finite-1.0.2.tgz",
+      "resolved": "https://registry.npm.taobao.org/is-finite/download/is-finite-1.0.2.tgz",
       "integrity": "sha1-zGZ3aVYCvlUO8R6LSqYwU0K20Ko=",
       "dev": true,
       "requires": {
@@ -4115,7 +4109,7 @@
     },
     "isexe": {
       "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/isexe/download/isexe-2.0.0.tgz",
       "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
       "dev": true
     },
@@ -4324,7 +4318,7 @@
     },
     "loud-rejection": {
       "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/loud-rejection/-/loud-rejection-1.6.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/loud-rejection/download/loud-rejection-1.6.0.tgz",
       "integrity": "sha1-W0b4AUft7leIcPCG0Eghz5mOVR8=",
       "dev": true,
       "requires": {
@@ -4397,7 +4391,7 @@
     },
     "map-obj": {
       "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/map-obj/-/map-obj-1.0.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/map-obj/download/map-obj-1.0.1.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fmap-obj%2Fdownload%2Fmap-obj-1.0.1.tgz",
       "integrity": "sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=",
       "dev": true
     },
@@ -4409,7 +4403,7 @@
     },
     "meow": {
       "version": "3.7.0",
-      "resolved": "https://registry.npmjs.org/meow/-/meow-3.7.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/meow/download/meow-3.7.0.tgz",
       "integrity": "sha1-cstmi0JSKCkKu/qFaJJYcwioAfs=",
       "dev": true,
       "requires": {
@@ -4563,7 +4557,7 @@
     },
     "minimist": {
       "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/minimist/download/minimist-1.2.0.tgz",
       "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
       "dev": true
     },
@@ -4755,7 +4749,7 @@
     },
     "object-assign": {
       "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/object-assign/download/object-assign-4.1.1.tgz",
       "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
     },
     "object-keys": {
@@ -5362,7 +5356,7 @@
     },
     "pseudomap": {
       "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
+      "resolved": "https://registry.npm.taobao.org/pseudomap/download/pseudomap-1.0.2.tgz",
       "integrity": "sha1-8FKijacOYYkX7wqKw0wa5aaChrM=",
       "dev": true
     },
@@ -5467,7 +5461,7 @@
     },
     "redent": {
       "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/redent/-/redent-1.0.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/redent/download/redent-1.0.0.tgz",
       "integrity": "sha1-z5Fqsf1fHxbfsggi3W7H9zDCr94=",
       "dev": true,
       "requires": {
@@ -5550,7 +5544,7 @@
     },
     "repeating": {
       "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/repeating/-/repeating-2.0.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/repeating/download/repeating-2.0.1.tgz",
       "integrity": "sha1-UhTFOpJtNVJwdSf7q0FdvAjQbdo=",
       "dev": true,
       "requires": {
@@ -5804,9 +5798,37 @@
       "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
       "dev": true
     },
+    "shelljs": {
+      "version": "0.8.4",
+      "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.4.tgz",
+      "integrity": "sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==",
+      "dev": true,
+      "requires": {
+        "glob": "^7.0.0",
+        "interpret": "^1.0.0",
+        "rechoir": "^0.6.2"
+      },
+      "dependencies": {
+        "interpret": {
+          "version": "1.4.0",
+          "resolved": "https://registry.npmjs.org/interpret/-/interpret-1.4.0.tgz",
+          "integrity": "sha512-agE4QfB2Lkp9uICn7BAqoscw4SZP9kTE2hxiFI3jBPmXJfdqiahTbUuKGsMoN2GtqL9AxhYioAcVvgsb1HvRbA==",
+          "dev": true
+        },
+        "rechoir": {
+          "version": "0.6.2",
+          "resolved": "https://registry.npmjs.org/rechoir/-/rechoir-0.6.2.tgz",
+          "integrity": "sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=",
+          "dev": true,
+          "requires": {
+            "resolve": "^1.1.6"
+          }
+        }
+      }
+    },
     "signal-exit": {
       "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
+      "resolved": "https://registry.npm.taobao.org/signal-exit/download/signal-exit-3.0.2.tgz",
       "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=",
       "dev": true
     },
@@ -6081,7 +6103,7 @@
     },
     "strip-indent": {
       "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/strip-indent/-/strip-indent-1.0.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/strip-indent/download/strip-indent-1.0.1.tgz",
       "integrity": "sha1-DHlipq3vp7vUrDZkYKY4VSrhoKI=",
       "dev": true,
       "requires": {
@@ -6433,7 +6455,7 @@
     },
     "trim-newlines": {
       "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-1.0.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/trim-newlines/download/trim-newlines-1.0.0.tgz",
       "integrity": "sha1-WIeWa7WCpFA6QetST301ARgVphM=",
       "dev": true
     },
@@ -6468,7 +6490,7 @@
     },
     "tunnel-agent": {
       "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
+      "resolved": "https://registry.npm.taobao.org/tunnel-agent/download/tunnel-agent-0.6.0.tgz",
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
       "dev": true,
       "requires": {
@@ -6557,7 +6579,7 @@
     },
     "util-deprecate": {
       "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "resolved": "https://registry.npm.taobao.org/util-deprecate/download/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
       "dev": true
     },
@@ -7052,7 +7074,7 @@
     },
     "yallist": {
       "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "resolved": "https://registry.npm.taobao.org/yallist/download/yallist-2.1.2.tgz",
       "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
       "dev": true
     },

public/data-gl/animating-contour-on-globe.js

diff --git a/public/data-gl/animating-contour-on-globe.js b/public/data-gl/animating-contour-on-globe.js
index c6cbfed..aa2202f 100644
--- a/public/data-gl/animating-contour-on-globe.js
+++ b/public/data-gl/animating-contour-on-globe.js
@@ -2,6 +2,8 @@
 title: Animating Contour on Globe
 category: globe
 titleCN: Animating Contour on Globe
+videoStart: 2000
+videoEnd: 6000
 */
 
 

public/data-gl/flowGL-noise.js

diff --git a/public/data-gl/flowGL-noise.js b/public/data-gl/flowGL-noise.js
index 5c9cc68..2d57e64 100644
--- a/public/data-gl/flowGL-noise.js
+++ b/public/data-gl/flowGL-noise.js
@@ -3,6 +3,8 @@
 category: flowGL
 titleCN: 直角坐标系上的向量场
 theme: dark
+videoStart: 2000
+videoEnd: 10000
 */
 
 $.getScript('https://cdn.jsdelivr.net/npm/simplex-noise@2.4.0/simplex-noise.js').done(function () {

public/data-gl/global-wind-visualization-2.js

diff --git a/public/data-gl/global-wind-visualization-2.js b/public/data-gl/global-wind-visualization-2.js
index 13c23a3..89e2e3a 100644
--- a/public/data-gl/global-wind-visualization-2.js
+++ b/public/data-gl/global-wind-visualization-2.js
@@ -3,6 +3,8 @@
 category: flowGL
 tags: bmap
 titleCN: Global Wind Visualization 2
+videoStart: 2000
+videoEnd: 10000
 */
 
 $.getJSON(ROOT_PATH + '/data-gl/asset/data/gfs.json', function(windData) {
@@ -34,6 +36,7 @@
             }
         }
         myChart.setOption({
+            backgroundColor: '#001122',
             visualMap: {
                 left: 'right',
                 min: minMag,

public/data-gl/global-wind-visualization.js

diff --git a/public/data-gl/global-wind-visualization.js b/public/data-gl/global-wind-visualization.js
index ef7b71e..9494961 100644
--- a/public/data-gl/global-wind-visualization.js
+++ b/public/data-gl/global-wind-visualization.js
@@ -3,6 +3,8 @@
 category: flowGL
 tags: bmap
 titleCN: Global wind visualization
+videoStart: 2000
+videoEnd: 10000
 */
 
 $.getJSON(ROOT_PATH + '/data-gl/asset/data/winds.json', function (windData) {
@@ -32,6 +34,7 @@
         }
     }
     myChart.setOption(option = {
+        backgroundColor: '#001122',
         visualMap: {
             left: 'right',
             min: minMag,

public/data-gl/globe-echarts-gl-hello-world.js

diff --git a/public/data-gl/globe-echarts-gl-hello-world.js b/public/data-gl/globe-echarts-gl-hello-world.js
index 7d42cfa..6ef4cb5 100644
--- a/public/data-gl/globe-echarts-gl-hello-world.js
+++ b/public/data-gl/globe-echarts-gl-hello-world.js
@@ -3,6 +3,8 @@
 category: globe
 titleCN: ECharts-GL Hello World
 scripts: 'https://cdn.jsdelivr.net/gh/ecomfe/echarts-gl/dist/echarts-gl.min.js'
+videoStart: 2000
+videoEnd: 6000
 */
 
 option = {

public/data-gl/globe-layers.js

diff --git a/public/data-gl/globe-layers.js b/public/data-gl/globe-layers.js
index 6ec140d..ef3d0e5 100644
--- a/public/data-gl/globe-layers.js
+++ b/public/data-gl/globe-layers.js
@@ -2,6 +2,8 @@
 title: Globe Layers
 category: globe
 titleCN: Globe Layers
+videoStart: 2000
+videoEnd: 6000
 */
 
 option = {

public/data-gl/graphgl-gpu-layout.js

diff --git a/public/data-gl/graphgl-gpu-layout.js b/public/data-gl/graphgl-gpu-layout.js
index fdb5390..e27ebbf 100644
--- a/public/data-gl/graphgl-gpu-layout.js
+++ b/public/data-gl/graphgl-gpu-layout.js
@@ -3,7 +3,8 @@
 category: graphGL
 theme: dark
 titleCN: GraphGL GPU Layout
-shotDelay: 5000
+videoStart: 0
+videoEnd: 10000
 shotWidth: 1280
 */
 

public/data-gl/lines3d-flights-gl.js

diff --git a/public/data-gl/lines3d-flights-gl.js b/public/data-gl/lines3d-flights-gl.js
index f9a419f..95644fb 100644
--- a/public/data-gl/lines3d-flights-gl.js
+++ b/public/data-gl/lines3d-flights-gl.js
@@ -2,6 +2,8 @@
 title: Flights GL
 category: lines3D
 titleCN: Flights GL
+videoStart: 2000
+videoEnd: 8000
 */
 
 var uploadedDataURL = ROOT_PATH + "/data-gl/asset/data/flights.json";

public/data-gl/thumb-dark/flowGL-noise.webp

diff --git a/public/data-gl/thumb-dark/flowGL-noise.webp b/public/data-gl/thumb-dark/flowGL-noise.webp
index 1c01dac..8cdbebb 100644
--- a/public/data-gl/thumb-dark/flowGL-noise.webp
+++ b/public/data-gl/thumb-dark/flowGL-noise.webp
Binary files differ

public/data-gl/thumb-dark/global-wind-visualization-2.webp

diff --git a/public/data-gl/thumb-dark/global-wind-visualization-2.webp b/public/data-gl/thumb-dark/global-wind-visualization-2.webp
index c10d48e..a032e9a 100644
--- a/public/data-gl/thumb-dark/global-wind-visualization-2.webp
+++ b/public/data-gl/thumb-dark/global-wind-visualization-2.webp
Binary files differ

public/data-gl/thumb-dark/global-wind-visualization.webp

diff --git a/public/data-gl/thumb-dark/global-wind-visualization.webp b/public/data-gl/thumb-dark/global-wind-visualization.webp
index aa3787f..6bcbf59 100644
--- a/public/data-gl/thumb-dark/global-wind-visualization.webp
+++ b/public/data-gl/thumb-dark/global-wind-visualization.webp
Binary files differ

public/data-gl/thumb-dark/graphgl-gpu-layout.webp

diff --git a/public/data-gl/thumb-dark/graphgl-gpu-layout.webp b/public/data-gl/thumb-dark/graphgl-gpu-layout.webp
index c5ac8b5..395fce4 100644
--- a/public/data-gl/thumb-dark/graphgl-gpu-layout.webp
+++ b/public/data-gl/thumb-dark/graphgl-gpu-layout.webp
Binary files differ

public/data-gl/thumb-dark/lines3d-flights-gl.webp

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similarity index 100%
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public/data/archive/custom-aggregate-scatter-cluster.js

diff --git a/public/data/custom-aggregate-scatter-cluster.js b/public/data/archive/custom-aggregate-scatter-cluster.js
similarity index 100%
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public/data/archive/custom-aggregate-scatter-pie.js

diff --git a/public/data/custom-aggregate-scatter-pie.js b/public/data/archive/custom-aggregate-scatter-pie.js
similarity index 100%
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public/data/archive/custom-one-to-one-morph.js

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similarity index 100%
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rename to public/data/archive/custom-one-to-one-morph.js

public/data/archive/custom-story-transition.js

diff --git a/public/data/custom-story-transition.js b/public/data/archive/custom-story-transition.js
similarity index 100%
rename from public/data/custom-story-transition.js
rename to public/data/archive/custom-story-transition.js

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new file mode 100644
index 0000000..30931c3
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+              "size": 3492,
+              "value": 3492
+            }
+          ],
+          "value": 3492
+        },
+        {
+          "name": "dom",
+          "size": 22220,
+          "children": [
+            {
+              "name": "dom/HandlerProxy.ts",
+              "size": 22220,
+              "value": 22220
+            }
+          ],
+          "value": 22220
+        },
+        {
+          "name": "export.ts",
+          "size": 3317,
+          "value": 3317
+        },
+        {
+          "name": "graphic",
+          "size": 169365,
+          "children": [
+            {
+              "name": "graphic/CompoundPath.ts",
+              "size": 1606,
+              "value": 1606
+            },
+            {
+              "name": "graphic/Displayable.ts",
+              "size": 19541,
+              "value": 19541
+            },
+            {
+              "name": "graphic/Gradient.ts",
+              "size": 754,
+              "value": 754
+            },
+            {
+              "name": "graphic/Group.ts",
+              "size": 7645,
+              "value": 7645
+            },
+            {
+              "name": "graphic/Image.ts",
+              "size": 3227,
+              "value": 3227
+            },
+            {
+              "name": "graphic/IncrementalDisplayable.ts",
+              "size": 4426,
+              "value": 4426
+            },
+            {
+              "name": "graphic/LinearGradient.ts",
+              "size": 1096,
+              "value": 1096
+            },
+            {
+              "name": "graphic/Path.ts",
+              "size": 21284,
+              "value": 21284
+            },
+            {
+              "name": "graphic/Pattern.ts",
+              "size": 1721,
+              "value": 1721
+            },
+            {
+              "name": "graphic/RadialGradient.ts",
+              "size": 1020,
+              "value": 1020
+            },
+            {
+              "name": "graphic/TSpan.ts",
+              "size": 2844,
+              "value": 2844
+            },
+            {
+              "name": "graphic/Text.ts",
+              "size": 33862,
+              "value": 33862
+            },
+            {
+              "name": "graphic/constants.ts",
+              "size": 168,
+              "value": 168
+            },
+            {
+              "name": "graphic/helper",
+              "size": 47692,
+              "children": [
+                {
+                  "name": "graphic/helper/dashStyle.ts",
+                  "size": 503,
+                  "value": 503
+                },
+                {
+                  "name": "graphic/helper/image.ts",
+                  "size": 2989,
+                  "value": 2989
+                },
+                {
+                  "name": "graphic/helper/parseText.ts",
+                  "size": 23755,
+                  "value": 23755
+                },
+                {
+                  "name": "graphic/helper/poly.ts",
+                  "size": 1510,
+                  "value": 1510
+                },
+                {
+                  "name": "graphic/helper/roundRect.ts",
+                  "size": 2138,
+                  "value": 2138
+                },
+                {
+                  "name": "graphic/helper/roundSector.ts",
+                  "size": 8730,
+                  "value": 8730
+                },
+                {
+                  "name": "graphic/helper/smoothBezier.ts",
+                  "size": 2607,
+                  "value": 2607
+                },
+                {
+                  "name": "graphic/helper/smoothSpline.ts",
+                  "size": 1599,
+                  "value": 1599
+                },
+                {
+                  "name": "graphic/helper/subPixelOptimize.ts",
+                  "size": 3861,
+                  "value": 3861
+                }
+              ],
+              "value": 47692
+            },
+            {
+              "name": "graphic/shape",
+              "size": 22479,
+              "children": [
+                {
+                  "name": "graphic/shape/Arc.ts",
+                  "size": 1122,
+                  "value": 1122
+                },
+                {
+                  "name": "graphic/shape/BezierCurve.ts",
+                  "size": 3363,
+                  "value": 3363
+                },
+                {
+                  "name": "graphic/shape/Circle.ts",
+                  "size": 1081,
+                  "value": 1081
+                },
+                {
+                  "name": "graphic/shape/Droplet.ts",
+                  "size": 1070,
+                  "value": 1070
+                },
+                {
+                  "name": "graphic/shape/Ellipse.ts",
+                  "size": 1222,
+                  "value": 1222
+                },
+                {
+                  "name": "graphic/shape/Heart.ts",
+                  "size": 950,
+                  "value": 950
+                },
+                {
+                  "name": "graphic/shape/Isogon.ts",
+                  "size": 1096,
+                  "value": 1096
+                },
+                {
+                  "name": "graphic/shape/Line.ts",
+                  "size": 1985,
+                  "value": 1985
+                },
+                {
+                  "name": "graphic/shape/Polygon.ts",
+                  "size": 811,
+                  "value": 811
+                },
+                {
+                  "name": "graphic/shape/Polyline.ts",
+                  "size": 1023,
+                  "value": 1023
+                },
+                {
+                  "name": "graphic/shape/Rect.ts",
+                  "size": 1927,
+                  "value": 1927
+                },
+                {
+                  "name": "graphic/shape/Ring.ts",
+                  "size": 781,
+                  "value": 781
+                },
+                {
+                  "name": "graphic/shape/Rose.ts",
+                  "size": 1484,
+                  "value": 1484
+                },
+                {
+                  "name": "graphic/shape/Sector.ts",
+                  "size": 889,
+                  "value": 889
+                },
+                {
+                  "name": "graphic/shape/Star.ts",
+                  "size": 1698,
+                  "value": 1698
+                },
+                {
+                  "name": "graphic/shape/Trochoid.ts",
+                  "size": 1977,
+                  "value": 1977
+                }
+              ],
+              "value": 22479
+            }
+          ],
+          "value": 169365
+        },
+        {
+          "name": "mixin",
+          "size": 3505,
+          "children": [
+            {
+              "name": "mixin/Draggable.ts",
+              "size": 3505,
+              "value": 3505
+            }
+          ],
+          "value": 3505
+        },
+        {
+          "name": "svg",
+          "size": 63006,
+          "children": [
+            {
+              "name": "svg/Painter.ts",
+              "size": 15932,
+              "value": 15932
+            },
+            {
+              "name": "svg/core.ts",
+              "size": 120,
+              "value": 120
+            },
+            {
+              "name": "svg/graphic.ts",
+              "size": 13503,
+              "value": 13503
+            },
+            {
+              "name": "svg/helper",
+              "size": 33341,
+              "children": [
+                {
+                  "name": "svg/helper/ClippathManager.ts",
+                  "size": 5600,
+                  "value": 5600
+                },
+                {
+                  "name": "svg/helper/Definable.ts",
+                  "size": 7152,
+                  "value": 7152
+                },
+                {
+                  "name": "svg/helper/GradientManager.ts",
+                  "size": 8044,
+                  "value": 8044
+                },
+                {
+                  "name": "svg/helper/PatternManager.ts",
+                  "size": 7269,
+                  "value": 7269
+                },
+                {
+                  "name": "svg/helper/ShadowManager.ts",
+                  "size": 5276,
+                  "value": 5276
+                }
+              ],
+              "value": 33341
+            },
+            {
+              "name": "svg/svg.ts",
+              "size": 110,
+              "value": 110
+            }
+          ],
+          "value": 63006
+        },
+        {
+          "name": "tool",
+          "size": 122091,
+          "children": [
+            {
+              "name": "tool/color.ts",
+              "size": 19085,
+              "value": 19085
+            },
+            {
+              "name": "tool/convertPath.ts",
+              "size": 8959,
+              "value": 8959
+            },
+            {
+              "name": "tool/dividePath.ts",
+              "size": 12704,
+              "value": 12704
+            },
+            {
+              "name": "tool/morphPath.ts",
+              "size": 28139,
+              "value": 28139
+            },
+            {
+              "name": "tool/parseSVG.ts",
+              "size": 33804,
+              "value": 33804
+            },
+            {
+              "name": "tool/parseXML.ts",
+              "size": 692,
+              "value": 692
+            },
+            {
+              "name": "tool/path.ts",
+              "size": 16023,
+              "value": 16023
+            },
+            {
+              "name": "tool/transformPath.ts",
+              "size": 2685,
+              "value": 2685
+            }
+          ],
+          "value": 122091
+        },
+        {
+          "name": "vml",
+          "size": 42681,
+          "children": [
+            {
+              "name": "vml/Painter.ts",
+              "size": 5103,
+              "value": 5103
+            },
+            {
+              "name": "vml/core.ts",
+              "size": 1242,
+              "value": 1242
+            },
+            {
+              "name": "vml/graphic.ts",
+              "size": 36190,
+              "value": 36190
+            },
+            {
+              "name": "vml/vml.ts",
+              "size": 146,
+              "value": 146
+            }
+          ],
+          "value": 42681
+        },
+        {
+          "name": "zrender.ts",
+          "size": 13102,
+          "value": 13102
+        }
+      ]
+    }
+  ],
+  "value": 3835461
+}
\ No newline at end of file

public/data/bar-drilldown.js

diff --git a/public/data/bar-drilldown.js b/public/data/bar-drilldown.js
new file mode 100644
index 0000000..8a95a53
--- /dev/null
+++ b/public/data/bar-drilldown.js
@@ -0,0 +1,99 @@
+/*
+title: Bar Chart Drilldown Animation.
+category: bar
+titleCN: 柱状图下钻动画
+difficulty: 5
+*/
+
+option = {
+    xAxis: {
+        data: ['Animals', 'Fruits', 'Cars']
+    },
+    yAxis: {},
+    dataGroupId: '',
+    animationDurationUpdate: 500,
+    series: {
+        type: 'bar',
+        id: 'sales',
+        data: [{
+            value: 5,
+            groupId: 'animals'
+        }, {
+            value: 2,
+            groupId: 'fruits'
+        }, {
+            value: 4,
+            groupId: 'cars'
+        }],
+        universalTransition: {
+            enabled: true,
+            divideShape: 'clone'
+        }
+    }
+};
+
+var drilldownData = [{
+    dataGroupId: 'animals',
+    data: [
+        ['Cats', 4],
+        ['Dogs', 2],
+        ['Cows', 1],
+        ['Sheep', 2],
+        ['Pigs', 1]
+    ]
+}, {
+    dataGroupId: 'fruits',
+    data: [
+        ['Apples', 4],
+        ['Oranges', 2]
+    ]
+}, {
+    dataGroupId: 'cars',
+    data: [
+        ['Toyota', 4],
+        ['Opel', 2],
+        ['Volkswagen', 2]
+    ]
+}];
+
+myChart.on('click', function (event) {
+    if (event.data) {
+        var subData = drilldownData.find(function (data) {
+            return data.dataGroupId === event.data.groupId;
+        });
+        if (!subData) {
+            return;
+        }
+        myChart.setOption({
+            xAxis: {
+                data: subData.data.map(function (item) {
+                    return item[0];
+                })
+            },
+            series: {
+                type: 'bar',
+                id: 'sales',
+                dataGroupId: subData.dataGroupId,
+                data: subData.data.map(function (item) {
+                    return item[1];
+                }),
+                universalTransition: {
+                    enabled: true,
+                    divideShape: 'clone'
+                }
+            },
+            graphic: [{
+                type: 'text',
+                left: 50,
+                top: 20,
+                style: {
+                    text: 'Back',
+                    fontSize: 18
+                },
+                onclick: function () {
+                    myChart.setOption(option);
+                }
+            }]
+        });
+    }
+});
\ No newline at end of file

public/data/bar-polar-label-radial.js

diff --git a/public/data/bar-polar-label-radial.js b/public/data/bar-polar-label-radial.js
new file mode 100644
index 0000000..f5c9054
--- /dev/null
+++ b/public/data/bar-polar-label-radial.js
@@ -0,0 +1,30 @@
+option = {
+    title: [{
+        text: 'Radial Polar Bar Label Position (middle)'
+    }],
+    polar: {
+        radius: [30, '80%']
+    },
+    radiusAxis: {
+        max: 4,
+        startAngle: 75
+    },
+    angleAxis: {
+        type: 'category',
+        data: ['a', 'b', 'c', 'd'],
+        startAngle: 75
+    },
+    tooltip: {},
+    series: {
+        type: 'bar',
+        data: [2, 1.2, 2.4, 3.6],
+        coordinateSystem: 'polar',
+        label: {
+            show: true,
+            position: 'middle', // or 'start', 'insideStart', 'end', 'insideEnd'
+            formatter: '{b}: {c}',
+        }
+    },
+    backgroundColor: '#fff',
+    animation: 0
+};

public/data/bar-polar-label-tangential.js

diff --git a/public/data/bar-polar-label-tangential.js b/public/data/bar-polar-label-tangential.js
new file mode 100644
index 0000000..db37d3b
--- /dev/null
+++ b/public/data/bar-polar-label-tangential.js
@@ -0,0 +1,30 @@
+option = {
+    title: [{
+        text: 'Radial Polar Bar Label Position (middle)'
+    }],
+    polar: {
+        radius: [30, '80%']
+    },
+    angleAxis: {
+        max: 4,
+        startAngle: 75
+    },
+    radiusAxis: {
+        type: 'category',
+        data: ['a', 'b', 'c', 'd'],
+        startAngle: 75
+    },
+    tooltip: {},
+    series: {
+        type: 'bar',
+        data: [2, 1.2, 2.4, 3.6],
+        coordinateSystem: 'polar',
+        label: {
+            show: true,
+            position: 'middle', // or 'start', 'insideStart', 'end', 'insideEnd'
+            formatter: '{b}: {c}',
+        }
+    },
+    backgroundColor: '#fff',
+    animation: 0
+};

public/data/bar-race-country.js

diff --git a/public/data/bar-race-country.js b/public/data/bar-race-country.js
index d748300..1dcc988 100644
--- a/public/data/bar-race-country.js
+++ b/public/data/bar-race-country.js
@@ -3,6 +3,8 @@
 titleCN: 动态排序柱状图 - 人均收入
 category: bar
 difficulty: 6
+videoStart: 1000
+videoEnd: 6000
 */
 
 

public/data/bar-race.js

diff --git a/public/data/bar-race.js b/public/data/bar-race.js
index 241a15f..21f76bf 100644
--- a/public/data/bar-race.js
+++ b/public/data/bar-race.js
@@ -3,6 +3,8 @@
 titleCN: 动态排序柱状图
 category: bar
 difficulty: 5
+videoStart: 1000
+videoEnd: 6000
 */
 
 var data = [];

public/data/custom-gantt-flight.js

diff --git a/public/data/custom-gantt-flight.js b/public/data/custom-gantt-flight.js
index 7f2c469..df7cbc3 100644
--- a/public/data/custom-gantt-flight.js
+++ b/public/data/custom-gantt-flight.js
@@ -1,6 +1,6 @@
 /*
 title: Gantt Chart of Airport Flights
-category: 'custom, dataZoom, drag'
+category: custom, dataZoom, drag
 titleCN: 机场航班甘特图
 difficulty: 4
 */

public/data/custom-hexbin.js

diff --git a/public/data/custom-hexbin.js b/public/data/custom-hexbin.js
index 0052228..b34933d 100644
--- a/public/data/custom-hexbin.js
+++ b/public/data/custom-hexbin.js
@@ -1,6 +1,6 @@
 /*
 title: Hexagonal Binning
-category: 'custom, map'
+category: custom, map
 titleCN: 六边形分箱图（自定义系列）
 difficulty: 6
 */

public/data/gauge-clock.js

diff --git a/public/data/gauge-clock.js b/public/data/gauge-clock.js
index f7ba17c..d1a25fd 100644
--- a/public/data/gauge-clock.js
+++ b/public/data/gauge-clock.js
@@ -1,9 +1,11 @@
 /*
-title: Clock Gauge
+title: Clock
 titleCN: 时钟仪表盘
 category: gauge
 shotWidth: 1000
 difficulty: 7
+videoStart: 2000
+videoEnd: 8000
 */
 
 option = {

public/data/gauge-ring.js

diff --git a/public/data/gauge-ring.js b/public/data/gauge-ring.js
index 5c88cd8..fde38b8 100644
--- a/public/data/gauge-ring.js
+++ b/public/data/gauge-ring.js
@@ -3,6 +3,8 @@
 titleCN: 得分环
 category: gauge
 difficulty: 5
+videoStart: 1000
+videoEnd: 8000
 */
 
 option = {
@@ -48,6 +50,7 @@
                 offsetCenter: ['0%', '-30%']
             },
             detail: {
+                valueAnimation: true,
                 offsetCenter: ['0%', '-20%']
             }
         },
@@ -58,6 +61,7 @@
                 offsetCenter: ['0%', '0%']
             },
             detail: {
+                valueAnimation: true,
                 offsetCenter: ['0%', '10%']
             }
         },
@@ -68,6 +72,7 @@
                 offsetCenter: ['0%', '30%']
             },
             detail: {
+                valueAnimation: true,
                 offsetCenter: ['0%', '40%']
             }
         }

public/data/gauge-simple.js

diff --git a/public/data/gauge-simple.js b/public/data/gauge-simple.js
index 0921e43..f438cd1 100644
--- a/public/data/gauge-simple.js
+++ b/public/data/gauge-simple.js
@@ -3,6 +3,8 @@
 titleCN: 带标签数字动画的基础仪表盘
 category: gauge
 difficulty: 1
+videoStart: 0
+videoEnd: 1000
 */
 
 option = {

public/data/gauge-temperature.js

diff --git a/public/data/gauge-temperature.js b/public/data/gauge-temperature.js
index ac8f74c..58f199c 100644
--- a/public/data/gauge-temperature.js
+++ b/public/data/gauge-temperature.js
@@ -3,6 +3,8 @@
 titleCN: 气温仪表盘
 category: gauge
 difficulty: 4
+videoStart: 2000
+videoEnd: 5000
 */
 
 option = {

public/data/line-race.js

diff --git a/public/data/line-race.js b/public/data/line-race.js
index 196ad4f..3125111 100644
--- a/public/data/line-race.js
+++ b/public/data/line-race.js
@@ -3,6 +3,8 @@
 category: line
 titleCN: 动态排序折线图
 difficulty: 5
+videoStart: 3000
+videoEnd: 8000
 */
 
 $.get(ROOT_PATH + '/data/asset/data/life-expectancy-table.json', function (_rawData) {

public/data/map-bar-morph.js

diff --git a/public/data/map-bar-morph.js b/public/data/map-bar-morph.js
new file mode 100644
index 0000000..5fc999c
--- /dev/null
+++ b/public/data/map-bar-morph.js
@@ -0,0 +1,147 @@
+/*
+title: Morphing between Map and Bar
+category: map, animation
+titleCN: 地图柱状图变形动画
+videoStart: 2000
+videoEnd: 6000
+*/
+
+myChart.showLoading();
+
+$.get(ROOT_PATH + '/data/asset/geo/USA.json', function (usaJson) {
+    myChart.hideLoading();
+
+    echarts.registerMap('USA', usaJson, {
+        Alaska: {              // 把阿拉斯加移到美国主大陆左下方
+            left: -131,
+            top: 25,
+            width: 15
+        },
+        Hawaii: {
+            left: -110,        // 夏威夷
+            top: 28,
+            width: 5
+        },
+        'Puerto Rico': {       // 波多黎各
+            left: -76,
+            top: 26,
+            width: 2
+        }
+    });
+
+
+    var data = [
+        {name: 'Alabama', value: 4822023},
+        {name: 'Alaska', value: 731449},
+        {name: 'Arizona', value: 6553255},
+        {name: 'Arkansas', value: 2949131},
+        {name: 'California', value: 38041430},
+        {name: 'Colorado', value: 5187582},
+        {name: 'Connecticut', value: 3590347},
+        {name: 'Delaware', value: 917092},
+        {name: 'District of Columbia', value: 632323},
+        {name: 'Florida', value: 19317568},
+        {name: 'Georgia', value: 9919945},
+        {name: 'Hawaii', value: 1392313},
+        {name: 'Idaho', value: 1595728},
+        {name: 'Illinois', value: 12875255},
+        {name: 'Indiana', value: 6537334},
+        {name: 'Iowa', value: 3074186},
+        {name: 'Kansas', value: 2885905},
+        {name: 'Kentucky', value: 4380415},
+        {name: 'Louisiana', value: 4601893},
+        {name: 'Maine', value: 1329192},
+        {name: 'Maryland', value: 5884563},
+        {name: 'Massachusetts', value: 6646144},
+        {name: 'Michigan', value: 9883360},
+        {name: 'Minnesota', value: 5379139},
+        {name: 'Mississippi', value: 2984926},
+        {name: 'Missouri', value: 6021988},
+        {name: 'Montana', value: 1005141},
+        {name: 'Nebraska', value: 1855525},
+        {name: 'Nevada', value: 2758931},
+        {name: 'New Hampshire', value: 1320718},
+        {name: 'New Jersey', value: 8864590},
+        {name: 'New Mexico', value: 2085538},
+        {name: 'New York', value: 19570261},
+        {name: 'North Carolina', value: 9752073},
+        {name: 'North Dakota', value: 699628},
+        {name: 'Ohio', value: 11544225},
+        {name: 'Oklahoma', value: 3814820},
+        {name: 'Oregon', value: 3899353},
+        {name: 'Pennsylvania', value: 12763536},
+        {name: 'Rhode Island', value: 1050292},
+        {name: 'South Carolina', value: 4723723},
+        {name: 'South Dakota', value: 833354},
+        {name: 'Tennessee', value: 6456243},
+        {name: 'Texas', value: 26059203},
+        {name: 'Utah', value: 2855287},
+        {name: 'Vermont', value: 626011},
+        {name: 'Virginia', value: 8185867},
+        {name: 'Washington', value: 6897012},
+        {name: 'West Virginia', value: 1855413},
+        {name: 'Wisconsin', value: 5726398},
+        {name: 'Wyoming', value: 576412},
+        {name: 'Puerto Rico', value: 3667084}
+    ];
+
+    data.sort(function (a, b) {
+        return a.value - b.value;
+    });
+
+    var mapOption = {
+        visualMap: {
+            left: 'right',
+            min: 500000,
+            max: 38000000,
+            inRange: {
+                color: ['#313695', '#4575b4', '#74add1', '#abd9e9', '#e0f3f8', '#ffffbf', '#fee090', '#fdae61', '#f46d43', '#d73027', '#a50026']
+            },
+            text: ['High', 'Low'],
+            calculable: true
+        },
+        series: [
+            {
+                id: 'population',
+                type: 'map',
+                roam: true,
+                map: 'USA',
+                animationDurationUpdate: 1000,
+                universalTransition: true,
+                data: data
+            }
+        ]
+    };
+
+    var barOption = {
+        xAxis: {
+            type: 'value'
+        },
+        yAxis: {
+            type: 'category',
+            axisLabel: {
+                rotate: 30
+            },
+            data: data.map(function (item) {
+                return item.name;
+            })
+        },
+        animationDurationUpdate: 1000,
+        series: {
+            type: 'bar',
+            id: 'population',
+            data: data.map(function (item) {
+                return item.value;
+            }),
+            universalTransition: true
+        }
+    };
+
+    var currentOption = mapOption;
+    myChart.setOption(mapOption);
+
+    setInterval(function () {
+        currentOption = currentOption === mapOption ? barOption : mapOption;
+        myChart.setOption(currentOption, true);
+    }, 2000);
+});
\ No newline at end of file

public/data/map-usa.js

diff --git a/public/data/map-usa.js b/public/data/map-usa.js
index 1c0b125..c4e57a7 100644
--- a/public/data/map-usa.js
+++ b/public/data/map-usa.js
@@ -1,7 +1,7 @@
 /*
 title: USA Population Estimates (2012)
 category: map
-titleCN: USA Population Estimates (2012)
+titleCN: 2012 年美国人口统计
 */
 
 myChart.showLoading();
@@ -75,11 +75,7 @@
                         show: true
                     }
                 },
-                // 文本位置修正
-                textFixed: {
-                    Alaska: [20, -20]
-                },
-                data:[
+                data: [
                     {name: 'Alabama', value: 4822023},
                     {name: 'Alaska', value: 731449},
                     {name: 'Arizona', value: 6553255},

public/data/pictorialBar-bar-transition.js

diff --git a/public/data/pictorialBar-bar-transition.js b/public/data/pictorialBar-bar-transition.js
new file mode 100644
index 0000000..45317cd
--- /dev/null
+++ b/public/data/pictorialBar-bar-transition.js
@@ -0,0 +1,144 @@
+/*
+title: Transition between pictorialBar and bar
+category: pictorialBar, animation
+titleCN: 象形主图变形为柱状图
+difficulty: 4
+videoStart: 2500
+videoEnd: 10000
+*/
+
+var pathSymbols = {
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+    show: true,
+    position: 'right',
+    offset: [10, 0],
+    textStyle: {
+        fontSize: 16
+    }
+};
+
+function makeOption(type, symbol) {
+    return {
+        title: {
+            text: 'Vehicles in X City'
+        },
+        legend: {
+            data: ['2015', '2016']
+        },
+        tooltip: {
+            trigger: 'axis',
+            axisPointer: {
+                type: 'shadow'
+            }
+        },
+        grid: {
+            containLabel: true,
+            left: 20
+        },
+        yAxis: {
+            data: ['reindeer', 'ship', 'plane', 'train', 'car'],
+            inverse: true,
+            axisLine: {show: false},
+            axisTick: {show: false},
+            axisLabel: {
+                margin: 30,
+                fontSize: 14
+            },
+            axisPointer: {
+                label: {
+                    show: true,
+                    margin: 30
+                }
+            }
+        },
+        xAxis: {
+            splitLine: {show: false},
+            axisLabel: {show: false},
+            axisTick: {show: false},
+            axisLine: {show: false}
+        },
+        animationDurationUpdate: 500,
+        series: [{
+            name: '2015',
+            id: 'bar1',
+            type: type,
+            label: labelSetting,
+            symbolRepeat: true,
+            symbolSize: ['80%', '60%'],
+            barCategoryGap: '40%',
+            universalTransition: {
+                enabled: true,
+                delay: function (idx, total) {
+                    return (idx / total) * 1000;
+                }
+            },
+            data: [{
+                value: 157,
+                symbol: symbol || pathSymbols.reindeer
+            }, {
+                value: 21,
+                symbol: symbol || pathSymbols.ship
+            }, {
+                value: 66,
+                symbol: symbol || pathSymbols.plane
+            }, {
+                value: 78,
+                symbol: symbol || pathSymbols.train
+            }, {
+                value: 123,
+                symbol: symbol || pathSymbols.car
+            }]
+        }, {
+            name: '2016',
+            id: 'bar2',
+            type: type,
+            barGap: '10%',
+            label: labelSetting,
+            symbolRepeat: true,
+            symbolSize: ['80%', '60%'],
+            universalTransition: {
+                enabled: true,
+                delay: function (idx, total) {
+                    return (idx / total) * 1000;
+                }
+            },
+            data: [{
+                value: 184,
+                symbol: symbol || pathSymbols.reindeer
+            }, {
+                value: 29,
+                symbol: symbol || pathSymbols.ship
+            }, {
+                value: 73,
+                symbol: symbol || pathSymbols.plane
+            }, {
+                value: 91,
+                symbol: symbol || pathSymbols.train
+            }, {
+                value: 95,
+                symbol: symbol || pathSymbols.car
+            }]
+        }]
+    };
+}
+
+var options = [
+    makeOption('pictorialBar'),
+    makeOption('bar'),
+    makeOption('pictorialBar', 'diamond')
+];
+
+var optionIndex = 0;
+option = options[optionIndex];
+
+setInterval(function () {
+    optionIndex = (optionIndex + 1) % options.length;
+    myChart.setOption(options[optionIndex]);
+}, 2500);
\ No newline at end of file

public/data/pictorialBar-forest.js

diff --git a/public/data/pictorialBar-forest.js b/public/data/pictorialBar-forest.js
index 8b001a6..318cdfe 100644
--- a/public/data/pictorialBar-forest.js
+++ b/public/data/pictorialBar-forest.js
@@ -2,7 +2,8 @@
 title: Expansion of forest
 category: pictorialBar
 titleCN: 森林的增长
-shotDelay: 5000
+videoStart: 4000
+videoEnd: 10000
 */
 
 var treeDataURI = 'data:image/png;base64,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';

public/data/pictorialBar-hill.js

diff --git a/public/data/pictorialBar-hill.js b/public/data/pictorialBar-hill.js
index dfe7373..956b04c 100644
--- a/public/data/pictorialBar-hill.js
+++ b/public/data/pictorialBar-hill.js
@@ -2,6 +2,8 @@
 title: Wish List and Mountain Height
 category: pictorialBar
 titleCN: 圣诞愿望清单和山峰高度
+videoStart: 0
+videoEnd: 2000
 */
 
 var paperDataURI = 'data:image/png;base64,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';

public/data/pie-parliament-transition.js

diff --git a/public/data/pie-parliament-transition.js b/public/data/pie-parliament-transition.js
new file mode 100644
index 0000000..220b128
--- /dev/null
+++ b/public/data/pie-parliament-transition.js
@@ -0,0 +1,141 @@
+/*
+title: Transition of Parliament and Pie Chart
+category: custom, animtion
+titleCN: 自定义议会图与饼图过渡动画
+difficulty: 10
+videoStart: 1000
+videoEnd: 6000
+*/
+
+var data = [
+    { value: 800, name: 'A' },
+    { value: 635, name: 'B' },
+    { value: 580, name: 'C' },
+    { value: 484, name: 'D' },
+    { value: 300, name: 'E' },
+    { value: 200, name: 'F' }
+];
+
+var defaultPalette = [
+    // '#51689b', '#ce5c5c', '#fbc357', '#8fbf8f', '#659d84', '#fb8e6a', '#c77288', '#786090', '#91c4c5', '#6890ba'
+    '#5470c6',
+    '#91cc75',
+    '#fac858',
+    '#ee6666',
+    '#73c0de',
+    '#3ba272',
+    '#fc8452',
+    '#9a60b4',
+    '#ea7ccc'
+];
+
+var radius = ['30%', '80%'];
+
+var pieOption = {
+    series: [{
+        type: 'pie',
+        id: 'distribution',
+        radius: radius,
+        label: {
+            show: false
+        },
+        universalTransition: true,
+        animationDurationUpdate: 1000,
+        data: data
+    }]
+};
+
+
+var parliamentOption = (function () {
+    var sum = data.reduce(function (sum, cur) {
+        return sum + cur.value;
+    }, 0);
+
+    var angles = [];
+    var startAngle = -Math.PI / 2;
+    var curAngle = startAngle;
+    data.forEach(function (item) {
+        angles.push(curAngle);
+        curAngle += (item.value / sum) * Math.PI * 2;
+    });
+    angles.push(startAngle + Math.PI * 2);
+    function parliamentLayout(startAngle, endAngle, totalAngle, r0, r1, size) {
+        var rowsCount = Math.ceil((r1 - r0) / size);
+        var points = [];
+
+        var r = r0;
+        for (var i = 0; i < rowsCount; i++) {
+            // Recalculate size
+            var totalRingSeatsNumber = Math.round((totalAngle * r) / size);
+            var newSize = (totalAngle * r) / totalRingSeatsNumber;
+            for (
+                var k = Math.floor((startAngle * r) / newSize) * newSize;
+                k < Math.floor((endAngle * r) / newSize) * newSize - 1e-6;
+                k += newSize
+            ) {
+                var angle = k / r;
+                var x = Math.cos(angle) * r;
+                var y = Math.sin(angle) * r;
+                points.push([x, y]);
+            }
+
+            r += size;
+        }
+
+        return points;
+    }
+    return {
+        series: {
+            type: 'custom',
+            id: 'distribution',
+            data: data,
+            coordinateSystem: undefined,
+            universalTransition: true,
+            animationDurationUpdate: 1000,
+            renderItem: function (params, api) {
+                var idx = params.dataIndex;
+                var viewSize = Math.min(api.getWidth(), api.getHeight());
+                var r0 = ((parseFloat(radius[0]) / 100) * viewSize) / 2;
+                var r1 = ((parseFloat(radius[1]) / 100) * viewSize) / 2;
+                var cx = api.getWidth() * 0.5;
+                var cy = api.getHeight() * 0.5;
+                var size = viewSize / 50;
+
+                var points = parliamentLayout(
+                    angles[idx],
+                    angles[idx + 1],
+                    Math.PI * 2,
+                    r0,
+                    r1,
+                    size + 3
+                );
+
+                return {
+                    type: 'group',
+                    children: points.map(function (pt) {
+                        return {
+                            type: 'circle',
+                            autoBatch: true,
+                            shape: {
+                                cx: cx + pt[0],
+                                cy: cy + pt[1],
+                                r: size / 2
+                            },
+                            style: {
+                                fill: defaultPalette[idx % defaultPalette.length]
+                            }
+                        };
+                    })
+                };
+            }
+        }
+    };
+})();
+
+
+var currentOption = option = pieOption;
+
+setInterval(function () {
+    currentOption = currentOption === pieOption ? parliamentOption : pieOption;
+    myChart.setOption(currentOption);
+}, 2000);
\ No newline at end of file

public/data/scatter-aggregate-bar.js

diff --git a/public/data/scatter-aggregate-bar.js b/public/data/scatter-aggregate-bar.js
new file mode 100644
index 0000000..ad77fd1
--- /dev/null
+++ b/public/data/scatter-aggregate-bar.js
@@ -0,0 +1,187 @@
+/*
+title: Aggregate Scatter to Bar
+category: scatter, animation
+titleCN: 散点图聚合为柱状图动画
+difficulty: 4
+videoStart: 2000
+videoEnd: 6000
+*/
+
+var femaleData = [[161.2, 51.6], [167.5, 59.0], [159.5, 49.2], [157.0, 63.0], [155.8, 53.6],
+    [170.0, 59.0], [159.1, 47.6], [166.0, 69.8], [176.2, 66.8], [160.2, 75.2],
+    [172.5, 55.2], [170.9, 54.2], [172.9, 62.5], [153.4, 42.0], [160.0, 50.0],
+    [147.2, 49.8], [168.2, 49.2], [175.0, 73.2], [157.0, 47.8], [167.6, 68.8],
+    [159.5, 50.6], [175.0, 82.5], [166.8, 57.2], [176.5, 87.8], [170.2, 72.8],
+    [174.0, 54.5], [173.0, 59.8], [179.9, 67.3], [170.5, 67.8], [160.0, 47.0],
+    [154.4, 46.2], [162.0, 55.0], [176.5, 83.0], [160.0, 54.4], [152.0, 45.8],
+    [162.1, 53.6], [170.0, 73.2], [160.2, 52.1], [161.3, 67.9], [166.4, 56.6],
+    [168.9, 62.3], [163.8, 58.5], [167.6, 54.5], [160.0, 50.2], [161.3, 60.3],
+    [167.6, 58.3], [165.1, 56.2], [160.0, 50.2], [170.0, 72.9], [157.5, 59.8],
+    [167.6, 61.0], [160.7, 69.1], [163.2, 55.9], [152.4, 46.5], [157.5, 54.3],
+    [168.3, 54.8], [180.3, 60.7], [165.5, 60.0], [165.0, 62.0], [164.5, 60.3],
+    [156.0, 52.7], [160.0, 74.3], [163.0, 62.0], [165.7, 73.1], [161.0, 80.0],
+    [162.0, 54.7], [166.0, 53.2], [174.0, 75.7], [172.7, 61.1], [167.6, 55.7],
+    [151.1, 48.7], [164.5, 52.3], [163.5, 50.0], [152.0, 59.3], [169.0, 62.5],
+    [164.0, 55.7], [161.2, 54.8], [155.0, 45.9], [170.0, 70.6], [176.2, 67.2],
+    [170.0, 69.4], [162.5, 58.2], [170.3, 64.8], [164.1, 71.6], [169.5, 52.8],
+    [163.2, 59.8], [154.5, 49.0], [159.8, 50.0], [173.2, 69.2], [170.0, 55.9],
+    [161.4, 63.4], [169.0, 58.2], [166.2, 58.6], [159.4, 45.7], [162.5, 52.2],
+    [159.0, 48.6], [162.8, 57.8], [159.0, 55.6], [179.8, 66.8], [162.9, 59.4],
+    [161.0, 53.6], [151.1, 73.2], [168.2, 53.4], [168.9, 69.0], [173.2, 58.4],
+    [171.8, 56.2], [178.0, 70.6], [164.3, 59.8], [163.0, 72.0], [168.5, 65.2],
+    [166.8, 56.6], [172.7, 105.2], [163.5, 51.8], [169.4, 63.4], [167.8, 59.0],
+    [159.5, 47.6], [167.6, 63.0], [161.2, 55.2], [160.0, 45.0], [163.2, 54.0],
+    [162.2, 50.2], [161.3, 60.2], [149.5, 44.8], [157.5, 58.8], [163.2, 56.4],
+    [172.7, 62.0], [155.0, 49.2], [156.5, 67.2], [164.0, 53.8], [160.9, 54.4],
+    [162.8, 58.0], [167.0, 59.8], [160.0, 54.8], [160.0, 43.2], [168.9, 60.5],
+    [158.2, 46.4], [156.0, 64.4], [160.0, 48.8], [167.1, 62.2], [158.0, 55.5],
+    [167.6, 57.8], [156.0, 54.6], [162.1, 59.2], [173.4, 52.7], [159.8, 53.2],
+    [170.5, 64.5], [159.2, 51.8], [157.5, 56.0], [161.3, 63.6], [162.6, 63.2],
+    [160.0, 59.5], [168.9, 56.8], [165.1, 64.1], [162.6, 50.0], [165.1, 72.3],
+    [166.4, 55.0], [160.0, 55.9], [152.4, 60.4], [170.2, 69.1], [162.6, 84.5],
+    [170.2, 55.9], [158.8, 55.5], [172.7, 69.5], [167.6, 76.4], [162.6, 61.4],
+    [167.6, 65.9], [156.2, 58.6], [175.2, 66.8], [172.1, 56.6], [162.6, 58.6],
+    [160.0, 55.9], [165.1, 59.1], [182.9, 81.8], [166.4, 70.7], [165.1, 56.8],
+    [177.8, 60.0], [165.1, 58.2], [175.3, 72.7], [154.9, 54.1], [158.8, 49.1],
+    [172.7, 75.9], [168.9, 55.0], [161.3, 57.3], [167.6, 55.0], [165.1, 65.5],
+    [175.3, 65.5], [157.5, 48.6], [163.8, 58.6], [167.6, 63.6], [165.1, 55.2],
+    [165.1, 62.7], [168.9, 56.6], [162.6, 53.9], [164.5, 63.2], [176.5, 73.6],
+    [168.9, 62.0], [175.3, 63.6], [159.4, 53.2], [160.0, 53.4], [170.2, 55.0],
+    [162.6, 70.5], [167.6, 54.5], [162.6, 54.5], [160.7, 55.9], [160.0, 59.0],
+    [157.5, 63.6], [162.6, 54.5], [152.4, 47.3], [170.2, 67.7], [165.1, 80.9],
+    [172.7, 70.5], [165.1, 60.9], [170.2, 63.6], [170.2, 54.5], [170.2, 59.1],
+    [161.3, 70.5], [167.6, 52.7], [167.6, 62.7], [165.1, 86.3], [162.6, 66.4],
+    [152.4, 67.3], [168.9, 63.0], [170.2, 73.6], [175.2, 62.3], [175.2, 57.7],
+    [160.0, 55.4], [165.1, 104.1], [174.0, 55.5], [170.2, 77.3], [160.0, 80.5],
+    [167.6, 64.5], [167.6, 72.3], [167.6, 61.4], [154.9, 58.2], [162.6, 81.8],
+    [175.3, 63.6], [171.4, 53.4], [157.5, 54.5], [165.1, 53.6], [160.0, 60.0],
+    [174.0, 73.6], [162.6, 61.4], [174.0, 55.5], [162.6, 63.6], [161.3, 60.9],
+    [156.2, 60.0], [149.9, 46.8], [169.5, 57.3], [160.0, 64.1], [175.3, 63.6],
+    [169.5, 67.3], [160.0, 75.5], [172.7, 68.2], [162.6, 61.4], [157.5, 76.8],
+    [176.5, 71.8], [164.4, 55.5], [160.7, 48.6], [174.0, 66.4], [163.8, 67.3]
+];
+var maleDeta = [[174.0, 65.6], [175.3, 71.8], [193.5, 80.7], [186.5, 72.6], [187.2, 78.8],
+    [181.5, 74.8], [184.0, 86.4], [184.5, 78.4], [175.0, 62.0], [184.0, 81.6],
+    [180.0, 76.6], [177.8, 83.6], [192.0, 90.0], [176.0, 74.6], [174.0, 71.0],
+    [184.0, 79.6], [192.7, 93.8], [171.5, 70.0], [173.0, 72.4], [176.0, 85.9],
+    [176.0, 78.8], [180.5, 77.8], [172.7, 66.2], [176.0, 86.4], [173.5, 81.8],
+    [178.0, 89.6], [180.3, 82.8], [180.3, 76.4], [164.5, 63.2], [173.0, 60.9],
+    [183.5, 74.8], [175.5, 70.0], [188.0, 72.4], [189.2, 84.1], [172.8, 69.1],
+    [170.0, 59.5], [182.0, 67.2], [170.0, 61.3], [177.8, 68.6], [184.2, 80.1],
+    [186.7, 87.8], [171.4, 84.7], [172.7, 73.4], [175.3, 72.1], [180.3, 82.6],
+    [182.9, 88.7], [188.0, 84.1], [177.2, 94.1], [172.1, 74.9], [167.0, 59.1],
+    [169.5, 75.6], [174.0, 86.2], [172.7, 75.3], [182.2, 87.1], [164.1, 55.2],
+    [163.0, 57.0], [171.5, 61.4], [184.2, 76.8], [174.0, 86.8], [174.0, 72.2],
+    [177.0, 71.6], [186.0, 84.8], [167.0, 68.2], [171.8, 66.1], [182.0, 72.0],
+    [167.0, 64.6], [177.8, 74.8], [164.5, 70.0], [192.0, 101.6], [175.5, 63.2],
+    [171.2, 79.1], [181.6, 78.9], [167.4, 67.7], [181.1, 66.0], [177.0, 68.2],
+    [174.5, 63.9], [177.5, 72.0], [170.5, 56.8], [182.4, 74.5], [197.1, 90.9],
+    [180.1, 93.0], [175.5, 80.9], [180.6, 72.7], [184.4, 68.0], [175.5, 70.9],
+    [180.6, 72.5], [177.0, 72.5], [177.1, 83.4], [181.6, 75.5], [176.5, 73.0],
+    [175.0, 70.2], [174.0, 73.4], [165.1, 70.5], [177.0, 68.9], [192.0, 102.3],
+    [176.5, 68.4], [169.4, 65.9], [182.1, 75.7], [179.8, 84.5], [175.3, 87.7],
+    [184.9, 86.4], [177.3, 73.2], [167.4, 53.9], [178.1, 72.0], [168.9, 55.5],
+    [157.2, 58.4], [180.3, 83.2], [170.2, 72.7], [177.8, 64.1], [172.7, 72.3],
+    [165.1, 65.0], [186.7, 86.4], [165.1, 65.0], [174.0, 88.6], [175.3, 84.1],
+    [185.4, 66.8], [177.8, 75.5], [180.3, 93.2], [180.3, 82.7], [177.8, 58.0],
+    [177.8, 79.5], [177.8, 78.6], [177.8, 71.8], [177.8, 116.4], [163.8, 72.2],
+    [188.0, 83.6], [198.1, 85.5], [175.3, 90.9], [166.4, 85.9], [190.5, 89.1],
+    [166.4, 75.0], [177.8, 77.7], [179.7, 86.4], [172.7, 90.9], [190.5, 73.6],
+    [185.4, 76.4], [168.9, 69.1], [167.6, 84.5], [175.3, 64.5], [170.2, 69.1],
+    [190.5, 108.6], [177.8, 86.4], [190.5, 80.9], [177.8, 87.7], [184.2, 94.5],
+    [176.5, 80.2], [177.8, 72.0], [180.3, 71.4], [171.4, 72.7], [172.7, 84.1],
+    [172.7, 76.8], [177.8, 63.6], [177.8, 80.9], [182.9, 80.9], [170.2, 85.5],
+    [167.6, 68.6], [175.3, 67.7], [165.1, 66.4], [185.4, 102.3], [181.6, 70.5],
+    [172.7, 95.9], [190.5, 84.1], [179.1, 87.3], [175.3, 71.8], [170.2, 65.9],
+    [193.0, 95.9], [171.4, 91.4], [177.8, 81.8], [177.8, 96.8], [167.6, 69.1],
+    [167.6, 82.7], [180.3, 75.5], [182.9, 79.5], [176.5, 73.6], [186.7, 91.8],
+    [188.0, 84.1], [188.0, 85.9], [177.8, 81.8], [174.0, 82.5], [177.8, 80.5],
+    [171.4, 70.0], [185.4, 81.8], [185.4, 84.1], [188.0, 90.5], [188.0, 91.4],
+    [182.9, 89.1], [176.5, 85.0], [175.3, 69.1], [175.3, 73.6], [188.0, 80.5],
+    [188.0, 82.7], [175.3, 86.4], [170.5, 67.7], [179.1, 92.7], [177.8, 93.6],
+    [175.3, 70.9], [182.9, 75.0], [170.8, 93.2], [188.0, 93.2], [180.3, 77.7],
+    [177.8, 61.4], [185.4, 94.1], [168.9, 75.0], [185.4, 83.6], [180.3, 85.5],
+    [174.0, 73.9], [167.6, 66.8], [182.9, 87.3], [160.0, 72.3], [180.3, 88.6],
+    [167.6, 75.5], [186.7, 101.4], [175.3, 91.1], [175.3, 67.3], [175.9, 77.7],
+    [175.3, 81.8], [179.1, 75.5], [181.6, 84.5], [177.8, 76.6], [182.9, 85.0],
+    [177.8, 102.5], [184.2, 77.3], [179.1, 71.8], [176.5, 87.9], [188.0, 94.3],
+    [174.0, 70.9], [167.6, 64.5], [170.2, 77.3], [167.6, 72.3], [188.0, 87.3],
+    [174.0, 80.0], [176.5, 82.3], [180.3, 73.6], [167.6, 74.1], [188.0, 85.9],
+    [180.3, 73.2], [167.6, 76.3], [183.0, 65.9], [183.0, 90.9], [179.1, 89.1],
+    [170.2, 62.3], [177.8, 82.7], [179.1, 79.1], [190.5, 98.2], [177.8, 84.1],
+    [180.3, 83.2], [180.3, 83.2]
+];
+
+function calculateAverage(data, dim) {
+    var total = 0;
+    for (var i = 0; i < data.length; i++) {
+        total += data[i][dim];
+    }
+    return total /= data.length;
+}
+
+
+var scatterOption = option = {
+    xAxis: {
+        scale: true
+    },
+    yAxis: {
+        scale: true
+    },
+    series: [{
+        type: 'scatter',
+        id: 'female',
+        dataGroupId: 'female',
+        universalTransition: {
+            enabled: true,
+            delay: function (idx, count) {
+                return Math.random() * 400;
+            }
+        },
+        data: femaleData
+    }, {
+        type: 'scatter',
+        id: 'male',
+        dataGroupId: 'male',
+        universalTransition: {
+            enabled: true,
+            delay: function (idx, count) {
+                return Math.random() * 400;
+            }
+        },
+        data: maleDeta
+    }]
+};
+
+var barOption = {
+    xAxis: {
+        type: 'category',
+        data: ['Female', 'Male']
+    },
+    yAxis: {},
+    series: [{
+        type: 'bar',
+        id: 'total',
+        data: [{
+            value: calculateAverage(maleDeta, 0),
+            groupId: 'male'
+        }, {
+            value: calculateAverage(femaleData, 0),
+            groupId: 'female'
+        }],
+        universalTransition: {
+            enabled: true,
+            seriesKey: ['female', 'male'],
+            delay: function (idx, count) {
+                return Math.random() * 400;
+            }
+        }
+    }]
+};
+
+var currentOption = scatterOption;
+
+setInterval(function () {
+    currentOption = currentOption === scatterOption ? barOption : scatterOption;
+    myChart.setOption(currentOption, true);
+}, 2000);
\ No newline at end of file

public/data/scatter-polynomial-regression.js

diff --git a/public/data/scatter-polynomial-regression.js b/public/data/scatter-polynomial-regression.js
index a3dc55f..d278f41 100644
--- a/public/data/scatter-polynomial-regression.js
+++ b/public/data/scatter-polynomial-regression.js
@@ -70,7 +70,7 @@
     series: [{
         name: 'scatter',
         type: 'scatter'
-        }, {
+    }, {
         name: 'line',
         type: 'line',
         smooth: true,

public/data/scatter-symbol-morph.js

diff --git a/public/data/scatter-symbol-morph.js b/public/data/scatter-symbol-morph.js
new file mode 100644
index 0000000..c3006a5
--- /dev/null
+++ b/public/data/scatter-symbol-morph.js
@@ -0,0 +1,97 @@
+/*
+title: Symbol Shape Morph
+category: scatter
+titleCN: 散点图变形动画
+difficulty: 4
+videoStart: 1000
+videoEnd: 8000
+*/
+
+var xData = [];
+var yData = [];
+var data = [];
+for (var y = 0; y < 10; y++) {
+    yData.push(y);
+    for (var x = 0; x < 10; x++) {
+        data.push([
+            x, y, 10
+        ]);
+    }
+}
+for (var x = 0; x < 10; x++) {
+    xData.push(x);
+}
+
+var options = [{
+    grid: {
+        left: 0,
+        right: 0,
+        top: 0,
+        bottom: 0
+    },
+    xAxis: {
+        show: false,
+        type: 'category',
+        data: xData
+    },
+    yAxis: {
+        show: false,
+        type: 'category',
+        data: yData
+    },
+    series: [
+        {
+            type: 'scatter',
+            data: data,
+            symbol: 'roundRect',
+            universalTransition: true,
+            symbolSize: 50
+        }
+    ]
+},
+{
+    series: [{
+        type: 'scatter',
+        symbol: 'circle'
+    }]
+},
+
+{
+    series: [{
+        type: 'scatter',
+        symbol: 'diamond'
+    }]
+},
+
+{
+    series: [{
+        symbol: 'path://M23.6 2c-3.363 0-6.258 2.736-7.599 5.594-1.342-2.858-4.237-5.594-7.601-5.594-4.637 0-8.4 3.764-8.4 8.401 0 9.433 9.516 11.906 16.001 21.232 6.13-9.268 15.999-12.1 15.999-21.232 0-4.637-3.763-8.401-8.4-8.401z',
+    }]
+},
+
+{
+    series: [{
+        symbol: 'path://M16 0c-8.837 0-16 7.163-16 16s7.163 16 16 16 16-7.163 16-16-7.163-16-16-16zM22 8c1.105 0 2 1.343 2 3s-0.895 3-2 3-2-1.343-2-3 0.895-3 2-3zM10 8c1.105 0 2 1.343 2 3s-0.895 3-2 3-2-1.343-2-3 0.895-3 2-3zM16 28c-5.215 0-9.544-4.371-10-9.947 2.93 1.691 6.377 2.658 10 2.658s7.070-0.963 10-2.654c-0.455 5.576-4.785 9.942-10 9.942z',
+    }]
+},
+
+{
+    series: [{
+        symbol: 'path://M32 2c0-1.422-0.298-2.775-0.833-4-1.049 2.401-3.014 4.31-5.453 5.287-2.694-2.061-6.061-3.287-9.714-3.287s-7.021 1.226-9.714 3.287c-2.439-0.976-4.404-2.886-5.453-5.287-0.535 1.225-0.833 2.578-0.833 4 0 2.299 0.777 4.417 2.081 6.106-1.324 2.329-2.081 5.023-2.081 7.894 0 8.837 7.163 16 16 16s16-7.163 16-16c0-2.871-0.757-5.565-2.081-7.894 1.304-1.689 2.081-3.806 2.081-6.106zM18.003 11.891c0.064-1.483 1.413-2.467 2.55-3.036 1.086-0.543 2.16-0.814 2.205-0.826 0.536-0.134 1.079 0.192 1.213 0.728s-0.192 1.079-0.728 1.213c-0.551 0.139-1.204 0.379-1.779 0.667 0.333 0.357 0.537 0.836 0.537 1.363 0 1.105-0.895 2-2 2s-2-0.895-2-2c0-0.037 0.001-0.073 0.003-0.109zM8.030 8.758c0.134-0.536 0.677-0.862 1.213-0.728 0.045 0.011 1.119 0.283 2.205 0.826 1.137 0.569 2.486 1.553 2.55 3.036 0.002 0.036 0.003 0.072 0.003 0.109 0 1.105-0.895 2-2 2s-2-0.895-2-2c0-0.527 0.204-1.005 0.537-1.363-0.575-0.288-1.228-0.528-1.779-0.667-0.536-0.134-0.861-0.677-0.728-1.213zM16 26c-3.641 0-6.827-1.946-8.576-4.855l2.573-1.544c1.224 2.036 3.454 3.398 6.003 3.398s4.779-1.362 6.003-3.398l2.573 1.544c-1.749 2.908-4.935 4.855-8.576 4.855z',
+    }]
+},
+
+{
+    series: [{
+        symbol: 'path://M30.148 5.588c-2.934-3.42-7.288-5.588-12.148-5.588-8.837 0-16 7.163-16 16s7.163 16 16 16c4.86 0 9.213-2.167 12.148-5.588l-10.148-10.412 10.148-10.412zM22 3.769c1.232 0 2.231 0.999 2.231 2.231s-0.999 2.231-2.231 2.231-2.231-0.999-2.231-2.231c0-1.232 0.999-2.231 2.231-2.231z',
+    }]
+}];
+
+
+var optionIndex = 0;
+option = options[optionIndex];
+
+setInterval(function () {
+    optionIndex = (optionIndex + 1) % options.length;
+    myChart.setOption(options[optionIndex]);
+}, 1000);
\ No newline at end of file

public/data/treemap-sunburst-transition.js

diff --git a/public/data/treemap-sunburst-transition.js b/public/data/treemap-sunburst-transition.js
new file mode 100644
index 0000000..6e88c01
--- /dev/null
+++ b/public/data/treemap-sunburst-transition.js
@@ -0,0 +1,56 @@
+/*
+title: Transition between Treemap and Sunburst
+category: treemap
+titleCN: 矩形树图和旭日图的动画过渡
+difficulty: 4
+videoStart: 3000
+videoEnd: 9000
+*/
+
+$.getJSON(ROOT_PATH + '/data/asset/data/echarts-package-size.json', function (data) {
+    var treemapOption = {
+        series: [{
+            type: 'treemap',
+            id: 'echarts-package-size',
+            animationDurationUpdate: 1000,
+            roam: false,
+            nodeClick: undefined,
+            data: data.children,
+            universalTransition: true,
+            label: {
+                show: true
+            },
+            breadcrumb: {
+                show: false
+            }
+        }]
+    };
+
+    var sunburstOption = {
+        series: [{
+            type: 'sunburst',
+            id: 'echarts-package-size',
+            radius: ['20%', '90%'],
+            animationDurationUpdate: 1000,
+            nodeClick: undefined,
+            data: data.children,
+            universalTransition: true,
+            itemStyle: {
+                borderWidth: 1,
+                borderColor: 'rgba(255,255,255,.5)'
+            },
+            label: {
+                show: false
+            }
+        }]
+    };
+
+    var currentOption = treemapOption;
+
+    myChart.setOption(currentOption);
+
+    setInterval(function () {
+        currentOption = currentOption === treemapOption ? sunburstOption : treemapOption;
+        myChart.setOption(currentOption);
+    }, 3000);
+});
\ No newline at end of file

src/data/chart-list-data.js

diff --git a/src/data/chart-list-data.js b/src/data/chart-list-data.js
index 41b952d..d28eb22 100644
--- a/src/data/chart-list-data.js
+++ b/src/data/chart-list-data.js
@@ -1612,10 +1612,30 @@
     "category": [
       "bar"
     ],
+    "id": "bar-polar-label-tangential",
+    "tags": [],
+    "title": "Tangential Polar Bar Label Position",
+    "titleCN": "极坐标系切向柱状图的标签位置",
+    "difficulty": 7
+  },
+  {
+    "category": [
+      "bar"
+    ],
+    "id": "bar-polar-label-radial",
+    "tags": [],
+    "title": "Radial Polar Bar Label Position",
+    "titleCN": "极坐标系径向柱状图的标签位置",
+    "difficulty": 7
+  },
+  {
+    "category": [
+      "bar"
+    ],
     "id": "bar-polar-stack",
     "tags": [],
-    "title": "Stacked Bar Chart on Polar",
-    "titleCN": "极坐标系下的堆叠柱状图",
+    "title": "Stacked Tangential Polar Bar",
+    "titleCN": "极坐标系切向堆积柱状图",
     "difficulty": 7
   },
   {
@@ -1624,8 +1644,8 @@
     ],
     "id": "bar-polar-stack-radial",
     "tags": [],
-    "title": "Stacked Bar Chart on Polar(Radial)",
-    "titleCN": "极坐标系下的堆叠柱状图",
+    "title": "Stacked Radial Polar Bar",
+    "titleCN": "极坐标系径向堆积柱状图",
     "difficulty": 7
   },
   {

tool/build-example.js

diff --git a/tool/build-example.js b/tool/build-example.js
index 417634e..8b9a1aa 100644
--- a/tool/build-example.js
+++ b/tool/build-example.js
@@ -14,6 +14,7 @@
 const { compareImage } = require('../common/compareImage');
 const { runTasks } = require('../common/task');
 const nStatic = require('node-static');
+const shell = require('shelljs');
 
 function optionToJson(obj, prop) {
     let json = JSON.stringify(obj, function(key, value) {
@@ -62,6 +63,7 @@
 const DEFAULT_PAGE_WIDTH = 700;
 const DEFAULT_PAGE_RATIO = 0.75;
 const OUTPUT_IMAGE_WIDTH = 600;
+const OUTPUT_IMAGE_HEIGHT = OUTPUT_IMAGE_WIDTH * DEFAULT_PAGE_RATIO;
 
 const PORT = 3323;
 const BASE_URL = `http://localhost:${PORT}`;
@@ -86,17 +88,55 @@
     theme,
     rootDir,
     basename,
-    pageWidth,
-    screenshotDelay
+    // Shot parameters
+    { shotWidth, shotDelay, videoStart, videoEnd }
 ) {
     const thumbFolder = (theme !== 'default') ? ('thumb-' + theme) : 'thumb';
     const page = await browser.newPage();
+    const hasVideo = !isNaN(videoStart) && !isNaN(videoEnd) && +videoEnd > +videoStart;
+    const thumbDir = `${rootDir}public/${sourceFolder}/${thumbFolder}`;
+    const fileBase = `${thumbDir}/${basename}`;
+    const webmFile = `${fileBase}.webm`;
+
+    function checkDownloadFile() {
+        return new Promise(resolve => {
+            let timeout = 0
+            function check() {
+                if (fs.existsSync(webmFile)) {
+                    resolve();
+                    return;
+                }
+                timeout += 100;
+                if (timeout >= 20000 + +videoEnd) {
+                    console.error(fileBase + '.webm download timeout.');
+                    resolve();
+                    return;
+                }
+
+                setTimeout(check, 100);
+            }
+            setTimeout(check, 100);
+        });
+    }
+
+    let checkingDownload;
 
     await page.setViewport({
-        width: (pageWidth || DEFAULT_PAGE_WIDTH),
-        height: (pageWidth || DEFAULT_PAGE_WIDTH) * DEFAULT_PAGE_RATIO
+        width: (shotWidth || DEFAULT_PAGE_WIDTH),
+        height: (shotWidth || DEFAULT_PAGE_WIDTH) * DEFAULT_PAGE_RATIO
     });
-    const url = `${SCREENSHOT_PAGE_URL}?c=${basename}&s=${sourceFolder}&t=${theme}`;
+    let url = `${SCREENSHOT_PAGE_URL}?c=${basename}&t=${theme}&s=${sourceFolder}`;
+
+    if (hasVideo) {
+        url += `&start=${videoStart}&end=${videoEnd}`;
+        await page._client.send('Page.setDownloadBehavior', {
+            behavior: 'allow',
+            downloadPath: thumbDir
+        });
+
+        checkingDownload = checkDownloadFile();
+    }
+
     const resourceRootPath = `${BASE_URL}/public`;
     // console.log(url);
     await page.evaluateOnNewDocument(function (resourceRootPath) {
@@ -113,6 +153,7 @@
             console.log(chalk.gray(`PAGE LOG[${basename}]: ${text}`));
         }
     });
+
     console.log(`Generating ${theme} thumbs.....${basename}`);
     // https://stackoverflow.com/questions/46160929/puppeteer-wait-for-all-images-to-load-then-take-screenshot
     try {
@@ -127,9 +168,7 @@
             // Timeout
         }
         await waitTime(200);
-        await waitTime(screenshotDelay || 0);
-        const thumbDir = `${rootDir}public/${sourceFolder}/${thumbFolder}`;
-        const fileBase = `${thumbDir}/${basename}`;
+        await waitTime(shotDelay || 0);
         const filePathTmpRaw = `${fileBase}-tmp-raw.png`;
         const filePathTmp = `${fileBase}-tmp.png`;
         const filePath = `${fileBase}.png`;
@@ -155,9 +194,8 @@
             type: 'png'
         });
 
-
         await sharp(filePathTmpRaw)
-            .resize(OUTPUT_IMAGE_WIDTH, OUTPUT_IMAGE_WIDTH * DEFAULT_PAGE_RATIO)
+            .resize(OUTPUT_IMAGE_WIDTH, OUTPUT_IMAGE_HEIGHT)
             .toFile(filePathTmp);
 
         const {diffRatio} = await compareImage(filePath, filePathTmp, 0.1);
@@ -169,7 +207,9 @@
         else {
             console.log(diffRatio);
             fs.copyFileSync(filePathTmp, filePath);
-            await convertToWebP(filePath);
+            if (!hasVideo) {
+                await convertToWebP(filePath);
+            }
         }
 
         try {
@@ -179,6 +219,22 @@
 
         fs.unlinkSync(filePathTmpRaw);
         fs.unlinkSync(filePathTmp);
+
+        if (hasVideo) {
+            await checkingDownload;
+            // const ffmpeg = createFFmpeg({ log: true });
+            // await ffmpeg.load();
+            // ffmpeg.FS('writeFile', webmFile, await fetchFile(webmFile));
+            // await ffmpeg.run('-i', webmFile, '-f', 'webp', `${fileBase}.webp`);
+            // await fs.promises.writeFile('./test.mp4', ffmpeg.FS('readFile', `${fileBase}.webp`));
+            // ffmpeg.exit(0);
+            shell.exec(`ffmpeg -y -i ${fileBase}.webm -s ${OUTPUT_IMAGE_WIDTH}x${OUTPUT_IMAGE_HEIGHT} -f webp ${fileBase}.webp`);
+            try {
+                fs.unlinkSync(webmFile);
+            }
+            catch(e) {}
+        }
+
     }
     catch (e) {
         console.error(url);
@@ -286,8 +342,12 @@
                     theme,
                     rootDir,
                     basename,
-                    fmResult.data.shotWidth,
-                    fmResult.data.shotDelay
+                    {
+                        shotWidth: fmResult.data.shotWidth,
+                        shotDelay: fmResult.data.shotDelay,
+                        videoStart: fmResult.data.videoStart,
+                        videoEnd: fmResult.data.videoEnd,
+                    }
                 );
             }
         }
@@ -296,7 +356,7 @@
             await browser.close();
             throw new Error(e.toString());
         }
-    }, sourceFolder === 'data-gl' ? 2 : 16);
+    }, sourceFolder === 'data-gl' ? 2 : 4);
 
     if (BUILD_THUMBS) {
         server.close();

tool/screenshot.html

diff --git a/tool/screenshot.html b/tool/screenshot.html
index 44c9b5e..57b113a 100644
--- a/tool/screenshot.html
+++ b/tool/screenshot.html
@@ -6,7 +6,8 @@
     <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js"></script>
     <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/lodash@3.10.1/index.min.js"></script>
     <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/dat.gui@0.6.5/build/dat.gui.min.js"></script>
-    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5/dist/echarts.js"></script>
+    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts-nightly/dist/echarts.js"></script>
+    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts-gl/dist/echarts-gl.js"></script>
     <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5.0.0-alpha.2/map/js/china.js"></script>
     <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5.0.0-alpha.2/map/js/world.js"></script>
     <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5/dist/extension/dataTool.js"></script>
@@ -39,26 +40,13 @@
     });
 
     var myChart = echarts.init(document.getElementById('viewport'), params.t || null);
-    // var _$oldSetOption = myChart.setOption;
-    // var _$finalOption;
-    // myChart.setOption = function (option, notMerge) {
-    //     if (!_$finalOption || notMerge === true || (notMerge && notMerge.notMerge)) {
-    //         _$finalOption = option;
-    //     }
-    //     else {
-    //         // TODO Should be same logic with echarts merge.
-    //         _$finalOption = echarts.util.merge(_$finalOption, option);
-    //     }
-
-    //     return _$oldSetOption.apply(this, arguments);
-    // }
     var _$getEChartsOption = function () {
         return myChart.getOption();
     }
     var app = {};
 </script>
 <script>
-    var myrng = new Math.seedrandom('echarts');
+    const myrng = new Math.seedrandom('echarts');
     Math.random = function () {
         return myrng();
     };
@@ -77,23 +65,24 @@
         });
     }
 
+    const isAnimated = !isNaN(params.start) && !isNaN(params.end) && +params.end > +params.start;
+
     echarts.registerPreprocessor(function (option) {
-        option.animation = false;
-        // option.textStyle = {
-        //     fontSize: 14
-        // };
-        if (option.series) {
-            if (!(option.series instanceof Array)) {
-                option.series = [option.series];
-            }
-            option.series.forEach(function (seriesOpt) {
-                if (seriesOpt.type === 'graph') {
-                    seriesOpt.force = seriesOpt.force || {};
-                    seriesOpt.force.layoutAnimation = false;
+        if (!isAnimated) {
+            option.animation = false;
+            if (option.series) {
+                if (!(option.series instanceof Array)) {
+                    option.series = [option.series];
                 }
-                seriesOpt.progressive = 1e5;
-                seriesOpt.animation = false;
-            });
+                option.series.forEach(function (seriesOpt) {
+                    if (seriesOpt.type === 'graph') {
+                        seriesOpt.force = seriesOpt.force || {};
+                        seriesOpt.force.layoutAnimation = false;
+                    }
+                    seriesOpt.progressive = 1e5;
+                    seriesOpt.animation = false;
+                });
+            }
         }
         addComponentPadding(option.title);
         addComponentPadding(option.legend);
@@ -106,18 +95,92 @@
             console.error('No ROOT_PATH specified. Use default ROOT_PATH "."');
             window.ROOT_PATH = '.';
         }
-        var sourceFolder = params.s || 'data';
-        var scriptTag = document.createElement('script');
+        const sourceFolder = params.s || 'data';
+        const scriptTag = document.createElement('script');
         scriptTag.async = false;
         scriptTag.src = `../public/${sourceFolder}/${params.c}.js`
         document.body.appendChild(scriptTag);
 
+        let videoRecorder;
         scriptTag.onload = function () {
+            if (isAnimated) {
+                videoRecorder = new VideoRecorder(myChart);
+                setTimeout(() => {
+                    videoRecorder.start();
+                }, +params.start);
+                setTimeout(() => {
+                    videoRecorder.stop();
+                }, +params.end);
+            }
+
             if (typeof option !== 'undefined' && option) {
                 myChart.setOption(option);
             }
         }
     }
+
+    function VideoRecorder(chart) {
+        this.start = startRecording;
+        this.stop = stopRecording;
+
+        var recorder = null;
+
+        var oldRefreshImmediately = chart.getZr().refreshImmediately;
+
+        function startRecording() {
+            // Normal resolution or high resolution?
+            var compositeCanvas = document.createElement('canvas');
+            var width = chart.getWidth();
+            var height = chart.getHeight();
+            compositeCanvas.width = width;
+            compositeCanvas.height = height;
+            var compositeCtx = compositeCanvas.getContext('2d');
+
+            chart.getZr().refreshImmediately = function () {
+                var ret = oldRefreshImmediately.apply(this, arguments);
+                var canvasList = chart.getDom().querySelectorAll('canvas');
+                compositeCtx.fillStyle = '#fff';
+                compositeCtx.fillRect(0, 0, width, height);
+                for (var i = 0; i < canvasList.length; i++) {
+                    compositeCtx.drawImage(canvasList[i], 0, 0, width, height);
+                }
+                return ret;
+            }
+
+            var stream = compositeCanvas.captureStream(25);
+            recorder = new MediaRecorder(stream, { mimeType: 'video/webm' });
+
+            var videoData = [];
+            recorder.ondataavailable = function (event) {
+                if (event.data && event.data.size) {
+                    videoData.push(event.data);
+                }
+            };
+
+            recorder.onstop = function () {
+                var url = URL.createObjectURL(new Blob(videoData, { type: 'video/webm' }));
+
+                var a = document.createElement('a');
+                a.href = url;
+                a.download = `${params.c}.webm`;
+                a.click();
+
+                setTimeout(function () {
+                    window.URL.revokeObjectURL(url);
+                }, 100);
+            };
+
+            recorder.start();
+        }
+
+        function stopRecording() {
+            if (recorder) {
+                chart.getZr().refreshImmediately = oldRefreshImmediately;
+                recorder.stop();
+            }
+        }
+    }
+
 </script>
 </body>
 </html>
\ No newline at end of file