{"id":453,"date":"2016-02-24T23:45:39","date_gmt":"2016-02-24T15:45:39","guid":{"rendered":"http:\/\/www.hightopo.com\/blog\/?p=453"},"modified":"2016-02-24T23:45:39","modified_gmt":"2016-02-24T15:45:39","slug":"html5%e7%9a%84webgl%e5%ae%9e%e7%8e%b0%e7%9a%843d%e5%92%8c2d%e6%8b%93%e6%89%91%e6%a0%91","status":"publish","type":"post","link":"https:\/\/www.hightopo.com\/blog\/453.html","title":{"rendered":"HTML5\u7684WebGL\u5b9e\u73b0\u76843D\u548c2D\u62d3\u6251\u6811"},"content":{"rendered":"

\u5728HT for Web<\/a>\u4e2d2D\u548c3D\u5e94\u7528\u90fd\u652f\u6301\u6811\u72b6\u7ed3\u6784\u6570\u636e\u7684\u5c55\u793a\uff0c\u5c55\u73b0\u6548\u679c\u5404\u5f02\uff0c2D\u4e0a\u7684\u6811\u72b6\u7ed3\u6784\u5728\u5c55\u73b0\u5c42\u7ea7\u5173\u7cfb\u660e\u663e\uff0c\u4f46\u662f\u5982\u679c\u6570\u636e\u91cf\u5927\u7684\u8bdd\uff0c\u770b\u8d77\u6765\u5c31\u6ca1\u90a3\u4e48\u76f4\u89c2\uff0c\u627e\u5230\u6307\u5b9a\u7684\u8282\u70b9\u6bd4\u8f83\u56f0\u96be\uff0c\u800c3D\u4e0a\u7684\u6811\u72b6\u7ed3\u6784\u5728\u5c55\u73b0\u4e0a\u914d\u5408HT for Web<\/a>\u7684\u5f39\u529b\u5e03\u5c40\u7ec4\u4ef6\u4f1a\u663e\u5f97\u6bd4\u8f83\u76f4\u89c2\uff0c\u4e00\u773c\u671b\u53bb\u53ef\u4ee5\u628a\u6574\u4e2a\u6811\u72b6\u7ed3\u6784\u6570\u636e\u770b\u4e2a\u5927\u6982\uff0c\u4f46\u662f\u5728\u5f39\u529b\u5e03\u5c40\u7684\u4f5c\u7528\u4e0b\uff0c\u5176\u5c42\u6b21\u7ed3\u6784\u770b\u5f97\u5c31\u4e0d\u662f\u90a3\u4e48\u6e05\u6670\u4e86\u3002\u6240\u4ee5\u8fd9\u65f6\u5019\u7ed3\u6784\u6e05\u6670\u76843D\u6811\u7684\u9700\u6c42\u5c31\u6765\u4e86\uff0c\u90a3\u4e48\u8fd9\u4e2a3D\u6811<\/a>\u5177\u4f53\u957f\u6210\u5565\u6837\u5462\uff0c\u6211\u4eec\u6765\u4e00\u8d77\u76ee\u7779\u4e0b~<\/p>\n

\"\"<\/p>\n

 <\/p>\n

\u8981\u5b9e\u73b0\u8fd9\u6837\u7684\u6548\u679c\uff0c\u8be5\u4ece\u4f55\u4e0b\u624b\u5462\uff1f\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u5c06\u8fd9\u4e2a\u95ee\u9898\u62c6\u89e3\u6210\u82e5\u5e72\u4e2a\u5c0f\u95ee\u9898\u6765\u89e3\u51b3\u3002<\/p>\n

1. \u521b\u5efa\u4e00\u4e2a\u6811\u72b6\u7ed3\u6784<\/p>\n

\u6709\u4e86\u89e3\u8fc7HT for Web<\/a>\u7684\u670b\u53cb\uff0c\u5bf9\u6811\u72b6\u7ed3\u6784\u6570\u636e\u7684\u521b\u5efa\u5e94\u8be5\u90fd\u4e0d\u964c\u751f\uff0c\u5728\u8fd9\u91cc\u6211\u5c31\u4e0d\u505a\u6df1\u5165\u7684\u63a2\u8ba8\u4e86\u3002\u6811\u72b6\u7ed3\u6784\u6570\u636e\u7684\u521b\u5efa\u5f88\u7b80\u5355\uff0c\u5728\u8fd9\u91cc\u4e3a\u4e86\u8ba9\u4ee3\u7801\u66f4\u7b80\u6d01\uff0c\u6211\u5c01\u88c5\u4e86\u4e09\u4e2a\u65b9\u6cd5\u6765\u521b\u5efa\u6811\u72b6\u7ed3\u6784\u6570\u636e\uff0c\u5177\u4f53\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

\n
\/**\r\n * \u521b\u5efa\u8fde\u7ebf\r\n * @param {ht.DataModel} dataModel - \u6570\u636e\u5bb9\u5668\r\n * @param {ht.Node} source - \u8d77\u70b9\r\n * @param {ht.Node} target - \u7ec8\u70b9\r\n *\/\r\nfunction createEdge(dataModel, source, target) {\r\n    \/\/ \u521b\u5efa\u8fde\u7ebf\uff0c\u94fe\u63a5\u7236\u4eb2\u8282\u70b9\u53ca\u5b69\u5b50\u8282\u70b9\r\n    var edge = new ht.Edge();\r\n    edge.setSource(source);\r\n    edge.setTarget(target);\r\n    dataModel.add(edge);\r\n}\r\n\r\n\/**\r\n * \u521b\u5efa\u8282\u70b9\u5bf9\u8c61\r\n * @param {ht.DataModel} dataModel - \u6570\u636e\u5bb9\u5668\r\n * @param {ht.Node} [parent] - \u7236\u4eb2\u8282\u70b9\r\n * @returns {ht.Node} \u8282\u70b9\u5bf9\u8c61\r\n *\/\r\nfunction createNode(dataModel, parent) {\r\n    var node = new ht.Node();\r\n    if (parent) {\r\n        \/\/ \u8bbe\u7f6e\u7236\u4eb2\u8282\u70b9\r\n        node.setParent(parent);\r\n\r\n        createEdge(dataModel, parent, node);\r\n    }\r\n    \/\/ \u6dfb\u52a0\u5230\u6570\u636e\u5bb9\u5668\u4e2d\r\n    dataModel.add(node);\r\n    return node;\r\n}\r\n\r\n\/**\r\n * \u521b\u5efa\u7ed3\u6784\u6811\r\n * @param {ht.DataModel} dataModel - \u6570\u636e\u5bb9\u5668\r\n * @param {ht.Node} parent - \u7236\u4eb2\u8282\u70b9\r\n * @param {Number} level - \u6df1\u5ea6\r\n * @param {Array} count - \u6bcf\u5c42\u8282\u70b9\u4e2a\u6570\r\n * @param {function(ht.Node, Number, Number)} callback - \u56de\u8c03\u51fd\u6570(\u8282\u70b9\u5bf9\u8c61\uff0c\u8282\u70b9\u5bf9\u5e94\u7684\u5c42\u7ea7\uff0c\u8282\u70b9\u5728\u5c42\u7ea7\u4e2d\u7684\u7f16\u53f7)\r\n *\/\r\nfunction createTreeNodes(dataModel, parent, level, count, callback) {\r\n    level--;\r\n    var num = (typeof count === 'number' ? count : count[level]);\r\n\r\n    while (num--) {\r\n        var node = createNode(dataModel, parent);\r\n        \/\/ \u8c03\u7528\u56de\u8c03\u51fd\u6570\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u56de\u8c03\u91cc\u9762\u8bbe\u7f6e\u8282\u70b9\u76f8\u5173\u5c5e\u6027\r\n        callback(node, level, num);\r\n        if (level === 0) continue;\r\n        \/\/ \u9012\u5f52\u8c03\u7528\u521b\u5efa\u5b69\u5b50\u8282\u70b9\r\n        createTreeNodes(dataModel, node, level, count, callback);\r\n    }\r\n}<\/pre>\n<\/div>\n
\u563f\u563f\uff0c\u4ee3\u7801\u5199\u5f97\u53ef\u80fd\u6709\u4e9b\u590d\u6742\u4e86\uff0c\u7b80\u5355\u7684\u505a\u6cd5\u5c31\u662f\u5d4c\u5957\u51e0\u4e2afor\u5faa\u73af\u6765\u521b\u5efa\u6811\u72b6\u7ed3\u6784\u6570\u636e\uff0c\u5728\u8fd9\u91cc\u6211\u5c31\u4e0d\u591a\u8bf4\u4e86\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u63a2\u7a76\u7b2c\u4e8c\u4e2a\u95ee\u9898\u3002<\/p>\n
2. \u57282D\u62d3\u6251<\/a>\u4e0b\u6a21\u62df3D\u6811<\/a>\u72b6\u7ed3\u6784\u6bcf\u5c42\u7684\u534a\u5f84\u8ba1\u7b97<\/p>\n
\u57283D\u4e0b\u7684\u6811\u72b6\u7ed3\u6784\u4f53\u6700\u5927\u7684\u95ee\u9898\u5c31\u5728\u4e8e\uff0c\u6bcf\u4e2a\u8282\u70b9\u7684\u5c42\u6b21\u53ca\u6bcf\u5c42\u8282\u70b9\u56f4\u7ed5\u5176\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\u8ba1\u7b97\u3002\u73b0\u5728\u6811\u72b6\u7ed3\u6784\u6570\u636e\u5df2\u7ecf\u6709\u4e86\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u5c31\u8be5\u5f00\u59cb\u8ba1\u7b97\u534a\u5f84\u4e86\uff0c\u6211\u4eec\u4ece\u4e24\u5c42\u6811\u72b6\u7ed3\u6784\u5f00\u59cb\u63a8\u7b97\uff1a<\/p>\n
\"\"<\/p>\n
 <\/p>\n
\u6211\u73b0\u5728\u5148\u521b\u5efa\u4e86\u4e24\u5c42\u7684\u6811\u72b6\u7ed3\u6784\uff0c\u6240\u6709\u7684\u5b50\u8282\u70b9\u662f\u4e00\u5b57\u6392\u5f00\uff0c\u5e76\u6ca1\u6709\u73af\u7ed5\u5176\u7236\u4eb2\u8282\u70b9\uff0c\u90a3\u4e48\u6211\u4eec\u8be5\u5982\u4f55\u53bb\u786e\u5b9a\u8fd9\u4e9b\u5b69\u5b50\u8282\u70b9\u7684\u4f4d\u7f6e\u5462\uff1f<\/p>\n
\u9996\u5148\u6211\u4eec\u5f97\u77e5\u9053\uff0c\u6bcf\u4e2a\u672b\u7aef\u8282\u70b9\u90fd\u6709\u4e00\u5708\u5c5e\u4e8e\u81ea\u5df1\u7684\u9886\u57df\uff0c\u4e0d\u7136\u8282\u70b9\u4e0e\u8282\u70b9\u4e4b\u95f4\u5c06\u4f1a\u5b58\u5728\u91cd\u53e0\u7684\u60c5\u51b5\uff0c\u6240\u4ee5\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5047\u5b9a\u672b\u7aef\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u4e3a25\uff0c\u90a3\u4e48\u4e24\u4e2a\u76f8\u90bb\u8282\u70b9\u4e4b\u95f4\u7684\u6700\u77ed\u8ddd\u79bb\u5c06\u662f\u4e24\u500d\u7684\u8282\u70b9\u9886\u57df\u534a\u5f84\uff0c\u4e5f\u5c31\u662f50\uff0c\u800c\u8fd9\u4e9b\u672b\u7aef\u8282\u70b9\u5c06\u5747\u5300\u5730\u56f4\u7ed5\u5728\u5176\u7236\u4eb2\u8282\u70b9\u56db\u5468\uff0c\u90a3\u4e48\u76f8\u90bb\u4e24\u4e2a\u8282\u70b9\u7684\u5f20\u89d2\u5c31\u53ef\u4ee5\u786e\u8ba4\u51fa\u6765\uff0c\u6709\u4e86\u5f20\u89d2\uff0c\u6709\u4e86\u4e24\u70b9\u95f4\u7684\u8ddd\u79bb\uff0c\u90a3\u4e48\u8282\u70b9\u7ed5\u5176\u7236\u4eb2\u8282\u70b9\u7684\u6700\u77ed\u534a\u5f84\u4e5f\u5c31\u80fd\u8ba1\u7b97\u51fa\u6765\u4e86\uff0c\u5047\u8bbe\u5f20\u89d2\u4e3aa\uff0c\u4e24\u70b9\u95f4\u6700\u5c0f\u8ddd\u79bb\u4e3ab\uff0c\u90a3\u4e48\u6700\u5c0f\u534a\u5f84r\u7684\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1a<\/p>\n
r = b \/ 2 \/ sin(a \/ 2);<\/p>\n
\u90a3\u4e48\u63a5\u4e0b\u6765\u6211\u4e48\u5c31\u6765\u5e03\u5c40\u4e0b\u8fd9\u4e2a\u6811\uff0c\u4ee3\u7801\u662f\u8fd9\u6837\u5199\u7684\uff1a<\/p>\n
\n
\/**\r\n * \u5e03\u5c40\u6811\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\r\n * @param {Number} [minR] - \u672b\u7aef\u8282\u70b9\u7684\u6700\u5c0f\u534a\u5f84\r\n *\/\r\nfunction layout(root, minR) {\r\n    \/\/ \u8bbe\u7f6e\u9ed8\u8ba4\u534a\u5f84\r\n    minR = (minR == null ? 25 : minR);\r\n    \/\/ \u83b7\u53d6\u5230\u6240\u6709\u7684\u5b69\u5b50\u8282\u70b9\u5bf9\u8c61\u6570\u7ec4\r\n    var children = root.getChildren().toArray();\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u4e2a\u6570\r\n    var len = children.length;\r\n    \/\/ \u8ba1\u7b97\u5f20\u89d2\r\n    var degree = Math.PI * 2 \/ len;\r\n    \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u7ed5\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\r\n    var sin = Math.sin(degree \/ 2),\r\n        r = minR \/ sin;\r\n    \/\/ \u83b7\u53d6\u7236\u4eb2\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n    var rootPosition = root.p();\r\n\r\n    children.forEach(function(child, index) {\r\n        \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u6bcf\u4e2a\u8282\u70b9\u76f8\u5bf9\u4e8e\u7236\u4eb2\u8282\u70b9\u7684\u504f\u79fb\u91cf\r\n        var s = Math.sin(degree * index),\r\n            c = Math.cos(degree * index),\r\n            x = s * r,\r\n            y = c * r;\r\n\r\n        \/\/ \u8bbe\u7f6e\u5b69\u5b50\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n        child.p(x + rootPosition.x, y + rootPosition.y);\r\n    });\r\n}<\/pre>\n<\/div>\n
\u5728\u4ee3\u7801\u4e2d\uff0c\u4f60\u4f1a\u53d1\u73b0\u6211\u5c06\u672b\u7aef\u534a\u5f84\u9ed8\u8ba4\u8bbe\u7f6e\u4e3a25\u4e86\uff0c\u5982\u6b64\uff0c\u6211\u4eec\u901a\u8fc7\u8c03\u7528layout()\u65b9\u6cd5\u5c31\u53ef\u4ee5\u5bf9\u7ed3\u6784\u6811\u8fdb\u884c\u5e03\u5c40\u4e86\uff0c\u5176\u5e03\u5c40\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n
\"\"<\/p>\n
\u4ece\u6548\u679c\u56fe\u53ef\u4ee5\u770b\u5f97\u51fa\uff0c\u672b\u7aef\u8282\u70b9\u7684\u9ed8\u8ba4\u534a\u5f84\u5e76\u4e0d\u662f\u5f88\u7406\u60f3\uff0c\u5e03\u5c40\u51fa\u6765\u7684\u6548\u679c\u8fde\u7ebf\u90fd\u5feb\u770b\u4e0d\u5230\u4e86\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u589e\u52a0\u672b\u7aef\u8282\u70b9\u7684\u9ed8\u8ba4\u534a\u5f84\u6765\u89e3\u51b3\u5e03\u5c40\u592a\u5bc6\u7684\u95ee\u9898\uff0c\u5982\u5c06\u9ed8\u8ba4\u534a\u5f84\u8bbe\u7f6e\u621040\u7684\u6548\u679c\u56fe\u5982\u4e0b:<\/p>\n
\"\"<\/p>\n
\u73b0\u5728\u4e24\u5c42\u7684\u6811\u72b6\u5206\u5e03\u89e3\u51b3\u4e86\uff0c\u90a3\u4e48\u6211\u4eec\u6765\u770b\u770b\u4e09\u5c42\u7684\u6811\u72b6\u5206\u5e03\u8be5\u5982\u4f55\u5904\u7406\u3002<\/p>\n
\u5c06\u7b2c\u4e8c\u5c42\u548c\u7b2c\u4e09\u5c42\u770b\u6210\u4e00\u4e2a\u6574\u4f53\uff0c\u90a3\u4e48\u5176\u5b9e\u4e09\u5c42\u7684\u6811\u72b6\u7ed3\u6784\u8ddf\u4e24\u5c42\u662f\u4e00\u6837\u7684\uff0c\u4e0d\u540c\u7684\u662f\u5728\u5904\u7406\u7b2c\u4e8c\u5c42\u8282\u70b9\u65f6\uff0c\u5e94\u8be5\u5c06\u5176\u770b\u505a\u4e00\u4e2a\u4e24\u5c42\u7684\u6811\u72b6\u7ed3\u6784\u6765\u5904\u7406\uff0c\u90a3\u4e48\u50cf\u8fd9\u79cd\u89c4\u5f8b\u7684\u5904\u7406\u7528\u9012\u5f52\u6700\u597d\u4e0d\u8fc7\u4e86\uff0c\u56e0\u6b64\u6211\u4eec\u5c06\u4ee3\u7801\u7a0d\u5fae\u8be5\u7740\u4e0b\uff0c\u5728\u770b\u770b\u6548\u679c\u5982\u4f55\uff1a<\/p>\n
\"\"<\/p>\n
\u4e0d\u884c\uff0c\u8282\u70b9\u90fd\u91cd\u53e0\u5728\u4e00\u8d77\u4e86\uff0c\u770b\u6765\u7b80\u5355\u7684\u9012\u5f52\u662f\u4e0d\u884c\u7684\uff0c\u90a3\u4e48\u5177\u4f53\u7684\u95ee\u9898\u51fa\u5728\u54ea\u91cc\u5462\uff1f<\/p>\n
\u4ed4\u7ec6\u5206\u6790\u4e86\u4e0b\uff0c\u53d1\u73b0\u7236\u4eb2\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u662f\u7531\u5176\u5b69\u5b50\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u51b3\u5b9a\u7684\uff0c\u56e0\u6b64\u5728\u5e03\u5c40\u65f6\u9700\u8981\u77e5\u9053\u81ea\u8eab\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\uff0c\u800c\u4e14\u8282\u70b9\u7684\u4f4d\u7f6e\u53d6\u51b3\u4e8e\u7236\u4eb2\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u53ca\u4f4d\u7f6e\u4fe1\u606f\uff0c\u8fd9\u6837\u4e00\u6765\u5c31\u65e0\u6cd5\u8fb9\u8ba1\u7b97\u534a\u5f84\u8fb9\u5e03\u5c40\u8282\u70b9\u4f4d\u7f6e\u4e86\u3002<\/p>\n
\u90a3\u4e48\u73b0\u5728\u53ea\u80fd\u5c06\u534a\u5f84\u7684\u8ba1\u7b97\u548c\u5e03\u5c40\u5206\u5f00\u6765\uff0c\u505a\u4e24\u6b65\u64cd\u4f5c\u4e86\uff0c\u6211\u4eec\u5148\u6765\u5206\u6790\u4e0b\u8282\u70b9\u534a\u5f84\u7684\u8ba1\u7b97\uff1a<\/p>\n
\u9996\u5148\u9700\u8981\u660e\u786e\u6700\u5173\u952e\u7684\u6761\u4ef6\uff0c\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\u53d6\u51b3\u4e8e\u5176\u5b69\u5b50\u8282\u70b9\u7684\u534a\u5f84\uff0c\u8fd9\u4e2a\u6761\u4ef6\u544a\u8bc9\u6211\u4eec\uff0c\u53ea\u80fd\u4ece\u4e0b\u5f80\u4e0a\u8ba1\u7b97\u8282\u70b9\u534a\u5f84\uff0c\u56e0\u6b64\u6211\u4eec\u8bbe\u8ba1\u7684\u9012\u5f52\u51fd\u6570\u5fc5\u987b\u662f\u5148\u9012\u5f52\u540e\u8ba1\u7b97\uff0c\u5e9f\u8bdd\u4e0d\u591a\u8bf4\uff0c\u6211\u4eec\u6765\u770b\u4e0b\u5177\u4f53\u7684\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n
\n
\/**\r\n * \u5c31\u6309\u8282\u70b9\u9886\u57df\u534a\u5f84\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\u5bf9\u8c61\r\n * @param {Number} minR - \u6700\u5c0f\u534a\u5f84\r\n *\/\r\nfunction countRadius(root, minR) {\r\n    minR = (minR == null ? 25 : minR);\r\n\r\n    \/\/ \u82e5\u679c\u662f\u672b\u7aef\u8282\u70b9\uff0c\u5219\u8bbe\u7f6e\u5176\u534a\u5f84\u4e3a\u6700\u5c0f\u534a\u5f84\r\n    if (!root.hasChildren()) {\r\n        root.a('radius', minR);\r\n        return;\r\n    }\r\n\r\n    \/\/ \u904d\u5386\u5b69\u5b50\u8282\u70b9\u9012\u5f52\u8ba1\u7b97\u534a\u5f84\r\n    var children = root.getChildren();\r\n    children.each(function(child) {\r\n        countRadius(child, minR);\r\n    });\r\n\r\n    var child0 = root.getChildAt(0);\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u534a\u5f84\r\n    var radius = child0.a('radius');\r\n\r\n    \/\/ \u8ba1\u7b97\u5b50\u8282\u70b9\u76841\/2\u5f20\u89d2\r\n    var degree = Math.PI \/ children.size();\r\n    \/\/ \u8ba1\u7b97\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\r\n    var pRadius = radius \/ Math.sin(degree);\r\n\r\n    \/\/ \u8bbe\u7f6e\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\u53ca\u5176\u5b69\u5b50\u8282\u70b9\u7684\u5e03\u5c40\u5f20\u89d2\r\n    root.a('radius', pRadius);\r\n    root.a('degree', degree * 2);\r\n}<\/pre>\n<\/div>\n
OK\uff0c\u534a\u5f84\u7684\u8ba1\u7b97\u89e3\u51b3\u4e86\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u5c31\u8be5\u89e3\u51b3\u5e03\u5c40\u95ee\u9898\u4e86\uff0c\u5e03\u5c40\u6811\u72b6\u7ed3\u6784\u6570\u636e\u9700\u8981\u660e\u786e\uff1a\u5b69\u5b50\u8282\u70b9\u7684\u5750\u6807\u4f4d\u7f6e\u53d6\u51b3\u4e8e\u5176\u7236\u4eb2\u8282\u70b9\u7684\u5750\u6807\u4f4d\u7f6e\uff0c\u56e0\u6b64\u5e03\u5c40\u7684\u9012\u5f52\u65b9\u5f0f\u548c\u8ba1\u7b97\u534a\u5f84\u7684\u9012\u5f52\u65b9\u5f0f\u4e0d\u540c\uff0c\u6211\u4eec\u9700\u8981\u5148\u5e03\u5c40\u7236\u4eb2\u8282\u70b9\u518d\u9012\u5f52\u5e03\u5c40\u5b69\u5b50\u8282\u70b9\uff0c\u5177\u4f53\u770b\u770b\u4ee3\u7801\u5427\uff1a<\/p>\n
\n
\/**\r\n * \u5e03\u5c40\u6811\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\r\n *\/\r\nfunction layout(root) {\r\n    \/\/ \u83b7\u53d6\u5230\u6240\u6709\u7684\u5b69\u5b50\u8282\u70b9\u5bf9\u8c61\u6570\u7ec4\r\n    var children = root.getChildren().toArray();\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u4e2a\u6570\r\n    var len = children.length;\r\n    \/\/ \u8ba1\u7b97\u5f20\u89d2\r\n    var degree = root.a('degree');\r\n    \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u7ed5\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\r\n    var r = root.a('radius');\r\n    \/\/ \u83b7\u53d6\u7236\u4eb2\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n    var rootPosition = root.p();\r\n\r\n    children.forEach(function(child, index) {\r\n        \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u6bcf\u4e2a\u8282\u70b9\u76f8\u5bf9\u4e8e\u7236\u4eb2\u8282\u70b9\u7684\u504f\u79fb\u91cf\r\n        var s = Math.sin(degree * index),\r\n            c = Math.cos(degree * index),\r\n            x = s * r,\r\n            y = c * r;\r\n\r\n        \/\/ \u8bbe\u7f6e\u5b69\u5b50\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n        child.p(x + rootPosition.x, y + rootPosition.y);\r\n\r\n        \/\/ \u9012\u5f52\u8c03\u7528\u5e03\u5c40\u5b69\u5b50\u8282\u70b9\r\n        layout(child);\r\n    });\r\n}<\/pre>\n<\/div>\n
\u4ee3\u7801\u5199\u5b8c\u4e86\uff0c\u63a5\u4e0b\u6765\u5c31\u662f\u89c1\u8bc1\u5947\u8ff9\u7684\u65f6\u523b\u4e86\uff0c\u6211\u4eec\u6765\u770b\u770b\u6548\u679c\u56fe\u5427\uff1a<\/p>\n
\"\"<\/p>\n
\u4e0d\u5bf9\u5440\uff0c\u4ee3\u7801\u5e94\u8be5\u662f\u6ca1\u95ee\u9898\u7684\u5440\uff0c\u4e3a\u4ec0\u4e48\u663e\u793a\u51fa\u6765\u7684\u6548\u679c\u8fd8\u662f\u4f1a\u91cd\u53e0\u5462\uff1f\u4e0d\u8fc7\u4ed4\u7ec6\u89c2\u5bdf\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\u76f8\u6bd4\u4e0a\u4e2a\u7248\u672c\u7684\u5e03\u5c40\u4f1a\u597d\u5f88\u591a\uff0c\u81f3\u5c11\u8fd9\u6b21\u53ea\u662f\u672b\u7aef\u8282\u70b9\u91cd\u53e0\u4e86\uff0c\u90a3\u4e48\u95ee\u9898\u51fa\u5728\u54ea\u91cc\u5462\uff1f<\/p>\n
\u4e0d\u77e5\u9053\u5927\u5bb6\u6709\u6ca1\u6709\u53d1\u73b0\uff0c\u6392\u9664\u8282\u70b9\u81ea\u8eab\u7684\u5927\u5c0f\uff0c\u5012\u6570\u7b2c\u4e8c\u5c42\u8282\u70b9\u4e0e\u8282\u70b9\u4e4b\u95f4\u7684\u9886\u57df\u662f\u76f8\u5207\u7684\uff0c\u90a3\u4e48\u4e5f\u5c31\u662f\u8bf4\u8282\u70b9\u7684\u534a\u5f84\u4e0d\u4ec5\u548c\u5176\u5b69\u5b50\u8282\u70b9\u7684\u534a\u5f84\u6709\u5173\uff0c\u8fd8\u4e0e\u5176\u5b59\u5b50\u8282\u70b9\u7684\u534a\u5f84\u6709\u5173\uff0c\u90a3\u6211\u4eec\u628a\u8ba1\u7b97\u8282\u70b9\u534a\u5f84\u7684\u65b9\u6cd5\u6539\u9020\u4e0b\uff0c\u5c06\u5b59\u5b50\u8282\u70b9\u7684\u534a\u5f84\u4e5f\u8003\u8651\u8fdb\u53bb\u518d\u770b\u770b\u6548\u679c\u5982\u4f55\uff0c\u6539\u9020\u540e\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
\n
\/**\r\n * \u5c31\u6309\u8282\u70b9\u9886\u57df\u534a\u5f84\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\u5bf9\u8c61\r\n * @param {Number} minR - \u6700\u5c0f\u534a\u5f84\r\n *\/\r\nfunction countRadius(root, minR) {\r\n   \u2026\u2026\r\n\r\n    var child0 = root.getChildAt(0);\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u534a\u5f84\r\n    var radius = child0.a('radius');\r\n\r\n    var child00 = child0.getChildAt(0);\r\n    \/\/ \u534a\u5f84\u52a0\u4e0a\u5b59\u5b50\u8282\u70b9\u534a\u5f84\uff0c\u907f\u514d\u8282\u70b9\u91cd\u53e0\r\n    if (child00) radius += child00.a('radius');\r\n\r\n   \u2026\u2026\r\n}<\/pre>\n<\/div>\n
\u4e0b\u9762\u5c31\u6765\u770b\u770b\u6548\u679c\u5427~<\/p>\n
\"\"<\/p>\n
\u54c8\u54c8\uff0c\u770b\u6765\u6211\u4eec\u5206\u6790\u5bf9\u4e86\uff0c\u679c\u7136\u5c31\u4e0d\u518d\u91cd\u53e0\u4e86\uff0c\u90a3\u6211\u4eec\u6765\u770b\u770b\u518d\u591a\u4e00\u5c42\u8282\u70b9\u4f1a\u662f\u600e\u4e48\u6837\u7684\u58ee\u89c2\u573a\u666f\u5462\uff1f<\/p>\n
\"\"<\/p>\n
\u54e6\uff0cNO\uff01\u8fd9\u4e0d\u662f\u6211\u60f3\u770b\u5230\u7684\u6548\u679c\uff0c\u53c8\u91cd\u53e0\u4e86\uff0c\u597d\u8ba8\u538c\u3002<\/p>\n
\u4e0d\u8981\u7740\u6025\uff0c\u6211\u4eec\u518d\u6765\u4ed4\u7ec6\u5206\u6790\u5206\u6790\u4e0b\uff0c\u5728\u524d\u9762\uff0c\u6211\u4eec\u63d0\u5230\u8fc7\u4e00\u4e2a\u540d\u8bcd\u2014\u2014\u9886\u57df\u534a\u5f84\uff0c\u4ec0\u4e48\u662f\u9886\u57df\u534a\u5f84\u5462\uff1f\u5f88\u7b80\u5355\uff0c\u5c31\u662f\u53ef\u4ee5\u5bb9\u7eb3\u4e0b\u81ea\u8eab\u53ca\u5176\u6240\u6709\u5b69\u5b50\u8282\u70b9\u7684\u6700\u5c0f\u534a\u5f84\uff0c\u90a3\u4e48\u95ee\u9898\u5c31\u6765\u4e86\uff0c\u672b\u7aef\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u4e3a\u6211\u4eec\u6307\u5b9a\u7684\u6700\u5c0f\u534a\u5f84\uff0c\u90a3\u4e48\u5012\u6570\u7b2c\u4e8c\u5c42\u7684\u9886\u57df\u534a\u5f84\u662f\u591a\u5c11\u5462\uff1f\u5e76\u4e0d\u662f\u6211\u4eec\u524d\u9762\u8ba1\u7b97\u51fa\u6765\u7684\u534a\u5f84\uff0c\u800c\u5e94\u8be5\u52a0\u4e0a\u672b\u7aef\u8282\u70b9\u81ea\u8eab\u7684\u9886\u57df\u534a\u5f84\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u7740\u5305\u542b\u5173\u7cfb\uff0c\u5b50\u8282\u70b9\u7684\u9886\u57df\u5fc5\u987b\u5305\u542b\u4e8e\u5176\u7236\u4eb2\u8282\u70b9\u7684\u9886\u57df\u4e2d\uff0c\u90a3\u6211\u4eec\u5728\u770b\u770b\u4e0a\u56fe\uff0c\u662f\u4e0d\u662f\u611f\u89c9\u672b\u7aef\u8282\u70b9\u7684\u9886\u57df\u88ab\u4fb5\u5360\u4e86\u3002\u90a3\u4e48\u6211\u4eec\u524d\u9762\u8ba1\u7b97\u51fa\u6765\u7684\u534a\u5f84\u4ee3\u8868\u7740\u4ec0\u4e48\u5462\uff1f\u524d\u9762\u8ba1\u7b97\u51fa\u6765\u7684\u534a\u5f84\u5176\u5b9e\u4ee3\u8868\u7740\u5b69\u5b50\u8282\u70b9\u7684\u5e03\u5c40\u534a\u5f84\uff0c\u5728\u5e03\u5c40\u7684\u65f6\u5019\u662f\u901a\u8fc7\u8be5\u534a\u5f84\u6765\u5e03\u5c40\u7684\u3002<\/p>\n
OK\uff0c\u90a3\u6211\u4eec\u6765\u603b\u7ed3\u4e0b\uff0c\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u662f\u5176\u4e0b\u6bcf\u5c42\u8282\u70b9\u7684\u5e03\u5c40\u534a\u5f84\u4e4b\u548c\uff0c\u800c\u5e03\u5c40\u534a\u5f84\u9700\u8981\u6839\u636e\u5176\u5b69\u5b50\u8282\u70b9\u4e2a\u6570\u53ca\u5176\u9886\u57df\u534a\u5f84\u5171\u540c\u51b3\u5b9a\u3002<\/p>\n
\u597d\u4e86\uff0c\u6211\u4eec\u73b0\u5728\u77e5\u9053\u95ee\u9898\u7684\u6240\u5728\u4e86\uff0c\u90a3\u4e48\u6211\u4eec\u7684\u4ee3\u7801\u8be5\u5982\u4f55\u53bb\u5b9e\u73b0\u5462\uff1f\u63a5\u7740\u5f80\u4e0b\u770b\uff1a<\/p>\n
\n
\/**\r\n * \u5c31\u6309\u8282\u70b9\u9886\u57df\u534a\u5f84\u53ca\u5e03\u5c40\u534a\u5f84\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\u5bf9\u8c61\r\n * @param {Number} minR - \u6700\u5c0f\u534a\u5f84\r\n *\/\r\nfunction countRadius(root, minR) {\r\n    minR = (minR == null ? 25 : minR);\r\n\r\n    \/\/ \u82e5\u679c\u662f\u672b\u7aef\u8282\u70b9\uff0c\u5219\u8bbe\u7f6e\u5176\u5e03\u5c40\u534a\u5f84\u53ca\u9886\u57df\u534a\u5f84\u4e3a\u6700\u5c0f\u534a\u5f84\r\n    if (!root.hasChildren()) {\r\n        root.a('radius', minR);\r\n        root.a('totalRadius', minR);\r\n        return;\r\n    }\r\n\r\n    \/\/ \u904d\u5386\u5b69\u5b50\u8282\u70b9\u9012\u5f52\u8ba1\u7b97\u534a\u5f84\r\n    var children = root.getChildren();\r\n    children.each(function(child) {\r\n        countRadius(child, minR);\r\n    });\r\n\r\n    var child0 = root.getChildAt(0);\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u534a\u5f84\r\n    var radius = child0.a('radius'),\r\n        totalRadius = child0.a('totalRadius');\r\n\r\n    \/\/ \u8ba1\u7b97\u5b50\u8282\u70b9\u76841\/2\u5f20\u89d2\r\n    var degree = Math.PI \/ children.size();\r\n    \/\/ \u8ba1\u7b97\u7236\u4eb2\u8282\u70b9\u7684\u5e03\u5c40\u534a\u5f84\r\n    var pRadius = totalRadius \/ Math.sin(degree);\r\n\r\n    \/\/ \u7f13\u5b58\u7236\u4eb2\u8282\u70b9\u7684\u5e03\u5c40\u534a\u5f84\r\n    root.a('radius', pRadius);\r\n    \/\/ \u7f13\u5b58\u7236\u4eb2\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\r\n    root.a('totalRadius', pRadius + totalRadius);\r\n    \/\/ \u7f13\u5b58\u5176\u5b69\u5b50\u8282\u70b9\u7684\u5e03\u5c40\u5f20\u89d2\r\n    root.a('degree', degree * 2);\r\n}<\/pre>\n<\/div>\n
\u5728\u4ee3\u7801\u4e2d\u6211\u4eec\u5c06\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u7f13\u5b58\u8d77\u6765\uff0c\u4ece\u4e0b\u5f80\u4e0a\u4e00\u5c42\u4e00\u5c42\u5730\u53e0\u52a0\u4e0a\u53bb\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u4e00\u8d77\u9a8c\u8bc1\u5176\u6b63\u786e\u6027\uff1a<\/p>\n
\"\"<\/p>\n
\u641e\u5b9a\uff0c\u5c31\u662f\u8fd9\u6837\u5b50\u4e86\uff0c2D\u62d3\u6251<\/a>\u4e0a\u9762\u7684\u5e03\u5c40\u641e\u5b9a\u4e86\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u8be5\u51fa\u52a83D\u62d3\u6251\u5566~<\/p>\n
3. \u52a0\u5165z\u8f74\u5750\u6807\uff0c\u5448\u73b03D\u4e0b\u7684\u6811\u72b6\u7ed3\u6784<\/p>\n
3D\u62d3\u6251<\/a>\u4e0a\u9762\u5e03\u5c40\u65e0\u975e\u5c31\u662f\u591a\u52a0\u4e86\u4e00\u4e2a\u5750\u6807\u7cfb\uff0c\u800c\u4e14\u8fd9\u4e2a\u5750\u6807\u7cfb\u53ea\u662f\u63a7\u5236\u8282\u70b9\u7684\u9ad8\u5ea6\u800c\u5df2\uff0c\u5e76\u4e0d\u4f1a\u5f71\u54cd\u5230\u8282\u70b9\u4e4b\u95f4\u7684\u91cd\u53e0\uff0c\u6240\u4ee5\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u6539\u9020\u4e0b\u6211\u4eec\u7684\u7a0b\u5e8f\uff0c\u8ba9\u5176\u80fd\u591f\u57283D\u4e0a\u6b63\u5e38\u5e03\u5c40\u3002<\/p>\n
\u4e5f\u4e0d\u9700\u8981\u592a\u5927\u7684\u6539\u9020\uff0c\u6211\u4eec\u53ea\u9700\u8981\u4fee\u6539\u4e0b\u5e03\u5c40\u5668\u5e76\u4e14\u5c062D\u62d3\u6251<\/a>\u7ec4\u4ef6\u6539\u62103D\u62d3\u6251\u7ec4\u4ef6\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
\n
\/**\r\n * \u5e03\u5c40\u6811\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\r\n *\/\r\nfunction layout(root) {\r\n    \/\/ \u83b7\u53d6\u5230\u6240\u6709\u7684\u5b69\u5b50\u8282\u70b9\u5bf9\u8c61\u6570\u7ec4\r\n    var children = root.getChildren().toArray();\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u4e2a\u6570\r\n    var len = children.length;\r\n    \/\/ \u8ba1\u7b97\u5f20\u89d2\r\n    var degree = root.a('degree');\r\n    \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u7ed5\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\r\n    var r = root.a('radius');\r\n    \/\/ \u83b7\u53d6\u7236\u4eb2\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n    var rootPosition = root.p3();\r\n\r\n    children.forEach(function(child, index) {\r\n        \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u6bcf\u4e2a\u8282\u70b9\u76f8\u5bf9\u4e8e\u7236\u4eb2\u8282\u70b9\u7684\u504f\u79fb\u91cf\r\n        var s = Math.sin(degree * index),\r\n            c = Math.cos(degree * index),\r\n            x = s * r,\r\n            z = c * r;\r\n\r\n        \/\/ \u8bbe\u7f6e\u5b69\u5b50\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n        child.p3(x + rootPosition[0], rootPosition[1] - 100, z + rootPosition[2]);\r\n\r\n        \/\/ \u9012\u5f52\u8c03\u7528\u5e03\u5c40\u5b69\u5b50\u8282\u70b9\r\n        layout(child);\r\n    });\r\n}<\/pre>\n<\/div>\n
\u4e0a\u9762\u662f\u6539\u9020\u62103D\u5e03\u5c40\u540e\u7684\u5e03\u5c40\u5668\u4ee3\u7801\uff0c\u4f60\u4f1a\u53d1\u73b0\u548c2D\u7684\u5e03\u5c40\u5668\u4ee3\u7801\u5c31\u5dee\u4e00\u4e2a\u5750\u6807\u7cfb\u7684\u7684\u8ba1\u7b97\uff0c\u5176\u4ed6\u7684\u90fd\u4e00\u6837\uff0c\u770b\u4e0b\u57283D\u4e0a\u5e03\u5c40\u7684\u6548\u679c\uff1a<\/p>\n
\"\"<\/p>\n
\u6069\uff0c\u6709\u6a21\u6709\u6837\u7684\u4e86\uff0c\u5728\u6587\u7ae0\u7684\u5f00\u5934\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u6bcf\u4e00\u5c42\u7684\u8282\u70b9\u90fd\u6709\u4e0d\u540c\u7684\u989c\u8272\u53ca\u5927\u5c0f\uff0c\u8fd9\u4e9b\u90fd\u662f\u6bd4\u8f83\u7b80\u5355\uff0c\u5728\u8fd9\u91cc\u6211\u5c31\u4e0d\u505a\u6df1\u5165\u7684\u8bb2\u89e3\uff0c\u5177\u4f53\u7684\u4ee3\u7801\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n
\n
var level = 4,\r\n    size = (level + 1) * 20;\r\n\r\nvar root = createNode(dataModel);\r\nroot.setName('root');\r\nroot.p(100, 100);\r\n\r\nroot.s('shape3d', 'sphere');\r\nroot.s('shape3d.color', randomColor());\r\nroot.s3(size, size, size);\r\n\r\nvar colors = {},\r\n    sizes = {};\r\ncreateTreeNodes(dataModel, root, level - 1, 5, function(data, level, num) {\r\n    if (!colors[level]) {\r\n        colors[level] = randomColor();\r\n        sizes[level] = (level + 1) * 20;\r\n    }\r\n\r\n    size = sizes[level];\r\n\r\n    data.setName('item-' + level + '-' + num);\r\n    \/\/ \u8bbe\u7f6e\u8282\u70b9\u5f62\u72b6\u4e3a\u7403\u5f62\r\n    data.s('shape3d', 'sphere');\r\n    data.s('shape3d.color', colors[level]);\r\n    data.s3(size, size, size);\r\n});<\/pre>\n<\/div>\n
\u5728\u8fd9\u91cc\u5f15\u5165\u4e86\u4e00\u4e2a\u968f\u673a\u751f\u6210\u989c\u8272\u503c\u7684\u65b9\u6cd5\uff0c\u5bf9\u6bcf\u4e00\u5c42\u968f\u673a\u751f\u6210\u4e00\u79cd\u989c\u8272\uff0c\u5e76\u5c06\u8282\u70b9\u7684\u5f62\u72b6\u6539\u6210\u4e86\u7403\u5f62\uff0c\u8ba9\u9875\u9762\u770b\u8d77\u6765\u7f8e\u89c2\u4e9b\uff08\u5176\u5b9e\u5f88\u4e11\uff09\u3002<\/p>\n
\"\"<\/p>\n
\u63d0\u4e2a\u5916\u8bdd\uff0c\u8282\u70b9\u4e0a\u53ef\u4ee5\u8d34\u4e0a\u56fe\u7247\uff0c\u8fd8\u53ef\u4ee5\u8bbe\u7f6e\u6587\u5b57\u7684\u671d\u5411\uff0c\u53ef\u4ee5\u6839\u636e\u7528\u6237\u7684\u89c6\u89d2\u52a8\u6001\u8c03\u6574\u4f4d\u7f6e\uff0c\u7b49\u7b49\u4e00\u7cfb\u5217\u7684\u62d3\u5c55\uff0c\u8fd9\u4e9b\u5927\u5bb6\u90fd\u53ef\u4ee5\u53bb\u5c1d\u8bd5\uff0c\u76f8\u4fe1\u90fd\u53ef\u4ee5\u505a\u51fa\u4e00\u4e2a\u5f88\u6f02\u4eae\u76843D\u6811<\/a>\u51fa\u6765\u3002<\/p>\n
\u5230\u6b64\uff0c\u6574\u4e2aDemo\u7684\u5236\u4f5c\u5c31\u7ed3\u675f\u4e86\uff0c\u4eca\u5929\u7684\u7bc7\u5e45\u6709\u4e9b\u957f\uff0c\u611f\u8c22\u5927\u5bb6\u7684\u8010\u5fc3\u9605\u8bfb\uff0c\u5728\u8bbe\u8ba1\u4e0a\u6216\u5219\u662f\u8868\u8fbe\u4e0a\u6709\u4ec0\u4e48\u5efa\u8bae\u6216\u610f\u89c1\u6b22\u8fce\u5927\u5bb6\u63d0\u51fa\uff0c\u70b9\u51fb\u8fd9\u91cc<\/a>\u53ef\u4ee5\u8bbf\u95eeHT for Web<\/a>\u5b98\u7f51\u4e0a\u7684\u624b\u518c<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728HT for Web<\/a>\u4e2d2D\u548c3D\u5e94\u7528\u90fd\u652f\u6301\u6811\u72b6\u7ed3\u6784\u6570\u636e\u7684\u5c55\u793a\uff0c\u5c55\u73b0\u6548\u679c\u5404\u5f02\uff0c2D\u4e0a\u7684\u6811\u72b6\u7ed3\u6784\u5728\u5c55\u73b0\u5c42\u7ea7\u5173\u7cfb\u660e\u663e\uff0c\u4f46\u662f\u5982\u679c\u6570\u636e\u91cf\u5927\u7684\u8bdd\uff0c\u770b\u8d77\u6765\u5c31\u6ca1\u90a3\u4e48\u76f4\u89c2\uff0c\u627e\u5230\u6307\u5b9a\u7684\u8282\u70b9\u6bd4\u8f83\u56f0\u96be\uff0c\u800c3D\u4e0a\u7684\u6811\u72b6\u7ed3\u6784\u5728\u5c55\u73b0\u4e0a\u914d\u5408HT for Web<\/a>\u7684\u5f39\u529b\u5e03\u5c40\u7ec4\u4ef6\u4f1a\u663e\u5f97\u6bd4\u8f83\u76f4\u89c2\uff0c\u4e00\u773c\u671b\u53bb\u53ef\u4ee5\u628a\u6574\u4e2a\u6811\u72b6\u7ed3\u6784\u6570\u636e\u770b\u4e2a\u5927\u6982\uff0c\u4f46\u662f\u5728\u5f39\u529b\u5e03\u5c40\u7684\u4f5c\u7528\u4e0b\uff0c\u5176\u5c42\u6b21\u7ed3\u6784\u770b\u5f97\u5c31\u4e0d\u662f\u90a3\u4e48\u6e05\u6670\u4e86\u3002\u6240\u4ee5\u8fd9\u65f6\u5019\u7ed3\u6784\u6e05\u6670\u76843D\u6811\u7684\u9700\u6c42\u5c31\u6765\u4e86\uff0c\u90a3\u4e48\u8fd9\u4e2a3D\u6811<\/a>\u5177\u4f53\u957f\u6210\u5565\u6837\u5462\uff0c\u6211\u4eec\u6765\u4e00\u8d77\u76ee\u7779\u4e0b~<\/p>\n
\"\"<\/p>\n
 <\/p>\n
\u8981\u5b9e\u73b0\u8fd9\u6837\u7684\u6548\u679c\uff0c\u8be5\u4ece\u4f55\u4e0b\u624b\u5462\uff1f\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u5c06\u8fd9\u4e2a\u95ee\u9898\u62c6\u89e3\u6210\u82e5\u5e72\u4e2a\u5c0f\u95ee\u9898\u6765\u89e3\u51b3\u3002<\/p>\n
1. \u521b\u5efa\u4e00\u4e2a\u6811\u72b6\u7ed3\u6784<\/p>\n
\u6709\u4e86\u89e3\u8fc7HT for Web<\/a>\u7684\u670b\u53cb\uff0c\u5bf9\u6811\u72b6\u7ed3\u6784\u6570\u636e\u7684\u521b\u5efa\u5e94\u8be5\u90fd\u4e0d\u964c\u751f\uff0c\u5728\u8fd9\u91cc\u6211\u5c31\u4e0d\u505a\u6df1\u5165\u7684\u63a2\u8ba8\u4e86\u3002\u6811\u72b6\u7ed3\u6784\u6570\u636e\u7684\u521b\u5efa\u5f88\u7b80\u5355\uff0c\u5728\u8fd9\u91cc\u4e3a\u4e86\u8ba9\u4ee3\u7801\u66f4\u7b80\u6d01\uff0c\u6211\u5c01\u88c5\u4e86\u4e09\u4e2a\u65b9\u6cd5\u6765\u521b\u5efa\u6811\u72b6\u7ed3\u6784\u6570\u636e\uff0c\u5177\u4f53\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
\n
\/**\r\n * \u521b\u5efa\u8fde\u7ebf\r\n * @param {ht.DataModel} dataModel - \u6570\u636e\u5bb9\u5668\r\n * @param {ht.Node} source - \u8d77\u70b9\r\n * @param {ht.Node} target - \u7ec8\u70b9\r\n *\/\r\nfunction createEdge(dataModel, source, target) {\r\n    \/\/ \u521b\u5efa\u8fde\u7ebf\uff0c\u94fe\u63a5\u7236\u4eb2\u8282\u70b9\u53ca\u5b69\u5b50\u8282\u70b9\r\n    var edge = new ht.Edge();\r\n    edge.setSource(source);\r\n    edge.setTarget(target);\r\n    dataModel.add(edge);\r\n}\r\n\r\n\/**\r\n * \u521b\u5efa\u8282\u70b9\u5bf9\u8c61\r\n * @param {ht.DataModel} dataModel - \u6570\u636e\u5bb9\u5668\r\n * @param {ht.Node} [parent] - \u7236\u4eb2\u8282\u70b9\r\n * @returns {ht.Node} \u8282\u70b9\u5bf9\u8c61\r\n *\/\r\nfunction createNode(dataModel, parent) {\r\n    var node = new ht.Node();\r\n    if (parent) {\r\n        \/\/ \u8bbe\u7f6e\u7236\u4eb2\u8282\u70b9\r\n        node.setParent(parent);\r\n\r\n        createEdge(dataModel, parent, node);\r\n    }\r\n    \/\/ \u6dfb\u52a0\u5230\u6570\u636e\u5bb9\u5668\u4e2d\r\n    dataModel.add(node);\r\n    return node;\r\n}\r\n\r\n\/**\r\n * \u521b\u5efa\u7ed3\u6784\u6811\r\n * @param {ht.DataModel} dataModel - \u6570\u636e\u5bb9\u5668\r\n * @param {ht.Node} parent - \u7236\u4eb2\u8282\u70b9\r\n * @param {Number} level - \u6df1\u5ea6\r\n * @param {Array} count - \u6bcf\u5c42\u8282\u70b9\u4e2a\u6570\r\n * @param {function(ht.Node, Number, Number)} callback - \u56de\u8c03\u51fd\u6570(\u8282\u70b9\u5bf9\u8c61\uff0c\u8282\u70b9\u5bf9\u5e94\u7684\u5c42\u7ea7\uff0c\u8282\u70b9\u5728\u5c42\u7ea7\u4e2d\u7684\u7f16\u53f7)\r\n *\/\r\nfunction createTreeNodes(dataModel, parent, level, count, callback) {\r\n    level--;\r\n    var num = (typeof count === 'number' ? count : count[level]);\r\n\r\n    while (num--) {\r\n        var node = createNode(dataModel, parent);\r\n        \/\/ \u8c03\u7528\u56de\u8c03\u51fd\u6570\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u56de\u8c03\u91cc\u9762\u8bbe\u7f6e\u8282\u70b9\u76f8\u5173\u5c5e\u6027\r\n        callback(node, level, num);\r\n        if (level === 0) continue;\r\n        \/\/ \u9012\u5f52\u8c03\u7528\u521b\u5efa\u5b69\u5b50\u8282\u70b9\r\n        createTreeNodes(dataModel, node, level, count, callback);\r\n    }\r\n}<\/pre>\n<\/div>\n
\u563f\u563f\uff0c\u4ee3\u7801\u5199\u5f97\u53ef\u80fd\u6709\u4e9b\u590d\u6742\u4e86\uff0c\u7b80\u5355\u7684\u505a\u6cd5\u5c31\u662f\u5d4c\u5957\u51e0\u4e2afor\u5faa\u73af\u6765\u521b\u5efa\u6811\u72b6\u7ed3\u6784\u6570\u636e\uff0c\u5728\u8fd9\u91cc\u6211\u5c31\u4e0d\u591a\u8bf4\u4e86\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u63a2\u7a76\u7b2c\u4e8c\u4e2a\u95ee\u9898\u3002<\/p>\n
2. \u57282D\u62d3\u6251<\/a>\u4e0b\u6a21\u62df3D\u6811<\/a>\u72b6\u7ed3\u6784\u6bcf\u5c42\u7684\u534a\u5f84\u8ba1\u7b97<\/p>\n
\u57283D\u4e0b\u7684\u6811\u72b6\u7ed3\u6784\u4f53\u6700\u5927\u7684\u95ee\u9898\u5c31\u5728\u4e8e\uff0c\u6bcf\u4e2a\u8282\u70b9\u7684\u5c42\u6b21\u53ca\u6bcf\u5c42\u8282\u70b9\u56f4\u7ed5\u5176\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\u8ba1\u7b97\u3002\u73b0\u5728\u6811\u72b6\u7ed3\u6784\u6570\u636e\u5df2\u7ecf\u6709\u4e86\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u5c31\u8be5\u5f00\u59cb\u8ba1\u7b97\u534a\u5f84\u4e86\uff0c\u6211\u4eec\u4ece\u4e24\u5c42\u6811\u72b6\u7ed3\u6784\u5f00\u59cb\u63a8\u7b97\uff1a<\/p>\n
\"\"<\/p>\n
 <\/p>\n
\u6211\u73b0\u5728\u5148\u521b\u5efa\u4e86\u4e24\u5c42\u7684\u6811\u72b6\u7ed3\u6784\uff0c\u6240\u6709\u7684\u5b50\u8282\u70b9\u662f\u4e00\u5b57\u6392\u5f00\uff0c\u5e76\u6ca1\u6709\u73af\u7ed5\u5176\u7236\u4eb2\u8282\u70b9\uff0c\u90a3\u4e48\u6211\u4eec\u8be5\u5982\u4f55\u53bb\u786e\u5b9a\u8fd9\u4e9b\u5b69\u5b50\u8282\u70b9\u7684\u4f4d\u7f6e\u5462\uff1f<\/p>\n
\u9996\u5148\u6211\u4eec\u5f97\u77e5\u9053\uff0c\u6bcf\u4e2a\u672b\u7aef\u8282\u70b9\u90fd\u6709\u4e00\u5708\u5c5e\u4e8e\u81ea\u5df1\u7684\u9886\u57df\uff0c\u4e0d\u7136\u8282\u70b9\u4e0e\u8282\u70b9\u4e4b\u95f4\u5c06\u4f1a\u5b58\u5728\u91cd\u53e0\u7684\u60c5\u51b5\uff0c\u6240\u4ee5\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5047\u5b9a\u672b\u7aef\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u4e3a25\uff0c\u90a3\u4e48\u4e24\u4e2a\u76f8\u90bb\u8282\u70b9\u4e4b\u95f4\u7684\u6700\u77ed\u8ddd\u79bb\u5c06\u662f\u4e24\u500d\u7684\u8282\u70b9\u9886\u57df\u534a\u5f84\uff0c\u4e5f\u5c31\u662f50\uff0c\u800c\u8fd9\u4e9b\u672b\u7aef\u8282\u70b9\u5c06\u5747\u5300\u5730\u56f4\u7ed5\u5728\u5176\u7236\u4eb2\u8282\u70b9\u56db\u5468\uff0c\u90a3\u4e48\u76f8\u90bb\u4e24\u4e2a\u8282\u70b9\u7684\u5f20\u89d2\u5c31\u53ef\u4ee5\u786e\u8ba4\u51fa\u6765\uff0c\u6709\u4e86\u5f20\u89d2\uff0c\u6709\u4e86\u4e24\u70b9\u95f4\u7684\u8ddd\u79bb\uff0c\u90a3\u4e48\u8282\u70b9\u7ed5\u5176\u7236\u4eb2\u8282\u70b9\u7684\u6700\u77ed\u534a\u5f84\u4e5f\u5c31\u80fd\u8ba1\u7b97\u51fa\u6765\u4e86\uff0c\u5047\u8bbe\u5f20\u89d2\u4e3aa\uff0c\u4e24\u70b9\u95f4\u6700\u5c0f\u8ddd\u79bb\u4e3ab\uff0c\u90a3\u4e48\u6700\u5c0f\u534a\u5f84r\u7684\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1a<\/p>\n
r = b \/ 2 \/ sin(a \/ 2);<\/p>\n
\u90a3\u4e48\u63a5\u4e0b\u6765\u6211\u4e48\u5c31\u6765\u5e03\u5c40\u4e0b\u8fd9\u4e2a\u6811\uff0c\u4ee3\u7801\u662f\u8fd9\u6837\u5199\u7684\uff1a<\/p>\n
\n
\/**\r\n * \u5e03\u5c40\u6811\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\r\n * @param {Number} [minR] - \u672b\u7aef\u8282\u70b9\u7684\u6700\u5c0f\u534a\u5f84\r\n *\/\r\nfunction layout(root, minR) {\r\n    \/\/ \u8bbe\u7f6e\u9ed8\u8ba4\u534a\u5f84\r\n    minR = (minR == null ? 25 : minR);\r\n    \/\/ \u83b7\u53d6\u5230\u6240\u6709\u7684\u5b69\u5b50\u8282\u70b9\u5bf9\u8c61\u6570\u7ec4\r\n    var children = root.getChildren().toArray();\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u4e2a\u6570\r\n    var len = children.length;\r\n    \/\/ \u8ba1\u7b97\u5f20\u89d2\r\n    var degree = Math.PI * 2 \/ len;\r\n    \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u7ed5\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\r\n    var sin = Math.sin(degree \/ 2),\r\n        r = minR \/ sin;\r\n    \/\/ \u83b7\u53d6\u7236\u4eb2\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n    var rootPosition = root.p();\r\n\r\n    children.forEach(function(child, index) {\r\n        \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u6bcf\u4e2a\u8282\u70b9\u76f8\u5bf9\u4e8e\u7236\u4eb2\u8282\u70b9\u7684\u504f\u79fb\u91cf\r\n        var s = Math.sin(degree * index),\r\n            c = Math.cos(degree * index),\r\n            x = s * r,\r\n            y = c * r;\r\n\r\n        \/\/ \u8bbe\u7f6e\u5b69\u5b50\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n        child.p(x + rootPosition.x, y + rootPosition.y);\r\n    });\r\n}<\/pre>\n<\/div>\n
\u5728\u4ee3\u7801\u4e2d\uff0c\u4f60\u4f1a\u53d1\u73b0\u6211\u5c06\u672b\u7aef\u534a\u5f84\u9ed8\u8ba4\u8bbe\u7f6e\u4e3a25\u4e86\uff0c\u5982\u6b64\uff0c\u6211\u4eec\u901a\u8fc7\u8c03\u7528layout()\u65b9\u6cd5\u5c31\u53ef\u4ee5\u5bf9\u7ed3\u6784\u6811\u8fdb\u884c\u5e03\u5c40\u4e86\uff0c\u5176\u5e03\u5c40\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n
\"\"<\/p>\n
\u4ece\u6548\u679c\u56fe\u53ef\u4ee5\u770b\u5f97\u51fa\uff0c\u672b\u7aef\u8282\u70b9\u7684\u9ed8\u8ba4\u534a\u5f84\u5e76\u4e0d\u662f\u5f88\u7406\u60f3\uff0c\u5e03\u5c40\u51fa\u6765\u7684\u6548\u679c\u8fde\u7ebf\u90fd\u5feb\u770b\u4e0d\u5230\u4e86\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u589e\u52a0\u672b\u7aef\u8282\u70b9\u7684\u9ed8\u8ba4\u534a\u5f84\u6765\u89e3\u51b3\u5e03\u5c40\u592a\u5bc6\u7684\u95ee\u9898\uff0c\u5982\u5c06\u9ed8\u8ba4\u534a\u5f84\u8bbe\u7f6e\u621040\u7684\u6548\u679c\u56fe\u5982\u4e0b:<\/p>\n
\"\"<\/p>\n
\u73b0\u5728\u4e24\u5c42\u7684\u6811\u72b6\u5206\u5e03\u89e3\u51b3\u4e86\uff0c\u90a3\u4e48\u6211\u4eec\u6765\u770b\u770b\u4e09\u5c42\u7684\u6811\u72b6\u5206\u5e03\u8be5\u5982\u4f55\u5904\u7406\u3002<\/p>\n
\u5c06\u7b2c\u4e8c\u5c42\u548c\u7b2c\u4e09\u5c42\u770b\u6210\u4e00\u4e2a\u6574\u4f53\uff0c\u90a3\u4e48\u5176\u5b9e\u4e09\u5c42\u7684\u6811\u72b6\u7ed3\u6784\u8ddf\u4e24\u5c42\u662f\u4e00\u6837\u7684\uff0c\u4e0d\u540c\u7684\u662f\u5728\u5904\u7406\u7b2c\u4e8c\u5c42\u8282\u70b9\u65f6\uff0c\u5e94\u8be5\u5c06\u5176\u770b\u505a\u4e00\u4e2a\u4e24\u5c42\u7684\u6811\u72b6\u7ed3\u6784\u6765\u5904\u7406\uff0c\u90a3\u4e48\u50cf\u8fd9\u79cd\u89c4\u5f8b\u7684\u5904\u7406\u7528\u9012\u5f52\u6700\u597d\u4e0d\u8fc7\u4e86\uff0c\u56e0\u6b64\u6211\u4eec\u5c06\u4ee3\u7801\u7a0d\u5fae\u8be5\u7740\u4e0b\uff0c\u5728\u770b\u770b\u6548\u679c\u5982\u4f55\uff1a<\/p>\n
\"\"<\/p>\n
\u4e0d\u884c\uff0c\u8282\u70b9\u90fd\u91cd\u53e0\u5728\u4e00\u8d77\u4e86\uff0c\u770b\u6765\u7b80\u5355\u7684\u9012\u5f52\u662f\u4e0d\u884c\u7684\uff0c\u90a3\u4e48\u5177\u4f53\u7684\u95ee\u9898\u51fa\u5728\u54ea\u91cc\u5462\uff1f<\/p>\n
\u4ed4\u7ec6\u5206\u6790\u4e86\u4e0b\uff0c\u53d1\u73b0\u7236\u4eb2\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u662f\u7531\u5176\u5b69\u5b50\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u51b3\u5b9a\u7684\uff0c\u56e0\u6b64\u5728\u5e03\u5c40\u65f6\u9700\u8981\u77e5\u9053\u81ea\u8eab\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\uff0c\u800c\u4e14\u8282\u70b9\u7684\u4f4d\u7f6e\u53d6\u51b3\u4e8e\u7236\u4eb2\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u53ca\u4f4d\u7f6e\u4fe1\u606f\uff0c\u8fd9\u6837\u4e00\u6765\u5c31\u65e0\u6cd5\u8fb9\u8ba1\u7b97\u534a\u5f84\u8fb9\u5e03\u5c40\u8282\u70b9\u4f4d\u7f6e\u4e86\u3002<\/p>\n
\u90a3\u4e48\u73b0\u5728\u53ea\u80fd\u5c06\u534a\u5f84\u7684\u8ba1\u7b97\u548c\u5e03\u5c40\u5206\u5f00\u6765\uff0c\u505a\u4e24\u6b65\u64cd\u4f5c\u4e86\uff0c\u6211\u4eec\u5148\u6765\u5206\u6790\u4e0b\u8282\u70b9\u534a\u5f84\u7684\u8ba1\u7b97\uff1a<\/p>\n
\u9996\u5148\u9700\u8981\u660e\u786e\u6700\u5173\u952e\u7684\u6761\u4ef6\uff0c\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\u53d6\u51b3\u4e8e\u5176\u5b69\u5b50\u8282\u70b9\u7684\u534a\u5f84\uff0c\u8fd9\u4e2a\u6761\u4ef6\u544a\u8bc9\u6211\u4eec\uff0c\u53ea\u80fd\u4ece\u4e0b\u5f80\u4e0a\u8ba1\u7b97\u8282\u70b9\u534a\u5f84\uff0c\u56e0\u6b64\u6211\u4eec\u8bbe\u8ba1\u7684\u9012\u5f52\u51fd\u6570\u5fc5\u987b\u662f\u5148\u9012\u5f52\u540e\u8ba1\u7b97\uff0c\u5e9f\u8bdd\u4e0d\u591a\u8bf4\uff0c\u6211\u4eec\u6765\u770b\u4e0b\u5177\u4f53\u7684\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n
\n
\/**\r\n * \u5c31\u6309\u8282\u70b9\u9886\u57df\u534a\u5f84\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\u5bf9\u8c61\r\n * @param {Number} minR - \u6700\u5c0f\u534a\u5f84\r\n *\/\r\nfunction countRadius(root, minR) {\r\n    minR = (minR == null ? 25 : minR);\r\n\r\n    \/\/ \u82e5\u679c\u662f\u672b\u7aef\u8282\u70b9\uff0c\u5219\u8bbe\u7f6e\u5176\u534a\u5f84\u4e3a\u6700\u5c0f\u534a\u5f84\r\n    if (!root.hasChildren()) {\r\n        root.a('radius', minR);\r\n        return;\r\n    }\r\n\r\n    \/\/ \u904d\u5386\u5b69\u5b50\u8282\u70b9\u9012\u5f52\u8ba1\u7b97\u534a\u5f84\r\n    var children = root.getChildren();\r\n    children.each(function(child) {\r\n        countRadius(child, minR);\r\n    });\r\n\r\n    var child0 = root.getChildAt(0);\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u534a\u5f84\r\n    var radius = child0.a('radius');\r\n\r\n    \/\/ \u8ba1\u7b97\u5b50\u8282\u70b9\u76841\/2\u5f20\u89d2\r\n    var degree = Math.PI \/ children.size();\r\n    \/\/ \u8ba1\u7b97\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\r\n    var pRadius = radius \/ Math.sin(degree);\r\n\r\n    \/\/ \u8bbe\u7f6e\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\u53ca\u5176\u5b69\u5b50\u8282\u70b9\u7684\u5e03\u5c40\u5f20\u89d2\r\n    root.a('radius', pRadius);\r\n    root.a('degree', degree * 2);\r\n}<\/pre>\n<\/div>\n
OK\uff0c\u534a\u5f84\u7684\u8ba1\u7b97\u89e3\u51b3\u4e86\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u5c31\u8be5\u89e3\u51b3\u5e03\u5c40\u95ee\u9898\u4e86\uff0c\u5e03\u5c40\u6811\u72b6\u7ed3\u6784\u6570\u636e\u9700\u8981\u660e\u786e\uff1a\u5b69\u5b50\u8282\u70b9\u7684\u5750\u6807\u4f4d\u7f6e\u53d6\u51b3\u4e8e\u5176\u7236\u4eb2\u8282\u70b9\u7684\u5750\u6807\u4f4d\u7f6e\uff0c\u56e0\u6b64\u5e03\u5c40\u7684\u9012\u5f52\u65b9\u5f0f\u548c\u8ba1\u7b97\u534a\u5f84\u7684\u9012\u5f52\u65b9\u5f0f\u4e0d\u540c\uff0c\u6211\u4eec\u9700\u8981\u5148\u5e03\u5c40\u7236\u4eb2\u8282\u70b9\u518d\u9012\u5f52\u5e03\u5c40\u5b69\u5b50\u8282\u70b9\uff0c\u5177\u4f53\u770b\u770b\u4ee3\u7801\u5427\uff1a<\/p>\n
\n
\/**\r\n * \u5e03\u5c40\u6811\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\r\n *\/\r\nfunction layout(root) {\r\n    \/\/ \u83b7\u53d6\u5230\u6240\u6709\u7684\u5b69\u5b50\u8282\u70b9\u5bf9\u8c61\u6570\u7ec4\r\n    var children = root.getChildren().toArray();\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u4e2a\u6570\r\n    var len = children.length;\r\n    \/\/ \u8ba1\u7b97\u5f20\u89d2\r\n    var degree = root.a('degree');\r\n    \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u7ed5\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\r\n    var r = root.a('radius');\r\n    \/\/ \u83b7\u53d6\u7236\u4eb2\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n    var rootPosition = root.p();\r\n\r\n    children.forEach(function(child, index) {\r\n        \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u6bcf\u4e2a\u8282\u70b9\u76f8\u5bf9\u4e8e\u7236\u4eb2\u8282\u70b9\u7684\u504f\u79fb\u91cf\r\n        var s = Math.sin(degree * index),\r\n            c = Math.cos(degree * index),\r\n            x = s * r,\r\n            y = c * r;\r\n\r\n        \/\/ \u8bbe\u7f6e\u5b69\u5b50\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n        child.p(x + rootPosition.x, y + rootPosition.y);\r\n\r\n        \/\/ \u9012\u5f52\u8c03\u7528\u5e03\u5c40\u5b69\u5b50\u8282\u70b9\r\n        layout(child);\r\n    });\r\n}<\/pre>\n<\/div>\n
\u4ee3\u7801\u5199\u5b8c\u4e86\uff0c\u63a5\u4e0b\u6765\u5c31\u662f\u89c1\u8bc1\u5947\u8ff9\u7684\u65f6\u523b\u4e86\uff0c\u6211\u4eec\u6765\u770b\u770b\u6548\u679c\u56fe\u5427\uff1a<\/p>\n
\"\"<\/p>\n
\u4e0d\u5bf9\u5440\uff0c\u4ee3\u7801\u5e94\u8be5\u662f\u6ca1\u95ee\u9898\u7684\u5440\uff0c\u4e3a\u4ec0\u4e48\u663e\u793a\u51fa\u6765\u7684\u6548\u679c\u8fd8\u662f\u4f1a\u91cd\u53e0\u5462\uff1f\u4e0d\u8fc7\u4ed4\u7ec6\u89c2\u5bdf\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\u76f8\u6bd4\u4e0a\u4e2a\u7248\u672c\u7684\u5e03\u5c40\u4f1a\u597d\u5f88\u591a\uff0c\u81f3\u5c11\u8fd9\u6b21\u53ea\u662f\u672b\u7aef\u8282\u70b9\u91cd\u53e0\u4e86\uff0c\u90a3\u4e48\u95ee\u9898\u51fa\u5728\u54ea\u91cc\u5462\uff1f<\/p>\n
\u4e0d\u77e5\u9053\u5927\u5bb6\u6709\u6ca1\u6709\u53d1\u73b0\uff0c\u6392\u9664\u8282\u70b9\u81ea\u8eab\u7684\u5927\u5c0f\uff0c\u5012\u6570\u7b2c\u4e8c\u5c42\u8282\u70b9\u4e0e\u8282\u70b9\u4e4b\u95f4\u7684\u9886\u57df\u662f\u76f8\u5207\u7684\uff0c\u90a3\u4e48\u4e5f\u5c31\u662f\u8bf4\u8282\u70b9\u7684\u534a\u5f84\u4e0d\u4ec5\u548c\u5176\u5b69\u5b50\u8282\u70b9\u7684\u534a\u5f84\u6709\u5173\uff0c\u8fd8\u4e0e\u5176\u5b59\u5b50\u8282\u70b9\u7684\u534a\u5f84\u6709\u5173\uff0c\u90a3\u6211\u4eec\u628a\u8ba1\u7b97\u8282\u70b9\u534a\u5f84\u7684\u65b9\u6cd5\u6539\u9020\u4e0b\uff0c\u5c06\u5b59\u5b50\u8282\u70b9\u7684\u534a\u5f84\u4e5f\u8003\u8651\u8fdb\u53bb\u518d\u770b\u770b\u6548\u679c\u5982\u4f55\uff0c\u6539\u9020\u540e\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
\n
\/**\r\n * \u5c31\u6309\u8282\u70b9\u9886\u57df\u534a\u5f84\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\u5bf9\u8c61\r\n * @param {Number} minR - \u6700\u5c0f\u534a\u5f84\r\n *\/\r\nfunction countRadius(root, minR) {\r\n   \u2026\u2026\r\n\r\n    var child0 = root.getChildAt(0);\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u534a\u5f84\r\n    var radius = child0.a('radius');\r\n\r\n    var child00 = child0.getChildAt(0);\r\n    \/\/ \u534a\u5f84\u52a0\u4e0a\u5b59\u5b50\u8282\u70b9\u534a\u5f84\uff0c\u907f\u514d\u8282\u70b9\u91cd\u53e0\r\n    if (child00) radius += child00.a('radius');\r\n\r\n   \u2026\u2026\r\n}<\/pre>\n<\/div>\n
\u4e0b\u9762\u5c31\u6765\u770b\u770b\u6548\u679c\u5427~<\/p>\n
\"\"<\/p>\n
\u54c8\u54c8\uff0c\u770b\u6765\u6211\u4eec\u5206\u6790\u5bf9\u4e86\uff0c\u679c\u7136\u5c31\u4e0d\u518d\u91cd\u53e0\u4e86\uff0c\u90a3\u6211\u4eec\u6765\u770b\u770b\u518d\u591a\u4e00\u5c42\u8282\u70b9\u4f1a\u662f\u600e\u4e48\u6837\u7684\u58ee\u89c2\u573a\u666f\u5462\uff1f<\/p>\n
\"\"<\/p>\n
\u54e6\uff0cNO\uff01\u8fd9\u4e0d\u662f\u6211\u60f3\u770b\u5230\u7684\u6548\u679c\uff0c\u53c8\u91cd\u53e0\u4e86\uff0c\u597d\u8ba8\u538c\u3002<\/p>\n
\u4e0d\u8981\u7740\u6025\uff0c\u6211\u4eec\u518d\u6765\u4ed4\u7ec6\u5206\u6790\u5206\u6790\u4e0b\uff0c\u5728\u524d\u9762\uff0c\u6211\u4eec\u63d0\u5230\u8fc7\u4e00\u4e2a\u540d\u8bcd\u2014\u2014\u9886\u57df\u534a\u5f84\uff0c\u4ec0\u4e48\u662f\u9886\u57df\u534a\u5f84\u5462\uff1f\u5f88\u7b80\u5355\uff0c\u5c31\u662f\u53ef\u4ee5\u5bb9\u7eb3\u4e0b\u81ea\u8eab\u53ca\u5176\u6240\u6709\u5b69\u5b50\u8282\u70b9\u7684\u6700\u5c0f\u534a\u5f84\uff0c\u90a3\u4e48\u95ee\u9898\u5c31\u6765\u4e86\uff0c\u672b\u7aef\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u4e3a\u6211\u4eec\u6307\u5b9a\u7684\u6700\u5c0f\u534a\u5f84\uff0c\u90a3\u4e48\u5012\u6570\u7b2c\u4e8c\u5c42\u7684\u9886\u57df\u534a\u5f84\u662f\u591a\u5c11\u5462\uff1f\u5e76\u4e0d\u662f\u6211\u4eec\u524d\u9762\u8ba1\u7b97\u51fa\u6765\u7684\u534a\u5f84\uff0c\u800c\u5e94\u8be5\u52a0\u4e0a\u672b\u7aef\u8282\u70b9\u81ea\u8eab\u7684\u9886\u57df\u534a\u5f84\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u7740\u5305\u542b\u5173\u7cfb\uff0c\u5b50\u8282\u70b9\u7684\u9886\u57df\u5fc5\u987b\u5305\u542b\u4e8e\u5176\u7236\u4eb2\u8282\u70b9\u7684\u9886\u57df\u4e2d\uff0c\u90a3\u6211\u4eec\u5728\u770b\u770b\u4e0a\u56fe\uff0c\u662f\u4e0d\u662f\u611f\u89c9\u672b\u7aef\u8282\u70b9\u7684\u9886\u57df\u88ab\u4fb5\u5360\u4e86\u3002\u90a3\u4e48\u6211\u4eec\u524d\u9762\u8ba1\u7b97\u51fa\u6765\u7684\u534a\u5f84\u4ee3\u8868\u7740\u4ec0\u4e48\u5462\uff1f\u524d\u9762\u8ba1\u7b97\u51fa\u6765\u7684\u534a\u5f84\u5176\u5b9e\u4ee3\u8868\u7740\u5b69\u5b50\u8282\u70b9\u7684\u5e03\u5c40\u534a\u5f84\uff0c\u5728\u5e03\u5c40\u7684\u65f6\u5019\u662f\u901a\u8fc7\u8be5\u534a\u5f84\u6765\u5e03\u5c40\u7684\u3002<\/p>\n
OK\uff0c\u90a3\u6211\u4eec\u6765\u603b\u7ed3\u4e0b\uff0c\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u662f\u5176\u4e0b\u6bcf\u5c42\u8282\u70b9\u7684\u5e03\u5c40\u534a\u5f84\u4e4b\u548c\uff0c\u800c\u5e03\u5c40\u534a\u5f84\u9700\u8981\u6839\u636e\u5176\u5b69\u5b50\u8282\u70b9\u4e2a\u6570\u53ca\u5176\u9886\u57df\u534a\u5f84\u5171\u540c\u51b3\u5b9a\u3002<\/p>\n
\u597d\u4e86\uff0c\u6211\u4eec\u73b0\u5728\u77e5\u9053\u95ee\u9898\u7684\u6240\u5728\u4e86\uff0c\u90a3\u4e48\u6211\u4eec\u7684\u4ee3\u7801\u8be5\u5982\u4f55\u53bb\u5b9e\u73b0\u5462\uff1f\u63a5\u7740\u5f80\u4e0b\u770b\uff1a<\/p>\n
\n
\/**\r\n * \u5c31\u6309\u8282\u70b9\u9886\u57df\u534a\u5f84\u53ca\u5e03\u5c40\u534a\u5f84\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\u5bf9\u8c61\r\n * @param {Number} minR - \u6700\u5c0f\u534a\u5f84\r\n *\/\r\nfunction countRadius(root, minR) {\r\n    minR = (minR == null ? 25 : minR);\r\n\r\n    \/\/ \u82e5\u679c\u662f\u672b\u7aef\u8282\u70b9\uff0c\u5219\u8bbe\u7f6e\u5176\u5e03\u5c40\u534a\u5f84\u53ca\u9886\u57df\u534a\u5f84\u4e3a\u6700\u5c0f\u534a\u5f84\r\n    if (!root.hasChildren()) {\r\n        root.a('radius', minR);\r\n        root.a('totalRadius', minR);\r\n        return;\r\n    }\r\n\r\n    \/\/ \u904d\u5386\u5b69\u5b50\u8282\u70b9\u9012\u5f52\u8ba1\u7b97\u534a\u5f84\r\n    var children = root.getChildren();\r\n    children.each(function(child) {\r\n        countRadius(child, minR);\r\n    });\r\n\r\n    var child0 = root.getChildAt(0);\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u534a\u5f84\r\n    var radius = child0.a('radius'),\r\n        totalRadius = child0.a('totalRadius');\r\n\r\n    \/\/ \u8ba1\u7b97\u5b50\u8282\u70b9\u76841\/2\u5f20\u89d2\r\n    var degree = Math.PI \/ children.size();\r\n    \/\/ \u8ba1\u7b97\u7236\u4eb2\u8282\u70b9\u7684\u5e03\u5c40\u534a\u5f84\r\n    var pRadius = totalRadius \/ Math.sin(degree);\r\n\r\n    \/\/ \u7f13\u5b58\u7236\u4eb2\u8282\u70b9\u7684\u5e03\u5c40\u534a\u5f84\r\n    root.a('radius', pRadius);\r\n    \/\/ \u7f13\u5b58\u7236\u4eb2\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\r\n    root.a('totalRadius', pRadius + totalRadius);\r\n    \/\/ \u7f13\u5b58\u5176\u5b69\u5b50\u8282\u70b9\u7684\u5e03\u5c40\u5f20\u89d2\r\n    root.a('degree', degree * 2);\r\n}<\/pre>\n<\/div>\n
\u5728\u4ee3\u7801\u4e2d\u6211\u4eec\u5c06\u8282\u70b9\u7684\u9886\u57df\u534a\u5f84\u7f13\u5b58\u8d77\u6765\uff0c\u4ece\u4e0b\u5f80\u4e0a\u4e00\u5c42\u4e00\u5c42\u5730\u53e0\u52a0\u4e0a\u53bb\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u4e00\u8d77\u9a8c\u8bc1\u5176\u6b63\u786e\u6027\uff1a<\/p>\n
\"\"<\/p>\n
\u641e\u5b9a\uff0c\u5c31\u662f\u8fd9\u6837\u5b50\u4e86\uff0c2D\u62d3\u6251<\/a>\u4e0a\u9762\u7684\u5e03\u5c40\u641e\u5b9a\u4e86\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u8be5\u51fa\u52a83D\u62d3\u6251\u5566~<\/p>\n
3. \u52a0\u5165z\u8f74\u5750\u6807\uff0c\u5448\u73b03D\u4e0b\u7684\u6811\u72b6\u7ed3\u6784<\/p>\n
3D\u62d3\u6251<\/a>\u4e0a\u9762\u5e03\u5c40\u65e0\u975e\u5c31\u662f\u591a\u52a0\u4e86\u4e00\u4e2a\u5750\u6807\u7cfb\uff0c\u800c\u4e14\u8fd9\u4e2a\u5750\u6807\u7cfb\u53ea\u662f\u63a7\u5236\u8282\u70b9\u7684\u9ad8\u5ea6\u800c\u5df2\uff0c\u5e76\u4e0d\u4f1a\u5f71\u54cd\u5230\u8282\u70b9\u4e4b\u95f4\u7684\u91cd\u53e0\uff0c\u6240\u4ee5\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u6539\u9020\u4e0b\u6211\u4eec\u7684\u7a0b\u5e8f\uff0c\u8ba9\u5176\u80fd\u591f\u57283D\u4e0a\u6b63\u5e38\u5e03\u5c40\u3002<\/p>\n
\u4e5f\u4e0d\u9700\u8981\u592a\u5927\u7684\u6539\u9020\uff0c\u6211\u4eec\u53ea\u9700\u8981\u4fee\u6539\u4e0b\u5e03\u5c40\u5668\u5e76\u4e14\u5c062D\u62d3\u6251<\/a>\u7ec4\u4ef6\u6539\u62103D\u62d3\u6251\u7ec4\u4ef6\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
\n
\/**\r\n * \u5e03\u5c40\u6811\r\n * @param {ht.Node} root - \u6839\u8282\u70b9\r\n *\/\r\nfunction layout(root) {\r\n    \/\/ \u83b7\u53d6\u5230\u6240\u6709\u7684\u5b69\u5b50\u8282\u70b9\u5bf9\u8c61\u6570\u7ec4\r\n    var children = root.getChildren().toArray();\r\n    \/\/ \u83b7\u53d6\u5b69\u5b50\u8282\u70b9\u4e2a\u6570\r\n    var len = children.length;\r\n    \/\/ \u8ba1\u7b97\u5f20\u89d2\r\n    var degree = root.a('degree');\r\n    \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u7ed5\u7236\u4eb2\u8282\u70b9\u7684\u534a\u5f84\r\n    var r = root.a('radius');\r\n    \/\/ \u83b7\u53d6\u7236\u4eb2\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n    var rootPosition = root.p3();\r\n\r\n    children.forEach(function(child, index) {\r\n        \/\/ \u6839\u636e\u4e09\u89d2\u51fd\u6570\u8ba1\u7b97\u6bcf\u4e2a\u8282\u70b9\u76f8\u5bf9\u4e8e\u7236\u4eb2\u8282\u70b9\u7684\u504f\u79fb\u91cf\r\n        var s = Math.sin(degree * index),\r\n            c = Math.cos(degree * index),\r\n            x = s * r,\r\n            z = c * r;\r\n\r\n        \/\/ \u8bbe\u7f6e\u5b69\u5b50\u8282\u70b9\u7684\u4f4d\u7f6e\u5750\u6807\r\n        child.p3(x + rootPosition[0], rootPosition[1] - 100, z + rootPosition[2]);\r\n\r\n        \/\/ \u9012\u5f52\u8c03\u7528\u5e03\u5c40\u5b69\u5b50\u8282\u70b9\r\n        layout(child);\r\n    });\r\n}<\/pre>\n<\/div>\n
\u4e0a\u9762\u662f\u6539\u9020\u62103D\u5e03\u5c40\u540e\u7684\u5e03\u5c40\u5668\u4ee3\u7801\uff0c\u4f60\u4f1a\u53d1\u73b0\u548c2D\u7684\u5e03\u5c40\u5668\u4ee3\u7801\u5c31\u5dee\u4e00\u4e2a\u5750\u6807\u7cfb\u7684\u7684\u8ba1\u7b97\uff0c\u5176\u4ed6\u7684\u90fd\u4e00\u6837\uff0c\u770b\u4e0b\u57283D\u4e0a\u5e03\u5c40\u7684\u6548\u679c\uff1a<\/p>\n
\"\"<\/p>\n
\u6069\uff0c\u6709\u6a21\u6709\u6837\u7684\u4e86\uff0c\u5728\u6587\u7ae0\u7684\u5f00\u5934\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u6bcf\u4e00\u5c42\u7684\u8282\u70b9\u90fd\u6709\u4e0d\u540c\u7684\u989c\u8272\u53ca\u5927\u5c0f\uff0c\u8fd9\u4e9b\u90fd\u662f\u6bd4\u8f83\u7b80\u5355\uff0c\u5728\u8fd9\u91cc\u6211\u5c31\u4e0d\u505a\u6df1\u5165\u7684\u8bb2\u89e3\uff0c\u5177\u4f53\u7684\u4ee3\u7801\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n
\n
var level = 4,\r\n    size = (level + 1) * 20;\r\n\r\nvar root = createNode(dataModel);\r\nroot.setName('root');\r\nroot.p(100, 100);\r\n\r\nroot.s('shape3d', 'sphere');\r\nroot.s('shape3d.color', randomColor());\r\nroot.s3(size, size, size);\r\n\r\nvar colors = {},\r\n    sizes = {};\r\ncreateTreeNodes(dataModel, root, level - 1, 5, function(data, level, num) {\r\n    if (!colors[level]) {\r\n        colors[level] = randomColor();\r\n        sizes[level] = (level + 1) * 20;\r\n    }\r\n\r\n    size = sizes[level];\r\n\r\n    data.setName('item-' + level + '-' + num);\r\n    \/\/ \u8bbe\u7f6e\u8282\u70b9\u5f62\u72b6\u4e3a\u7403\u5f62\r\n    data.s('shape3d', 'sphere');\r\n    data.s('shape3d.color', colors[level]);\r\n    data.s3(size, size, size);\r\n});<\/pre>\n<\/div>\n
\u5728\u8fd9\u91cc\u5f15\u5165\u4e86\u4e00\u4e2a\u968f\u673a\u751f\u6210\u989c\u8272\u503c\u7684\u65b9\u6cd5\uff0c\u5bf9\u6bcf\u4e00\u5c42\u968f\u673a\u751f\u6210\u4e00\u79cd\u989c\u8272\uff0c\u5e76\u5c06\u8282\u70b9\u7684\u5f62\u72b6\u6539\u6210\u4e86\u7403\u5f62\uff0c\u8ba9\u9875\u9762\u770b\u8d77\u6765\u7f8e\u89c2\u4e9b\uff08\u5176\u5b9e\u5f88\u4e11\uff09\u3002<\/p>\n
\"\"<\/p>\n
\u63d0\u4e2a\u5916\u8bdd\uff0c\u8282\u70b9\u4e0a\u53ef\u4ee5\u8d34\u4e0a\u56fe\u7247\uff0c\u8fd8\u53ef\u4ee5\u8bbe\u7f6e\u6587\u5b57\u7684\u671d\u5411\uff0c\u53ef\u4ee5\u6839\u636e\u7528\u6237\u7684\u89c6\u89d2\u52a8\u6001\u8c03\u6574\u4f4d\u7f6e\uff0c\u7b49\u7b49\u4e00\u7cfb\u5217\u7684\u62d3\u5c55\uff0c\u8fd9\u4e9b\u5927\u5bb6\u90fd\u53ef\u4ee5\u53bb\u5c1d\u8bd5\uff0c\u76f8\u4fe1\u90fd\u53ef\u4ee5\u505a\u51fa\u4e00\u4e2a\u5f88\u6f02\u4eae\u76843D\u6811<\/a>\u51fa\u6765\u3002<\/p>\n
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