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19 KiB
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19 KiB
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{"ast":null,"code":"import \"core-js/modules/es.string.fixed.js\";\n\n/*\r\n* Licensed to the Apache Software Foundation (ASF) under one\r\n* or more contributor license agreements. See the NOTICE file\r\n* distributed with this work for additional information\r\n* regarding copyright ownership. The ASF licenses this file\r\n* to you under the Apache License, Version 2.0 (the\r\n* \"License\"); you may not use this file except in compliance\r\n* with the License. You may obtain a copy of the License at\r\n*\r\n* http://www.apache.org/licenses/LICENSE-2.0\r\n*\r\n* Unless required by applicable law or agreed to in writing,\r\n* software distributed under the License is distributed on an\r\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\n* KIND, either express or implied. See the License for the\r\n* specific language governing permissions and limitations\r\n* under the License.\r\n*/\n\n/**\r\n * AUTO-GENERATED FILE. DO NOT MODIFY.\r\n */\n\n/*\r\n* Licensed to the Apache Software Foundation (ASF) under one\r\n* or more contributor license agreements. See the NOTICE file\r\n* distributed with this work for additional information\r\n* regarding copyright ownership. The ASF licenses this file\r\n* to you under the Apache License, Version 2.0 (the\r\n* \"License\"); you may not use this file except in compliance\r\n* with the License. You may obtain a copy of the License at\r\n*\r\n* http://www.apache.org/licenses/LICENSE-2.0\r\n*\r\n* Unless required by applicable law or agreed to in writing,\r\n* software distributed under the License is distributed on an\r\n* \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\n* KIND, either express or implied. See the License for the\r\n* specific language governing permissions and limitations\r\n* under the License.\r\n*/\n\n/*\r\n* A third-party license is embeded for some of the code in this file:\r\n* Some formulas were originally copied from \"d3.js\" with some\r\n* modifications made for this project.\r\n* (See more details in the comment of the method \"step\" below.)\r\n* The use of the source code of this file is also subject to the terms\r\n* and consitions of the license of \"d3.js\" (BSD-3Clause, see\r\n* </licenses/LICENSE-d3>).\r\n*/\nimport * as vec2 from 'zrender/lib/core/vector.js';\nvar scaleAndAdd = vec2.scaleAndAdd; // function adjacentNode(n, e) {\n// return e.n1 === n ? e.n2 : e.n1;\n// }\n\nexport function forceLayout(inNodes, inEdges, opts) {\n var nodes = inNodes;\n var edges = inEdges;\n var rect = opts.rect;\n var width = rect.width;\n var height = rect.height;\n var center = [rect.x + width / 2, rect.y + height / 2]; // let scale = opts.scale || 1;\n\n var gravity = opts.gravity == null ? 0.1 : opts.gravity; // for (let i = 0; i < edges.length; i++) {\n // let e = edges[i];\n // let n1 = e.n1;\n // let n2 = e.n2;\n // n1.edges = n1.edges || [];\n // n2.edges = n2.edges || [];\n // n1.edges.push(e);\n // n2.edges.push(e);\n // }\n // Init position\n\n for (var i = 0; i < nodes.length; i++) {\n var n = nodes[i];\n\n if (!n.p) {\n n.p = vec2.create(width * (Math.random() - 0.5) + center[0], height * (Math.random() - 0.5) + center[1]);\n }\n\n n.pp = vec2.clone(n.p);\n n.edges = null;\n } // Formula in 'Graph Drawing by Force-directed Placement'\n // let k = scale * Math.sqrt(width * height / nodes.length);\n // let k2 = k * k;\n\n\n var initialFriction = opts.friction == null ? 0.6 : opts.friction;\n var friction = initialFriction;\n var beforeStepCallback;\n var afterStepCallback;\n return {\n warmUp: function warmUp() {\n friction = initialFriction * 0.8;\n },\n setFixed: function setFixed(idx) {\n nodes[idx].fixed = true;\n },\n setUnfixed: function setUnfixed(idx) {\n nodes[idx].fixed = false;\n },\n\n /**\r\n * Before step hook\r\n */\n beforeStep: function beforeStep(cb) {\n beforeStepCallback = cb;\n },\n\n /**\r\n * After step hook\r\n */\n afterStep: function afterStep(cb) {\n
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