410 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			410 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 
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| /*
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| * Licensed to the Apache Software Foundation (ASF) under one
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| * or more contributor license agreements.  See the NOTICE file
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| * distributed with this work for additional information
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| * regarding copyright ownership.  The ASF licenses this file
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| * to you under the Apache License, Version 2.0 (the
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| * "License"); you may not use this file except in compliance
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| * with the License.  You may obtain a copy of the License at
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| *
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| *   http://www.apache.org/licenses/LICENSE-2.0
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| *
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| * Unless required by applicable law or agreed to in writing,
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| * software distributed under the License is distributed on an
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| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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| * KIND, either express or implied.  See the License for the
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| * specific language governing permissions and limitations
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| * under the License.
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| */
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| 
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| var echarts = require("../../echarts");
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| 
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| var zrUtil = require("zrender/lib/core/util");
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| 
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| var SymbolDraw = require("../helper/SymbolDraw");
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| 
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| var LineDraw = require("../helper/LineDraw");
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| 
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| var RoamController = require("../../component/helper/RoamController");
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| 
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| var roamHelper = require("../../component/helper/roamHelper");
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| 
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| var _cursorHelper = require("../../component/helper/cursorHelper");
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| 
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| var onIrrelevantElement = _cursorHelper.onIrrelevantElement;
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| 
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| var graphic = require("../../util/graphic");
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| 
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| var adjustEdge = require("./adjustEdge");
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| 
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| var _graphHelper = require("./graphHelper");
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| 
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| var getNodeGlobalScale = _graphHelper.getNodeGlobalScale;
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| 
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| /*
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| * Licensed to the Apache Software Foundation (ASF) under one
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| * or more contributor license agreements.  See the NOTICE file
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| * distributed with this work for additional information
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| * regarding copyright ownership.  The ASF licenses this file
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| * to you under the Apache License, Version 2.0 (the
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| * "License"); you may not use this file except in compliance
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| * with the License.  You may obtain a copy of the License at
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| *
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| *   http://www.apache.org/licenses/LICENSE-2.0
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| *
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| * Unless required by applicable law or agreed to in writing,
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| * software distributed under the License is distributed on an
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| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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| * KIND, either express or implied.  See the License for the
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| * specific language governing permissions and limitations
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| * under the License.
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| */
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| var FOCUS_ADJACENCY = '__focusNodeAdjacency';
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| var UNFOCUS_ADJACENCY = '__unfocusNodeAdjacency';
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| var nodeOpacityPath = ['itemStyle', 'opacity'];
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| var lineOpacityPath = ['lineStyle', 'opacity'];
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| 
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| function getItemOpacity(item, opacityPath) {
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|   var opacity = item.getVisual('opacity');
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|   return opacity != null ? opacity : item.getModel().get(opacityPath);
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| }
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| 
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| function fadeOutItem(item, opacityPath, opacityRatio) {
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|   var el = item.getGraphicEl();
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|   var opacity = getItemOpacity(item, opacityPath);
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| 
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|   if (opacityRatio != null) {
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|     opacity == null && (opacity = 1);
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|     opacity *= opacityRatio;
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|   }
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| 
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|   el.downplay && el.downplay();
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|   el.traverse(function (child) {
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|     if (!child.isGroup) {
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|       var opct = child.lineLabelOriginalOpacity;
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| 
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|       if (opct == null || opacityRatio != null) {
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|         opct = opacity;
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|       }
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| 
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|       child.setStyle('opacity', opct);
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|     }
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|   });
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| }
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| 
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| function fadeInItem(item, opacityPath) {
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|   var opacity = getItemOpacity(item, opacityPath);
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|   var el = item.getGraphicEl(); // Should go back to normal opacity first, consider hoverLayer,
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|   // where current state is copied to elMirror, and support
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|   // emphasis opacity here.
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| 
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|   el.traverse(function (child) {
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|     !child.isGroup && child.setStyle('opacity', opacity);
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|   });
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|   el.highlight && el.highlight();
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| }
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| 
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| var _default = echarts.extendChartView({
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|   type: 'graph',
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|   init: function (ecModel, api) {
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|     var symbolDraw = new SymbolDraw();
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|     var lineDraw = new LineDraw();
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|     var group = this.group;
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|     this._controller = new RoamController(api.getZr());
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|     this._controllerHost = {
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|       target: group
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|     };
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|     group.add(symbolDraw.group);
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|     group.add(lineDraw.group);
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|     this._symbolDraw = symbolDraw;
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|     this._lineDraw = lineDraw;
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|     this._firstRender = true;
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|   },
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|   render: function (seriesModel, ecModel, api) {
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|     var graphView = this;
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|     var coordSys = seriesModel.coordinateSystem;
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|     this._model = seriesModel;
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|     var symbolDraw = this._symbolDraw;
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|     var lineDraw = this._lineDraw;
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|     var group = this.group;
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| 
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|     if (coordSys.type === 'view') {
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|       var groupNewProp = {
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|         position: coordSys.position,
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|         scale: coordSys.scale
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|       };
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| 
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|       if (this._firstRender) {
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|         group.attr(groupNewProp);
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|       } else {
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|         graphic.updateProps(group, groupNewProp, seriesModel);
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|       }
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|     } // Fix edge contact point with node
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| 
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| 
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|     adjustEdge(seriesModel.getGraph(), getNodeGlobalScale(seriesModel));
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|     var data = seriesModel.getData();
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|     symbolDraw.updateData(data);
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|     var edgeData = seriesModel.getEdgeData();
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|     lineDraw.updateData(edgeData);
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| 
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|     this._updateNodeAndLinkScale();
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| 
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|     this._updateController(seriesModel, ecModel, api);
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| 
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|     clearTimeout(this._layoutTimeout);
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|     var forceLayout = seriesModel.forceLayout;
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|     var layoutAnimation = seriesModel.get('force.layoutAnimation');
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| 
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|     if (forceLayout) {
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|       this._startForceLayoutIteration(forceLayout, layoutAnimation);
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|     }
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| 
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|     data.eachItemGraphicEl(function (el, idx) {
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|       var itemModel = data.getItemModel(idx); // Update draggable
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| 
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|       el.off('drag').off('dragend');
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|       var draggable = itemModel.get('draggable');
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| 
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|       if (draggable) {
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|         el.on('drag', function () {
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|           if (forceLayout) {
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|             forceLayout.warmUp();
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|             !this._layouting && this._startForceLayoutIteration(forceLayout, layoutAnimation);
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|             forceLayout.setFixed(idx); // Write position back to layout
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| 
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|             data.setItemLayout(idx, el.position);
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|           }
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|         }, this).on('dragend', function () {
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|           if (forceLayout) {
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|             forceLayout.setUnfixed(idx);
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|           }
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|         }, this);
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|       }
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| 
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|       el.setDraggable(draggable && forceLayout);
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|       el[FOCUS_ADJACENCY] && el.off('mouseover', el[FOCUS_ADJACENCY]);
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|       el[UNFOCUS_ADJACENCY] && el.off('mouseout', el[UNFOCUS_ADJACENCY]);
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| 
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|       if (itemModel.get('focusNodeAdjacency')) {
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|         el.on('mouseover', el[FOCUS_ADJACENCY] = function () {
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|           graphView._clearTimer();
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| 
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|           api.dispatchAction({
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|             type: 'focusNodeAdjacency',
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|             seriesId: seriesModel.id,
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|             dataIndex: el.dataIndex
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|           });
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|         });
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|         el.on('mouseout', el[UNFOCUS_ADJACENCY] = function () {
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|           graphView._dispatchUnfocus(api);
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|         });
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|       }
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|     }, this);
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|     data.graph.eachEdge(function (edge) {
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|       var el = edge.getGraphicEl();
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|       el[FOCUS_ADJACENCY] && el.off('mouseover', el[FOCUS_ADJACENCY]);
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|       el[UNFOCUS_ADJACENCY] && el.off('mouseout', el[UNFOCUS_ADJACENCY]);
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| 
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|       if (edge.getModel().get('focusNodeAdjacency')) {
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|         el.on('mouseover', el[FOCUS_ADJACENCY] = function () {
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|           graphView._clearTimer();
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| 
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|           api.dispatchAction({
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|             type: 'focusNodeAdjacency',
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|             seriesId: seriesModel.id,
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|             edgeDataIndex: edge.dataIndex
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|           });
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|         });
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|         el.on('mouseout', el[UNFOCUS_ADJACENCY] = function () {
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|           graphView._dispatchUnfocus(api);
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|         });
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|       }
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|     });
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|     var circularRotateLabel = seriesModel.get('layout') === 'circular' && seriesModel.get('circular.rotateLabel');
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|     var cx = data.getLayout('cx');
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|     var cy = data.getLayout('cy');
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|     data.eachItemGraphicEl(function (el, idx) {
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|       var itemModel = data.getItemModel(idx);
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|       var labelRotate = itemModel.get('label.rotate') || 0;
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|       var symbolPath = el.getSymbolPath();
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| 
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|       if (circularRotateLabel) {
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|         var pos = data.getItemLayout(idx);
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|         var rad = Math.atan2(pos[1] - cy, pos[0] - cx);
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| 
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|         if (rad < 0) {
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|           rad = Math.PI * 2 + rad;
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|         }
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| 
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|         var isLeft = pos[0] < cx;
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| 
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|         if (isLeft) {
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|           rad = rad - Math.PI;
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|         }
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| 
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|         var textPosition = isLeft ? 'left' : 'right';
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|         graphic.modifyLabelStyle(symbolPath, {
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|           textRotation: -rad,
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|           textPosition: textPosition,
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|           textOrigin: 'center'
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|         }, {
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|           textPosition: textPosition
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|         });
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|       } else {
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|         graphic.modifyLabelStyle(symbolPath, {
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|           textRotation: labelRotate *= Math.PI / 180
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|         });
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|       }
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|     });
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|     this._firstRender = false;
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|   },
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|   dispose: function () {
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|     this._controller && this._controller.dispose();
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|     this._controllerHost = {};
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| 
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|     this._clearTimer();
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|   },
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|   _dispatchUnfocus: function (api, opt) {
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|     var self = this;
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| 
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|     this._clearTimer();
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| 
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|     this._unfocusDelayTimer = setTimeout(function () {
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|       self._unfocusDelayTimer = null;
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|       api.dispatchAction({
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|         type: 'unfocusNodeAdjacency',
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|         seriesId: self._model.id
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|       });
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|     }, 500);
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|   },
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|   _clearTimer: function () {
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|     if (this._unfocusDelayTimer) {
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|       clearTimeout(this._unfocusDelayTimer);
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|       this._unfocusDelayTimer = null;
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|     }
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|   },
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|   focusNodeAdjacency: function (seriesModel, ecModel, api, payload) {
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|     var data = seriesModel.getData();
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|     var graph = data.graph;
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|     var dataIndex = payload.dataIndex;
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|     var edgeDataIndex = payload.edgeDataIndex;
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|     var node = graph.getNodeByIndex(dataIndex);
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|     var edge = graph.getEdgeByIndex(edgeDataIndex);
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| 
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|     if (!node && !edge) {
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|       return;
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|     }
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| 
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|     graph.eachNode(function (node) {
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|       fadeOutItem(node, nodeOpacityPath, 0.1);
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|     });
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|     graph.eachEdge(function (edge) {
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|       fadeOutItem(edge, lineOpacityPath, 0.1);
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|     });
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| 
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|     if (node) {
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|       fadeInItem(node, nodeOpacityPath);
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|       zrUtil.each(node.edges, function (adjacentEdge) {
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|         if (adjacentEdge.dataIndex < 0) {
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|           return;
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|         }
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| 
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|         fadeInItem(adjacentEdge, lineOpacityPath);
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|         fadeInItem(adjacentEdge.node1, nodeOpacityPath);
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|         fadeInItem(adjacentEdge.node2, nodeOpacityPath);
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|       });
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|     }
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| 
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|     if (edge) {
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|       fadeInItem(edge, lineOpacityPath);
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|       fadeInItem(edge.node1, nodeOpacityPath);
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|       fadeInItem(edge.node2, nodeOpacityPath);
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|     }
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|   },
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|   unfocusNodeAdjacency: function (seriesModel, ecModel, api, payload) {
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|     var graph = seriesModel.getData().graph;
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|     graph.eachNode(function (node) {
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|       fadeOutItem(node, nodeOpacityPath);
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|     });
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|     graph.eachEdge(function (edge) {
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|       fadeOutItem(edge, lineOpacityPath);
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|     });
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|   },
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|   _startForceLayoutIteration: function (forceLayout, layoutAnimation) {
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|     var self = this;
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| 
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|     (function step() {
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|       forceLayout.step(function (stopped) {
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|         self.updateLayout(self._model);
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|         (self._layouting = !stopped) && (layoutAnimation ? self._layoutTimeout = setTimeout(step, 16) : step());
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|       });
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|     })();
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|   },
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|   _updateController: function (seriesModel, ecModel, api) {
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|     var controller = this._controller;
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|     var controllerHost = this._controllerHost;
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|     var group = this.group;
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|     controller.setPointerChecker(function (e, x, y) {
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|       var rect = group.getBoundingRect();
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|       rect.applyTransform(group.transform);
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|       return rect.contain(x, y) && !onIrrelevantElement(e, api, seriesModel);
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|     });
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| 
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|     if (seriesModel.coordinateSystem.type !== 'view') {
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|       controller.disable();
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|       return;
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|     }
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| 
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|     controller.enable(seriesModel.get('roam'));
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|     controllerHost.zoomLimit = seriesModel.get('scaleLimit');
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|     controllerHost.zoom = seriesModel.coordinateSystem.getZoom();
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|     controller.off('pan').off('zoom').on('pan', function (e) {
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|       roamHelper.updateViewOnPan(controllerHost, e.dx, e.dy);
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|       api.dispatchAction({
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|         seriesId: seriesModel.id,
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|         type: 'graphRoam',
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|         dx: e.dx,
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|         dy: e.dy
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|       });
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|     }).on('zoom', function (e) {
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|       roamHelper.updateViewOnZoom(controllerHost, e.scale, e.originX, e.originY);
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|       api.dispatchAction({
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|         seriesId: seriesModel.id,
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|         type: 'graphRoam',
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|         zoom: e.scale,
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|         originX: e.originX,
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|         originY: e.originY
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|       });
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| 
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|       this._updateNodeAndLinkScale();
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| 
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|       adjustEdge(seriesModel.getGraph(), getNodeGlobalScale(seriesModel));
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| 
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|       this._lineDraw.updateLayout();
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|     }, this);
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|   },
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|   _updateNodeAndLinkScale: function () {
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|     var seriesModel = this._model;
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|     var data = seriesModel.getData();
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|     var nodeScale = getNodeGlobalScale(seriesModel);
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|     var invScale = [nodeScale, nodeScale];
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|     data.eachItemGraphicEl(function (el, idx) {
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|       el.attr('scale', invScale);
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|     });
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|   },
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|   updateLayout: function (seriesModel) {
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|     adjustEdge(seriesModel.getGraph(), getNodeGlobalScale(seriesModel));
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| 
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|     this._symbolDraw.updateLayout();
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| 
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|     this._lineDraw.updateLayout();
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|   },
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|   remove: function (ecModel, api) {
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|     this._symbolDraw && this._symbolDraw.remove();
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|     this._lineDraw && this._lineDraw.remove();
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|   }
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| });
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| 
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| module.exports = _default; | 
