[GitHub] [incubator-echarts] zd5043039119 commented on issue #12407: Graph options : TypeError: el is undefined

[GitBox <gi...@apache.org>]

zd5043039119 commented on issue #12407:
URL: https://github.com/apache/incubator-echarts/issues/12407#issuecomment-693812285


   Hi @Ovilia 
   I believe Jayesh23 means the code in GraphView.js, line 181
   ```javascript
    data.graph.eachEdge(function (edge) {
               var el = edge.getGraphicEl();
   
               el[FOCUS_ADJACENCY] && el.off('mouseover', el[FOCUS_ADJACENCY]);
               el[UNFOCUS_ADJACENCY] && el.off('mouseout', el[UNFOCUS_ADJACENCY]);
   
               if (edge.getModel().get('focusNodeAdjacency')) {
                   el.on('mouseover', el[FOCUS_ADJACENCY] = function () {
                       graphView._clearTimer();
                       api.dispatchAction({
                           type: 'focusNodeAdjacency',
                           seriesId: seriesModel.id,
                           edgeDataIndex: edge.dataIndex
                       });
                   });
                   el.on('mouseout', el[UNFOCUS_ADJACENCY] = function () {
                       graphView._dispatchUnfocus(api);
                   });
               }
           });
   ```
   
   When set the node property fixed = true, it will happens when use the demo
   https://echarts.apache.org/examples/zh/editor.html?c=graph-force
   and change add 1 line like 
   ```javascript
       graph.nodes.forEach(function (node) {
           node.itemStyle = null;
           node.symbolSize = 10;
           node.value = node.symbolSize;
           node.category = node.attributes.modularity_class;
           // Use random x, y
           node.x = node.y = null;
           node.draggable = true;
           node.fixed = true;    // add this line 
       });
   ```
   it will throw the exception
   ```
   VM186 echarts.min.js:22 Uncaught TypeError: Cannot read property '__focusNodeAdjacency' of undefined
       at VM186 echarts.min.js:22
       at $_.J_.eachEdge (VM186 echarts.min.js:22)
       at e.render (VM186 echarts.min.js:22)
       at jh.progress (VM186 echarts.min.js:22)
       at ac (VM186 echarts.min.js:22)
       at jh.qh.perform (VM186 echarts.min.js:22)
       at VM186 echarts.min.js:22
       at e.<anonymous> (VM186 echarts.min.js:22)
       at Array.forEach (<anonymous>)
       at R (VM186 echarts.min.js:22)
   ```


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