[GitHub] Skullnick commented on issue #8815: Add dispatchAction of type: 'treemapZoomToNode' to treemap

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

Skullnick commented on issue #8815: Add dispatchAction of type: 'treemapZoomToNode' to treemap
URL: https://github.com/apache/incubator-echarts/issues/8815#issuecomment-410501834
 
 
   I'm not sure this is the intended use by I added the following function in echarts.js in the treemap section, under the render function : 
   `    /**
        * @override
        */
       highlight: function (seriesModel, ecModel, api, payload) {
           var targetInfo;        var targetInfo;
           var viewRoot = seriesModel.getViewRoot();
   
           viewRoot.eachNode({attr: 'viewChildren', order: 'preorder'}, function (node) {
               var bgEl = this._storage.background[node.getRawIndex()];
               if (bgEl) 
               {
                   if(payload.name === node.name)          
                       targetInfo = {node: node};
                   
               }
           }, this);
   
           if(payload.name !== "")      
               this._zoomToNode(targetInfo);
       }`
   
   I then called a dispatchAction of type 'highlight' like the following : 
   curChart.dispatchAction({type: 'highlight', name: sName});
   
   It does the job but I'm sure you could implement something cleaner :)

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