WordTree: retreive Datatable row of selected word from user

[Andres Felipe San Martin]

Hi,

I've been trying to retreive the Datatable row of a selected word in a WordTree Chart and failing miserably at it.

Considering the explicit case:

var nodeListData = new google.visualization.DataTable();

nodeListData.addColumn('number', 'id');
nodeListData.addColumn('string', 'childLabel');
nodeListData.addColumn('number', 'parent');
nodeListData.addColumn('number', 'size');
nodeListData.addColumn('number', 'color');

nodeListData.addRow([0, 'Life', -1, 1, 0]);
nodeListData.addRow([1, 'Archaea', 0, 1, 0]);

nodeListData.addRow([2, 'Eukarya', 0, 5, 0]);

var options = {wordtree: {format: 'explicit'}};
var mywordtree = new google.visualization.WordTree(document.getElementById('wordtree_explicit'));
google.visualization.events.addListener(mywordtree, 'select', myClickHandler);
mywordtree.draw(nodeListData, options);


function myClickHandler(){
//this just has 3 properties (word, weight and color)
var selectedItem = mywordtree.getSelection();
//trying with any method of the Datatable gives no results probably due to the fact that it is not the object drawn on the page
.....
}

I would be very grateful if someone could help in this regard. 

The purpose behind this effort is being able to uniquely identify a user-selected word of the charted wordtree.

Thank you in advance.

Felipe.

[Sergey Grabkovsky]

Hi Andres,

I can certainly see how this would be useful, but we don't currently support this method of identifying a word. I think your best bet is to create a map of word to row index that you would look it up.

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[Axel Soto]

The problem with this solution is that a word can map to multiple indexes if the word is repeated

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