JSON Traverse Object

_.md

[ Launch: JSON Traverse Object ] 8561241 by ljbrown238

config.json

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inlet.js

// This example shows how to summarize the values of children into each parent

var root = {
    "name": "root",
    "children": [
        {
            "name": "a",
            "children": [
                {
                    "name": "a1",
                    "size": "1"
                },
                {
                    "name": "a2",
                    "size": "2"
                }
             ]
        },
        {
            "name": "b",
            "children": [
                {
                    "name": "b1",
                    "size": "3"
                }
            ]
        },
        {
            "name": "c",
            "size": "4"
        }
    ]
};

// Create a function that will summarize all children sizes into new property named "value"
var partition = d3.layout.partition()
           .value(function(d){return d.size;})
           .children(function(d){return d.children;}) 
           //.sort(null); //optional: turns off sorting, comment out defaults to sort by descending size

partition(root);	// This process calculates the value to be the sum of the children's sizes
console.log(root);