sqtreemap_xzy

画一个均方树图

Squarified_Treemap(data_file)

datafile: 一棵用json描述的树

示例：

{
 "name": "flare",
 "children": [
  {
   "name": "analytics",
   "children": [
    {
     "name": "cluster",
     "children": [
      {"name": "AgglomerativeCluster", "value": 3938},
      {"name": "CommunityStructure", "value": 3812},
      {"name": "HierarchicalCluster", "value": 6714},
      {"name": "MergeEdge", "value": 743}
     ]
    },
    {
     "name": "optimization",
     "children": [
      {"name": "AspectRatioBanker", "value": 7074}
     ]
    }
   ]
  },
  {
   "name": "animate",
   "children": [
    {"name": "Easing", "value": 17010},
    {"name": "FunctionSequence", "value": 5842},
    {
     "name": "interpolate",
     "children": [
      {"name": "ArrayInterpolator", "value": 1983},
      {"name": "ColorInterpolator", "value": 2047}
     ]
    },
    {"name": "ISchedulable", "value": 1041},
    {"name": "Parallel", "value": 5176},
    {"name": "Pause", "value": 449}
   ]
  }
 ]
}