Question

I recently started using d3js and I am currently trying to figure out how to use transitions.

I got the TreeMap example working with my own json file.

My question is: How can I change the layout with a transition from the treemap to a tree?

My json data looks like this:

{"name": "OS",
 "children": [
   {"name": "Linux x64",
    "children": [
      {"name": "Linux (amd64)", "size": 58154},
      {"name": "Linux (ia64)", "size": 3}
    ]
   },
   {"name": "Linux x86",
    "children": [
      {"name": "Linux (i386)", "size": 12269}
    ]
   },
   {"name": "Mac OS x64",
    "children": [
      {"name": "Mac OS X (x86_64)", "size": 53118}
    ]
   },
   {"name": "Mac OS x86",
    "children": [
      {"name": "Mac OS X (i386)", "size": 409}
    ]
   },
   {"name": "SunOS x64",
    "children": [
      {"name": "SunOS (amd64)", "size": 3}
    ]
   },
   {"name": "SunOS x86",
    "children": [
      {"name": "SunOS (x86)", "size": 8}
    ]
   },
   {"name": "Windows x64",
    "children": [
      {"name": "Windows 2003 (amd64)", "size": 32},
      {"name": "Windows 7 (amd64)", "size": 25492},
      {"name": "Windows 8 (amd64)", "size": 19},
      {"name": "Windows NT (unknown) (amd64)", "size": 76},
      {"name": "Windows Server 2008 (amd64)", "size": 349},
      {"name": "Windows Server 2008 R2 (amd64)", "size": 428},
      {"name": "Windows Vista (amd64)", "size": 1337},
      {"name": "Windows XP (amd64)", "size": 1284}
    ]
   },
   {"name": "Windows x86",
    "children": [
      {"name": "Windows 2000 (x86)", "size": 147},
      {"name": "Windows 2003 (x86)", "size": 390},
      {"name": "Windows 7 (x86)", "size": 17933},
      {"name": "Windows 8 (x86)", "size": 10},
      {"name": "Windows 95 (x86)", "size": 2},
      {"name": "Windows NT (unknown) (x86)", "size": 13},
      {"name": "Windows Server 2008 (x86)", "size": 19},
      {"name": "Windows Server 2008 R2 (x86)", "size": 43},
      {"name": "Windows Vista (x86)", "size": 4815},
      {"name": "Windows XP (x86)", "size": 34545}
    ]
   }
 ]
}

I didn’t really change the example code, but I can post it, if it helps.

Answer 1

You can’t make transition from a TreeMap to Tree… Transition change styles or attributes but you cant make a transition from one layout to another.

For dummies: transitions is like change apple’s color from red to green or to change it’s size, but you can’t change an apple by an orange.