README.md

Canopy

Visualization UI for exploring collaborative and personal data.

Local Development

Compile CoffeeScript to JavaScript:

coffee -c *.coffee

To serve locally, you may (depending on your system config) be able to simply:

python -m SimpleHTTPServer 8888

Then visit http://localhost:8888/

Or if you have Ruby and Sinatra installed:

ruby app.rb

This should start a Sinatra app at http://localhost:4567/.

app.coffee

root = exports ? this

class root.App
  path_elem : '#viz-path'
  viz_elem  : '#viz-collections'
  list_elem : '#viz-list'

  constructor: (d3_layout) ->
    @github = new App.Github
    @d3 = new d3_layout   
    $(@path_elem).find('[data-path="root"]').on('click', =>
      @render(@data.root)
    )

  loadGitRepo: (repo, options = {}) ->
    opts = $.extend({sha: 'HEAD', local: false, recursive: true}, options, {repo: repo})
    @loaded = opts
    opts.recursive = if opts.recursive then 1 else 0
    unless opts.local
      repo = "https://api.github.com/repos/#{repo}/git/trees/#{opts.sha}?recursive=#{opts.recursive}&callback=?"
    @github.loadRepo(repo, (data) =>
      @data = @github.parseForD3(data)
      @render(@data.root)
    )

  render: (data) ->
    #data = @trimTree(data, 2)
    $(@path_elem).find('[data-path="path"]').text(data.path)
    $(@viz_elem).empty()
    @d3.render(@viz_elem, data, click: @onCircleClick)
    @renderList(data) if data.children

  renderList: (data) ->
    list = $(@list_elem).empty()
    data = data.children.sort((a, b) ->
      a = a.name.toLowerCase(); b = b.name.toLowerCase()
      return 0 if (a == b)
      return 1 if (a > b)
      return -1 if (a < b)
    )
    for node in data
      list.append("<div>#{node.path}</div>")

  trimTree: (tree, level = 1, extend = true) ->
    tree = $.extend({}, tree) if extend
    return tree unless tree.children
    for branch in tree.children
      continue unless branch.children
      if level == 1
        branch.size = @sumSize(branch.children)
        delete branch.children
      else
        @trimTree(branch, level-1)
    tree

  sumSize: (tree) ->
    # todo: recursively sum up blob nodes in tree
    0

  onCircleClick: (evt) =>
    @render(evt)

app.d3.coffee

root = exports ? this

class root.App.D3CirclePack
  render: (elem, data, options = {}) ->
    width = 600
    height = 600
    format = d3.format(",d")

    pack = d3.layout.pack()
      .size([ width - 4, height - 4 ])
      .value((d) -> d.size)

    vis = d3.select(elem).append("svg")
        .attr("width", width)
        .attr("height", height)
        .attr("class", "pack")
      .append("g")
        .attr("transform", "translate(2, 2)")

    node = vis.data([ data ]).selectAll("#{elem} g.node")
        .data(pack.nodes)
      .enter().append("g")
        .attr("class", (d) -> if d.children then "node" else "leaf node")
        .attr("transform", (d) -> "translate(" + d.x + "," + d.y + ")")

    node.append("title")
      .text (d) -> d.name + (if d.children then "" else ": " + format(d.size))

    node.append("circle")
      .attr("r", (d) -> d.r)
      .on "click", options.click

    node.filter((d) -> d.children)
      .append("text")
        .attr("text-anchor", "middle")
        .attr("dy", ".3em")
        .text (d) -> if d.name.length <= d.r/3 then d.name else ""


class root.App.D3RadialTree
  render: (elem, data, options = {}) ->
    diameter = 960
    tree = d3.layout.tree()
      .size([360, diameter / 2 - 120])
      .separation((a, b) -> ((if a.parent is b.parent then 1 else 2)) / a.depth)

    diagonal = d3.svg.diagonal.radial()
      .projection((d) -> [d.y, d.x / 180 * Math.PI])

    svg = d3.select(elem).append("svg")
        .attr("width", diameter)
        .attr("height", diameter - 150)
      .append("g")
        .attr("transform", "translate(" + diameter / 2 + "," + diameter / 2 + ")")

    nodes = tree.nodes(data)
    links = tree.links(nodes)
    link = svg.selectAll("#{elem} .link")
        .data(links)
      .enter()
        .append("path")
        .attr("class", "link")
        .attr("d", diagonal)
        
    node = svg.selectAll("#{elem} .node")
        .data(nodes)
      .enter()
        .append("g")
        .attr("class", "node")
        .attr("transform", (d) -> "rotate(" + (d.x - 90) + ")translate(" + d.y + ")")
        
    node.append("circle")
        .attr "r", 4.5
        
    node.append("text")
        .attr("dy", ".31em")
        .attr("text-anchor", (d) -> (if d.x < 180 then "start" else "end"))
        .attr("transform", (d) -> (if d.x < 180 then "translate(8)" else "rotate(180)translate(-8)"))
        .text (d) -> d.name

    d3.select(self.frameElement).style "height", diameter - 150 + "px"
  

app.d3.js

// Generated by CoffeeScript 1.4.0
(function() {
  var root;

  root = typeof exports !== "undefined" && exports !== null ? exports : this;

  root.App.D3CirclePack = (function() {

    function D3CirclePack() {}

    D3CirclePack.prototype.render = function(elem, data, options) {
      var format, height, node, pack, vis, width;
      if (options == null) {
        options = {};
      }
      width = 600;
      height = 600;
      format = d3.format(",d");
      pack = d3.layout.pack().size([width - 4, height - 4]).value(function(d) {
        return d.size;
      });
      vis = d3.select(elem).append("svg").attr("width", width).attr("height", height).attr("class", "pack").append("g").attr("transform", "translate(2, 2)");
      node = vis.data([data]).selectAll("" + elem + " g.node").data(pack.nodes).enter().append("g").attr("class", function(d) {
        if (d.children) {
          return "node";
        } else {
          return "leaf node";
        }
      }).attr("transform", function(d) {
        return "translate(" + d.x + "," + d.y + ")";
      });
      node.append("title").text(function(d) {
        return d.name + (d.children ? "" : ": " + format(d.size));
      });
      node.append("circle").attr("r", function(d) {
        return d.r;
      }).on("click", options.click);
      return node.filter(function(d) {
        return d.children;
      }).append("text").attr("text-anchor", "middle").attr("dy", ".3em").text(function(d) {
        if (d.name.length <= d.r / 3) {
          return d.name;
        } else {
          return "";
        }
      });
    };

    return D3CirclePack;

  })();

  root.App.D3RadialTree = (function() {

    function D3RadialTree() {}

    D3RadialTree.prototype.render = function(elem, data, options) {
      var diagonal, diameter, link, links, node, nodes, svg, tree;
      if (options == null) {
        options = {};
      }
      diameter = 960;
      tree = d3.layout.tree().size([360, diameter / 2 - 120]).separation(function(a, b) {
        return (a.parent === b.parent ? 1 : 2) / a.depth;
      });
      diagonal = d3.svg.diagonal.radial().projection(function(d) {
        return [d.y, d.x / 180 * Math.PI];
      });
      svg = d3.select(elem).append("svg").attr("width", diameter).attr("height", diameter - 150).append("g").attr("transform", "translate(" + diameter / 2 + "," + diameter / 2 + ")");
      nodes = tree.nodes(data);
      links = tree.links(nodes);
      link = svg.selectAll("" + elem + " .link").data(links).enter().append("path").attr("class", "link").attr("d", diagonal);
      node = svg.selectAll("" + elem + " .node").data(nodes).enter().append("g").attr("class", "node").attr("transform", function(d) {
        return "rotate(" + (d.x - 90) + ")translate(" + d.y + ")";
      });
      node.append("circle").attr("r", 4.5);
      node.append("text").attr("dy", ".31em").attr("text-anchor", function(d) {
        if (d.x < 180) {
          return "start";
        } else {
          return "end";
        }
      }).attr("transform", function(d) {
        if (d.x < 180) {
          return "translate(8)";
        } else {
          return "rotate(180)translate(-8)";
        }
      }).text(function(d) {
        return d.name;
      });
      return d3.select(self.frameElement).style("height", diameter - 150 + "px");
    };

    return D3RadialTree;

  })();

}).call(this);

app.github.coffee

root = exports ? this

class root.App.Github
  loadRepo: (repo, success, error) ->
    $.getJSON(repo, success)

  parseForD3: (data) ->
    paths =
      root:
        name: ''
        path: ''
        children: []
    for node in data.data.tree
      if node.type == 'blob'
        @_parseForD3Blob(paths, node)
      else
        @_parseForD3Tree(paths, node)
    @_parseForD3Collapse(paths)

  _parseForD3Blob: (paths, node) ->
    segments = "root/#{node.path}".match(/(.*)\/(.*)/)
    node.name = segments[2]
    path = segments[1]
    name = path.substr(5)
    paths[path] ||=
      name: name
      path: node.path
      children: []
    paths[path].children.push(node)

  _parseForD3Tree: (paths, node) ->
    path = "root/#{node.path}"
    name = path.match(/(.*)\/(.*)/)[2]
    paths[path] ||=
      name: name
      children: []
    $.extend(paths[path], node)

  _parseForD3Collapse: (paths) ->
    for path, node of paths
      parent = path.match(/(.*)\//)
      continue unless parent && parent = parent[1]
      paths[parent].children.push(node)
    paths

app.github.js

// Generated by CoffeeScript 1.4.0
(function() {
  var root;

  root = typeof exports !== "undefined" && exports !== null ? exports : this;

  root.App.Github = (function() {

    function Github() {}

    Github.prototype.loadRepo = function(repo, success, error) {
      return $.getJSON(repo, success);
    };

    Github.prototype.parseForD3 = function(data) {
      var node, paths, _i, _len, _ref;
      paths = {
        root: {
          name: '',
          path: '',
          children: []
        }
      };
      _ref = data.data.tree;
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        node = _ref[_i];
        if (node.type === 'blob') {
          this._parseForD3Blob(paths, node);
        } else {
          this._parseForD3Tree(paths, node);
        }
      }
      return this._parseForD3Collapse(paths);
    };

    Github.prototype._parseForD3Blob = function(paths, node) {
      var name, path, segments;
      segments = ("root/" + node.path).match(/(.*)\/(.*)/);
      node.name = segments[2];
      path = segments[1];
      name = path.substr(5);
      paths[path] || (paths[path] = {
        name: name,
        path: node.path,
        children: []
      });
      return paths[path].children.push(node);
    };

    Github.prototype._parseForD3Tree = function(paths, node) {
      var name, path;
      path = "root/" + node.path;
      name = path.match(/(.*)\/(.*)/)[2];
      paths[path] || (paths[path] = {
        name: name,
        children: []
      });
      return $.extend(paths[path], node);
    };

    Github.prototype._parseForD3Collapse = function(paths) {
      var node, parent, path;
      for (path in paths) {
        node = paths[path];
        parent = path.match(/(.*)\//);
        if (!(parent && (parent = parent[1]))) {
          continue;
        }
        paths[parent].children.push(node);
      }
      return paths;
    };

    return Github;

  })();

}).call(this);

app.js

// Generated by CoffeeScript 1.4.0
(function() {
  var root,
    __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };

  root = typeof exports !== "undefined" && exports !== null ? exports : this;

  root.App = (function() {

    App.prototype.path_elem = '#viz-path';

    App.prototype.viz_elem = '#viz-collections';

    App.prototype.list_elem = '#viz-list';

    function App(d3_layout) {
      this.onCircleClick = __bind(this.onCircleClick, this);

      var _this = this;
      this.github = new App.Github;
      this.d3 = new d3_layout;
      $(this.path_elem).find('[data-path="root"]').on('click', function() {
        return _this.render(_this.data.root);
      });
    }

    App.prototype.loadGitRepo = function(repo, options) {
      var opts,
        _this = this;
      if (options == null) {
        options = {};
      }
      opts = $.extend({
        sha: 'HEAD',
        local: false,
        recursive: true
      }, options, {
        repo: repo
      });
      this.loaded = opts;
      opts.recursive = opts.recursive ? 1 : 0;
      if (!opts.local) {
        repo = "https://api.github.com/repos/" + repo + "/git/trees/" + opts.sha + "?recursive=" + opts.recursive + "&callback=?";
      }
      return this.github.loadRepo(repo, function(data) {
        _this.data = _this.github.parseForD3(data);
        return _this.render(_this.data.root);
      });
    };

    App.prototype.render = function(data) {
      $(this.path_elem).find('[data-path="path"]').text(data.path);
      $(this.viz_elem).empty();
      this.d3.render(this.viz_elem, data, {
        click: this.onCircleClick
      });
      if (data.children) {
        return this.renderList(data);
      }
    };

    App.prototype.renderList = function(data) {
      var list, node, _i, _len, _results;
      list = $(this.list_elem).empty();
      data = data.children.sort(function(a, b) {
        a = a.name.toLowerCase();
        b = b.name.toLowerCase();
        if (a === b) {
          return 0;
        }
        if (a > b) {
          return 1;
        }
        if (a < b) {
          return -1;
        }
      });
      _results = [];
      for (_i = 0, _len = data.length; _i < _len; _i++) {
        node = data[_i];
        _results.push(list.append("<div>" + node.path + "</div>"));
      }
      return _results;
    };

    App.prototype.trimTree = function(tree, level, extend) {
      var branch, _i, _len, _ref;
      if (level == null) {
        level = 1;
      }
      if (extend == null) {
        extend = true;
      }
      if (extend) {
        tree = $.extend({}, tree);
      }
      if (!tree.children) {
        return tree;
      }
      _ref = tree.children;
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        branch = _ref[_i];
        if (!branch.children) {
          continue;
        }
        if (level === 1) {
          branch.size = this.sumSize(branch.children);
          delete branch.children;
        } else {
          this.trimTree(branch, level - 1);
        }
      }
      return tree;
    };

    App.prototype.sumSize = function(tree) {
      return 0;
    };

    App.prototype.onCircleClick = function(evt) {
      return this.render(evt);
    };

    return App;

  })();

}).call(this);

app.rb

require 'rubygems'
require 'sinatra'

set :static, true
set :public_folder, './'

get '/' do
  redirect '/index.html'
end

circle-packing.css

circle {
  fill-opacity: .25;
  stroke-width: 1px;
  fill: #1f77b4;
  stroke: steelblue;
}

.leaf circle {
  fill-opacity: 0;
  pointer-events: none;
}

text {
  font: 12px sans-serif;
}

.leaf text {
  opacity: 0;
}

text.parent {
  fill: #1f77b4;
}

circle.parent:hover {
  stroke: #ff7f0e;
  stroke-width: .5px;
}

config.ru

require './app'
run Sinatra::Application

d3.min.js

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Gemfile

source 'http://rubygems.org'
gem 'sinatra'

Gemfile.lock

GEM
  remote: http://rubygems.org/
  specs:
    rack (1.5.2)
    rack-protection (1.3.2)
      rack
    sinatra (1.3.4)
      rack (~> 1.4)
      rack-protection (~> 1.3)
      tilt (~> 1.3, >= 1.3.3)
    tilt (1.3.3)

PLATFORMS
  ruby

DEPENDENCIES
  sinatra

index.html

<!DOCTYPE html>
<html>
  <head>
    <title>Github Visualizer</title>
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radial-tree.css

.node circle {
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  stroke: steelblue;
  stroke-width: 1.5px;
}

.node {
  font: 10px sans-serif;
}

.link {
  fill: none;
  stroke: #ccc;
  stroke-width: 1.5px;
}