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Last active April 11, 2018 21:24
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Piers Plowman A MSS Stemma in Radial Form

The tree layout implements the Reingold-Tilford algorithm for efficient, tidy arrangement of layered nodes. The depth of nodes is computed by distance from the root, leading to a ragged appearance. Cartesian orientations are also supported. Implementation based on work by Jeff Heer and Jason Davies using Buchheim et al.'s linear-time variant of the Reingold-Tilford algorithm. Data shows the Flare class hierarchy, also courtesy Jeff Heer.

Compare to this Cartesian layout.

{"name": "Ax-A archetype",
"children": [
{"name": "*r*",
"children": [
{"name": "r1",
"children": [
{"name": "d",
"children": [
{"name": "t",
"children": [
{"name": "th2",
"children": [
{"name": "(AC) TCC R.3.14 c. 1400"
},
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "(AC) HARLEY 6041 ca. 1425"
}
]
}
]
}
]
},
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "(AC) CHADERTON 1420"
}
]
}
]
}
]
},
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "Douce 323 1475-1500"
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
]
},
{"name": "u",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "Rawl. 137 mid-15th C"
}
]
}
]
}
]
},
{"name": "Uni Coll Ox 45 1400-1425"
}
]
}
]
}
]
}
]
}
]
},
{"name": "r2",
"children": [
{"name": "v",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "Vernon c.1400"
},
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "Harley 875 ca. 1425-1475"
}
]
}
]
}
]
}
]
}
]
}
]
}
]
},
{"name": "j",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "Ingilby mid-15th C"
}
]
}
]
}
]
}
]
}
]
}
]
}
]
},
{"name": "l",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "Lincoln's Inn 1400-1425"
}
]
}
]
}
]
}
]
},
{"name": "k",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "(AC) DIGBY 145 1531"
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
]
},
{"name": "w",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "(AC) OLIM. DUKE OF W'S MS 1400-1425"
},
{"name": "(AC) NLW 733B 1400-1425"
}
]
}
]
}
]
}
]
},
{"name": "(z)",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "(ZAC) A VISIO ENDING + C ADDED 1439-1450"
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
]
},
{"name": "*m*",
"children": [
{"name": "e",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "TCD 213 1450-1500"
},
{"name": " ",
"children": [
{"name": "Ashmole 1475-1500"
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
]
},
{"name": "m",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "Soc. of Antiquaries 687 ca. 1425"
}
]
},
{"name": "(BA) HARLEY 3954 1400-1425"
}
]
}
]
}
]
}
]
}
]
},
{"name": "y",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": " ",
"children": [
{"name": "OR (AC) DUKE'S MS from here? 1400-1425"
}
]
}
]
}
]
}
]
}
]
}
]
}
]
}
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.node circle {
fill: #fff;
stroke: steelblue;
stroke-width: 1.5px;
}
.node {
font: 10px sans-serif;
}
.link {
fill: none;
stroke: #ccc;
stroke-width: 1.5px;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var diameter = 960;
var tree = d3.layout.tree()
.size([360, diameter / 2 - 120])
.separation(function(a, b) { return (a.parent == b.parent ? 1 : 2) / a.depth; });
var diagonal = d3.svg.diagonal.radial()
.projection(function(d) { return [d.y, d.x / 180 * Math.PI]; });
var svg = d3.select("body").append("svg")
.attr("width", diameter)
.attr("height", diameter - 150)
.append("g")
.attr("transform", "translate(" + diameter / 2 + "," + diameter / 2 + ")");
d3.json("Astemma2.json", function(error, root) {
var nodes = tree.nodes(root),
links = tree.links(nodes);
var link = svg.selectAll(".link")
.data(links)
.enter().append("path")
.attr("class", "link")
.attr("d", diagonal);
var node = svg.selectAll(".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) { return d.x < 180 ? "start" : "end"; })
.attr("transform", function(d) { return d.x < 180 ? "translate(8)" : "rotate(180)translate(-8)"; })
.text(function(d) { return d.name; });
});
d3.select(self.frameElement).style("height", diameter - 150 + "px");
</script>
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