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Half matrix II

A different take on the previous experiment, this time using a color encoding and without complex cursors (hopefully resulting in a more readable code).

SIDE = 7
DIST = 8
svg = d3.select('svg')
width = svg.node().getBoundingClientRect().width
height = svg.node().getBoundingClientRect().height
vis = svg.append('g')
.attr
transform: "translate(#{width/2}, #{height-10})"
d3.json 'miserables.json', (data) ->
length = data.nodes.length
max = d3.max data.links, (d) -> d.value
cellcolor = (x) -> d3.hcl(270-40*x/max, 30-Math.pow(max/2-x,2)/400, 100-100*x/max)
# objectify the graph
data.links.forEach (l) ->
l.source = data.nodes[l.source]
l.target = data.nodes[l.target]
# store the index of the node within its object, in order to use it when placing link cells
data.nodes.forEach (d, i) ->
d.i = i
# draw the cells containing data
cells = vis.selectAll('.cell')
.data(data.links)
cells.enter().append('rect')
.attr
class: 'cell'
x: -SIDE/2
y: -SIDE/2
width: SIDE
height: SIDE
transform: (d) -> "rotate(-45) translate(#{(d.source.i-length/2)*DIST},#{(d.target.i-length/2)*DIST})"
fill: (d) -> cellcolor(d.value)
# draw the labels
PAD = 4
labels_a = vis.selectAll('.label_a')
.data(data.nodes.slice(1)) # first label is useless, the diagonal is not shown
labels_a.enter().append('text')
.each((d) -> d.label_a = d3.select(this))
.text((d) -> d.name)
.attr
class: 'label label_a'
dy: '0.35em'
transform: (d) -> "rotate(45) translate(#{-length/2*DIST-PAD-DIST/2},#{(-d.i+length/2)*DIST})"
labels_b = vis.selectAll('.label_b')
.data(data.nodes.slice(0,-1)) # last label is useless, the diagonal is not shown
labels_b.enter().append('text')
.each((d) -> d.label_b = d3.select(this))
.text((d) -> d.name)
.attr
class: 'label label_b'
dy: '0.35em'
transform: (d) -> "rotate(-45) translate(#{length/2*DIST+PAD-DIST/2},#{(d.i-length/2)*DIST})"
# create "interactive" cells to show the cursors
icells = []
d3.range(0, length).forEach (y) ->
d3.range(y+1, length).forEach (x) ->
icells.push {x: x, y: y, source: data.nodes[x], target: data.nodes[y]}
interactive_cells = vis.selectAll('.interactive_cell')
.data(icells)
interactive_cells.enter().append('rect')
.attr
class: 'interactive_cell'
x: -DIST/2
y: -DIST/2
width: DIST
height: DIST
transform: (d) -> "rotate(-45) translate(#{(d.x-length/2)*DIST},#{(d.y-length/2)*DIST})"
.on 'mouseenter', (d) ->
d.source.label_a.classed('highlighted_x', true)
d.target.label_b.classed('highlighted_y', true)
.on 'mouseleave', (d) ->
d.source.label_a.classed('highlighted_x', false)
d.target.label_b.classed('highlighted_y', false)
@font-face {
font-family: "Lacuna";
src: url("lacuna.ttf");
}
.label {
font-family: "Lacuna";
font-size: 8px;
}
.highlighted_x.label {
font-weight: bold;
fill: #E21975;
}
.highlighted_y.label {
font-weight: bold;
fill: #FF7100;
}
.label_a {
text-anchor: end;
}
.interactive_cell {
fill: transparent;
}
.interactive_cell:hover {
stroke: #FF3B1C;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Half matrix for symmetrical relations</title>
<link type="text/css" href="index.css" rel="stylesheet"/>
<script src="http://d3js.org/d3.v3.min.js"></script>
</head>
<body>
<svg height="500" width="960"></svg>
<script src="index.js"></script>
</body>
</html>
// Generated by CoffeeScript 1.4.0
(function() {
var DIST, SIDE, height, svg, vis, width;
SIDE = 7;
DIST = 8;
svg = d3.select('svg');
width = svg.node().getBoundingClientRect().width;
height = svg.node().getBoundingClientRect().height;
vis = svg.append('g').attr({
transform: "translate(" + (width / 2) + ", " + (height - 10) + ")"
});
d3.json('miserables.json', function(data) {
var PAD, cellcolor, cells, icells, interactive_cells, labels_a, labels_b, length, max;
length = data.nodes.length;
max = d3.max(data.links, function(d) {
return d.value;
});
cellcolor = function(x) {
return d3.hcl(270 - 40 * x / max, 30 - Math.pow(max / 2 - x, 2) / 400, 100 - 100 * x / max);
};
data.links.forEach(function(l) {
l.source = data.nodes[l.source];
return l.target = data.nodes[l.target];
});
data.nodes.forEach(function(d, i) {
return d.i = i;
});
cells = vis.selectAll('.cell').data(data.links);
cells.enter().append('rect').attr({
"class": 'cell',
x: -SIDE / 2,
y: -SIDE / 2,
width: SIDE,
height: SIDE,
transform: function(d) {
return "rotate(-45) translate(" + ((d.source.i - length / 2) * DIST) + "," + ((d.target.i - length / 2) * DIST) + ")";
},
fill: function(d) {
return cellcolor(d.value);
}
});
PAD = 4;
labels_a = vis.selectAll('.label_a').data(data.nodes.slice(1));
labels_a.enter().append('text').each(function(d) {
return d.label_a = d3.select(this);
}).text(function(d) {
return d.name;
}).attr({
"class": 'label label_a',
dy: '0.35em',
transform: function(d) {
return "rotate(45) translate(" + (-length / 2 * DIST - PAD - DIST / 2) + "," + ((-d.i + length / 2) * DIST) + ")";
}
});
labels_b = vis.selectAll('.label_b').data(data.nodes.slice(0, -1));
labels_b.enter().append('text').each(function(d) {
return d.label_b = d3.select(this);
}).text(function(d) {
return d.name;
}).attr({
"class": 'label label_b',
dy: '0.35em',
transform: function(d) {
return "rotate(-45) translate(" + (length / 2 * DIST + PAD - DIST / 2) + "," + ((d.i - length / 2) * DIST) + ")";
}
});
icells = [];
d3.range(0, length).forEach(function(y) {
return d3.range(y + 1, length).forEach(function(x) {
return icells.push({
x: x,
y: y,
source: data.nodes[x],
target: data.nodes[y]
});
});
});
interactive_cells = vis.selectAll('.interactive_cell').data(icells);
return interactive_cells.enter().append('rect').attr({
"class": 'interactive_cell',
x: -DIST / 2,
y: -DIST / 2,
width: DIST,
height: DIST,
transform: function(d) {
return "rotate(-45) translate(" + ((d.x - length / 2) * DIST) + "," + ((d.y - length / 2) * DIST) + ")";
}
}).on('mouseenter', function(d) {
d.source.label_a.classed('highlighted_x', true);
return d.target.label_b.classed('highlighted_y', true);
}).on('mouseleave', function(d) {
d.source.label_a.classed('highlighted_x', false);
return d.target.label_b.classed('highlighted_y', false);
});
});
}).call(this);
{
"nodes":[
{"name":"Myriel","group":1},
{"name":"Napoleon","group":1},
{"name":"Mlle.Baptistine","group":1},
{"name":"Mme.Magloire","group":1},
{"name":"CountessdeLo","group":1},
{"name":"Geborand","group":1},
{"name":"Champtercier","group":1},
{"name":"Cravatte","group":1},
{"name":"Count","group":1},
{"name":"OldMan","group":1},
{"name":"Labarre","group":2},
{"name":"Valjean","group":2},
{"name":"Marguerite","group":3},
{"name":"Mme.deR","group":2},
{"name":"Isabeau","group":2},
{"name":"Gervais","group":2},
{"name":"Tholomyes","group":3},
{"name":"Listolier","group":3},
{"name":"Fameuil","group":3},
{"name":"Blacheville","group":3},
{"name":"Favourite","group":3},
{"name":"Dahlia","group":3},
{"name":"Zephine","group":3},
{"name":"Fantine","group":3},
{"name":"Mme.Thenardier","group":4},
{"name":"Thenardier","group":4},
{"name":"Cosette","group":5},
{"name":"Javert","group":4},
{"name":"Fauchelevent","group":0},
{"name":"Bamatabois","group":2},
{"name":"Perpetue","group":3},
{"name":"Simplice","group":2},
{"name":"Scaufflaire","group":2},
{"name":"Woman1","group":2},
{"name":"Judge","group":2},
{"name":"Champmathieu","group":2},
{"name":"Brevet","group":2},
{"name":"Chenildieu","group":2},
{"name":"Cochepaille","group":2},
{"name":"Pontmercy","group":4},
{"name":"Boulatruelle","group":6},
{"name":"Eponine","group":4},
{"name":"Anzelma","group":4},
{"name":"Woman2","group":5},
{"name":"MotherInnocent","group":0},
{"name":"Gribier","group":0},
{"name":"Jondrette","group":7},
{"name":"Mme.Burgon","group":7},
{"name":"Gavroche","group":8},
{"name":"Gillenormand","group":5},
{"name":"Magnon","group":5},
{"name":"Mlle.Gillenormand","group":5},
{"name":"Mme.Pontmercy","group":5},
{"name":"Mlle.Vaubois","group":5},
{"name":"Lt.Gillenormand","group":5},
{"name":"Marius","group":8},
{"name":"BaronessT","group":5},
{"name":"Mabeuf","group":8},
{"name":"Enjolras","group":8},
{"name":"Combeferre","group":8},
{"name":"Prouvaire","group":8},
{"name":"Feuilly","group":8},
{"name":"Courfeyrac","group":8},
{"name":"Bahorel","group":8},
{"name":"Bossuet","group":8},
{"name":"Joly","group":8},
{"name":"Grantaire","group":8},
{"name":"MotherPlutarch","group":9},
{"name":"Gueulemer","group":4},
{"name":"Babet","group":4},
{"name":"Claquesous","group":4},
{"name":"Montparnasse","group":4},
{"name":"Toussaint","group":5},
{"name":"Child1","group":10},
{"name":"Child2","group":10},
{"name":"Brujon","group":4},
{"name":"Mme.Hucheloup","group":8}
],
"links":[
{"source":1,"target":0,"value":1},
{"source":2,"target":0,"value":8},
{"source":3,"target":0,"value":10},
{"source":3,"target":2,"value":6},
{"source":4,"target":0,"value":1},
{"source":5,"target":0,"value":1},
{"source":6,"target":0,"value":1},
{"source":7,"target":0,"value":1},
{"source":8,"target":0,"value":2},
{"source":9,"target":0,"value":1},
{"source":11,"target":10,"value":1},
{"source":11,"target":3,"value":3},
{"source":11,"target":2,"value":3},
{"source":11,"target":0,"value":5},
{"source":12,"target":11,"value":1},
{"source":13,"target":11,"value":1},
{"source":14,"target":11,"value":1},
{"source":15,"target":11,"value":1},
{"source":17,"target":16,"value":4},
{"source":18,"target":16,"value":4},
{"source":18,"target":17,"value":4},
{"source":19,"target":16,"value":4},
{"source":19,"target":17,"value":4},
{"source":19,"target":18,"value":4},
{"source":20,"target":16,"value":3},
{"source":20,"target":17,"value":3},
{"source":20,"target":18,"value":3},
{"source":20,"target":19,"value":4},
{"source":21,"target":16,"value":3},
{"source":21,"target":17,"value":3},
{"source":21,"target":18,"value":3},
{"source":21,"target":19,"value":3},
{"source":21,"target":20,"value":5},
{"source":22,"target":16,"value":3},
{"source":22,"target":17,"value":3},
{"source":22,"target":18,"value":3},
{"source":22,"target":19,"value":3},
{"source":22,"target":20,"value":4},
{"source":22,"target":21,"value":4},
{"source":23,"target":16,"value":3},
{"source":23,"target":17,"value":3},
{"source":23,"target":18,"value":3},
{"source":23,"target":19,"value":3},
{"source":23,"target":20,"value":4},
{"source":23,"target":21,"value":4},
{"source":23,"target":22,"value":4},
{"source":23,"target":12,"value":2},
{"source":23,"target":11,"value":9},
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]
}
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