index.html
<html>
<head>
<title>Topic Clouds</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<script src="//d3js.org/d3.v2.min.js?2.10.0"></script>
<script type="text/javascript" src="d3.layout.cloud.js"></script>
</head>
<body>
<script>
wordScale=d3.scale.linear().domain([1,100,1000,10000]).range([10,20,40,80]).clamp(true);
wordColor=d3.scale.linear().domain([10,20,40,80]).range(["blue","green","orange","red"]);
for (x = 0; x < 3; x++) {
viz = d3.select("body").append("svg")
.attr("width", 400)
.attr("height", 440)
.attr("id", "svg" + x);
}
for (x = 0; x < 3; x++) {
d3.csv("topic_words"+x+".csv", function(topic) {
d3.layout.cloud().size([400, 400])
.words(topic)
.rotate(function() { return ~~(Math.random() * 2) * 5; })
.fontSize(function(d) { return wordScale(d.size); })
.on("end", draw)
.start();
function draw(words) {
viz = d3.select("#svg" + topic[0].topic);
viz.append("g")
.attr("transform", "translate(200,220)")
.selectAll("text")
.data(words)
.enter().append("text")
.style("font-size", function(d) { return d.size + "px"; })
.style("fill", function(d) { return wordColor(d.size); })
.style("opacity", .75)
.attr("text-anchor", "middle")
.attr("transform", function(d) {
return "translate(" + [d.x, d.y] + ")rotate(" + d.rotate + ")";
})
.text(function(d) { return d.text; });
viz
.append("text")
.data([topic[0]])
.style("font-size", 20)
.style("font-weight", 900)
.attr("x", 100)
.attr("y", 20)
.text(function(d) { return "TOPIC " + d.topic; })
}
})
}
</script>
d3.layout.cloud.js
(function(exports) {
function cloud() {
var size = [256, 256],
text = cloudText,
font = cloudFont,
fontSize = cloudFontSize,
rotate = cloudRotate,
padding = cloudPadding,
spiral = archimedeanSpiral,
words = [],
timeInterval = Infinity,
event = d3.dispatch("word", "end"),
timer = null,
cloud = {};
cloud.start = function() {
var board = zeroArray((size[0] >> 5) * size[1]),
bounds = null,
n = words.length,
i = -1,
tags = [],
data = words.map(function(d, i) {
return {
text: text.call(this, d, i),
font: font.call(this, d, i),
rotate: rotate.call(this, d, i),
size: ~~fontSize.call(this, d, i),
padding: cloudPadding.call(this, d, i)
};
}).sort(function(a, b) { return b.size - a.size; });
if (timer) clearInterval(timer);
timer = setInterval(step, 0);
step();
return cloud;
function step() {
var start = +new Date,
d;
while (+new Date - start < timeInterval && ++i < n && timer) {
d = data[i];
d.x = (size[0] * (Math.random() + .5)) >> 1;
d.y = (size[1] * (Math.random() + .5)) >> 1;
cloudSprite(d, data, i);
if (place(board, d, bounds)) {
tags.push(d);
event.word(d);
if (bounds) cloudBounds(bounds, d);
else bounds = [{x: d.x + d.x0, y: d.y + d.y0}, {x: d.x + d.x1, y: d.y + d.y1}];
d.x -= size[0] >> 1;
d.y -= size[1] >> 1;
}
}
if (i >= n) {
cloud.stop();
event.end(tags, bounds);
}
}
}
cloud.stop = function() {
if (timer) {
clearInterval(timer);
timer = null;
}
return cloud;
};
cloud.timeInterval = function(x) {
if (!arguments.length) return timeInterval;
timeInterval = x == null ? Infinity : x;
return cloud;
};
function place(board, tag, bounds) {
var perimeter = [{x: 0, y: 0}, {x: size[0], y: size[1]}],
startX = tag.x,
startY = tag.y,
maxDelta = Math.sqrt(size[0] * size[0] + size[1] * size[1]),
s = spiral(size),
dt = Math.random() < .5 ? 1 : -1,
t = -dt,
dxdy,
dx,
dy;
while (dxdy = s(t += dt)) {
dx = ~~dxdy[0];
dy = ~~dxdy[1];
if (Math.min(dx, dy) > maxDelta) break;
tag.x = startX + dx;
tag.y = startY + dy;
if (tag.x + tag.x0 < 0 || tag.y + tag.y0 < 0 ||
tag.x + tag.x1 > size[0] || tag.y + tag.y1 > size[1]) continue;
if (!bounds || !cloudCollide(tag, board, size[0])) {
if (!bounds || collideRects(tag, bounds)) {
var sprite = tag.sprite,
w = tag.width >> 5,
sw = size[0] >> 5,
lx = tag.x - (w << 4),
sx = lx & 0x7f,
msx = 32 - sx,
h = tag.y1 - tag.y0,
x = (tag.y + tag.y0) * sw + (lx >> 5),
last;
for (var j = 0; j < h; j++) {
last = 0;
for (var i = 0; i <= w; i++) {
board[x + i] |= (last << msx) | (i < w ? (last = sprite[j * w + i]) >>> sx : 0);
}
x += sw;
}
delete tag.sprite;
return true;
}
}
}
return false;
}
cloud.words = function(x) {
if (!arguments.length) return words;
words = x;
return cloud;
};
cloud.size = function(x) {
if (!arguments.length) return size;
size = [+x[0], +x[1]];
return cloud;
};
cloud.font = function(x) {
if (!arguments.length) return font;
font = d3.functor(x);
return cloud;
};
cloud.rotate = function(x) {
if (!arguments.length) return rotate;
rotate = d3.functor(x);
return cloud;
};
cloud.text = function(x) {
if (!arguments.length) return text;
text = d3.functor(x);
return cloud;
};
cloud.spiral = function(x) {
if (!arguments.length) return spiral;
spiral = spirals[x + ""] || x;
return cloud;
};
cloud.fontSize = function(x) {
if (!arguments.length) return fontSize;
fontSize = d3.functor(x);
return cloud;
};
cloud.padding = function(x) {
if (!arguments.length) return padding;
padding = d3.functor(x);
return cloud;
};
return d3.rebind(cloud, event, "on");
}
function cloudText(d) {
return d.text;
}
function cloudFont() {
return "serif";
}
function cloudFontSize(d) {
return Math.sqrt(d.value);
}
function cloudRotate() {
return (~~(Math.random() * 6) - 3) * 30;
}
function cloudPadding() {
return 1;
}
function cloudSprite(d, data, di) {
if (d.sprite) return;
c.clearRect(0, 0, (cw << 5) / ratio, ch / ratio);
var x = 0,
y = 0,
maxh = 0,
n = data.length;
di--;
while (++di < n) {
d = data[di];
c.save();
c.font = ~~((d.size + 1) / ratio) + "px " + d.font;
var w = c.measureText(d.text + "m").width * ratio,
h = d.size << 1;
if (d.rotate) {
var sr = Math.sin(d.rotate * cloudRadians),
cr = Math.cos(d.rotate * cloudRadians),
wcr = w * cr,
wsr = w * sr,
hcr = h * cr,
hsr = h * sr;
w = (Math.max(Math.abs(wcr + hsr), Math.abs(wcr - hsr)) + 0x1f) >> 5 << 5;
h = ~~Math.max(Math.abs(wsr + hcr), Math.abs(wsr - hcr));
} else {
w = (w + 0x1f) >> 5 << 5;
}
if (h > maxh) maxh = h;
if (x + w >= (cw << 5)) {
x = 0;
y += maxh;
maxh = 0;
}
if (y + h >= ch) break;
c.translate((x + (w >> 1)) / ratio, (y + (h >> 1)) / ratio);
if (d.rotate) c.rotate(d.rotate * cloudRadians);
c.fillText(d.text, 0, 0);
c.restore();
d.width = w;
d.height = h;
d.xoff = x;
d.yoff = y;
d.x1 = w >> 1;
d.y1 = h >> 1;
d.x0 = -d.x1;
d.y0 = -d.y1;
x += w;
}
var pixels = c.getImageData(0, 0, (cw << 5) / ratio, ch / ratio).data,
sprite = [];
while (--di >= 0) {
d = data[di];
var w = d.width,
w32 = w >> 5,
h = d.y1 - d.y0,
p = d.padding;
for (var i = 0; i < h * w32; i++) sprite[i] = 0;
x = d.xoff;
if (x == null) return;
y = d.yoff;
var seen = 0,
seenRow = -1;
for (var j = 0; j < h; j++) {
for (var i = 0; i < w; i++) {
var k = w32 * j + (i >> 5),
m = pixels[((y + j) * (cw << 5) + (x + i)) << 2] ? 1 << (31 - (i % 32)) : 0;
if (p) {
if (j) sprite[k - w32] |= m;
if (j < w - 1) sprite[k + w32] |= m;
m |= (m << 1) | (m >> 1);
}
sprite[k] |= m;
seen |= m;
}
if (seen) seenRow = j;
else {
d.y0++;
h--;
j--;
y++;
}
}
d.y1 = d.y0 + seenRow;
d.sprite = sprite.slice(0, (d.y1 - d.y0) * w32);
}
}
function cloudCollide(tag, board, sw) {
sw >>= 5;
var sprite = tag.sprite,
w = tag.width >> 5,
lx = tag.x - (w << 4),
sx = lx & 0x7f,
msx = 32 - sx,
h = tag.y1 - tag.y0,
x = (tag.y + tag.y0) * sw + (lx >> 5),
last;
for (var j = 0; j < h; j++) {
last = 0;
for (var i = 0; i <= w; i++) {
if (((last << msx) | (i < w ? (last = sprite[j * w + i]) >>> sx : 0))
& board[x + i]) return true;
}
x += sw;
}
return false;
}
function cloudBounds(bounds, d) {
var b0 = bounds[0],
b1 = bounds[1];
if (d.x + d.x0 < b0.x) b0.x = d.x + d.x0;
if (d.y + d.y0 < b0.y) b0.y = d.y + d.y0;
if (d.x + d.x1 > b1.x) b1.x = d.x + d.x1;
if (d.y + d.y1 > b1.y) b1.y = d.y + d.y1;
}
function collideRects(a, b) {
return a.x + a.x1 > b[0].x && a.x + a.x0 < b[1].x && a.y + a.y1 > b[0].y && a.y + a.y0 < b[1].y;
}
function archimedeanSpiral(size) {
var e = size[0] / size[1];
return function(t) {
return [e * (t *= .1) * Math.cos(t), t * Math.sin(t)];
};
}
function rectangularSpiral(size) {
var dy = 4,
dx = dy * size[0] / size[1],
x = 0,
y = 0;
return function(t) {
var sign = t < 0 ? -1 : 1;
switch ((Math.sqrt(1 + 4 * sign * t) - sign) & 3) {
case 0: x += dx; break;
case 1: y += dy; break;
case 2: x -= dx; break;
default: y -= dy; break;
}
return [x, y];
};
}
function zeroArray(n) {
var a = [],
i = -1;
while (++i < n) a[i] = 0;
return a;
}
var cloudRadians = Math.PI / 180,
cw = 1 << 11 >> 5,
ch = 1 << 11,
canvas,
ratio = 1;
if (typeof document !== "undefined") {
canvas = document.createElement("canvas");
canvas.width = 1;
canvas.height = 1;
ratio = Math.sqrt(canvas.getContext("2d").getImageData(0, 0, 1, 1).data.length >> 2);
canvas.width = (cw << 5) / ratio;
canvas.height = ch / ratio;
} else {
var Canvas = require("canvas");
canvas = new Canvas(cw << 5, ch);
}
var c = canvas.getContext("2d"),
spirals = {
archimedean: archimedeanSpiral,
rectangular: rectangularSpiral
};
c.fillStyle = "red";
c.textAlign = "center";
exports.cloud = cloud;
})(typeof exports === "undefined" ? d3.layout || (d3.layout = {}) : exports);
topic_words0.csv
text,size,topic access,1238,0 streets,1020,0 transportation,982,0 system,824,0 pedestrian,767,0 provide,763,0 bicycle,719,0 major,696,0 arterial,596,0 local,452,0 centers,415,0 service,388,0 connections,373,0 adjacent,337,0 arterials,335,0 facilities,317,0 modes,312,0 design,310,0 high,305,0 travel,284,0 areas,282,0 regional,275,0 serve,269,0 circulation,257,0 safe,241,0 vehicle,233,0 demand,228,0 roadway,223,0 improvements,218,0 corridors,211,0 capacity,208,0 activity,208,0 roadways,207,0 collector,202,0 modal,198,0 automobile,185,0 oriented,183,0 function,182,0 locations,182,0 light,174,0 convenient,172,0 trails,169,0 employment,156,0 classification,151,0 paths,151,0 designed,148,0 accommodate,136,0 primary,135,0 direct,135,0 type,131,0 wide,130,0 bicyclists,129,0 map,129,0 destinations,129,0 intersections,129,0 users,128,0 bikeways,126,0 complete,126,0 trail,120,0 bus,117,0 long,114,0 effective,113,0 providing,111,0 volumes,111,0 includes,110,0 standards,99,0 points,99,0 ride,99,0 truck,97,0 developments,97,0 emergency,94,0 bicycling,92,0 collectors,90,0 develop,86,0 motor,85,0 hours,80,0 additional,80,0 boulevard,79,0 balance,78,0 ridership,74,0 address,74,0 coordinate,72,0 serving,72,0 significant,72,0 stops,71,0 citywide,70,0 recreational,70,0 multiple,70,0 freeway,68,0 separated,68,0 minor,68,0 principal,68,0 highways,68,0 connect,66,0 amenities,66,0 landscaping,65,0 low,65,0 crossings,64,0 stop,64,0 sidewalks,63,0
topic_words1.csv
text,size,topic buildings,460,1 plan,451,1 policy,442,1 neighborhoods,327,1 civic,301,1 community,249,1 strategies,235,1 existing,222,1 lots,221,1 walkable,217,1 large,207,1 arroyos,203,1 concerns,196,1 map,183,1 goal,182,1 spaces,182,1 neighborhood,182,1 streets,180,1 network,137,1 regional,136,1 addressing,131,1 compact,123,1 historic,110,1 element,105,1 valley,105,1 center,103,1 central,102,1 infill,101,1 small,95,1 space,92,1 greens,91,1 step,91,1 principles,91,1 design,89,1 blocks,88,1 drainage,87,1 drive,86,1 ave,82,1 smartcode,81,1 complete,81,1 impact,80,1 goals,80,1 legend,80,1 critical,79,1 plans,79,1 vacant,75,1 cities,74,1 current,74,1 green,72,1 sector,69,1 provided,68,1 arroyo,67,1 create,67,1 walk,67,1 proposed,65,1 fees,64,1 housing,64,1 preferred,64,1 northeast,64,1 war,63,1 eastside,63,1 officials,63,1 alleys,63,1 lined,62,1 world,61,1 mixed,59,1 created,59,1 smart,58,1 time,57,1 site,57,1 important,57,1 westside,57,1 surrounding,56,1 shed,56,1 lands,55,1 auto,54,1 homes,54,1 farmland,51,1 schools,51,1 subdivision,50,1 multiway,50,1 valuable,49,1 face,49,1 mission,49,1 owned,48,1 add,47,1 urbanism,47,1 shade,47,1 form,46,1 fabric,46,1 upper,46,1 added,46,1 sense,46,1 irrigated,45,1 title,45,1 regulations,45,1 edges,44,1 connected,43,1 fields,43,1 long,43,1
topic_words3.csv
text,size,topic development,818,2 transit,746,2 centers,647,2 mixed,640,2 corridors,520,2 urban,443,2 city,414,2 oriented,388,2 building,359,2 areas,314,2 zoning,299,2 redevelopment,209,2 activity,198,2 blocks,195,2 districts,194,2 existing,190,2 vision,187,2 block,178,2 compact,166,2 investment,165,2 friendly,161,2 initiative,160,2 housing,158,2 standards,158,2 walking,154,2 develop,152,2 places,129,2 policies,127,2 people,125,2 stations,122,2 infill,117,2 options,114,2 sensitive,110,2 modal,108,2 walkable,106,2 design,105,2 quality,103,2 growth,103,2 creating,102,2 complete,101,2 key,99,2 private,91,2 homes,91,2 create,90,2 tod,88,2 encouraging,86,2 promotes,86,2 identify,83,2 concept,83,2 developments,83,2 mix,82,2 hubs,82,2 connected,81,2 direct,77,2 higher,77,2 vibrant,76,2 illustration,76,2 choices,75,2 built,74,2 includes,74,2 initiatives,73,2 core,68,2 corridor,67,2 scenario,65,2 jobs,64,2 shop,64,2 successful,64,2 type,62,2 principles,61,2 distance,59,2 practices,56,2 developer,53,2 destinations,53,2 exist,52,2 accommodate,51,2 sustainable,51,2 environment,51,2 central,50,2 patterns,49,2 developers,48,2 multifamily,48,2 future,47,2 pedestrian,47,2 small,46,2 investments,46,2 served,44,2 station,44,2 dense,42,2 trails,40,2 definition,40,2 similar,39,2 targeted,39,2 river,38,2 environments,38,2 natural,38,2 concentrations,36,2 walk,35,2 easy,35,2 university,35,2 boulevards,33,2