-
Notifications
You must be signed in to change notification settings - Fork 0
/
hubway.php
210 lines (156 loc) · 4.79 KB
/
hubway.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
<html>
<head>
<script src="http://d3js.org/d3.v2.js"></script>
<style>
@import url(../style.css?20120427);
#circle circle {
fill: none;
pointer-events: all;
}
.group path {
fill-opacity: .5;
}
path.chord {
stroke: #000;
stroke-width: .25px;
}
#circle:hover path.fade {
display: none;
}
</style>
</head>
<body>
<div id="visualization"></div>
<div id="myChord"></div>
<div id="txtHint"></div>
<script>
var myData;
function showUser(){
if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else {// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200){
//state is ready and data is good
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
myData = JSON.parse(xmlhttp.responseText);
redraw();
}
}
//call function to get data
xmlhttp.open("GET","http://hubwaydatachallenge.org/api/v1/station/?format=json&username=shred444&api_key=fa798c85d5ad57a1c3010fa916953d9407596349",true);
xmlhttp.send();
}
showUser();
var w = 500;
var h = 400;
function redraw(){
xMin = Math.min.apply(Math, myData.objects.map(function(o){ return o.point.coordinates[0]; }));
xMax = Math.max.apply(Math, myData.objects.map(function(o){ return o.point.coordinates[0]; }));
var xScale = d3.scale.linear()
.domain([xMin, xMax])
.range([0,w]);
yMin = Math.min.apply(Math, myData.objects.map(function(o){ return o.point.coordinates[1]; }));
yMax = Math.max.apply(Math, myData.objects.map(function(o){ return o.point.coordinates[1]; }));
var yScale = d3.scale.linear()
.domain([yMin, yMax])
.range([h,0]);
var hub = d3.select("#visualization")
.append("svg")
.attr("width", w)
.attr("height", h);
hub.selectAll("circle")
.data(myData.objects)
.enter()
.append("circle")
.attr("cx", function(d){
return xScale(d.point.coordinates[0]);
})
.attr("cy", function(d){
return yScale(d.point.coordinates[1]);
})
.attr("r", 5)
.attr("fill", "red");
var width = 720,
height = 720,
outerRadius = Math.min(width, height) / 2 - 10,
innerRadius = outerRadius - 24;
var formatPercent = d3.format(".1%");
var arc = d3.svg.arc()
.innerRadius(innerRadius)
.outerRadius(outerRadius);
var layout = d3.layout.chord()
.padding(.04)
.sortSubgroups(d3.descending)
.sortChords(d3.ascending);
var path = d3.svg.chord()
.radius(innerRadius);
var svg = d3.select("#myChord").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("id", "circle")
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
svg.append("circle")
.attr("r", outerRadius);
d3.csv("cities.csv", function(cities) {
d3.json("matrix.json", function(matrix) {
// Compute the chord layout.
layout.matrix(matrix);
// Add a group per neighborhood.
var group = svg.selectAll(".group")
.data(layout.groups)
.enter().append("g")
.attr("class", "group")
.on("mouseover", mouseover);
// Add a mouseover title.
group.append("title").text(function(d, i) {
return cities[i].name + ": " + formatPercent(d.value) + " of origins";
});
// Add the group arc.
var groupPath = group.append("path")
.attr("id", function(d, i) { return "group" + i; })
.attr("d", arc)
.style("fill", function(d, i) { return cities[i].color; });
// Add a text label.
var groupText = group.append("text")
.attr("x", 6)
.attr("dy", 15);
groupText.append("textPath")
.attr("xlink:href", function(d, i) { return "#group" + i; })
.text(function(d, i) { return cities[i].name; });
// Remove the labels that don't fit. :(
groupText.filter(function(d, i) { return groupPath[0][i].getTotalLength() / 2 - 16 < this.getComputedTextLength(); })
.remove();
// Add the chords.
var chord = svg.selectAll(".chord")
.data(layout.chords)
.enter().append("path")
.attr("class", "chord")
.style("fill", function(d) { return cities[d.source.index].color; })
.attr("d", path);
// Add an elaborate mouseover title for each chod.
chord.append("title").text(function(d) {
return cities[d.source.index].name
+ " ? " + cities[d.target.index].name
+ ": " + formatPercent(d.source.value)
+ "\n" + cities[d.target.index].name
+ " ? " + cities[d.source.index].name
+ ": " + formatPercent(d.target.value);
});
function mouseover(d, i) {
chord.classed("fade", function(p) {
return p.source.index != i
&& p.target.index != i;
});
}
});
});
}
</script>
</body>
</html>