Focus + Context Area Charts using Chiasm.
Draws from
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Focus + Context Scatter Plots</title>
<!-- Chiasm depends on Lodash, D3.js, and Model.js. -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.1/lodash.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script>
<!-- A functional reactive model library. github.com/curran/model -->
<script src="//curran.github.io/model/cdn/model-v0.2.4.js"></script>
<!-- Chiasm core and plugins. github.com/chiasm-project -->
<script src="//chiasm-project.github.io/chiasm/chiasm-v0.2.0.js"></script>
<script src="//chiasm-project.github.io/chiasm-component/chiasm-component-v0.2.1.js"></script>
<script src="//chiasm-project.github.io/chiasm-layout/chiasm-layout-v0.2.2.js"></script>
<script src="//chiasm-project.github.io/chiasm-links/chiasm-links-v0.2.1.js"></script>
<!-- Custom Chiasm components for this example. -->
<script src="dataLoader.js"></script>
<script src="areaChart.js"></script>
<script src="bridge.js"></script>
<!-- Make the Chiasm container fill the page and have a 20px black border. -->
<style>
body {
background-color: black;
}
#chiasm-container {
background-color: white;
position: fixed;
left: 20px;
right: 20px;
top: 20px;
bottom: 20px;
}
/* Style the brush. Draws from //bl.ocks.org/mbostock/4343214 */
.brush .extent {
stroke: black;
fill-opacity: .2;
shape-rendering: crispEdges;
}
</style>
</head>
<body>
<!-- Chiasm component instances will be injected into this div. -->
<div id="chiasm-container"></div>
<script>
// Create a new Chiasm instance.
var chiasm = new Chiasm();
// Register plugins that the configuration can access.
chiasm.plugins.layout = ChiasmLayout;
chiasm.plugins.links = ChiasmLinks;
chiasm.plugins.dataLoader = DataLoader;
chiasm.plugins.areaChart = AreaChart;
chiasm.plugins.bridge = Bridge;
// Set the Chaism configuration.
chiasm.setConfig({
"layout": {
"plugin": "layout",
"state": {
"containerSelector": "#chiasm-container",
"layout": {
"orientation": "vertical",
"children": [
"focus",
"bridge",
"context"
]
},
"sizes": {
"focus": {
"size": 3
},
"bridge": {
"size": "20px"
}
}
}
},
"sp500": {
"plugin": "dataLoader",
"state": {
"path": "sp500"
}
},
"focus": {
"plugin": "areaChart",
"state": {
"xColumn": "date",
"yColumn": "price",
"fill": "gray",
"margin": {
"left": 20,
"top": 20,
"right": 20,
"bottom": 0
}
}
},
"context": {
"plugin": "areaChart",
"state": {
"xColumn": "date",
"yColumn": "price",
"fill": "#aaaaaa",
"backgroundColor": "white",
"border": "none",
"brushEnabled": true,
"brushIntervalX": [
"Sun, 30 Sep 2007 06:16:37 GMT",
"Mon, 19 Jan 2009 10:19:25 GMT"
],
"margin": {
"left": 20,
"top": 0,
"right": 20,
"bottom": 20
}
}
},
"bridge": {
"plugin": "bridge",
"state": {
"xColumn": "date"
}
},
"links": {
"plugin": "links",
"state": {
"bindings": [
"sp500.data -> focus.data",
"sp500.data -> context.data",
"sp500.data -> bridge.data",
"context.brushIntervalX -> focus.xScaleDomain",
"context.brushIntervalX -> bridge.brushIntervalX"
]
}
}
});
</script>
</body>
</html>
The MIT License (MIT)
Copyright (c) 2015 Curran Kelleher
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
function AreaChart() {
var my = ChiasmComponent({
margin: {
left: 20,
top: 20,
right: 20,
bottom: 20
},
xColumn: Model.None,
yColumn: Model.None,
xScaleDomain: Model.None,
yScaleDomain: Model.None,
fill: "black",
stroke: "none",
strokeWidth: "1px",
backgroundColor: "lightgray",
border: "black",
brushEnabled: false,
brushIntervalX: Model.None
});
var xScale = d3.time.scale();
var yScale = d3.scale.linear();
var brush = d3.svg.brush()
.x(xScale)
.on("brush", onBrush);
var svg = d3.select(my.initSVG());
var clipRect = svg
.append("clipPath")
.attr("id", "clip")
.append("rect");
var g = svg.append("g");
var borderRect = g.append("rect")
.style("stroke-width", 2);
var areaG = g.append("g")
.style("clip-path", "url(#clip)");
var path = areaG.append("path");
var area = d3.svg.area()
.interpolate("monotone");
var brushG = g.append("g")
.attr("class", "brush");
my.when("backgroundColor", function (backgroundColor){
borderRect.style("fill", backgroundColor);
});
my.when("border", function (border){
borderRect.style("stroke", border)
});
// Respond to changes in size and margin.
// Inspired by D3 margin convention from http://bl.ocks.org/mbostock/3019563
my.when(["box", "margin"], function(box, margin){
my.innerBox = {
width: box.width - margin.left - margin.right,
height: box.height - margin.top - margin.bottom
};
g.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
});
my.when(["innerBox"], function (innerBox){
borderRect
.attr("width", innerBox.width)
.attr("height", innerBox.height);
clipRect
.attr("width", innerBox.width)
.attr("height", innerBox.height);
});
my.when(["data", "innerBox", "xColumn", "xScaleDomain"],
function (data, innerBox, xColumn, xScaleDomain){
if(xColumn !== Model.None){
xScale.range([0, innerBox.width]);
if(xScaleDomain !== Model.None){
xScale.domain(parseDates(xScaleDomain));
} else {
xScale.domain(d3.extent(data, function (d){ return d[xColumn]; }));
}
my.x = function (d){ return xScale(d[xColumn]); };
}
});
my.when(["data", "innerBox", "yColumn", "yScaleDomain"],
function (data, innerBox, yColumn, yScaleDomain){
if(yColumn !== Model.None){
if(yScaleDomain !== Model.None){
yScale.domain(yScaleDomain);
} else {
yScale.domain([0, d3.max(data, function (d){ return d[yColumn]; })]);
}
yScale.range([innerBox.height, 0]);
my.y = function (d){ return yScale(d[yColumn]); };
}
});
my.when([ "data", "x", "y", "innerBox", "fill", "stroke", "strokeWidth" ],
function (data, x, y, innerBox, fill, stroke, strokeWidth){
area
.x(x)
.y0(innerBox.height)
.y1(y)
path
.datum(data)
.attr("d", area)
.attr("fill", fill)
.attr("stroke", stroke)
.attr("stroke-width", strokeWidth);
});
my.when("brushEnabled", function (brushEnabled){
brushG.remove();
if(brushEnabled){
g.node().appendChild(brushG.node());
}
});
function onBrush() {
my.brushIntervalX = brush.empty() ? Model.None : brush.extent();
}
function parseDates(dates){
return dates.map(function (date){
if(typeof date === Date){
return date;
} else {
return new Date(date);
}
});
}
my.when(["brushIntervalX", "innerBox", "x", "y"],
function (brushIntervalX, innerBox){
if(brushIntervalX !== Model.None){
brush.extent(parseDates(brushIntervalX));
// Uncomment this to see what the brush interval is as you drag.
//console.log(brushIntervalX.map(function (date){
// return date.toUTCString();
//}));
}
brushG.call(brush);
brushG.selectAll("rect")
.attr("y", 0)
.attr("height", innerBox.height);
});
return my;
}
function Bridge() {
var my = ChiasmComponent({
margin: {
left: 20,
top: 0,
right: 20,
bottom: 0
},
xColumn: Model.None,
yColumn: Model.None,
xScaleDomain: Model.None,
yScaleDomain: Model.None,
stroke: "black",
strokeWidth: "1px",
brushIntervalX: Model.None
});
var xScale = d3.time.scale();
var yScale = d3.scale.linear();
var svg = d3.select(my.initSVG());
var clipRect = svg
.append("clipPath")
.attr("id", "clip")
.append("rect");
var g = svg.append("g");
var areaG = g.append("g")
.style("clip-path", "url(#clip)");
var path = areaG.append("path");
var area = d3.svg.area()
.interpolate("monotone");
// Respond to changes in size and margin.
// Inspired by D3 margin convention from http://bl.ocks.org/mbostock/3019563
my.when(["box", "margin"], function(box, margin){
my.innerBox = {
width: box.width - margin.left - margin.right,
height: box.height - margin.top - margin.bottom
};
g.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
});
my.when(["data", "brushIntervalX", "innerBox", "xColumn", "xScaleDomain", "stroke", "strokeWidth"],
function (data, brushIntervalX, innerBox, xColumn, xScaleDomain, stroke, strokeWidth){
if(xColumn !== Model.None){
var extent = d3.extent(data, function (d){ return d[xColumn]; });
xScale.range([0, innerBox.width]);
xScale.domain(extent);
var linesData = [];
if(brushIntervalX !== Model.None){
brushIntervalX = parseDates(brushIntervalX);
var w = innerBox.width;
var h = innerBox.height;
var linesData = [
{
x1: xScale(brushIntervalX[1]),
y1: h,
x2: w,
y2: 0
},
{
x1: xScale(brushIntervalX[0]),
y1: h,
x2: 0,
y2: 0
}
];
}
var lines = g.selectAll("line").data(linesData);
lines.enter().append("line");
lines
.attr("x1", function (d) { return d.x1; })
.attr("y1", function (d) { return d.y1; })
.attr("x2", function (d) { return d.x2; })
.attr("y2", function (d) { return d.y2; })
.style("stroke-width", strokeWidth)
.style("stroke", stroke);
lines.exit().remove();
}
});
function parseDates(dates){
return dates.map(function (date){
if(typeof date === Date){
return date;
} else {
return new Date(date);
}
});
}
return my;
}
// A Chiasm plugin for loading DSV data sets.
function DataLoader (){
var my = ChiasmComponent({
path: Model.None
});
my.when("path", function (path){
if(path !== Model.None){
d3.json(path + ".json", function(error, schema) {
var numericColumns = schema.columns.filter(function (column){
return column.type === "number";
});
var dateColumns = schema.columns.filter(function (column){
return column.type === "date";
});
var type = function (d){
numericColumns.forEach(function (column){
d[column.name] = +d[column.name];
});
dateColumns.forEach(function (column){
d[column.name] = new Date(d[column.name]);
});
return d;
}
d3.csv(path + ".csv", type, function(error, data) {
my.data = data;
});
});
}
});
return my;
}
date,price
Jan 2000,1394.46
Feb 2000,1366.42
Mar 2000,1498.58
Apr 2000,1452.43
May 2000,1420.6
Jun 2000,1454.6
Jul 2000,1430.83
Aug 2000,1517.68
Sep 2000,1436.51
Oct 2000,1429.4
Nov 2000,1314.95
Dec 2000,1320.28
Jan 2001,1366.01
Feb 2001,1239.94
Mar 2001,1160.33
Apr 2001,1249.46
May 2001,1255.82
Jun 2001,1224.38
Jul 2001,1211.23
Aug 2001,1133.58
Sep 2001,1040.94
Oct 2001,1059.78
Nov 2001,1139.45
Dec 2001,1148.08
Jan 2002,1130.2
Feb 2002,1106.73
Mar 2002,1147.39
Apr 2002,1076.92
May 2002,1067.14
Jun 2002,989.82
Jul 2002,911.62
Aug 2002,916.07
Sep 2002,815.28
Oct 2002,885.76
Nov 2002,936.31
Dec 2002,879.82
Jan 2003,855.7
Feb 2003,841.15
Mar 2003,848.18
Apr 2003,916.92
May 2003,963.59
Jun 2003,974.5
Jul 2003,990.31
Aug 2003,1008.01
Sep 2003,995.97
Oct 2003,1050.71
Nov 2003,1058.2
Dec 2003,1111.92
Jan 2004,1131.13
Feb 2004,1144.94
Mar 2004,1126.21
Apr 2004,1107.3
May 2004,1120.68
Jun 2004,1140.84
Jul 2004,1101.72
Aug 2004,1104.24
Sep 2004,1114.58
Oct 2004,1130.2
Nov 2004,1173.82
Dec 2004,1211.92
Jan 2005,1181.27
Feb 2005,1203.6
Mar 2005,1180.59
Apr 2005,1156.85
May 2005,1191.5
Jun 2005,1191.33
Jul 2005,1234.18
Aug 2005,1220.33
Sep 2005,1228.81
Oct 2005,1207.01
Nov 2005,1249.48
Dec 2005,1248.29
Jan 2006,1280.08
Feb 2006,1280.66
Mar 2006,1294.87
Apr 2006,1310.61
May 2006,1270.09
Jun 2006,1270.2
Jul 2006,1276.66
Aug 2006,1303.82
Sep 2006,1335.85
Oct 2006,1377.94
Nov 2006,1400.63
Dec 2006,1418.3
Jan 2007,1438.24
Feb 2007,1406.82
Mar 2007,1420.86
Apr 2007,1482.37
May 2007,1530.62
Jun 2007,1503.35
Jul 2007,1455.27
Aug 2007,1473.99
Sep 2007,1526.75
Oct 2007,1549.38
Nov 2007,1481.14
Dec 2007,1468.36
Jan 2008,1378.55
Feb 2008,1330.63
Mar 2008,1322.7
Apr 2008,1385.59
May 2008,1400.38
Jun 2008,1280
Jul 2008,1267.38
Aug 2008,1282.83
Sep 2008,1166.36
Oct 2008,968.75
Nov 2008,896.24
Dec 2008,903.25
Jan 2009,825.88
Feb 2009,735.09
Mar 2009,797.87
Apr 2009,872.81
May 2009,919.14
Jun 2009,919.32
Jul 2009,987.48
Aug 2009,1020.62
Sep 2009,1057.08
Oct 2009,1036.19
Nov 2009,1095.63
Dec 2009,1115.1
Jan 2010,1073.87
Feb 2010,1104.49
Mar 2010,1140.45
{
"columns": [
{
"name": "date",
"type": "date"
},
{
"name": "price",
"type": "number"
}
]
}