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Last active September 18, 2015 02:23
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Focus + Context Scatter Plots
Raw
dataLoader.js
// 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 type = function (d){
numericColumns.forEach(function (column){
d[column.name] = +d[column.name];
});
return d;
}
d3.csv(path + ".csv", type, function(error, data) {
my.data = data;
});
});
}
});
return my;
}
Raw
index.html
<!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="http://curran.github.io/model/cdn/model-v0.2.4.js"></script>
<!-- Chiasm core and plugins. github.com/chiasm-project -->
<script src="http://chiasm-project.github.io/chiasm/chiasm-v0.2.0.js"></script>
<script src="http://chiasm-project.github.io/chiasm-component/chiasm-component-v0.2.1.js"></script>
<script src="http://chiasm-project.github.io/chiasm-layout/chiasm-layout-v0.2.2.js"></script>
<script src="http://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="scatterPlot.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 http://bl.ocks.org/mbostock/4343214 */
.brush .extent {
stroke: gray;
fill-opacity: .125;
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.scatterPlot = ScatterPlot;
// Set the Chaism configuration.
chiasm.setConfig({
"layout": {
"plugin": "layout",
"state": {
"containerSelector": "#chiasm-container",
"layout": {
"orientation": "horizontal",
"children": [
"context",
"focus"
]
}
}
},
"scatterPlotData": {
"plugin": "dataLoader",
"state": {
"path": "scatterPlotData"
}
},
"focus": {
"plugin": "scatterPlot",
"state": {
"xColumn": "sepal_length",
"yColumn": "petal_length"
}
},
"context": {
"plugin": "scatterPlot",
"state": {
"xColumn": "sepal_length",
"yColumn": "petal_length",
"brushEnabled": true,
"brushIntervalX": [5.3, 6.5],
"brushIntervalY": [3.2, 5.6]
}
},
"links": {
"plugin": "links",
"state": {
"bindings": [
"scatterPlotData.data -> focus.data",
"scatterPlotData.data -> context.data",
"context.brushIntervalX -> focus.xScaleDomain",
"context.brushIntervalY -> focus.yScaleDomain"
]
}
}
});
</script>
</body>
</html>
Raw
LICENSE
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.
Raw
scatterPlot.js
// This is an example Chaism plugin that uses D3 to make a scatter plot.
// Draws from this Scatter Plot example http://bl.ocks.org/curran/134ed87c99257e3f2e31
function ScatterPlot() {
var my = ChiasmComponent({
margin: {
left: 20,
top: 20,
right: 20,
bottom: 20
},
xColumn: Model.None,
yColumn: Model.None,
xScaleDomain: Model.None,
yScaleDomain: Model.None,
// "r" stands for radius.
rColumn: Model.None,
// The circle radius used if rColumn is not specified.
rDefault: 10,
// The range of the radius scale if rColumn is specified.
rMin: 0,
rMax: 10,
fill: "black",
stroke: "none",
strokeWidth: "1px",
brushEnabled: false,
brushIntervalX: Model.None,
brushIntervalY: Model.None
});
var xScale = d3.scale.linear();
var yScale = d3.scale.linear();
var rScale = d3.scale.sqrt();
var brush = d3.svg.brush()
.x(xScale)
.y(yScale)
.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("fill", "lightgray")
.style("stroke", "black")
.style("stroke-width", 1);
var circlesG = g.append("g")
.style("clip-path", "url(#clip)");
var brushG = g.append("g")
.attr("class", "brush");
// 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(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(d3.extent(data, function (d){ return d[yColumn]; }));
}
yScale.range([innerBox.height, 0]);
my.y = function (d){ return yScale(d[yColumn]); };
}
});
// Generate a function or constant for circle radius,
// depending on whether or not rColumn is defined.
my.when(["data", "rColumn", "rDefault", "rMin", "rMax"],
function (data, rColumn, rDefault, rMin, rMax){
if(rColumn === Model.None){
my.r = rDefault;
} else {
rScale
.domain(d3.extent(data, function (d){ return d[rColumn]; }))
.range([rMin, rMax]);
my.r = function (d){ return rScale(d[rColumn]); };
}
});
my.when([ "data", "x", "y", "r", "fill", "stroke", "strokeWidth" ],
function (data, x, y, r, fill, stroke, strokeWidth){
// Render the circles of the scatter plot.
var circles = circlesG.selectAll("circle").data(data);
circles.enter().append("circle");
circles.exit().remove();
circles
.attr("cx", x)
.attr("cy", y)
.attr("r", r)
.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() {
if(brush.empty()){
my.brushIntervalX = Model.None;
my.brushIntervalY = Model.None;
} else {
var e = brush.extent();
my.brushIntervalX = [e[0][0], e[1][0]];
my.brushIntervalY = [e[0][1], e[1][1]];
}
}
my.when(["brushIntervalX", "brushIntervalY", "x", "y"],
function (brushIntervalX, brushIntervalY){
if(brushIntervalX !== Model.None && brushIntervalY !== Model.None){
brush.extent([
[brushIntervalX[0], brushIntervalY[0]],
[brushIntervalX[1], brushIntervalY[1]]
]);
}
brushG.call(brush);
});
return my;
}
Raw
scatterPlotData.csv
sepal_length sepal_width petal_length petal_width class
5.0 3.4 1.5 0.2 setosa
4.8 3.4 1.6 0.2 setosa
5.1 3.5 1.4 0.3 setosa
5.4 3.4 1.7 0.2 setosa
5.0 3.4 1.6 0.4 setosa
4.4 3.0 1.3 0.2 setosa
5.0 3.5 1.3 0.3 setosa
4.6 3.2 1.4 0.2 setosa
6.9 3.1 4.9 1.5 versicolor
5.9 3.0 4.2 1.5 versicolor
5.8 2.7 4.1 1.0 versicolor
6.1 2.8 4.0 1.3 versicolor
5.7 2.6 3.5 1.0 versicolor
5.5 2.4 3.8 1.1 versicolor
5.6 3.0 4.1 1.3 versicolor
5.8 2.6 4.0 1.2 versicolor
5.1 2.5 3.0 1.1 versicolor
5.8 2.7 5.1 1.9 virginica
7.3 2.9 6.3 1.8 virginica
6.8 3.0 5.5 2.1 virginica
6.0 2.2 5.0 1.5 virginica
5.6 2.8 4.9 2.0 virginica
6.3 2.8 5.1 1.5 virginica
6.9 3.1 5.4 2.1 virginica
6.2 3.4 5.4 2.3 virginica
Raw
scatterPlotData.json
{
"columns": [
{ "name": "sepal_length", "type": "number" },
{ "name": "sepal_width", "type": "number" },
{ "name": "petal_length", "type": "number" },
{ "name": "petal_width", "type": "number" },
{ "name": "class", "type": "string" }
]
}
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