An example of a Scatter Plot component using a React-inspired pattern for stateless components.
forked from curran‘s block: Scatter Plot with Color Legend
<!DOCTYPE html>
<html>
<head>
<title>Solution</title>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3-legend/2.24.0/d3-legend.min.js"></script>
<style>
body {
margin: 0px;
}
.domain {
display: none;
}
.tick line {
stroke: #C0C0BB;
}
.tick text, .legendCells text {
fill: #8E8883;
font-size: 28pt;
font-family: sans-serif;
}
.axis-label, .legend-label {
fill: #635F5D;
font-size: 50pt;
font-family: sans-serif;
}
/* Make the chart container fill the page using CSS. */
#visualization {
position: fixed;
left: 0px;
right: 0px;
top: 0px;
bottom: 0px;
}
</style>
</head>
<body>
<div id="visualization"></div>
<script>
// A Scatter Plot component, using the revealing module pattern.
const ScatterPlot = (() => {
const xScale = d3.scaleLinear();
const yScale = d3.scaleLinear();
const colorScale = d3.scaleOrdinal()
.range(d3.schemeCategory10);
const xAxis = d3.axisBottom()
.scale(xScale)
.tickPadding(15);
const yAxis = d3.axisLeft()
.scale(yScale)
.ticks(5)
.tickPadding(15);
const colorLegend = d3.legendColor()
.scale(colorScale)
.shape('circle');
const defaults = {
margin: { left: 120, right: 300, top: 20, bottom: 120 },
colorLegendX: 60,
colorLegendY: 150,
colorLegendLabelX: -30,
colorLegendLabelY: -40,
xAxisLabelOffset: 100,
yAxisLabelOffset: -60,
circleOpacity: 1,
circleRadius: 10
};
return (svg, props) => {
const {
data,
width,
height,
xValue,
xLabel,
yValue,
yLabel,
colorValue,
colorLabel,
margin,
colorLegendX,
colorLegendY,
colorLegendLabelX,
colorLegendLabelY,
xAxisLabelOffset,
yAxisLabelOffset,
circleOpacity,
circleRadius,
} = Object.assign({}, defaults, props);
const innerWidth = width - margin.left - margin.right;
const innerHeight = height - margin.top - margin.bottom;
xAxis.tickSize(-innerHeight);
yAxis.tickSize(-innerWidth);
svg
.attr('width', width)
.attr('height', height);
let g = svg.selectAll('.container').data([null]);
const gEnter = g.enter().append('g').attr('class', 'container');
g = gEnter
.merge(g)
.attr('transform', `translate(${margin.left},${margin.top})`);
const xAxisGEnter = gEnter.append('g').attr('class', 'x-axis');
const xAxisG = xAxisGEnter
.merge(g.select('.x-axis'))
.attr('transform', `translate(0, ${innerHeight})`);
xAxisGEnter
.append('text')
.attr('class', 'axis-label')
.attr('y', xAxisLabelOffset)
.merge(xAxisG.select('.axis-label'))
.attr('x', innerWidth / 2)
.text(xLabel);
const yAxisGEnter = gEnter.append('g').attr('class', 'y-axis');
const yAxisG = yAxisGEnter.merge(g.select('.y-axis'));
yAxisGEnter
.append('text')
.attr('class', 'axis-label')
.attr('y', yAxisLabelOffset)
.style('text-anchor', 'middle')
.merge(yAxisG.select('.axis-label'))
.attr('x', -innerHeight / 2)
.attr('transform', `rotate(-90)`)
.text(yLabel);
const colorLegendGEnter = gEnter.append('g').attr('class', 'legend');
const colorLegendG = colorLegendGEnter
.merge(g.select('.legend'))
.attr('transform', `translate(${innerWidth + colorLegendX},${colorLegendY})`);
colorLegendGEnter
.append('text')
.attr('class', 'legend-label')
.attr('x', colorLegendLabelX)
.attr('y', colorLegendLabelY)
.merge(colorLegendG.select('legend-label'))
.text(colorLabel);
xScale
.domain(d3.extent(data, xValue))
.range([0, innerWidth])
.nice();
yScale
.domain(d3.extent(data, yValue))
.range([innerHeight, 0])
.nice();
const circles = g.selectAll('.mark').data(data);
circles
.enter().append('circle')
.attr('class', 'mark')
.attr('fill-opacity', circleOpacity)
.attr('r', circleRadius)
.merge(circles)
.attr('cx', d => xScale(xValue(d)))
.attr('cy', d => yScale(yValue(d)))
.attr('fill', d => colorScale(colorValue(d)));
xAxisG.call(xAxis);
yAxisG.call(yAxis);
colorLegendG.call(colorLegend)
.selectAll('.cell text')
.attr('dy', '0.1em');
}
})();
// The main entry point, which uses the Scatter Plot component.
function main(){
const visualization = d3.select('#visualization');
const visualizationDiv = visualization.node();
const svg = visualization.append('svg');
const row = d => {
d.petalLength = +d.petalLength;
d.petalWidth = +d.petalWidth;
d.sepalLength = +d.sepalLength;
d.sepalWidth = +d.sepalWidth;
return d;
};
d3.csv('iris.csv', row, data => {
// Render the scatter plot with updated width and height.
const render = () => {
ScatterPlot(svg, {
data,
width: visualizationDiv.clientWidth,
height: visualizationDiv.clientHeight,
xValue: d => d.sepalLength,
xLabel: 'Sepal Length',
yValue: d => d.petalLength,
yLabel: 'Petal Length',
colorValue: d => d.species,
colorLabel: 'Species',
circleOpacity: 0.6,
circleRadius: 8
});
}
// Draw for the first time to initialize.
render();
// Redraw based on the new size whenever the browser window is resized.
window.addEventListener('resize', render);
});
}
main();
</script>
</body>
</html>sepalLength,sepalWidth,petalLength,petalWidth,species
5.1,3.5,1.4,0.2,setosa
4.9,3.0,1.4,0.2,setosa
4.7,3.2,1.3,0.2,setosa
4.6,3.1,1.5,0.2,setosa
5.0,3.6,1.4,0.2,setosa
5.4,3.9,1.7,0.4,setosa
4.6,3.4,1.4,0.3,setosa
5.0,3.4,1.5,0.2,setosa
4.4,2.9,1.4,0.2,setosa
4.9,3.1,1.5,0.1,setosa
5.4,3.7,1.5,0.2,setosa
4.8,3.4,1.6,0.2,setosa
4.8,3.0,1.4,0.1,setosa
4.3,3.0,1.1,0.1,setosa
5.8,4.0,1.2,0.2,setosa
5.7,4.4,1.5,0.4,setosa
5.4,3.9,1.3,0.4,setosa
5.1,3.5,1.4,0.3,setosa
5.7,3.8,1.7,0.3,setosa
5.1,3.8,1.5,0.3,setosa
5.4,3.4,1.7,0.2,setosa
5.1,3.7,1.5,0.4,setosa
4.6,3.6,1.0,0.2,setosa
5.1,3.3,1.7,0.5,setosa
4.8,3.4,1.9,0.2,setosa
5.0,3.0,1.6,0.2,setosa
5.0,3.4,1.6,0.4,setosa
5.2,3.5,1.5,0.2,setosa
5.2,3.4,1.4,0.2,setosa
4.7,3.2,1.6,0.2,setosa
4.8,3.1,1.6,0.2,setosa
5.4,3.4,1.5,0.4,setosa
5.2,4.1,1.5,0.1,setosa
5.5,4.2,1.4,0.2,setosa
4.9,3.1,1.5,0.1,setosa
5.0,3.2,1.2,0.2,setosa
5.5,3.5,1.3,0.2,setosa
4.9,3.1,1.5,0.1,setosa
4.4,3.0,1.3,0.2,setosa
5.1,3.4,1.5,0.2,setosa
5.0,3.5,1.3,0.3,setosa
4.5,2.3,1.3,0.3,setosa
4.4,3.2,1.3,0.2,setosa
5.0,3.5,1.6,0.6,setosa
5.1,3.8,1.9,0.4,setosa
4.8,3.0,1.4,0.3,setosa
5.1,3.8,1.6,0.2,setosa
4.6,3.2,1.4,0.2,setosa
5.3,3.7,1.5,0.2,setosa
5.0,3.3,1.4,0.2,setosa
7.0,3.2,4.7,1.4,versicolor
6.4,3.2,4.5,1.5,versicolor
6.9,3.1,4.9,1.5,versicolor
5.5,2.3,4.0,1.3,versicolor
6.5,2.8,4.6,1.5,versicolor
5.7,2.8,4.5,1.3,versicolor
6.3,3.3,4.7,1.6,versicolor
4.9,2.4,3.3,1.0,versicolor
6.6,2.9,4.6,1.3,versicolor
5.2,2.7,3.9,1.4,versicolor
5.0,2.0,3.5,1.0,versicolor
5.9,3.0,4.2,1.5,versicolor
6.0,2.2,4.0,1.0,versicolor
6.1,2.9,4.7,1.4,versicolor
5.6,2.9,3.6,1.3,versicolor
6.7,3.1,4.4,1.4,versicolor
5.6,3.0,4.5,1.5,versicolor
5.8,2.7,4.1,1.0,versicolor
6.2,2.2,4.5,1.5,versicolor
5.6,2.5,3.9,1.1,versicolor
5.9,3.2,4.8,1.8,versicolor
6.1,2.8,4.0,1.3,versicolor
6.3,2.5,4.9,1.5,versicolor
6.1,2.8,4.7,1.2,versicolor
6.4,2.9,4.3,1.3,versicolor
6.6,3.0,4.4,1.4,versicolor
6.8,2.8,4.8,1.4,versicolor
6.7,3.0,5.0,1.7,versicolor
6.0,2.9,4.5,1.5,versicolor
5.7,2.6,3.5,1.0,versicolor
5.5,2.4,3.8,1.1,versicolor
5.5,2.4,3.7,1.0,versicolor
5.8,2.7,3.9,1.2,versicolor
6.0,2.7,5.1,1.6,versicolor
5.4,3.0,4.5,1.5,versicolor
6.0,3.4,4.5,1.6,versicolor
6.7,3.1,4.7,1.5,versicolor
6.3,2.3,4.4,1.3,versicolor
5.6,3.0,4.1,1.3,versicolor
5.5,2.5,4.0,1.3,versicolor
5.5,2.6,4.4,1.2,versicolor
6.1,3.0,4.6,1.4,versicolor
5.8,2.6,4.0,1.2,versicolor
5.0,2.3,3.3,1.0,versicolor
5.6,2.7,4.2,1.3,versicolor
5.7,3.0,4.2,1.2,versicolor
5.7,2.9,4.2,1.3,versicolor
6.2,2.9,4.3,1.3,versicolor
5.1,2.5,3.0,1.1,versicolor
5.7,2.8,4.1,1.3,versicolor
6.3,3.3,6.0,2.5,virginica
5.8,2.7,5.1,1.9,virginica
7.1,3.0,5.9,2.1,virginica
6.3,2.9,5.6,1.8,virginica
6.5,3.0,5.8,2.2,virginica
7.6,3.0,6.6,2.1,virginica
4.9,2.5,4.5,1.7,virginica
7.3,2.9,6.3,1.8,virginica
6.7,2.5,5.8,1.8,virginica
7.2,3.6,6.1,2.5,virginica
6.5,3.2,5.1,2.0,virginica
6.4,2.7,5.3,1.9,virginica
6.8,3.0,5.5,2.1,virginica
5.7,2.5,5.0,2.0,virginica
5.8,2.8,5.1,2.4,virginica
6.4,3.2,5.3,2.3,virginica
6.5,3.0,5.5,1.8,virginica
7.7,3.8,6.7,2.2,virginica
7.7,2.6,6.9,2.3,virginica
6.0,2.2,5.0,1.5,virginica
6.9,3.2,5.7,2.3,virginica
5.6,2.8,4.9,2.0,virginica
7.7,2.8,6.7,2.0,virginica
6.3,2.7,4.9,1.8,virginica
6.7,3.3,5.7,2.1,virginica
7.2,3.2,6.0,1.8,virginica
6.2,2.8,4.8,1.8,virginica
6.1,3.0,4.9,1.8,virginica
6.4,2.8,5.6,2.1,virginica
7.2,3.0,5.8,1.6,virginica
7.4,2.8,6.1,1.9,virginica
7.9,3.8,6.4,2.0,virginica
6.4,2.8,5.6,2.2,virginica
6.3,2.8,5.1,1.5,virginica
6.1,2.6,5.6,1.4,virginica
7.7,3.0,6.1,2.3,virginica
6.3,3.4,5.6,2.4,virginica
6.4,3.1,5.5,1.8,virginica
6.0,3.0,4.8,1.8,virginica
6.9,3.1,5.4,2.1,virginica
6.7,3.1,5.6,2.4,virginica
6.9,3.1,5.1,2.3,virginica
5.8,2.7,5.1,1.9,virginica
6.8,3.2,5.9,2.3,virginica
6.7,3.3,5.7,2.5,virginica
6.7,3.0,5.2,2.3,virginica
6.3,2.5,5.0,1.9,virginica
6.5,3.0,5.2,2.0,virginica
6.2,3.4,5.4,2.3,virginica
5.9,3.0,5.1,1.8,virginica