Created
February 24, 2015 20:44
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d3 scatterplot with tooltip mouseover
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| </head> | |
| <body> | |
| <script> | |
| // data that you want to plot, I've used separate arrays for x and y values | |
| var data = [ | |
| { | |
| x: Math.random() * 10, | |
| y: Math.random() * 10 | |
| }, | |
| { | |
| x: Math.random() * 10, | |
| y: Math.random() * 10 | |
| }, | |
| { | |
| x: Math.random() * 10, | |
| y: Math.random() * 10 | |
| }, | |
| { | |
| x: Math.random() * 10, | |
| y: Math.random() * 10 | |
| } | |
| ]; | |
| xdata = [5, 10, 15, 20], | |
| ydata = [3, 17, 4, 6]; | |
| // size and margins for the chart | |
| var margin = { | |
| top: 20, | |
| right: 15, | |
| bottom: 60, | |
| left: 60 | |
| }, width = 500 - margin.left - margin.right, | |
| height = 400 - margin.top - margin.bottom; | |
| var x = d3.scale.linear() | |
| .domain([0, 10]) | |
| .range([0, width]); | |
| var y = d3.scale.linear() | |
| .domain([0, 10]) | |
| .range([height, 0]); | |
| var tip = d3.select('body') | |
| .append('div') | |
| .attr('class', 'tip') | |
| .html('I am a tooltip...') | |
| .style('border', '1px solid steelblue') | |
| .style('padding', '5px') | |
| .style('position', 'absolute') | |
| .style('display', 'none') | |
| .on('mouseover', function(d, i) { | |
| tip.transition().duration(0); | |
| }) | |
| .on('mouseout', function(d, i) { | |
| tip.style('display', 'none'); | |
| }); | |
| var chart = d3.select('body') | |
| .append('svg') | |
| .attr('width', width + margin.right + margin.left) | |
| .attr('height', height + margin.top + margin.bottom) | |
| .attr('class', 'chart') | |
| var main = chart.append('g') | |
| .attr('transform', 'translate(' + margin.left + ',' + margin.top + ')') | |
| .attr('width', width) | |
| .attr('height', height) | |
| .attr('class', 'main') | |
| // draw the x axis | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient('bottom'); | |
| main.append('g') | |
| .attr('transform', 'translate(0,' + height + ')') | |
| .attr('class', 'main axis date') | |
| .call(xAxis); | |
| // draw the y axis | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient('left'); | |
| main.append('g') | |
| .attr('transform', 'translate(0,0)') | |
| .attr('class', 'main axis date') | |
| .call(yAxis); | |
| // draw the graph object | |
| var g = main.append("svg:g"); | |
| g.selectAll("scatter-dots") | |
| .data(data) | |
| .enter().append("svg:circle") | |
| .attr("cy", function(d) { | |
| return y(d.y); | |
| }) | |
| .attr("cx", function(d, i) { | |
| return x(d.x); | |
| }) | |
| .attr("r", 10) | |
| .style("opacity", 0.6) | |
| .on('mouseover', function(d, i) { | |
| tip.transition().duration(0); | |
| tip.style('top', y(d.y) - 20 + 'px'); | |
| tip.style('left', x(d.x) + 'px'); | |
| tip.style('display', 'block'); | |
| }) | |
| .on('mouseout', function(d, i) { | |
| tip.transition() | |
| .delay(500) | |
| .style('display', 'none'); | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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