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Simple click to change location scatterplot
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| license: mit |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { text-align: center; } | |
| svg { margin-top: 50px; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var dataset = [ | |
| {x: 5, y: 20}, | |
| {x: 480, y: 300}, | |
| {x: 250, y: 50}, | |
| {x: 100, y: 380}, | |
| {x: 330, y: 470}, | |
| {x: 430, y: 150}, | |
| {x: 475, y: 90}, | |
| {x: 25, y: 160}, | |
| {x: 85, y: 60}, | |
| {x: 220, y: 220} | |
| ]; | |
| var height = 500; | |
| //Create SVG element | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 500) | |
| .attr("height", height); | |
| //Create circles within the SVG | |
| var circs = svg.selectAll("circle") | |
| .data(dataset) | |
| .enter().append("circle") | |
| .attr("cx", function(d) { return d.x; }) | |
| .attr("cy", function(d) { return d.y; }) | |
| .attr("r", 0) | |
| .style("fill", function(d) { return d3.hsl(d.y * 360 / height, 1, .5) }) | |
| .on("mouseover", function(d){ | |
| d3.select(this) | |
| .transition("growBig") | |
| .attr("r", Math.sqrt(d.y)*1.5); | |
| }) | |
| .on("mouseout", function(d){ | |
| d3.select(this) | |
| .transition("growSmall").duration(1000) | |
| .ease(d3.easeBounce) | |
| .attr("r", Math.sqrt(d.y)); | |
| }); | |
| //Transition at the start to make the grow | |
| circs | |
| .transition().duration(800) | |
| .attr("r", function(d) { return Math.sqrt(d.y); }); | |
| //On click, update with new data | |
| svg.on("click", function() { | |
| //New values for dataset | |
| dataset.forEach(function(d, i) { | |
| d.x = Math.floor(Math.random() * 470) + 15; //New random int for the x value | |
| d.y = Math.floor(Math.random() * 470) + 15; //New random int for the y value | |
| }); | |
| //Update the position and radius of the circles, but not the color | |
| svg.selectAll("circle") | |
| .data(dataset) | |
| .transition("move").duration(1000) | |
| .attr("cx", function(d) { return d.x; }) | |
| .attr("cy", function(d) { return d.y; }) | |
| .attr("r", function(d) { return Math.sqrt(d.y); }) | |
| //Optionally you can also change the colors by uncommenting the line below | |
| //.style("fill", function(d) { return d3.hsl(d.y * 360 / height, 1, .5) }) | |
| }); | |
| </script> | |
| </body> |
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