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Simple click to change location scatterplot
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| license: mit |
This file contains 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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