Some life added to hexagonal binning.
forked from maartenzam's block: Living hexagonal binning
Created
February 27, 2018 11:13
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Living hexagonal binning
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| license: mit |
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| <!DOCTYPE html> | |
| <style> | |
| .hexagon { | |
| stroke: #000; | |
| stroke-width: 0.5px; | |
| } | |
| </style> | |
| <svg width="960" height="600"></svg> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://d3js.org/d3-hexbin.v0.2.min.js"></script> | |
| <script> | |
| var svg = d3.select("svg"), | |
| margin = {top: 20, right: 20, bottom: 30, left: 40}, | |
| width = +svg.attr("width") - margin.left - margin.right, | |
| height = +svg.attr("height") - margin.top - margin.bottom, | |
| g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| var randomX = d3.randomNormal(width / 2, 80), | |
| randomY = d3.randomNormal(height / 2, 80), | |
| points = d3.range(2000).map(function() { return [randomX(), randomY()]; }); | |
| var color = d3.scaleSequential(d3.interpolateLab("white", "steelblue")) | |
| .domain([0, 20]); | |
| var hexbin = d3.hexbin() | |
| .radius(20) | |
| .extent([[0, 0], [width, height]]); | |
| var x = d3.scaleLinear() | |
| .domain([0, width]) | |
| .range([0, width]); | |
| var y = d3.scaleLinear() | |
| .domain([0, height]) | |
| .range([height, 0]); | |
| var hexes = g.append("g") | |
| .attr("class", "hexagon") | |
| .selectAll("path") | |
| .data(hexbin(points)) | |
| .enter().append("path") | |
| .attr("d", hexbin.hexagon()) | |
| .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; }) | |
| .attr("fill", function(d) { return color(d.length); }) | |
| .style("opacity", 0.5); | |
| window.setInterval(function(){ | |
| var rand = Math.random()*100; | |
| hexes.transition() | |
| .duration(1000) | |
| .delay(function(d,i){ return 9*i; }) | |
| .attr("d", hexbin.hexagon(rand)); | |
| }, 1000); | |
| </script> |
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