gaiavis/stars_better.html at master · akademy/gaiavis · GitHub

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<!DOCTYPE HTML>
<html>
	<head>
		<meta charset="utf-8">
        <style></style>
	</head>
	<body>
	<h1>Two hundred thousand Gaia positioned stars</h1>
	<p>See my blog for info about this <a href="http://blog.akademy.co.uk/2016/09/gaia-star-data-with-d3-part-2-prettier-faster/">http://blog.akademy.co.uk/2016/09/gaia-star-data-with-d3-part-2-prettier-faster/</a></p>
	<p>See an animated simpler version here:  <a href="http://vis.akademy.uk/gaia/stars.html">http://vis.akademy.uk/gaia/stars.html</a></p>

	<p>It might take a while to generate this, please be patient: <span id="update" style="color:red">Working...</span></p>


	<div></div>

	<p style="max-width:1000px;line-height:1.5;">This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.</p>


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					.call(d3.axisLeft(yScale));

			document.getElementById("update").innerText = "Loading...";

			var csvfile = "csvs/stars_skip10_[ra-dec-flux].csv";
			//csvfile = "csvs/stars_skip100_[ra-dec-flux].csv";
			d3.csv(csvfile, function (d) {
				return [d.ra * 1, d.dec * 1, d.flux * 1];
			}, function (data) {

				var ira = 0, idec = 1, iflux = 2;
				var total = data.length;

				data.sort(function (d, e) {
					return d[iflux] - e[iflux]; // bright ones appear at end of list
				});

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						.range([0.5, 3])
						.domain(extentFlux);

				var fluxOpacityScale = d3.scaleLog()
						.range([0.1,1])
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				console.log( total + " stars");

				setTimeout( function() {
					var g = document.createElementNS("http://www.w3.org/2000/svg", "g");
					g.id = "stars";

					for (var i = 0; i < data.length; i++) {
						g.appendChild(document.createElementNS("http://www.w3.org/2000/svg", "circle"));
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					svg.node().appendChild(g);

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					setTimeout( function() {

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							.style("pointer-events", "none")
							.style("fill", "white")
							.style("stroke-width", "0")
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						document.getElementById("update").innerText = "Displaying...";
						console.log("updated values");

						setTimeout( function() {
							document.getElementById("update").innerText = "Done"; // maybe...

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								console.log("Updating flux");
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									.range([0,0.8])
									.domain(extentFlux);

								svg.select("g#stars")
									.selectAll("circle")
									.data(data)
									.transition()
									.duration(5000)
									.style("opacity", function (d) {
										return fluxOpacityScale(d[iflux]);
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								;

								console.log("Done");
							}, 3000 );*/

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					}, 50 );
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	}
 </script>
 </body>
 </html>