Airline Noise

Developer
Nick Walsh
Size
3,484 Kb
Views
20,240
  1. Airline Noise Previews
  2. Airline Noise HTML Codes
  3. Airline Noise CSS Codes
  4. Airline Noise JS Codes

How do I make an airline noise?

After finding noise contour data from the Orlando International and Orlando Executive Airports (for 2003), I wanted to compare those areas with the flight paths of planes nowadays--specifically, a 24-hour block between August 13th and 14th.. What is a airline noise? How do you make a airline noise? This script and codes were developed by Nick Walsh on 06 November 2022, Sunday.

Airline Noise Previews
IQ Test

Airline Noise - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Airline Noise</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css"> <style> /* NOTE: The styles were added inline because Prefixfree needs access to your styles and they must be inlined if they are on local disk! */ html,
body { overflow: hidden;
}
canvas { background: #222; display: block;
} </style> <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
</head>
<body> <script src='http://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js'></script>
<script src='http://s3-us-west-2.amazonaws.com/s.cdpn.io/68727/topojson.js'></script> <script src="js/index.js"></script>
</body>
</html>

Airline Noise - Script Codes CSS Codes

html,
body { overflow: hidden;
}
canvas { background: #222; display: block;
}

Airline Noise - Script Codes JS Codes

// -------------------------------------
// Setup
// -------------------------------------
var height = window.innerHeight;
var width = window.innerWidth;
var canvas = d3.select('body').append('canvas') .attr('height', height) .attr('width', width);
var ctx = canvas.node().getContext('2d');
var pixelRatio = window.devicePixelRatio;
if (pixelRatio > 1) { canvas.attr('height', height * pixelRatio); canvas.attr('width', width * pixelRatio); ctx.scale(pixelRatio, pixelRatio); canvas.attr('style', 'height:' + height + 'px; width:' + width + 'px;');
}
var projection = d3.geo.mercator() .center([-81.3503157, 28.4583811]) .scale(d3.min([width, height]) * 125) .translate([width / 2, height / 2]);
var path = d3.geo.path() .projection(projection) .context(ctx);
// -------------------------------------
// Utility
// -------------------------------------
// http://stackoverflow.com/questions/7054272/how-to-draw-smooth-curve-through-n-points-using-javascript-html5-canvas
function drawCurve(ctx, ptsa, numOfSegments) { pts = getCurvePoints(ptsa, numOfSegments); ctx.moveTo(pts[0], pts[1]); for(x = 2; x < pts.length - 1; x += 2) { ctx.lineTo(pts[x], pts[x + 1]); }
}
function getCurvePoints(ptsa, numOfSegments) { var tension = 0.5; var numOfSegments = 25; var _pts = [], res = [], x, y, t1x, t2x, t1y, t2y, c1, c2, c3, c4, st, t, i; _pts = ptsa.slice(0); _pts.unshift(ptsa[1]); _pts.unshift(ptsa[0]); _pts.push(ptsa[ptsa.length - 2]); _pts.push(ptsa[ptsa.length - 1]); for (t = 2; t < (_pts.length - 4); t += 2) { for (tt = 0; tt <= numOfSegments; tt++) { t1x = (_pts[t + 2] - _pts[t - 2]) * tension; t2x = (_pts[t + 4] - _pts[t]) * tension; t1y = (_pts[t + 3] - _pts[t - 1]) * tension; t2y = (_pts[t + 5] - _pts[t + 1]) * tension; st = tt / numOfSegments; c1 = 2 * Math.pow(st, 3) - 3 * Math.pow(st, 2) + 1; c2 = -(2 * Math.pow(st, 3)) + 3 * Math.pow(st, 2); c3 = Math.pow(st, 3) - 2 * Math.pow(st, 2) + st; c4 = Math.pow(st, 3) - Math.pow(st, 2); x = c1 * _pts[t] + c2 * _pts[t+2] + c3 * t1x + c4 * t2x; y = c1 * _pts[t+1] + c2 * _pts[t+3] + c3 * t1y + c4 * t2y; res.push(x); res.push(y); } } return res;
}
// -------------------------------------
// Load
// -------------------------------------
d3.json('//s3-us-west-2.amazonaws.com/s.cdpn.io/68727/features.json', function(error, data) { // ----- Land ----- // ctx.beginPath(); path(topojson.feature(data, data.objects.land)); ctx.fillStyle = '#3f3f3f'; ctx.fill(); // ----- Streets ----- // ctx.beginPath(); path(topojson.feature(data, data.objects.streets)); ctx.lineWidth = '0.5'; ctx.strokeStyle = '#111'; ctx.stroke(); // ----- Contours ----- // ctx.globalCompositeOperation = "lighter"; var contours = topojson.feature(data, data.objects.noise).features; for (i = 0; i < contours.length; i++) { ctx.beginPath(); path(contours[i]); ctx.fillStyle = 'rgba(255, 50, 50, ' + (6 - contours[i].properties.zone) * 0.2 + ')'; ctx.fill(); } // ----- Paths ----- // ctx.fillStyle = 'rgba(100, 150, 255, 0.01)' ctx.lineWidth = '0.75'; ctx.strokeStyle = 'rgba(100, 150, 255, 0.25)'; d3.json('//s3-us-west-2.amazonaws.com/s.cdpn.io/68727/data.json', function(error, data) { var counter = 0; var draw = function() { if (data.data[counter] !== undefined) { var newPath = []; for (i = 0; i < data.data[counter].length; i++) { var coords = projection(data.data[counter][i]); newPath.push(coords[0], coords[1]); } ctx.beginPath(); drawCurve(ctx, newPath); ctx.stroke(); ctx.fill(); counter++; requestAnimationFrame(draw); } } draw(); });
});
Airline Noise - Script Codes
Airline Noise - Script Codes
Home Page Home
Developer Nick Walsh
Username nickawalsh
Uploaded November 06, 2022
Rating 3
Size 3,484 Kb
Views 20,240
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