swellcloud/index.html at main · themissioncode/swellcloud · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="">
    <meta name="author" content="Mark Otto, Jacob Thornton, and Bootstrap contributors">
    <meta name="generator" content="Hugo 0.79.0">
    <title>Starter Template · Bootstrap v5.0</title>

    <link rel="canonical" href="https://getbootstrap.com/docs/5.0/examples/starter-template/">
	  <script
      type="text/javascript"
      src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.1.9/p5.js"
    ></script>


    <!-- Bootstrap core CSS -->
<link href="../assets/dist/css/bootstrap.min.css" rel="stylesheet">
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<link href="../assets/dist/css/custom.css" rel="stylesheet">

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  <body>

<nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top">
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    <a class="navbar-brand" href="#"><!--Navbar--></a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation">
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    <div class="collapse navbar-collapse" id="navbarsExampleDefault">
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            <li><a class="dropdown-item" href="#">Action</a></li>
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</nav>

<main class="container">
	<div class="starter-template text-center py-5 px-3">


      <p>This animation is driven by real time live data from the <a href="https://www.channelcoast.org/realtimedata/">Channel Coast</a> Porthleven wavebuoy.</p>
          <p>The higher the peaks the bigger the swell, the smoother the waves the higher the swel period.</p>
<p><span id="surfheight"></span>m high <br></p>
    <p>at <span id="surfperiod"></span> seconds</p>
	 </div>


	<script>
      // we make these variables global so we know when they have loaded
      let surfheight, surfperiod;

      fetch(
        "https://data.channelcoast.org/observations/waves/latest?key=6cefd36d8e12a4dead4cf06d4dbd09c0"
      )
        .then(function (resp) {
          return resp.text();
        })
        .then(function (data) {
          //console.log(data);
          let parser = new DOMParser(),
            xmlDoc = parser.parseFromString(data, "text/xml");
          //console.log(xmlDoc.getElementsByTagName('ms:hs')[36].innerHTML); //76=Perran,36 Porthleven
          surfheight = xmlDoc.getElementsByTagName("ms:hs")[36].innerHTML;
          surfperiod = xmlDoc.getElementsByTagName("ms:tp")[36].innerHTML;

          // you can set the surf variable here, because the sketch will start only after the data loads,
          // also make sure to first convert it to a number like "Number(surfheight)" otherwise it won't work

          surfht = Number(surfheight);
          surfpd = Number(surfperiod);

          document.getElementById("surfheight").textContent = surfheight;
          document.getElementById("surfperiod").textContent = surfperiod;
        });

      var yoff = 0; // 2nd dimension of perlin noise

      var waveColor, waveColor2, waveColor3;
      var waveColorArr;
      var controls, waveSpeed;
      var canvas;

      let surfht;
      let surfpd;

      function setup() {
        canvas = createCanvas(windowWidth, windowHeight);

        waveColor = color(0, 50, 120, 100);
        waveColor2 = color(0, 100, 150, 100);
        waveColor3 = color(0, 200, 250, 100);
        noiseDetail(2, 0.2);

        waveColorArr = [waveColor, waveColor, waveColor2, waveColor2, waveColor3, waveColor3];
      }

      function draw() {
        // after these load, the sketch starts
        if (!surfperiod && !surfheight) {
          return;
        }

        background(0);
        noStroke();

        const amp = map(surfht, 0, 10, 0, 1);
        //const amp = map(surfpd, 0, 10, 0, 1);

        for (var i = 0; i <= 5; i++) {
          // We are going to draw a polygon out of the wave points
          beginShape();
          fill(waveColorArr[i]);
          var xoff = 0;

          for (var x = 0; x <= width + 500; x += 100) {
            var y = map(
              noise(xoff, yoff - 0.5 * i),
              0,
              1,
              (height / 10) * (i + 1),
              height - height / 10 + (height / 10) * i
            );
            vertex(x, y);

            // i've extracted this into a variable for cleaner code
            const inc = map(surfpd, 0, 20, 0.01, 0.5);
            xoff += inc + 0.5 / 10000.0;
          }

          vertex(width, height);
          vertex(0, height);
          endShape(CLOSE);
        }

        const inc = map(surfht, 0, 10, 0, 0.025);
        yoff += 0.007 + inc + 0.5 / 10000.0;
      }

      function windowResized() {
        resizeCanvas(window.innerWidth, window.innerHeight);
      }


    </script>


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