157 lines
5.9 KiB
HTML
157 lines
5.9 KiB
HTML
<!--
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This work is licensed under CC BY-NC-ND 4.0
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Link to license: http://creativecommons.org/licenses/by-nc-nd/4.0/
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Attribute to Russell Georgi
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-->
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<html>
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<head>
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<title>
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Waves 11-1
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</title>
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<style>
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html, body {
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width: 100%;
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height: 100%;
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margin: 0px;
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border: 0;
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overflow: hidden;
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display: block;
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}
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canvas {
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position: absolute;
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}
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form {
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position: relative;
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}
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</style>
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</head>
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<body>
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<form>
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<label for="x">X mode</label>
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<input type="number" id="x" name="x" min="1" max="10" step = "1" value = "1">
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<br>
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<label for="y">Y mode</label>
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<input type="number" id="y" name="y" min="1" max="10" step = "1" value = "1">
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</form>
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<canvas id="myCanvas" width="1" height="1" style="border:1px solid #ffffff;">
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Your browser does not support the HTML5 canvas tag.</canvas>
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<script>
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var c = document.getElementById("myCanvas");
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var ctx = c.getContext("2d");
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c.width = window.innerWidth;
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c.height = window.innerHeight;
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var cll = "#ff0000";
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var dz = 10;
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var nxb = 25;
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var nyb = 25;
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var modex = parseFloat(document.getElementById("x").value);
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var modey = parseFloat(document.getElementById("y").value);
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var ell = 10;
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var ellx = ell * nxb;
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var elly = ell * nyb;
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var cTwo = .2;
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var omega = 1;
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var dt = .1;
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var t = 0;
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var m = 1;
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var xPos = 0;
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var yPos = 0;
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ctx.translate(ctx.canvas.width / 2, ctx.canvas.height / 2);
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ctx.scale(1.5, -1.5);
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function fnx(x, y, z)
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{
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return (x + y) / Math.SQRT2;
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}
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function fny(x, y, z)
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{
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return z + cTwo * (y - x);
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}
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function threedline(x1, y1, z1, x2, y2, z2, cll)
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{
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ctx.strokeStyle = cll;
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ctx.beginPath();
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ctx.moveTo(xPos + fnx(x1, y1, z1), yPos + fny(x1, y1, z1));
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ctx.lineTo(xPos + fnx(x2, y2, z2), yPos + fny(x2, y2, z2));
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ctx.stroke();
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}
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function fna(nx, ny)
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{
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return Math.sin(modex * Math.PI * nx / (nxb + 1)) * Math.sin(modey * Math.PI * ny / (nyb + 1));
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}
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function Clear(ctx)
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{
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console.log("Clear!");
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ctx.clearRect(-c.width, -c.height, c.width * 2, c.height * 2);
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}
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function Update()
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{
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document.getElementById("x").value = Math.round(document.getElementById("x").value);
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document.getElementById("y").value = Math.round(document.getElementById("y").value);
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modex = document.getElementById("x").value;
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modey = document.getElementById("y").value;
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if (modex <= 0)
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{
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modex = 1;
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document.getElementById("x").value = 1;
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} else if (modex > 5)
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{
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modex = 5;
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document.getElementById("x").value = 5;
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}
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if (modey <= 0)
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{
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modey = 1;
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document.getElementById("y").value = 1;
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} else if (modey > 5)
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{
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modey = 5;
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document.getElementById("y").value = 5;
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}
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omega = Math.sqrt((Math.pow(modex, 2) + Math.pow(modey, 2)) / 2);
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Clear(ctx);
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Draw();
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m += 1;
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console.log(m);
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setTimeout(Update, 1000/60)
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}
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function Draw()
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{
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threedline(-ellx, -elly, 0, ellx, -elly, 0, cll);
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threedline(-ellx, -elly, 0, -ellx, elly, 0, cll);
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threedline(ellx, elly, 0, ellx, -elly, 0, cll);
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threedline(ellx, elly, 0, -ellx, elly, 0, cll);
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for (nx = 0; nx <= nxb; nx++)
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{
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for (ny = 0; ny <= nyb; ny++)
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{
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threedline(-ellx + 2 * ellx * nx / (nxb + 1), -elly + 2 * elly * ny / (nyb + 1), dz * Math.sin(omega * t) * fna(nx, ny), -ellx + 2 * ellx * (nx + 1) / (nxb + 1), -elly + 2 * elly * ny / (nyb + 1), dz * Math.sin(omega * t) * fna((nx + 1), (ny)), cll);
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threedline(-ellx + 2 * ellx * nx / (nxb + 1), -elly + 2 * elly * ny / (nyb + 1), dz * Math.sin(omega * t) * fna(nx, ny), -ellx + 2 * ellx * (nx) / (nxb + 1), -elly + 2 * elly * (ny + 1) / (nyb + 1), dz * Math.sin(omega * t) * fna((nx), (ny + 1)), cll);
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}
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}
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t += dt;
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}
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window.addEventListener('resize', function(event) {
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c.width = window.innerWidth;
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c.height = window.innerHeight;
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ctx.translate(c.width / 2, c.height / 2);
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ctx.scale(1.5, -1.5);
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}, true);
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Update();
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</script>
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</body>
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<p xmlns:cc="http://creativecommons.org/ns#" style="font-size: 1vw; bottom: 0px; position: absolute;">
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This work is licensed under
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<a href="http://creativecommons.org/licenses/by-nc-nd/4.0/?ref=chooser-v1" target="_blank" rel="license noopener noreferrer" style="display:inline-block;">CC BY-NC-ND 4.0<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/cc.svg?ref=chooser-v1"><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/by.svg?ref=chooser-v1"><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/nc.svg?ref=chooser-v1"><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/nd.svg?ref=chooser-v1"></a></p>
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</html>
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