235 lines
7.9 KiB
HTML
235 lines
7.9 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 1-2
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</title>
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<style>
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canvas {
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position: absolute;
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}
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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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.greenSlider {
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-webkit-appearance: none;
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border-radius: 5px;
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height: 10px;
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background: #d3d3d3;
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outline: none;
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opacity: 0.7;
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-webkit-transition: .2s;
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transition: opacity .2s;
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}
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.greenSlider::-webkit-slider-thumb {
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-webkit-appearance: none;
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appearance: none;
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background: #66ff77;
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border-radius: 50%;
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width: 15px;
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height: 15px;
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cursor: pointer;
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}
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.greenSlider::-moz-range-thumb {
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background: #66ff77;
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border-radius: 50%;
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width: 15px;
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height: 15px;
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cursor: pointer;
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}
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.redSlider {
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-webkit-appearance: none;
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border-radius: 5px;
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height: 10px;
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background: #d3d3d3;
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outline: none;
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opacity: 0.7;
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-webkit-transition: .2s;
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transition: opacity .2s;
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}
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.redSlider::-webkit-slider-thumb {
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-webkit-appearance: none;
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appearance: none;
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background: #ee0000;
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border-radius: 50%;
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width: 15px;
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height: 15px;
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cursor: pointer;
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}
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.redSlider::-moz-range-thumb {
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background: #ee0000;
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border-radius: 50%;
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width: 15px;
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height: 15px;
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cursor: pointer;
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}
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</style>
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</head>
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<body>
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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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<div class="slidecontainer">
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<t>This program multiplies complex numbers.</t>
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<t>Input the coordinates on w and z in the complex</t>
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<t>plane.Then the blue vector is their product.</t>
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<br>
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<t>Real part of w</t>
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<input type="range" min="-20" max="20" value="0" class="greenSlider" id="wRSlider">
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<br>
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<t>Imaginary part of w</t>
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<input type="range" min="-20" max="20" value="0" class="greenSlider" id="wISlider">
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<br>
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<t>Real part of z</t>
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<input type="range" min="-20" max="20" value="0" class="redSlider" id="zRSlider">
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<br>
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<t>Imaginary part of z</t>
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<input type="range" min="-20" max="20" value="0" class="redSlider" id="zISlider">
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</div>
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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 clx = "#ee0000";
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var clw = "#66ff77";
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var clz = "#9999ff";
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var wR = 0;
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var wRSlider = document.getElementById("wRSlider");
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var wI = 0;
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var wISlider = document.getElementById("wISlider");
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var zR = 0;
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var zRSlider = document.getElementById("zRSlider");
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var zI = 0;
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var zISlider = document.getElementById("zISlider");
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var delta = 1;
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var xPos = 0;
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var yPos = 0;
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var bottom = 0;
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ctx.translate(ctx.canvas.width / 2, ctx.canvas.height / 2)
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ctx.scale(3, 3);
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wRSlider.oninput = function()
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{
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wR = this.value * 5;
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}
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wISlider.oninput = function()
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{
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wI = -this.value * 5;
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}
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zRSlider.oninput = function()
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{
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zR = this.value * 5;
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}
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zISlider.oninput = function()
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{
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zI = -this.value * 5;
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}
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function Clear(ctx)
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{
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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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Clear(ctx);
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var x2 = (zR * wR - zI * wI) / 50;
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var y2 = (zR * wI + zI * wR) / 50;
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ctx.strokeStyle = clx;
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ctx.fillStyle = clx;
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ctx.beginPath();
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ctx.arc(zR, zI, 1, 0, Math.PI * 2);
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ctx.fill();
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ctx.strokeStyle = clw;
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ctx.fillStyle = clw;
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ctx.beginPath();
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ctx.arc(wR, wI, 1, 0, Math.PI * 2);
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ctx.fill();
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ctx.strokeStyle = "#000000";
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ctx.fillStyle = "#000000";
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ctx.font = '5px serif';
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ctx.fillText("Real axis", 65, -3);
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ctx.rotate(Math.PI / 2);
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ctx.fillText("Imaginary axis", 65, -3);
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ctx.rotate(-Math.PI / 2);
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ctx.beginPath();
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ctx.moveTo(-3, 50);
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ctx.lineTo(3, 50);
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ctx.stroke();
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ctx.beginPath();
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ctx.moveTo(-3, -50);
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ctx.lineTo(3, -50);
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ctx.stroke();
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ctx.beginPath();
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ctx.moveTo(50, -3);
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ctx.lineTo(50, 3);
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ctx.stroke();
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ctx.beginPath();
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ctx.moveTo(-50, -3);
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ctx.lineTo(-50, 3);
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ctx.stroke();
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ctx.beginPath();
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ctx.moveTo(0, bottom - 100);
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ctx.lineTo(0, 120);
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ctx.stroke();
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ctx.beginPath();
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ctx.moveTo(-150, 0);
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ctx.lineTo(150, 0);
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ctx.stroke();
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ctx.strokeStyle = clx;
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ctx.beginPath();
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ctx.moveTo(zR, zI);
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ctx.lineTo(0, 0);
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ctx.stroke();
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ctx.strokeStyle = clw;
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ctx.beginPath();
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ctx.moveTo(wR, wI);
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ctx.lineTo(0, 0);
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ctx.stroke();
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ctx.strokeStyle = clz;
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ctx.beginPath();
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ctx.moveTo(x2, y2);
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ctx.lineTo(0, 0);
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ctx.stroke();
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ctx.strokeStyle = clz;
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ctx.fillStyle = clz;
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ctx.beginPath();
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ctx.arc(x2, y2, 1, 0, Math.PI * 2);
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ctx.fill();
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setTimeout(Update, 1000/60)
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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(3, 3);
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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> |