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FlatMirror.html
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FlatMirror.html
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<!DOCTYPE html>
<html lang="pl">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<title>Zwierciadło płaskie</title>
<meta name="description" content="Opis w Google" />
<meta name="keywords" content="słowa, kluczowe, wypisane, po, porzecinku" />
<link rel="stylesheet" href="style.css">
</head>
<body>
<ul>
<a href="FlatMirror.html"><li>Zwierciadło płaskie</li></a>
<a href="CurvedMirror.html"><li>Zwierciadło kuliste</li></a>
<a href="ConvergingLens.html"><li>Soczewka skupiająca</li></a>
<a href="DivergingLens.html"><li>Soczewka rozpraszająca</li></a>
</ul>
<h2 class="title">Zwierciadło płaskie</h2><br />
<canvas width="900" height="600" id="canvas"></canvas>
<script type="text/javascript">
var canvas = document.getElementById('canvas');
var parametersColor="#c9cfd8";
var linesColor="#c45050";
var mirrorColor="SkyBlue";
//Browser detection:
var isChrome = !!window.chrome && !!window.chrome.webstore;
var isFirefox = typeof InstallTrigger !== 'undefined';
var isOpera = (!!window.opr && !!opr.addons) || !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
///////////////////////Mouse_Control//////////////////////////
document.addEventListener("DOMContentLoaded",init, false);
var mouseclick=false;
function init(){
canvas.addEventListener("mousemove",mouseMoveFunction,false);
canvas.addEventListener("mouseout",mouseOutFunction,false);
canvas.addEventListener("mousedown",mouseDownFunction,false);
canvas.addEventListener("mouseup",mouseUpFunction,false);
if(isChrome==true||isOpera==true)
canvas.addEventListener('mousewheel',mouseWheelFunction);
else if(isFirefox==true)
canvas.addEventListener('DOMMouseScroll',mouseWheelFunction);
}
//////////////////////////////////////////////////////////////
var arrow = {
x: 400,
y: 200,
height: 20,
width: 2,
};
var imageX=-arrow.x+600;
var imageHeight;
//////////////////////////Mouse_Control/////////////////////////////
function loadCursorPositionAndChangeArrowPosition(event) {//XDXDXD
var rect = canvas.getBoundingClientRect();
xPos=Math.round((event.clientX-rect.left+0.5)/1.5);
yPos=Math.round((event.clientY-rect.top+0.8125)/1.5);
arrow.x=xPos;
arrow.y=yPos+arrow.height;
}
function mouseDownFunction(event) {
loadCursorPositionAndChangeArrowPosition(event);
mouseclick=true;
draw();
}
function mouseMoveFunction(event) {
if(mouseclick==true)
{
loadCursorPositionAndChangeArrowPosition(event);
draw();
}
}
function mouseUpFunction(event) {
mouseclick=false;
draw();
}
function mouseOutFunction(event) {
mouseclick=false;
draw();
}
function mouseWheelFunction(event){
var delta = event.wheelDelta ? event.wheelDelta : -event.detail;
if(delta==120||delta==3){
arrow.height+=2;
draw();
}
else if((delta==-120||delta==-3)&&arrow.height>0){
arrow.height-=2;
draw();
}
}
///////////////////////////////////////////////////////////////////
function drawLine(fromX,fromY,toX,toY,lenght,solid){
c.beginPath();
c.strokeStyle=linesColor;
c.lineWidth=1;
if(solid===true)c.setLineDash([]);
else c.setLineDash([3, 3]);
if(lenght===false) lenght=1;
else lenght+=1;
var centerX = (fromX+toX)/2;
var centerY = (fromY+toY)/2;
c.moveTo(fromX,fromY);
c.lineTo((lenght+1)*centerX-lenght*fromX,(lenght+1)*centerY-lenght*fromY);
c.stroke();
c.closePath();
}
if (canvas.getContext) {
var c = canvas.getContext('2d');
c.scale(1.5,1.5);
window.addEventListener("load",draw);
function draw() {
c.clearRect(0, 0, canvas.width, canvas.height);
drawLines();
drawArrow();
drawImage();
drawFlatMirror();
drawParameters();
drawInstruction();
}
function drawFlatMirror() {
c.beginPath();
c.strokeStyle=mirrorColor;
c.lineWidth=4;
c.moveTo(300,330);
c.lineTo(300,0);
c.stroke();
c.closePath();
}
function drawLines() {
if(arrow.x!=300) {
//Górna pozioma:
drawLine(arrow.x,arrow.y-arrow.height,300,arrow.y-arrow.height,false,true);
//Górna pozioma pozorna:
drawLine(300,arrow.y-arrow.height,imageX,arrow.y-arrow.height,2,false);
//Dolna pozioma:
drawLine(arrow.x,arrow.y,300,arrow.y,false,true);
//Dolna pozioma pozorna:
drawLine(300,arrow.y,imageX,arrow.y,2,false);
//Prawa dolna:
drawLine(arrow.x,arrow.y,300,arrow.y+50,false,true);
//Prawa dolna odbita:
drawLine(300,arrow.y+50,arrow.x,arrow.y+100,2,true);
//Prawa dolna pozorna:
drawLine(300,arrow.y+50,imageX,arrow.y,2,false);
//Prawa górna:
drawLine(arrow.x,arrow.y-arrow.height,300,arrow.y-arrow.height-50,false,true);
//Prawa górna odbita:
drawLine(300,arrow.y-arrow.height-50,arrow.x,arrow.y-arrow.height-100,2,true);
//Prawa górna pozorna:
drawLine(300,arrow.y-arrow.height-50,imageX,arrow.y-arrow.height,2,false);
}
}
function drawArrow() {
c.beginPath();
c.setLineDash([]);
c.lineWidth=arrow.width;
c.strokeStyle="#116af9";
c.moveTo(arrow.x,arrow.y);
c.lineTo(arrow.x,arrow.y-arrow.height);
c.moveTo(arrow.x,arrow.y-arrow.height);
c.lineTo(arrow.x-4,arrow.y-arrow.height+4);
c.moveTo(arrow.x,arrow.y-arrow.height);
c.lineTo(arrow.x+4,arrow.y-arrow.height+4);
c.stroke();
c.closePath();
}
function drawImage() {
imageX = -arrow.x+600;
imageHeight= arrow.height;
c.beginPath();
c.setLineDash([]);
c.lineWidth=arrow.width;
c.strokeStyle="#e8273d";
c.moveTo(imageX,arrow.y);
c.lineTo(imageX,arrow.y-imageHeight);
c.moveTo(imageX,arrow.y-imageHeight);
c.lineTo(imageX-4,arrow.y-imageHeight+4);
c.moveTo(imageX,arrow.y-imageHeight);
c.lineTo(imageX+4,arrow.y-imageHeight+4);
c.stroke();
c.closePath();
}
function drawParameters() {
c.beginPath();
c.fillStyle=parametersColor;
c.font = '10pt Comic Sans MS';
c.fillText('Odległość przedmiotu od zwierciadła: '+Math.abs((arrow.x-300)/100)+'m',0,350);
c.fillText('Odległość obrazu od zwierciadła: '+Math.abs(Math.round(arrow.x-300)/100)+'m',0,365);
c.fillText('Wysokość przedmiotu: '+arrow.height/100+'m',0,380);
c.fillText('Wysokość obrazu: '+Math.abs(Math.round(imageHeight)/100)+'m',0,395);
c.fillText('Obraz pozorny prosty tej samej wysokosci',300,395);
c.closePath();
}
function drawInstruction() {
c.beginPath();
c.fillStyle=parametersColor;
c.font = '10pt Comic Sans MS';
c.fillText('Sterowanie- klawiatura:',0,10);
c.font = '7pt Comic Sans MS';
c.fillText('- użyj strzałek lewo/prawo aby przesuwać przedmiot',0,22);
c.fillText('- użyj strzałek góra/dół aby przesuwać przedmiot',0,34);
c.fillText('- użyj klawiszy +/- aby zmieniać rozmiar przedmiotu',0,46);
c.font = '10pt Comic Sans MS';
c.fillText('Sterowanie- mysz:',370,10);
c.font = '7pt Comic Sans MS';
c.fillText('- użyj kółka myszy aby zmienić wysokość przedmiotu',370,22);
c.fillText('- użyj myszki klikając na układ współrzędnych',370,34);
c.fillText(' aby zmienić położenie przedmiotu',370,46);
c.closePath();
}
}
document.addEventListener("keydown", function(e) {
var key = e.keyCode ? e.keyCode : e.which;
//alert(e.keyCode);
if (key === 39||key===68) {
arrow.x+=1;
draw();
}
else if(key===37||key===65){
arrow.x-=1;
draw();
}
else if(key===38||key===87){
arrow.y-=1;
draw();
}
else if(key===40||key===83){
arrow.y+=1;
draw();
}
else if(key===109){
if(arrow.height>0){
arrow.height-=1;
draw();
}
}
else if(key===107){
arrow.height+=1;
draw();
}
});
</script>
</body>
</html>