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Ingy döt Net
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59
Task/Yin-and-yang/JavaScript/yin-and-yang-1.js
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59
Task/Yin-and-yang/JavaScript/yin-and-yang-1.js
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function Arc(posX,posY,radius,startAngle,endAngle,color){//Angle in radians.
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this.posX=posX;
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this.posY=posY;
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this.radius=radius;
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this.startAngle=startAngle;
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this.endAngle=endAngle;
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this.color=color;
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}
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//0,0 is the top left of the screen
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var YingYang=[
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new Arc(0.5,0.5,1,0.5*Math.PI,1.5*Math.PI,"white"),//Half white semi-circle
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new Arc(0.5,0.5,1,1.5*Math.PI,0.5*Math.PI,"black"),//Half black semi-circle
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new Arc(0.5,0.25,.5,0,2*Math.PI,"black"),//black circle
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new Arc(0.5,0.75,.5,0,2*Math.PI,"white"),//white circle
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new Arc(0.5,0.25,1/6,0,2*Math.PI,"white"),//small white circle
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new Arc(0.5,0.75,1/6,0,2*Math.PI,"black")//small black circle
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]
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//Ying Yang is DONE!
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//Now we'll have to draw it.
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//We'll draw it in a matrix that way we can get results graphically or by text!
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function Array2D(width,height){
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this.height=height;
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this.width=width;
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this.array2d=[];
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for(var i=0;i<this.height;i++){
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this.array2d.push(new Array(this.width));
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}
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}
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Array2D.prototype.resize=function(width,height){//This is expensive
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//nheight and nwidth is the difference of the new and old height
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var nheight=height-this.height,nwidth=width-this.width;
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if(nwidth>0){
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for(var i=0;i<this.height;i++){
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if(i<height)
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Array.prototype.push.apply(this.array2d[i],new Array(nwidth));
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}
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}
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else if(nwidth<0){
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for(var i=0;i<this.height;i++){
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if(i<height)
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this.array2d[i].splice(width,nwidth);
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}
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}
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if(nheight>0){
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Array.prototype.push.apply(this.array2d,new Array(width));
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}
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else if(nheight<0){
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this.array2d.splice(height,nheight)
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}
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}
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Array2D.prototype.loop=function(callback){
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for(var i=0;i<this.height;i++)
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for(var i2=0;i2<this.width;i++)
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callback.call(this,this.array2d[i][i2],i,i2);
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}
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var mat=new Array2D(100,100);//this sounds fine;
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YingYang[0];
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//In construction.
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66
Task/Yin-and-yang/JavaScript/yin-and-yang-2.js
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Task/Yin-and-yang/JavaScript/yin-and-yang-2.js
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YinYang = (function () {
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var scale_x = 2,
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scale_y = 1,
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black = "#",
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white = ".",
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clear = " ",
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out = "";
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function draw(radius) {
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function inCircle(centre_x, centre_y, radius, x, y) {
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return Math.pow(x - centre_x, 2) + Math.pow(y - centre_y, 2) <= Math.pow(radius, 2)
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}
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var bigCircle = function (x, y) {
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return inCircle(0, 0, radius, x, y)
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}, whiteSemiCircle = function (x, y) {
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return inCircle(0, radius / 2, radius / 2, x, y)
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}, smallBlackCircle = function (x, y) {
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return inCircle(0, radius / 2, radius / 6, x, y)
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}, blackSemiCircle = function (x, y) {
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return inCircle(0, -radius / 2, radius / 2, x, y)
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}, smallWhiteCircle = function (x, y) {
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return inCircle(0, -radius / 2, radius / 6, x, y)
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};
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i = 0
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for (var sy = Math.round(radius * scale_y); sy >= -Math.round(radius * scale_y); sy--) {
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//console.log(sy)
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for (var sx = -Math.round(radius * scale_x); sx <= Math.round(radius * scale_x); sx++) {
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var x = sx / scale_x,
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y = sy / scale_y;
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//out+=sx
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//console.log(sx,bigCircle(x,y))
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if (bigCircle(x, y)) {
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//out+="";
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if (whiteSemiCircle(x, y)) {
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//console.log(x,y)
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if (smallBlackCircle(x, y)) {
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out += black
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} else {
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out += white
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}
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} else if (blackSemiCircle(x, y)) {
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if (smallWhiteCircle(x, y)) {
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out += white
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} else {
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out += black
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}
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} else if (x < 0) {
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out += white
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} else {
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out += black
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}
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} else {
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out += clear;
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}
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}
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out += "\n";
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}
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return out;
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}
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return draw
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})()
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console.log(YinYang(17))
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console.log(YinYang(8))
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Task/Yin-and-yang/JavaScript/yin-and-yang-3.js
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Task/Yin-and-yang/JavaScript/yin-and-yang-3.js
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<!DOCTYPE html>
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<html>
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<head>
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<body>
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<svg
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id="svg"
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xmlns="http://www.w3.org/2000/svg"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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version="1.1"
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width="100%"
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height="100%">
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</svg>
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<script>
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function makeElem(elemName, attribs) { //atribs must be an Object
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var e = document.createElementNS("http://www.w3.org/2000/svg", elemName),
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a, b, d = attribs.style;
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for (a in attribs) {
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if (attribs.hasOwnProperty(a)) {
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if (a == 'style') {
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for (b in d) {
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if (d.hasOwnProperty(b)) {
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e.style[b] = d[b];
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}
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}
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continue;
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}
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e.setAttributeNS(null, a, attribs[a]);
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}
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}
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return e;
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}
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var svg = document.getElementById("svg");
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function drawYingYang(n, x, y) {
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var d = n / 10;
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h = d * 5, q = h / 2, t = q * 3;
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//A white circle, for the bulk of the left-hand part
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svg.appendChild(makeElem("circle", {
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cx: h,
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cy: h,
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r: h,
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fill: "white"
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}));
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//A black semicircle, for the bulk of the right-hand part
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svg.appendChild(makeElem("path", {
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d: "M " + (h + x) + "," + y + " A " + q + "," + q + " -" + d * 3 + " 0,1 " + (h + x) + "," + (n + y) + " z",
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fill: "black"
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}));
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//Circles to extend each part
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svg.appendChild(makeElem("circle", {
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cx: h + x,
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cy: q + y,
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r: q,
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fill: "white"
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}));
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svg.appendChild(makeElem("circle", {
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cx: h + x,
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cy: t + y,
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r: q,
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fill: "black"
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}));
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//The spots
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svg.appendChild(makeElem("circle", {
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cx: h + x,
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cy: q + y,
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r: d,
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fill: "black"
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}));
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svg.appendChild(makeElem("circle", {
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cx: h + x,
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cy: t + y,
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r: q,
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fill: "black"
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}));
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svg.appendChild(makeElem("circle", {
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cx: h + x,
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cy: t + y,
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r: d,
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fill: "white"
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}));
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//An outline for the whole shape
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svg.appendChild(makeElem("circle", {
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cx: h + x,
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cy: h + y,
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r: h,
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fill: "none",
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stroke: "gray",
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"stroke-width": d / 3
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}));
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if (svg.height.baseVal.valueInSpecifiedUnits < n) {
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svg.setAttributeNS(null, "height", y * 1.25 + n + "px")
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}
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//svg.appendChild(makeElem("circle",{cx:"100", cy:h, r:"40", stroke:"black", "stroke-width":"2", fill:"red"}))
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}
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drawYingYang(100, 30, 30);
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drawYingYang(1000, 200, 200);
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</script>
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</body>
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</head>
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</html>
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