Monte Carlo Pi Animation The Next CEO of Stack Overflow
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Monte Carlo Pi Animation
The Next CEO of Stack Overflow
0
$begingroup$
I have created a program that calculates pi using a Monte Carlo method. It also animates the process and displays the value as it is updated to show how it gets closer and closer to the actual value as more time passes. It is made with HTML canvas. I would like some feedback on my program.
"use strict";
function hypot(a, b)
return Math.sqrt(a * a + b * b);
function randInt(min, max)
return Math.floor(Math.random() * (max - min)) + min
class Circle
constructor(x, y, r)
this.x = x;
this.y = y;
this.r = r;
draw()
ctx.strokeStyle = "#000";
ctx.lineWidth = "5px";
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, Math.PI * 2);
ctx.stroke();
collidePoint(pt)
var dx = this.x - pt.x;
var dy = this.y - pt.y;
return hypot(dx, dy) <= this.r;
class Point
constructor(x, y)
this.x = x;
this.y = y;
draw()
ctx.fillStyle = "rgba(0, 0, 0, 16)";
ctx.fillRect(this.x, this.y, 1, 1);
const canvas = document.getElementById("disp");
const ctx = canvas.getContext("2d");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var width = parseInt(canvas.width);
var height = parseInt(canvas.height);
var trys = 0;
var lands = 0;
var area = width * height;
var points = [];
var ball = new Circle(width / 2, height / 2, Math.min(width, height) / 2);
setInterval(step, 10);
function drawAll()
ctx.clearRect(0, 0, width, height);
ball.draw();
points.forEach((point) =>
point.draw();
);
function step()
drawAll();
var pnt = new Point(randInt(0, width), randInt(0, height));
trys++;
if (ball.collidePoint(pnt))
lands++;
var prob = lands / trys;
var pi = (prob * area) / Math.pow(ball.r, 2);
document.getElementById("out").innerText = pi.toString();
points.push(pnt);
html, body
height: 100%;
overflow: hidden;
#disp
width: 100vw;
height: 100vh;
margin: 0;
#box
position: absolute;
z-index: 1;
width: 200px;
height: 20px;
left: 5%;
top: 5%;
background-color: whitesmoke;
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Monte Carlo Pi</title>
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<canvas id="disp"></canvas>
<span id="box">Pi ≈ <span id="out"></span></span>
<script src="script.js"></script>
</body>
</html>javascript mathematics canvas
asked 2 mins ago
All KnowerAll Knower
1677
$endgroup$
add a comment |
0
$begingroup$
I have created a program that calculates pi using a Monte Carlo method. It also animates the process and displays the value as it is updated to show how it gets closer and closer to the actual value as more time passes. It is made with HTML canvas. I would like some feedback on my program.
"use strict";
function hypot(a, b)
return Math.sqrt(a * a + b * b);
function randInt(min, max)
return Math.floor(Math.random() * (max - min)) + min
class Circle
constructor(x, y, r)
this.x = x;
this.y = y;
this.r = r;
draw()
ctx.strokeStyle = "#000";
ctx.lineWidth = "5px";
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, Math.PI * 2);
ctx.stroke();
collidePoint(pt)
var dx = this.x - pt.x;
var dy = this.y - pt.y;
return hypot(dx, dy) <= this.r;
class Point
constructor(x, y)
this.x = x;
this.y = y;
draw()
ctx.fillStyle = "rgba(0, 0, 0, 16)";
ctx.fillRect(this.x, this.y, 1, 1);
const canvas = document.getElementById("disp");
const ctx = canvas.getContext("2d");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var width = parseInt(canvas.width);
var height = parseInt(canvas.height);
var trys = 0;
var lands = 0;
var area = width * height;
var points = [];
var ball = new Circle(width / 2, height / 2, Math.min(width, height) / 2);
setInterval(step, 10);
function drawAll()
ctx.clearRect(0, 0, width, height);
ball.draw();
points.forEach((point) =>
point.draw();
);
function step()
drawAll();
var pnt = new Point(randInt(0, width), randInt(0, height));
trys++;
if (ball.collidePoint(pnt))
lands++;
var prob = lands / trys;
var pi = (prob * area) / Math.pow(ball.r, 2);
document.getElementById("out").innerText = pi.toString();
points.push(pnt);
html, body
height: 100%;
overflow: hidden;
#disp
width: 100vw;
height: 100vh;
margin: 0;
#box
position: absolute;
z-index: 1;
width: 200px;
height: 20px;
left: 5%;
top: 5%;
background-color: whitesmoke;
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Monte Carlo Pi</title>
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<canvas id="disp"></canvas>
<span id="box">Pi ≈ <span id="out"></span></span>
<script src="script.js"></script>
</body>
</html>javascript mathematics canvas
asked 2 mins ago
All KnowerAll Knower
1677
$endgroup$
add a comment |
0
0
0
$begingroup$
I have created a program that calculates pi using a Monte Carlo method. It also animates the process and displays the value as it is updated to show how it gets closer and closer to the actual value as more time passes. It is made with HTML canvas. I would like some feedback on my program.
"use strict";
function hypot(a, b)
return Math.sqrt(a * a + b * b);
function randInt(min, max)
return Math.floor(Math.random() * (max - min)) + min
class Circle
constructor(x, y, r)
this.x = x;
this.y = y;
this.r = r;
draw()
ctx.strokeStyle = "#000";
ctx.lineWidth = "5px";
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, Math.PI * 2);
ctx.stroke();
collidePoint(pt)
var dx = this.x - pt.x;
var dy = this.y - pt.y;
return hypot(dx, dy) <= this.r;
class Point
constructor(x, y)
this.x = x;
this.y = y;
draw()
ctx.fillStyle = "rgba(0, 0, 0, 16)";
ctx.fillRect(this.x, this.y, 1, 1);
const canvas = document.getElementById("disp");
const ctx = canvas.getContext("2d");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var width = parseInt(canvas.width);
var height = parseInt(canvas.height);
var trys = 0;
var lands = 0;
var area = width * height;
var points = [];
var ball = new Circle(width / 2, height / 2, Math.min(width, height) / 2);
setInterval(step, 10);
function drawAll()
ctx.clearRect(0, 0, width, height);
ball.draw();
points.forEach((point) =>
point.draw();
);
function step()
drawAll();
var pnt = new Point(randInt(0, width), randInt(0, height));
trys++;
if (ball.collidePoint(pnt))
lands++;
var prob = lands / trys;
var pi = (prob * area) / Math.pow(ball.r, 2);
document.getElementById("out").innerText = pi.toString();
points.push(pnt);
html, body
height: 100%;
overflow: hidden;
#disp
width: 100vw;
height: 100vh;
margin: 0;
#box
position: absolute;
z-index: 1;
width: 200px;
height: 20px;
left: 5%;
top: 5%;
background-color: whitesmoke;
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Monte Carlo Pi</title>
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<canvas id="disp"></canvas>
<span id="box">Pi ≈ <span id="out"></span></span>
<script src="script.js"></script>
</body>
</html>javascript mathematics canvas
asked 2 mins ago
All KnowerAll Knower
1677
$endgroup$
I have created a program that calculates pi using a Monte Carlo method. It also animates the process and displays the value as it is updated to show how it gets closer and closer to the actual value as more time passes. It is made with HTML canvas. I would like some feedback on my program.
"use strict";
function hypot(a, b)
return Math.sqrt(a * a + b * b);
function randInt(min, max)
return Math.floor(Math.random() * (max - min)) + min
class Circle
constructor(x, y, r)
this.x = x;
this.y = y;
this.r = r;
draw()
ctx.strokeStyle = "#000";
ctx.lineWidth = "5px";
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, Math.PI * 2);
ctx.stroke();
collidePoint(pt)
var dx = this.x - pt.x;
var dy = this.y - pt.y;
return hypot(dx, dy) <= this.r;
class Point
constructor(x, y)
this.x = x;
this.y = y;
draw()
ctx.fillStyle = "rgba(0, 0, 0, 16)";
ctx.fillRect(this.x, this.y, 1, 1);
const canvas = document.getElementById("disp");
const ctx = canvas.getContext("2d");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var width = parseInt(canvas.width);
var height = parseInt(canvas.height);
var trys = 0;
var lands = 0;
var area = width * height;
var points = [];
var ball = new Circle(width / 2, height / 2, Math.min(width, height) / 2);
setInterval(step, 10);
function drawAll()
ctx.clearRect(0, 0, width, height);
ball.draw();
points.forEach((point) =>
point.draw();
);
function step()
drawAll();
var pnt = new Point(randInt(0, width), randInt(0, height));
trys++;
if (ball.collidePoint(pnt))
lands++;
var prob = lands / trys;
var pi = (prob * area) / Math.pow(ball.r, 2);
document.getElementById("out").innerText = pi.toString();
points.push(pnt);
html, body
height: 100%;
overflow: hidden;
#disp
width: 100vw;
height: 100vh;
margin: 0;
#box
position: absolute;
z-index: 1;
width: 200px;
height: 20px;
left: 5%;
top: 5%;
background-color: whitesmoke;
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Monte Carlo Pi</title>
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<canvas id="disp"></canvas>
<span id="box">Pi ≈ <span id="out"></span></span>
<script src="script.js"></script>
</body>
</html>"use strict";
function hypot(a, b)
return Math.sqrt(a * a + b * b);
function randInt(min, max)
return Math.floor(Math.random() * (max - min)) + min
class Circle
constructor(x, y, r)
this.x = x;
this.y = y;
this.r = r;
draw()
ctx.strokeStyle = "#000";
ctx.lineWidth = "5px";
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, Math.PI * 2);
ctx.stroke();
collidePoint(pt)
var dx = this.x - pt.x;
var dy = this.y - pt.y;
return hypot(dx, dy) <= this.r;
class Point
constructor(x, y)
this.x = x;
this.y = y;
draw()
ctx.fillStyle = "rgba(0, 0, 0, 16)";
ctx.fillRect(this.x, this.y, 1, 1);
const canvas = document.getElementById("disp");
const ctx = canvas.getContext("2d");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var width = parseInt(canvas.width);
var height = parseInt(canvas.height);
var trys = 0;
var lands = 0;
var area = width * height;
var points = [];
var ball = new Circle(width / 2, height / 2, Math.min(width, height) / 2);
setInterval(step, 10);
function drawAll()
ctx.clearRect(0, 0, width, height);
ball.draw();
points.forEach((point) =>
point.draw();
);
function step()
drawAll();
var pnt = new Point(randInt(0, width), randInt(0, height));
trys++;
if (ball.collidePoint(pnt))
lands++;
var prob = lands / trys;
var pi = (prob * area) / Math.pow(ball.r, 2);
document.getElementById("out").innerText = pi.toString();
points.push(pnt);
html, body
height: 100%;
overflow: hidden;
#disp
width: 100vw;
height: 100vh;
margin: 0;
#box
position: absolute;
z-index: 1;
width: 200px;
height: 20px;
left: 5%;
top: 5%;
background-color: whitesmoke;
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Monte Carlo Pi</title>
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<canvas id="disp"></canvas>
<span id="box">Pi ≈ <span id="out"></span></span>
<script src="script.js"></script>
</body>
</html>"use strict";
function hypot(a, b)
return Math.sqrt(a * a + b * b);
function randInt(min, max)
return Math.floor(Math.random() * (max - min)) + min
class Circle
constructor(x, y, r)
this.x = x;
this.y = y;
this.r = r;
draw()
ctx.strokeStyle = "#000";
ctx.lineWidth = "5px";
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, Math.PI * 2);
ctx.stroke();
collidePoint(pt)
var dx = this.x - pt.x;
var dy = this.y - pt.y;
return hypot(dx, dy) <= this.r;
class Point
constructor(x, y)
this.x = x;
this.y = y;
draw()
ctx.fillStyle = "rgba(0, 0, 0, 16)";
ctx.fillRect(this.x, this.y, 1, 1);
const canvas = document.getElementById("disp");
const ctx = canvas.getContext("2d");
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var width = parseInt(canvas.width);
var height = parseInt(canvas.height);
var trys = 0;
var lands = 0;
var area = width * height;
var points = [];
var ball = new Circle(width / 2, height / 2, Math.min(width, height) / 2);
setInterval(step, 10);
function drawAll()
ctx.clearRect(0, 0, width, height);
ball.draw();
points.forEach((point) =>
point.draw();
);
function step()
drawAll();
var pnt = new Point(randInt(0, width), randInt(0, height));
trys++;
if (ball.collidePoint(pnt))
lands++;
var prob = lands / trys;
var pi = (prob * area) / Math.pow(ball.r, 2);
document.getElementById("out").innerText = pi.toString();
points.push(pnt);
html, body
height: 100%;
overflow: hidden;
#disp
width: 100vw;
height: 100vh;
margin: 0;
#box
position: absolute;
z-index: 1;
width: 200px;
height: 20px;
left: 5%;
top: 5%;
background-color: whitesmoke;
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Monte Carlo Pi</title>
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<canvas id="disp"></canvas>
<span id="box">Pi ≈ <span id="out"></span></span>
<script src="script.js"></script>
</body>
</html>javascript mathematics canvas
javascript mathematics canvas
asked 2 mins ago
All KnowerAll Knower
1677
asked 2 mins ago
All KnowerAll Knower
1677
asked 2 mins ago
All KnowerAll Knower
1677
asked 2 mins ago
All KnowerAll Knower
1677
asked 2 mins ago
All KnowerAll Knower
1677
1677
add a comment |
add a comment |
0
active
oldest
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