Points-line

Developer
IEkiller
Size
2,396 Kb
Views
8,096
  1. Points-line Previews
  2. Points-line HTML Codes
  3. Points-line CSS Codes
  4. Points-line JS Codes

How do I make an points-line?

What is a points-line? How do you make a points-line? This script and codes were developed by IEkiller on 18 January 2023, Wednesday.

Points-line Previews
IQ Test

Points-line - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>points-line</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css"> <link rel="stylesheet" href="css/style.css">
</head>
<body> <canvas id="can" width=1000 height=800></canvas> <script src="js/index.js"></script>
</body>
</html>

Points-line - Script Codes CSS Codes

* { margin: 0; padding: 0;
}
canvas { background: #ccc; display: block;
}

Points-line - Script Codes JS Codes

var can = document.querySelector('#can');
can.width = window.innerWidth;
can.height = window.innerHeight;
var ctx = can.getContext('2d');
ctx.fillStyle = 'rgba(0,100,255,.8)';
ctx.strokeStyle = 'rgba(255, 100, 0, .8)';
ctx.lineWidth = 1;
var points = [ // {x:10， y:10, r: 3, sx: -1, sy: 2}
];
const lineRange = can.width / 6;
function init() { points = bronPoints(200, 3); window.tempPotins = [].concat(points); window.raf = requestAnimationFrame(loop);
}
function bronPoints(num, range) { var arr = []; for (var i = 0; i < num; i++) { arr.push({ x: Math.round(Math.random() * (can.width - 100) + 50), y: Math.round(Math.random() * (can.height - 100) + 50), r: !range ? Math.round(Math.random() * 5 + 5) : range, sx: Math.round(Math.random() * 7 - 3), sy: Math.round(Math.random() * 7 - 3), }) } return arr;
}
function loop() { ctx.clearRect(0, 0, can.width, can.height); drawLine(); drawPoint(); updatePoint(); window.raf = requestAnimationFrame(loop);
}
function drawPoint() { tempPotins.forEach(function(item, i) { ctx.beginPath(); ctx.arc(item.x, item.y, item.r, 0, 2 * Math.PI); ctx.closePath(); ctx.fill(); });
}
function updatePoint() { tempPotins.forEach(function(item, i) { item.x += item.sx; if (item.x >= can.width - item.r || item.x <= 0 + item.r) { item.sx = -item.sx; } item.y += item.sy; if (item.y >= can.height - item.r || item.y <= 0 + item.r) { item.sy = -item.sy; } });
}
function drawLine() { var arr = [].concat(tempPotins); while (arr.length > 0) { for (var i = 1, l = arr.length; i < l; i++) { if (isInRange(arr[0], arr[i])) { ctx.save(); ctx.beginPath(); ctx.moveTo(arr[0].x, arr[0].y); ctx.lineTo(arr[i].x, arr[i].y); ctx.closePath(); ctx.stroke(); ctx.restore(); } } arr.shift(); }
}
function isInRange(po1, po2) { var dis = Math.sqrt(Math.pow(po2.x - po1.x, 2) + Math.pow(po2.y - po1.y, 2)); return dis < lineRange;
}
init();
Points-line - Script Codes
Points-line - Script Codes
Home Page Home
Developer IEkiller
Username win7killer
Uploaded January 18, 2023
Rating 3
Size 2,396 Kb
Views 8,096
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