Learning canvas drawing

Developer
Size
2,204 Kb
Views
40,480

How do I make an learning canvas drawing?

Just an experiment in learning canvas drawing techniques. What is a learning canvas drawing? How do you make a learning canvas drawing? This script and codes were developed by Aurer on 03 August 2022, Wednesday.

Learning canvas drawing Previews

Learning canvas drawing - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Learning canvas drawing</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css"> <style> /* NOTE: The styles were added inline because Prefixfree needs access to your styles and they must be inlined if they are on local disk! */ html,body,canvas{ margin:0; padding:0;
} </style> <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
</head>
<body> <canvas id="canvas"> Your browser does not support this application
</canvas> <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Learning canvas drawing - Script Codes CSS Codes

html,body,canvas{ margin:0; padding:0;
}

Learning canvas drawing - Script Codes JS Codes

var W = canvas.width = window.innerWidth;
var H = canvas.height = window.innerHeight;
var ctx = $('#canvas')[0].getContext('2d');
var color = "rgba(255,255,255,0.2)";
var nodes = [];
var count = 3000;
ctx.fillRect(0,0,W,H);
function initialise(){ for(var i=0; i < count; i++){ var xPos = (W/100)*(Math.random()*100); var yPos = (H/100)*(Math.random()*100); var dir = Math.round( (3.6*(Math.random()*100) ) ); var node = [xPos, yPos, (10/100)*(Math.random()*100), 1, Math.random()*3]; nodes.push(node); }
}
function drawCircle(x,y,width){ ctx.fillStyle = color;	ctx.beginPath(); ctx.arc(x,y,width,0, Math.PI*2,true);	ctx.fill();
}
function draw(){ ctx.fillStyle = '#000'; ctx.fillRect(0,0,W,H); ctx.fillStyle = color; for(var i=0; i < count; i++){ var dir = nodes[i][3] ? nodes[i][1]+=nodes[i][4] : nodes[i][1]-=nodes[i][4]; if(dir >= H) nodes[i][3] = 0; if(dir <= 0) nodes[i][3] = 1; drawCircle(nodes[i][0], dir , nodes[i][2]) }
}
initialise();
setInterval(draw, 10);
Learning canvas drawing - Script Codes
Learning canvas drawing - Script Codes
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Developer Aurer
Username aurer
Uploaded August 03, 2022
Rating 3
Size 2,204 Kb
Views 40,480
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Aurer (aurer) Script Codes
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