Drawing clouds

Developer
PotatoDie
Size
3,371 Kb
Views
24,288
  1. Drawing clouds Previews
  2. Drawing clouds HTML Codes
  3. Drawing clouds CSS Codes
  4. Drawing clouds JS Codes

How do I make an drawing clouds?

Or is it a wooly chameleon? . What is a drawing clouds? How do you make a drawing clouds? This script and codes were developed by PotatoDie on 15 September 2022, Thursday.

Drawing clouds Previews
IQ Test

Drawing clouds - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Drawing clouds</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div id="wrap"> <canvas id="paperCanvas"></canvas> <canvas id="trailCanvas"></canvas>
</div> <script src='http://cdnjs.cloudflare.com/ajax/libs/paper.js/0.9.12/paper.js'></script> <script src="js/index.js"></script>
</body>
</html>

Drawing clouds - Script Codes CSS Codes

body { color:#fff; background: #000; text-align: center;
}
#wrap { width:1000px; height: 600px; max-width: 100%; position: relative; margin: 0 auto;
}
canvas { /*border: 1px solid white;*/ width:100%; position: absolute; left: 0; top: 0; cursor: pointer;
}

Drawing clouds - Script Codes JS Codes

/*	Aim planet on a constellation of 2 stars, one of which has a mass that changes with time (e.g. sine wave) */
var count = 0;
window.onload = function() {	// Get a reference to the canvas object	var canvas = document.getElementById('paperCanvas');	// Create an empty project and a view for the canvas:	paper.setup(canvas);	/*	This canvas is here just to make paperjs work. I draw onto another canvas.	Haven't solved aligning the 2 canvases (yet) when their size depends on screensize.	Better to find a replacement for paper: I just use it for doing vector math. */	initTrailCanvas();	buildUniverse();	paper.view.onFrame = update;	document.getElementById('trailCanvas').onclick = function() {	clearCanvas();	planet.position = new paper.Point ( {x: 200 + 100 * Math.random(), y: 300 + 100 * Math.random()})	}
}
// Close to the suns the force is enormous. Compensate it when closer than dprox
// Smaller dprox give mores detail in the drawing
// Use it too for bounce effects: too close than invert the force
var dprox = 22;
var suns =[];
var planet = {	position: new paper.Point({	x: 200,	y: 300	}),	speed: new paper.Point({	x: 0.0,	y: -.2	})
}
function buildUniverse() {	var color = new paper.Color(0.1,0,0);	var p = new paper.Path.Circle({center: {x:100, y:300}, radius: 6});	p.fillColor = color;	p.mass = 9e+12;	suns.push( p );	p = new paper.Path.Circle({center: {x:200, y:200}, radius: 6});	p.fillColor = color;	p.mass = 9e+12;	suns.push( p );	p = new paper.Path.Circle({center: {x:300, y:300}, radius: 6});	p.fillColor = color;	p.mass = 9e+12;	suns.push( p );	p = new paper.Path.Circle({center: {x:200, y:400}, radius: 6});	p.fillColor = color;	p.mass = 9e+12;	suns.push( p );
}
var G = 6.674e-11; // gravitational constant
update = function(event) {	// A line consists of many dots	var rv, d, n, a;	var iterations = 40;	/* * Update draws the next 'frame'. If you just draw 1 dot, to represent the position of the planet, * you don't have enough dots to create a fluent line. * Iterations is meant to do more calculations (and representations) than the rhytm of the * update function dictates. In effect you work more accurately (more samples). * Note that recalculating the speed, you divide by iterations. * * That's why iterations influences the graphic. More iterations, less 'error'. * * Many iterations may decrease the graphic quality (grunge). */	for ( var j = 0; j < iterations; j++ ){	a = new paper.Point(0,0);	count += .001;	for (var i = 0; i < suns.length; i++ ) {	// if ( i > 1 )	suns[i].position = suns[i].position.add([.16*(Math.sin(count)),.02*(Math.cos(count))]);	// pos.x += ;	rv = suns[i].position.subtract(planet.position);	d = rv.length;	n = rv.normalize();	if ( d < dprox ) {	n = n.multiply(Math.pow(d/dprox,2));	// n = n.multiply(-1); // bounce	}	m = suns[i].mass;	// if ( i == 1 ) {	//	var f = Math.sin(dt/1000)/2 + 0.5;	//	m *= f;	//	suns[i].opacity = f;	// }	// else if ( i == 3 ) {	//	var f = Math.cos(dt/1000)/2 + 0.5;	//	m *= f;	//	suns[i].opacity = f;	// }	a.x += n.x*(G*m)/(Math.pow(d,2));	a.y += n.y*(G*m)/(Math.pow(d,2));	}	planet.speed = planet.speed.add ( a.divide ( iterations ) );	planet.position = planet.position.add(planet.speed);	drawDot(planet.position, 4/(planet.speed.length+2), .04);	}
}
/*! * Canvas drawing functions for the trail */
var ctx;
function initTrailCanvas() { var canvas = document.getElementById('trailCanvas'); canvas.width = 1000; canvas.height = 600; ctx = canvas.getContext('2d'); ctx.fillStyle = "#fff";
}
function drawDot(p, r, ga) { ctx.globalAlpha = ga; ctx.beginPath(); ctx.arc(p.x, p.y,r,0,Math.PI*2,true); ctx.fill();
}
function clearCanvas() { ctx.clearRect(0, 0, 1000,600);
}
Drawing clouds - Script Codes
Drawing clouds - Script Codes
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Developer PotatoDie
Username potatoDie
Uploaded September 15, 2022
Rating 4
Size 3,371 Kb
Views 24,288
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