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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

              
                
              
            
!

CSS

              
                head, body{
    width:100%;
    height:100%;
    overflow: hidden;
    top:0;
    left:0;
    margin:0;
    padding:0;
}
#fullscreen
{
    font-family: "Trebuchet", Verdana, sans-serif;
    position : absolute;

    width: 100%;
    left : 0;
    bottom: 0;

    cursor: pointer;
    color: white;
    background-color: black;
    height: 1.5em;
    font-variant: small-caps;

    text-align: center;

}
              
            
!

JS

              
                
//utils
var Point = function() { function Point(x,y,z) { this.x = x || 0; this.y = y || 0; this.z = z || 0; } var _p = Point.prototype; _p.constructor = Point; return Point; }(); Point.prototype = { draw: function (ctx, radius) { ctx.beginPath(); ctx.arc(this.x, this.y, radius || 1, 0, Math.PI * 2); ctx.stroke(); }, copy: function (other) { this.x = other.x; this.y = other.y; return this; }, clone: function () { return new Point( this.x, this.y ); }, add: function (other) { this.x += other.x; this.y += other.y; return this; }, sub: function (other) { this.x -= other.x; this.y -= other.y; return this; }, multiply: function (other) { this.x *= other.x; this.y *= other.y; return this; }, negate: function() { this.x *= 1; this.y *= 1; return this; }, length: function () { return Math.sqrt(this.x * this.x + this.y * this.y); }, normalize: function (length) { length = length || 1; var div = ( 1 / this.length() ) * length; this.x *= div; this.y *= div; return this; }, dot : function( other ) { return this.x * other.x + this.y * other.y; } };
function distance(a,b) { var dx = a.x - b.x; var dy = a.y - b.y; var dz = a.z - b.z; return Math.sqrt( dx*dx + dy*dy + dz*dz ); }
var Poisson = function( exports ) { exports.distanceEvaluator = function( cell, point, minDist ){ return distance( cell, point ) < minDist; }; var width, height, grid; function distribute( count, radius, w, h,cx, cy ) { width = w; height = h; var cellSize = exports.cellSize = radius / Math.sqrt( 2 ); exports.grid = grid = buildGrid( Math.ceil( w / cellSize), Math.ceil( h / cellSize) ); count = Math.min( count, Math.floor( w / cellSize) * Math.floor( h / cellSize) ); var processList = []; var firstPoint = new Point( cx || w *.5, cy || h *.5); processList.push(firstPoint); setGridPoint(imageToGrid(firstPoint, cellSize), firstPoint ); var result = []; var total = count; while (result.length < count ) { var added = false; var attempt = 10; while (!added ){ var rid = ~~( Math.random() * processList.length ); var point = processList[ rid ]; var newPoint = generateRandomPointAround( point, radius ); if (inRectangle(newPoint) && !inNeighbourhood(grid, newPoint, radius, cellSize ) ) { processList.push(newPoint); result.push(newPoint); setGridPoint( imageToGrid( newPoint, cellSize ),  newPoint ); added = true; } if (attempt--<=0)break; } if (total-- <=0)break; } return result; } function buildGrid( w, h ) { var g = []; for (var i = 0; i < w; i++ ) { var tmp = []; for (var j = 0; j < h; j++ ) { tmp.push(null ); } g.push(tmp ); } return g; } function setGridPoint( gridPoint, value ) { if (grid[gridPoint.x ][ gridPoint.y ] != null )return; grid[gridPoint.x ][ gridPoint.y ] = value; } function inRectangle( point ) { return point.x > 0 && point.x < width && point.y > 0 && point.y < height; } function imageToGrid( point, cellSize) { var gridX = ~~( point.x / cellSize ); var gridY = ~~( point.y / cellSize ); return new Point(gridX, gridY); } function generateRandomPointAround( point, mindist ) { var r1 = Math.random(); var r2 = Math.random(); var radius = mindist * ( r1 + 1); var angle = 2 * Math.PI * r2; var newX = point.x + radius * Math.cos(angle); var newY = point.y + radius * Math.sin(angle); return new Point(newX, newY); } function inNeighbourhood( grid, point, mindist, cellSize) { var gridPoint = imageToGrid( point, cellSize ); var cellsAroundPoint = squareAroundPoint( grid, gridPoint.x, gridPoint.y, 4 ); var valid = false; cellsAroundPoint.forEach( function( cell ){ if (cell == null)return; if (exports.distanceEvaluator(cell, point, mindist ) ){ valid = true; } }); return valid; } function squareAroundPoint( grid, x, y, offset ) { var off = Math.round( offset / 2 ); var minX = Math.max( 0, Math.min( grid.length, x - off ) ); var maxX = Math.max( 0, Math.min( grid.length, x + off ) ); var minY = Math.max( 0, Math.min( grid[0].length, y - off ) ); var maxY = Math.max( 0, Math.min( grid[0].length, y + off ) ); var tmp = []; for (var i = minX; i < maxX; i++ ) { for (var j = minY; j < maxY; j++ ) { if (grid[i ][ j ] != null )tmp.push( grid[ i ][ j ] ); } } return tmp; } exports.distribute = distribute; return exports; }({});
//utils


var arcs;
var iterations = 0;
var maxIterations = 200;

function init() {

    iterations = 0;
    cancelAnimationFrame( update );

    var count = 200;
    var radius = 40;
    arcs = Poisson.distribute(count, radius, w, h );//, Math.random() * h, Math.random() * w  );


    var dist, min, closest;
    arcs.forEach(function (a){

        min = 10e10;
        arcs.forEach( function(b)
        {
            if( a == b )return;

            dist = distance(a,b);
            if( dist < min )
            {
                min = dist;
                closest = b;
            }
        });
        a.closest = closest;

    });

    arcs.forEach(function (a, i){

        a.radius = .5 * radius + ( Math.random() * .5 ) * radius;
        a.speed = RAD+ Math.random() * 10 * RAD;
        a.start = Math.random() * PI2;
        a.length = Math.random() * PI + 10 * RAD;

    });


}

function update()
{
    if( iterations++ < maxIterations )
    {
        requestAnimationFrame( update );
    }
    else
    {
        cancelAnimationFrame( update );
    }

    ctx.strokeStyle = 'rgba( 0,0,0, '+ 5/0xff + ')';

    var zero = new Point();
    var a0 = new Point();
    var a1 = new Point();
    var b;
    var b0 = new Point();
    var b1 = new Point();
    var n0, n1;

    ctx.beginPath();
    arcs.forEach( function(a){

        a.start += a.speed;

        a0.x = Math.cos( a.start + a.length *.5 ) * a.radius / 2;
        a0.y = Math.sin( a.start + a.length *.5 ) * a.radius / 2;

        b = a.closest;

        b0.x = Math.cos( b.start + b.length *.5 ) * b.radius / 2;
        b0.y = Math.sin( b.start + b.length *.5 ) * b.radius / 2;

        a0.normalize();
        b0.normalize();

        if( a0.dot( b0 ) < 0 )
        {
            ctx.moveTo( a.x, a.y );
            ctx.arc(a.x, a.y, a.radius / 2, a.start, a.start + a.length );
            ctx.lineTo( a.x, a.y );


            a0.x = a.x + Math.cos( a.start ) * a.radius / 2;
            a0.y = a.y + Math.sin( a.start ) * a.radius / 2;

            a1.x = a.x + Math.cos( a.start + a.length ) * a.radius / 2;
            a1.y = a.y + Math.sin( a.start + a.length ) * a.radius / 2;

            b0.x = b.x + Math.cos( b.start ) * b.radius / 2;
            b0.y = b.y + Math.sin( b.start ) * b.radius / 2;

            b1.x = b.x + Math.cos( b.start + b.length ) * b.radius / 2;
            b1.y = b.y + Math.sin( b.start + b.length ) * b.radius / 2;

            ctx.arc(a.x, a.y, a.radius / 2, a.start, a.start + a.length );
            ctx.moveTo( a0.x, a0.y );
            ctx.lineTo( a1.x, a1.y );
            ctx.lineTo( b0.x, b0.y );
            ctx.lineTo( b1.x, b1.y );
            ctx.lineTo( a0.x, a0.y );
        }

    });
    ctx.stroke();

}

///////////////////////////////////////////////

var PI = Math.PI;
var PI2 = PI * 2;
var RAD = PI / 180;
var DEG = 180 / PI;

//raf: https://github.com/cagosta/requestAnimationFrame/blob/master/app/requestAnimationFrame.js
(function(global) {(function() {if (global.requestAnimationFrame) {return;} if (global.webkitRequestAnimationFrame) {global.requestAnimationFrame = global[ 'webkitRequestAnimationFrame' ]; global.cancelAnimationFrame = global[ 'webkitCancelAnimationFrame' ] || global[ 'webkitCancelRequestAnimationFrame' ];} var lastTime = 0; global.requestAnimationFrame = function(callback) {var currTime = new Date().getTime(); var timeToCall = Math.max(0, 16 - (currTime - lastTime)); var id = global.setTimeout(function() {callback(currTime + timeToCall);}, timeToCall); lastTime = currTime + timeToCall; return id;}; global.cancelAnimationFrame = function(id) {clearTimeout(id);};})(); if (typeof define === 'function') {define(function() {return global.requestAnimationFrame;});}})(window);

var canvas = document.createElement( 'canvas' );
document.body.appendChild( canvas );


var w = canvas.width = window.innerWidth;
var h = canvas.height = window.innerHeight;
var ctx = canvas.getContext("2d");

window.onmousedown =
window.ontouchstart =
window.onresize = function()
{

    w = canvas.width = window.innerWidth;
    h = canvas.height = window.innerHeight;
    init();
    update();

};

var btn = document.createElement( "div" );
btn.id = btn.innerHTML = "fullscreen";
document.body.appendChild( btn );

btn.onmousedown =
btn.ontouchstart =
function ( e )
{
    if (canvas.requestFullscreen) {
        canvas.requestFullscreen();
    } else if (canvas.mozRequestFullScreen) {
        canvas.mozRequestFullScreen();
    } else if (canvas.webkitRequestFullscreen) {
        canvas.webkitRequestFullscreen();
    }
};

init();
update();
              
            
!
999px

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