Beautiful graphic tree implemented with css and js
This article mainly shares with you examples of beautiful graphic trees implemented in css and js. I hope it can help you.
Let me share with you a beautiful and cool graphic tree effect generated using css and js. The relevant code is as follows:
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>cloth</title>
<style>
@import url(http://fonts.googleapis.com/css?family=Poiret+One);
html {
overflow: hidden;
touch-action: none;
content-zooming: none;
}
body {
position: absolute;
margin: 0;
padding: 0;
background: #000;
width: 100%;
height: 100%;
}
#canvas {
width: 100%;
height: 100%;
background: #000;
position: absolute;
}
#text {
position: absolute;
left: 0;
top: 50%;
width: 100%;
pointer-events: none;
}
#text p {
position: absolute;
color: #888;
left: 0;
width: 100%;
text-align: center;
top: -12vmin;
font-family: 'Poiret One', cursive;
font-size: 6vmin;
}
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<p id="text">
<p id="clic" nowrap>
</p>
<script type="text/javascript" src="http://cdn.gbtags.com/jquery/1.11.1/jquery.min.js"></script>
<script>
! function() {
"use strict";
// variables
var root = null;
var hue = 0;
var automove = true;
var angleX = 0;
var angleY = 0;
/////////////////////////
var resolution = 1;
var maxLevels = 6;
var branchLength = 10 * resolution;
var leafSize = 100;
var growSpeed = 2;
var maxAngle = 1.2;
var freq = 0.3;
/////////////////////////
// branch constructor
function Branch(parent, level, hue, x, y) {
this.parent = parent;
this.b1 = null;
this.b2 = null;
this.b3 = null;
this.hue = hue;
this.p0 = parent ? parent.p1 : new Point(x, y, 0);
this.p1 = new Point(
x,
y,
parent === root ?
0 :
(
parent ?
parent.p1.z + (
level ?
Math.random() * 10 - 5 :
0
) :
0
)
);
this.level = level;
this.life = 0;
this.angle = 0;
this.vx = 0;
this.vy = 0;
}
// grow branch
Branch.prototype.grow = function() {
// z move
this.p1.z--;
// 3D projection
this.p1.project();
// recursively grow children branches
this.b1 && this.b1.grow();
this.b2 && this.b2.grow();
// grow
if (this.life-- > 1) {
this.p1.x += this.vx;
this.p1.y += this.vy;
}
// done - push more children branches
if (this.life === 1 && this.level > 0) {
this.b1 = newBranch(this);
if (Math.random() <= freq) this.b2 = newBranch(this);
this.life--;
}
// cut the tree
if (this.p0.z <= -250) {
this.parent = null;
}
// draw the branch
var width = resolution * (this.level === 1 ?
1 :
((this.level + 1) * (this.level + 1)) * 0.5 * this.p1.scale
);
var color = 100 - Math.abs(this.p0.z * 0.5);
ctx.beginPath();
if (this.level) {
ctx.lineWidth = width;
ctx.strokeStyle = "hsl(" + (this.hue % 360) + ", 14%," + color + "%)";
ctx.moveTo(this.p0.xp, this.p0.yp);
ctx.lineTo(this.p1.xp, this.p1.yp);
ctx.stroke();
} else {
ctx.globalCompositeOperation = "lighter";
var c = ((this.hue + 180) % 360);
ctx.fillStyle = "hsl(" + c + ", 100%, 70%)";
ctx.arc(this.p1.xp, this.p1.yp, width * leafSize * 0.1, 0, Math.PI * 2);
ctx.fill();
ctx.beginPath();
ctx.fillStyle = "hsl(" + c + ", 60%, 6%)";
ctx.arc(this.p1.xp, this.p1.yp, width * leafSize, 0, Math.PI * 2);
ctx.fill();
ctx.globalCompositeOperation = "source-over";
}
}
// 3D point constructor
function Point(x, y, z) {
this.x = x;
this.y = y;
this.z = z;
this.scale = 0;
this.xp = 0;
this.yp = 0;
}
// 3D point projection
Point.prototype.project = function() {
this.scale = 265 / (265 + this.z);
this.xp = canvas.centerX + (this.x - canvas.centerX) * this.scale;
this.yp = canvas.centerY + (this.y - canvas.centerY) * this.scale;
}
// new branch factory
function newBranch(parent) {
var branch = new Branch(parent, parent.level - 1, hue, parent.p1.x, parent.p1.y);
branch.angle = Math.atan2(
parent.p1.y - parent.p0.y,
parent.p1.x - parent.p0.x
) + (branch.level ?
(Math.random() * maxAngle - (maxAngle * 0.5)) :
0
);
branch.vx = Math.cos(branch.angle) * growSpeed;
branch.vy = Math.sin(branch.angle) * growSpeed;
branch.life = branch.level ?
Math.round(Math.random() * branch.level * branchLength) + 1 :
2;
return branch;
}
// animate the tree
function tree() {
// clear screen
ctx.fillStyle = '#000';
ctx.fillRect(0, 0, canvas.width, canvas.height);
// pointer trail
if (pointer.moveDistance > 10 * resolution) {
pointer.moveDistance = 0;
// main trunk
var branch = new Branch(
root,
root.level,
hue,
root.p1.x,
root.p1.y
);
// add another branch
if (Math.random() <= freq) root.b1 = newBranch(root);
// new root
root = branch;
root.p1.x = pointer.x;
root.p1.y = pointer.y;
}
// increment color
hue++;
// traverse the tree
var trunk = root;
while (trunk) {
trunk.grow();
trunk = trunk.parent;
}
}
// prepare the canvas
var canvas = {
elem: document.getElementById('canvas'),
resize: function() {
this.width = this.elem.width = this.elem.offsetWidth * resolution;
this.height = this.elem.height = this.elem.offsetHeight * resolution;
this.centerX = this.width * 0.5;
this.centerY = this.height * 0.5;
}
}
var ctx = canvas.elem.getContext("2d");
window.addEventListener('resize', canvas.resize.bind(canvas), false);
canvas.resize();
// pointer events
var pointer = {
x: 0,
y: 0,
px: 0,
py: 0,
moveDistance: 0,
move: function(e) {
e.preventDefault();
var pointer = e.targetTouches ? e.targetTouches[0] : e;
// stop automove
if (automove) {
automove = false;
document.getElementById("clic").innerHTML = "";
}
this.x = pointer.clientX * resolution;
this.y = pointer.clientY * resolution;
this.distance();
// render tree
requestAnimationFrame(tree);
},
distance: function() {
var dx = this.x - this.px;
var dy = this.y - this.py;
this.moveDistance += Math.sqrt(dx * dx + dy * dy);
// speed limit
if (!automove && this.moveDistance > 40) {
this.x = this.px + dx * 0.1;
this.y = this.py + dy * 0.1;
}
this.px = this.x;
this.py = this.y;
}
}
window.addEventListener("mousemove", pointer.move.bind(pointer), false);
canvas.elem.addEventListener("touchmove", pointer.move.bind(pointer), false);
// auto start
! function auto() {
automove && requestAnimationFrame(auto);
// lissajou
pointer.x = canvas.centerX + canvas.centerX * Math.cos(angleX += 0.02) * 0.20;
pointer.y = canvas.centerY + canvas.centerY * Math.sin(angleY += 0.04) * 0.25;
pointer.distance();
// create the first branch
if (!root) {
root = new Branch(false, maxLevels, hue, pointer.x, pointer.y);
root.p0 = root.p1;
root.p0.project();
}
// render tree
tree();
}();
}();
</script>
</body>
</html>The above is the detailed content of Beautiful graphic tree implemented with css and js. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1387
52
How to use bootstrap in vue
Apr 07, 2025 pm 11:33 PM
Using Bootstrap in Vue.js is divided into five steps: Install Bootstrap. Import Bootstrap in main.js. Use the Bootstrap component directly in the template. Optional: Custom style. Optional: Use plug-ins.
The Roles of HTML, CSS, and JavaScript: Core Responsibilities
Apr 08, 2025 pm 07:05 PM
HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.
How to write split lines on bootstrap
Apr 07, 2025 pm 03:12 PM
There are two ways to create a Bootstrap split line: using the tag, which creates a horizontal split line. Use the CSS border property to create custom style split lines.
Understanding HTML, CSS, and JavaScript: A Beginner's Guide
Apr 12, 2025 am 12:02 AM
WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.
How to resize bootstrap
Apr 07, 2025 pm 03:18 PM
To adjust the size of elements in Bootstrap, you can use the dimension class, which includes: adjusting width: .col-, .w-, .mw-adjust height: .h-, .min-h-, .max-h-
How to use bootstrap button
Apr 07, 2025 pm 03:09 PM
How to use the Bootstrap button? Introduce Bootstrap CSS to create button elements and add Bootstrap button class to add button text
How to set up the framework for bootstrap
Apr 07, 2025 pm 03:27 PM
To set up the Bootstrap framework, you need to follow these steps: 1. Reference the Bootstrap file via CDN; 2. Download and host the file on your own server; 3. Include the Bootstrap file in HTML; 4. Compile Sass/Less as needed; 5. Import a custom file (optional). Once setup is complete, you can use Bootstrap's grid systems, components, and styles to create responsive websites and applications.
How to insert pictures on bootstrap
Apr 07, 2025 pm 03:30 PM
There are several ways to insert images in Bootstrap: insert images directly, using the HTML img tag. With the Bootstrap image component, you can provide responsive images and more styles. Set the image size, use the img-fluid class to make the image adaptable. Set the border, using the img-bordered class. Set the rounded corners and use the img-rounded class. Set the shadow, use the shadow class. Resize and position the image, using CSS style. Using the background image, use the background-image CSS property.
