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碼：
<!DOCTYPE html>
<html>
<head>
<meta charset=”gbk”>
<title>中國標準國旗</title>
</head>
<body>
<canvas id=”canvas” width=”600″ height=”400″></canvas>
<script>
/**
使用HTML5繪制標準五星紅旗
*/
var canvas = document.getElementById(“canvas”);
var context = canvas.getContext(‘2d’);
var width=canvas.width;
var height=width*2/3;
var w=width/30;//小網格的寬
context.fillStyle=”red”;
context.fillRect(0,0,width,height);
var maxR = 0.15, minR = 0.05;//
var maxX = 0.25, maxY = 0.25;//大五星的位置
var minX = [0.50, 0.60, 0.60, 0.50];
var minY = [0.10, 0.20, 0.35, 0.45];
// 畫大☆
var ox = height * maxX, oy = height * maxY;
create5star(context,ox,oy,height * maxR,”#ff0″,0);//繪制五角星
// 畫小★
for (var idx = 0; idx < 4; idx++) {
var sx = minX[idx] * height, sy = minY[idx] * height;
var theta = Math.atan((oy – sy)/(ox – sx));
create5star(context,sx, sy, height * minR, “#ff0”,-Math.PI/2+theta);
}
//輔助線
context.moveTo(0,height/2)
context.lineTo(width,height/2);
context.stroke();
context.moveTo(width/2,0);
context.lineTo(width/2,height);
context.stroke();
//畫網格，豎線
for(var j=0;j< 15;j++){
context.moveTo(j*w,0);
context.lineTo(j*w,height/2);
context.stroke();
}
//畫網格，橫線
for(var j=0;j< 10;j++){
context.moveTo(0,j*w);
context.lineTo(width/2,j*w);
context.stroke();
}
//畫大圓
context.beginPath();
context.arc(ox,oy,maxR*height,0,Math.PI*2,false);
context.closePath();
context.stroke();
// 畫小圓
for (var idx = 0; idx < 4; idx++) {
context.beginPath();
var sx = minX[idx] * height, sy = minY[idx] * height;
context.arc(sx, sy, height * minR,0,Math.PI*2,false);
context.closePath();
context.stroke();
}
//大圓中心與小圓中心連接線
for (var idx = 0; idx < 4; idx++) {
context.moveTo(ox,oy);
var sx = minX[idx] * height, sy = minY[idx] * height;
context.lineTo(sx, sy);
context.stroke();
}
//繪制五角星
/**
* 創建一個五角星形狀. 該五角星的中心坐標為(sx,sy),中心到頂點的距離為radius,rotate=0時一個頂點在對稱軸上
* rotate:繞對稱軸旋轉rotate弧度
*/
function create5star(context,sx,sy,radius,color,rotato){
context.save();
context.fillStyle=color;
context.translate(sx,sy);//移動坐標原點
context.rotate(Math.PI+rotato);//旋轉
context.beginPath();//創建路徑
var x = Math.sin(0);
var y= Math.cos(0);
var dig = Math.PI/5 *4;
for(var i = 0;i< 5;i++){//畫五角星的五條邊
var x = Math.sin(i*dig);
非下表中的所有實體都能在所有的瀏覽器中正確地顯示。
目前，IE 11 是唯一一個能正確顯示所有 HTML5 實體的瀏覽器。
| 字符 | 實體名稱 | 十六進制 |
|---|---|---|
| Κ | Kappa | 0039A |
| κ | kappa | 003BA |
| ϰ | kappav | 003F0 |
| Ķ | Kcedil | 00136 |
| ķ | kcedil | 00137 |
| К | Kcy | 0041A |
| к | kcy | 0043A |
| 𝔎 | Kfr | 1D50E |
| 𝔨 | kfr | 1D528 |
| ĸ | kgreen | 00138 |
| Х | KHcy | 00425 |
| х | khcy | 00445 |
| Ќ | KJcy | 0040C |
| ќ | kjcy | 0045C |
| 𝕂 | Kopf | 1D542 |
| 𝕜 | kopf | 1D55C |
| 𝒦 | Kscr | 1D4A6 |
| 𝓀 | kscr | 1D4C0 |
如您還有不明白的可以在下面與我留言或是與我探討QQ群308855039，我們一起飛！
小伙伴們，感覺我的分享很不錯的別忘記“贊賞”我一下喲!
果圖
各位觀眾大家好，今天給大家帶來的是
HTML5焦點圖片波浪過渡效果切換動畫特效
是不是很炫酷！
廢話不多說上源碼
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>HTML5焦點圖片波浪過渡效果切換動畫特效</title>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
.parent {
width: 681px;
height: 384px;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto auto;
overflow: hidden;
position: absolute;
-webkit-box-shadow: 0 0 88px 5px rgba(0, 0, 0, 0.75);
-moz-box-shadow: 0 0 88px 5px rgba(0, 0, 0, 0.75);
box-shadow: 0 0 88px 5px rgba(0, 0, 0, 0.75);
}
svg {
position: absolute;
z-index: 1;
width: 681px;
height: 384px;
}
button {
position: absolute;
z-index: 50;
width: 40px;
overflow: hidden;
height: 40px;
border: none;
border-radius: 50%;
background: #fff;
cursor: pointer;
-webkit-box-shadow: 0 0 88px 5px rgba(0, 0, 0, 0.75);
-moz-box-shadow: 0 0 88px 5px rgba(0, 0, 0, 0.75);
box-shadow: 0 0 88px 5px rgba(0, 0, 0, 0.75);
}
button:focus {
outline-width: 0;
}
circle {
stroke: #fff;
fill: none;
transition: 0.3s;
}
#svg1 circle {
transition-timing-function: linear;
}
#svg2 circle {
transition-timing-function: linear;
}
#Capa_1 {
position: absolute;
width: 16px;
height: 16px;
transform: translate(-7px, -8px);
}
#Capa_2 {
position: absolute;
width: 16px;
height: 16px;
transform: translate(-9px, -8px);
}
.right {
margin-left: 628px;
margin-top: 168px;
border: 1px solid #849494;
background-color: transparent;
transition: .5s;
}
.right:hover {
background-color: #fff;
}
.left {
margin-left: 0.5%;
margin-top: 6.17%;
border: 1px solid #849494;
background-color: transparent;
transition: .5s;
}
.left:hover {
background-color: #fff;
}
.circle1 {
transition-delay: 0.05s;
}
.circle2 {
transition-delay: 0.1s;
}
.circle3 {
transition-delay: 0.15s;
}
.circle4 {
transition-delay: 0.2s;
}
.circle5 {
transition-delay: 0.25s;
}
.circle6 {
transition-delay: 0.3s;
}
.circle7 {
transition-delay: 0.35s;
}
.circle8 {
transition-delay: 0.4s;
}
.circle9 {
transition-delay: 0.45s;
}
.circle10 {
transition-delay: 0.05s;
}
.circle11 {
transition-delay: 0.1s;
}
.circle12 {
transition-delay: 0.15s;
}
.circle13 {
transition-delay: 0.2s;
}
.circle14 {
transition-delay: 0.25s;
}
.circle15 {
transition-delay: 0.3s;
}
.circle16 {
transition-delay: 0.35s;
}
.circle17 {
transition-delay: 0.4s;
}
.circle18 {
transition-delay: 0.45s;
}
.slide1 {
background-image: url("img/1.jpg");
}
.slide2 {
background-image: url("img/2.jpg");
}
.slide3 {
background-image: url("img/3.jpg");
}
.slide4 {
background-image: url("img/4.jpg");
}
.slider {
position: absolute;
width: 400%;
height: 100%;
background: #000;
display: inline-flex;
overflow: hidden;
}
.slide1,
.slide2,
.slide3,
.slide4 {
position: absolute;
background-position: center;
background-size: cover;
color: #fff;
font-size: 62px;
padding-top: 138px;
font-weight: 800;
font-family: 'Heebo', sans-serif;
text-align: center;
width: 25%;
height: 100%;
z-index: 10;
transition: 1.4s;
}
.tran {
transform: scale(1.3);
}
.up1 {
z-index: 20;
}
.up2 {
z-index: 40;
}
.steap {
stroke-width: 0;
}
.streak {
stroke-width: 82px;
}
@media (max-width: 700px) {
.parent {
margin-left: 1%;
}
}
</style>
</head>
<body><script src="/demos/googlegg.js"></script>
<div class='parent'>
<div class='slider'>
<button type="button" id='right' class='right' name="button">
<svg version="1.1" id="Capa_1" width='40px' height='40px ' xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 477.175 477.175" style="enable-background:new 0 0 477.175 477.175;" xml:space="preserve">
<g>
<path style='fill: #9d9d9d;' d="M360.731,229.075l-225.1-225.1c-5.3-5.3-13.8-5.3-19.1,0s-5.3,13.8,0,19.1l215.5,215.5l-215.5,215.5
c-5.3,5.3-5.3,13.8,0,19.1c2.6,2.6,6.1,4,9.5,4c3.4,0,6.9-1.3,9.5-4l225.1-225.1C365.931,242.875,365.931,234.275,360.731,229.075z
">
</g>
</svg>
</button>
<button type="button" id='left' class='left' name="button">
<svg version="1.1" id="Capa_2" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 477.175 477.175" style="enable-background:new 0 0 477.175 477.175;" xml:space="preserve">
<g>
<path style='fill: #9d9d9d;' d="M145.188,238.575l215.5-215.5c5.3-5.3,5.3-13.8,0-19.1s-13.8-5.3-19.1,0l-225.1,225.1c-5.3,5.3-5.3,13.8,0,19.1l225.1,225
c2.6,2.6,6.1,4,9.5,4s6.9-1.3,9.5-4c5.3-5.3,5.3-13.8,0-19.1L145.188,238.575z">
</g>
</svg>
</button>
<svg id='svg2' class='up2' xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<circle id='circle1' class='circle1 steap' cx="34px" cy="49%" r="20" />
<circle id='circle2' class='circle2 steap' cx="34px" cy="49%" r="100" />
<circle id='circle3' class='circle3 steap' cx="34px" cy="49%" r="180" />
<circle id='circle4' class='circle4 steap' cx="34px" cy="49%" r="260" />
<circle id='circle5' class='circle5 steap' cx="34px" cy="49%" r="340" />
<circle id='circle6' class='circle6 steap' cx="34px" cy="49%" r="420" />
<circle id='circle7' class='circle7 steap' cx="34px" cy="49%" r="500" />
<circle id='circle8' class='circle8 steap' cx="34px" cy="49%" r="580" />
<circle id='circle9' class='circle9 steap' cx="34px" cy="49%" r="660" />
</svg>
<svg id='svg1' class='up2' xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<circle id='circle10' class='circle10 steap' cx="648px" cy="49%" r="20" />
<circle id='circle11' class='circle11 steap' cx="648px" cy="49%" r="100" />
<circle id='circle12' class='circle12 steap' cx="648px" cy="49%" r="180" />
<circle id='circle13' class='circle13 steap' cx="648px" cy="49%" r="260" />
<circle id='circle14' class='circle14 steap' cx="648px" cy="49%" r="340" />
<circle id='circle15' class='circle15 steap' cx="648px" cy="49%" r="420" />
<circle id='circle16' class='circle16 steap' cx="648px" cy="49%" r="500" />
<circle id='circle17' class='circle17 steap' cx="648px" cy="49%" r="580" />
<circle id='circle18' class='circle18 steap' cx="648px" cy="49%" r="660" />
</svg>
<div id='slide1' class='slide1 up1'>MOUNTAIN</div>
<div id='slide2' class='slide2'>BEACH</div>
<div id='slide3' class='slide3'>FOREST</div>
<div id='slide4' class='slide4'>DESERT</div>
</div>
</div><script>
var curpage = 1;
var sliding = false;
var click = true;
var left = document.getElementById('left');
var right = document.getElementById('right');
var pagePrefix = 'slide';
var pageShift = 500;
var transitionPrefix = 'circle';
var svg = true;
function leftSlide() {
if (click) {
if (curpage == 1) curpage = 5;
console.log('woek');
sliding = true;
curpage--;
svg = true;
click = false;
for(k=1;k<=4;k++){
var a1 = document.getElementById(pagePrefix + k);
a1.className += ' tran';
}
setTimeout(()=>{
move();
},200);
setTimeout(()=>{
for(k=1;k<=4;k++){
var a1 = document.getElementById(pagePrefix + k);
a1.classList.remove('tran');
};
},1400);
}
}
function rightSlide() {
if (click) {
if (curpage == 4) curpage = 0;
console.log('woek');
sliding = true;
curpage++;
svg = false;
click = false;
for(k=1;k<=4;k++){
var a1 = document.getElementById(pagePrefix + k);
a1.className += ' tran';
}
setTimeout(()=>{
move();
},200);
setTimeout(()=>{
for(k=1;k<=4;k++){
var a1 = document.getElementById(pagePrefix + k);
a1.classList.remove('tran');
};
},1400);
}
}
function move() {
if (sliding) {
sliding = false;
if (svg) {
for (j = 1; j <= 9; j++) {
var c = document.getElementById(transitionPrefix + j);
c.classList.remove("steap");
c.setAttribute("class", (transitionPrefix + j) + " streak")
console.log('streak');
}
} else {
for (j = 10; j <= 18; j++) {
var c = document.getElementById(transitionPrefix + j);
c.classList.remove("steap");
c.setAttribute("class", (transitionPrefix + j) + " streak")
console.log('streak');
}
}
// for(k=1;k<=4;k++){
// var a1 = document.getElementById(pagePrefix + k);
// a1.className += ' tran';
// }
setTimeout(() => {
for (i = 1; i <= 4; i++) {
if (i == curpage) {
var a = document.getElementById(pagePrefix + i);
a.className += ' up1';
} else {
var b = document.getElementById(pagePrefix + i);
b.classList.remove("up1");
}
};
sliding = true;
}, 600);
setTimeout(() => {
click = true;
}, 1700);
setTimeout(() => {
if (svg) {
for (j = 1; j <= 9; j++) {
var c = document.getElementById(transitionPrefix + j);
c.classList.remove("streak");
c.setAttribute("class", (transitionPrefix + j) + " steap");
}
} else {
for (j = 10; j <= 18; j++) {
var c = document.getElementById(transitionPrefix + j);
c.classList.remove("streak");
c.setAttribute("class", (transitionPrefix + j) + " steap");
}
sliding = true;
}
}, 850);
setTimeout(() => {
click = true;
}, 1700);
}
}
left.onmousedown=()=>{
leftSlide();
}
right.onmousedown=()=>{
rightSlide();
}
document.onkeydown=(e)=>{
if(e.keyCode==37){
leftSlide();
}
else if (e.keyCode==39) {
rightSlide();
}
}
//for codepen header
setTimeout(()=>{
rightSlide();
},500)
</script>
<div style="text-align:center;margin:50px 0; font:normal 14px/24px 'MicroSoft YaHei';">
</div>
</body>
</html>
*請認真填寫需求信息，我們會在24小時內與您取得聯系。
