index.html
<!DOCTYPE html>
<html>
<head>
<title>旋转的花</title>
<meta charset = "utf-8">
<!--width - 可视区域的宽度，值可为数字或关键词device-width -->
<!--height - viewport的高度-->
<!--initial-scale - 初始的缩放比例-->
<!--minimum-scale - 允许用户缩放到的最小比例-->
<!--maximum-scale - 允许用户缩放到的最大比例-->
<!--user-scalable - 用户是否可以手动缩放-->
<meta name = "viewport" content = "width = device-width, initial-scale = 1.0, maximum-scale = 1.0, user-scalable = 0" />
<!--content="telephone=yes" 在iPhone 手机上默认值是（电话号码显示为拨号的超链接）：-->
<!--可将telephone=no，则手机号码不被显示为拨号链接-->
<!--使设备浏览网页时对数字不启用电话功能（不同设备解释不同，itouch点击数字为存入联系人，iphone为拨打电话），忽略将页面中的数字识别为电话号码。-->
<meta name="format-detection" content="telephone=no" />
<!--忽略识别邮箱-->
<meta name="format-detection" content="email=no" />
<!--网站开启对 web app 程序的支持-->
<meta name="apple-mobile-web-app-capable" content="yes">
<!--在 web app 应用下状态条（屏幕顶部条）的颜色；(改变顶部状态条的颜色)-->
<!--默认值为 default（白色），可以定为 black（黑色）和 black-translucent（灰色半透明）；-->
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<!--http-equiv="Content-Type" 表示描述文档类型-->
<!--HTTP-EQUIV类似于HTTP的头部协议，它回应给浏览器一些有用的信息，以帮助正确和精确地显示网页内容-->
<meta http-equiv="Content-Type" content="text/html">
<!-- UC默认竖屏 ，UC强制全屏 -->
<meta name="full-screen" content="yes">
<!--使用了application这种应用模式后，页面讲默认全屏，禁止长按菜单，禁止收拾，标准排版，以及强制图片显示。-->
<!--应用模式-->
<meta name="browsermode" content="application">
<!-- QQ强制竖屏 QQ强制全屏 -->
<!--设置屏幕方向-->
<meta name="x5-orientation" content="portrait">
<!--设置全屏-->
<meta name="x5-fullscreen" content="true">
<!--设置屏幕模式-->
<meta name="x5-page-mode" content="app">
<!-- windows phone 点击无高光 -->
<meta name="msapplication-tap-highlight" content="no">
<link rel="stylesheet" href="./css/style.css">
<script src="http://cdn.static.runoob.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
<h1>{{lastname}} 家族成员:</h1>
<ul>
<li ng-repeat="x in names">{{x}} {{lastname}}</li>
</ul>
</div>
<div class="canvas">
<canvas id="id1" class="flower"></canvas>
<canvas id="id2" class="flower1"></canvas>
</div>
</body>
<script>
var app = angular.module('myApp', []).controller('myCtrl', function($scope, $rootScope) {
$scope.names = ["Emil", "Tobias", "Linus"];
$rootScope.lastname =$scope.names[$scope.names.length - 1];
});
</script>
<script src="./canvas.js"></script>
</html>
style.scss 实现旋转
$color: #ccc;
$rotate_360: rotate(360deg);
$rotateX_360: rotateX(360deg);
$rotateY_360: rotateX(360deg);
$rotate_0: rotate(0deg);
$rotateX_0: rotateX(0deg);
$rotateY_0: rotateX(0deg);
@function animation($title){
@return $title 8s linear infinite;
}
@mixin prefix($property, $value){
-webkit-#{$property}: $value;
-moz-#{$property}: $value;
-o-#{$property}: $value;
#{$property}: $value;
}
@mixin keyframes($animationName) {
@-webkit-keyframes #{$animationName} {
@content;
}
@-moz-keyframes #{$animationName} {
@content;
}
@-o-keyframes #{$animationName} {
@content;
}
@keyframes #{$animationName} {
@content;
}
}
html{
height: 100%;
}
body {
height: 100%;
}
.flower {
position: absolute;
@include prefix(animation, animation(myfirst));
}
.flower1 {
position: relative;
top: 0;
left: 0;
@include prefix(animation, animation(myfirst1));
}
@include keyframes(myfirst) {
100% {
@include prefix(transform, $rotate_360);
}
0% {
@include prefix(transform, $rotate_0);
}
}
@include keyframes(myfirst1) {
100% {
@include prefix(transform, $rotate_0);
//@include prefix(transform, $rotateY_0);
}
0% {
@include prefix(transform, $rotate_360);
//@include prefix(transform, $rotateY_360);
}
}
canvas.js 绘画花朵
var canvas;
var context;
function getDom(id){
canvas = document.getElementById(id);
canvas.width = document.documentElement.clientWidth;
canvas.height = document.documentElement.clientHeight - 300;
if(canvas == null){
return false;
}
context =canvas.getContext("2d");
}
(function flower(){
getDom('id1');
var Xo, Yo, A, B;
var n = 10;
context.lineWidth = 1;
Xo = canvas.width / 2;
Yo = canvas.height / 2;
console.log(Xo, Yo, 'Yo')
A = Yo * 0.75;
context.save();//保存当前绘制状态
//context.clearRect(0,0,width,height);//擦除之前绘制的图形
context.translate(Xo,Yo);//坐标原点移动到canvas元素中央
context.beginPath();//开始创建路径
for(B = 0; B < 6.5; B = B + 0.01) {
r = A * Math.sin(n * B);
x = r * Math.cos(B);
y = r * Math.sin(B);
context.fillStyle = "rgba(0,255,0,.25)";//设置填充颜色
context.lineTo(-x,-y);//绘制直线
context.fill();
}
context.closePath();//关闭路径
}
)();
(function flower1(){
getDom('id2');
var Xo, Yo, A, B;
var n = 10;
context.lineWidth = 1;
Xo = canvas.width / 2;
Yo = canvas.height / 2;
A = Yo * 0.45;
context.save();//保存当前绘制状态
//context.clearRect(0,0,width,height);//擦除之前绘制的图形
context.translate(Xo,Yo);//坐标原点移动到canvas元素中央
context.beginPath();//开始创建路径
for(B = 0; B < 6.5; B = B + 0.01) {
r = A * Math.sin(n * B) * Math.exp(-B / (20));
x = r * Math.cos(B);
y = r * Math.sin(B);
context.fillStyle = "rgba(255,0,0,.25)";//设置填充颜色
context.lineTo(-x,-y);//绘制直线
context.fill();
}
context.closePath();//关闭路径
}
)()
