CSS3 实现雷达扫描图的示例代码

CSS3 实现雷达扫描图的示例代码,第1张

CSS3 实现雷达扫描图的示例代码

通过css3实现炫酷的雷达扫描图

直接上代码:

// index.html
<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>雷达扫描图</title>

    <link rel="stylesheet" href="css/index.css">

</head>

<body>

    <div class="radar"></div>

</body>

</html>
//index.css
* {
    box-sizing: border-box;
}

html {
    height: 100%;
    background-color: #111;
    font-size: 10px;
}


body {
    background-image:
        linear-gradient(0deg, transparent 24%, rgba(32, 255, 77, 0.15) 26%, transparent 27%, transparent 74%, rgba(32, 255, 77, 0.15) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(32, 255, 77, 0.15) 26%, transparent 27%, transparent 74%, rgba(32, 255, 77, 0.15) 76%, transparent 77%, transparent);
    background-size: 8rem 8rem;
    width: 100%;
    height: 100%;
    position: relative;
    padding: 0;
    margin: 0;
    font-size: 1.6rem;
}

.radar {
    background:
        -webkit-radial-gradient(center, rgba(32, 255, 77, 0.3) 0%, rgba(32, 255, 77, 0) 75%),
        -webkit-repeating-radial-gradient(rgba(32, 255, 77, 0) 5.8%, rgba(32, 255, 77, 0) 18%, #20ff4d 18.6%, rgba(32, 255, 77, 0) 18.9%),
        -webkit-linear-gradient(90deg, rgba(32, 255, 77, 0) 49.5%, #20ff4d 50%, rgba(32, 255, 77, 0) 50.2%),
        -webkit-linear-gradient(0deg, rgba(32, 255, 77, 0) 49.5%, #20ff4d 50%, rgba(32, 255, 77, 0) 50.2%);
    width: 75vw;
    height: 75vw;
    max-height: 75vh;
    max-width: 75vh;
    position: relative;
    left: 50%;
    top: 50%;
    /* 元素居中定位 */
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 0.2rem solid #20ff4d;
    overflow: hidden;
}

.radar:before {
    content: ' ';
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    animation: blips 5s infinite;
    animation-timing-function: linear;
    animation-delay: 1.4s;
}

.radar:after {
    content: ' ';
    display: block;
    background-image: linear-gradient(44deg, rgba(0, 255, 51, 0) 50%, #00ff33 100%);
    width: 50%;
    height: 50%;
    position: absolute;
    top: 0;
    left: 0;
    animation: radar-beam 5s infinite;
    /* 速度相同 */
    animation-timing-function: linear;
    transform-origin: bottom right;
    border-radius: 100% 0 0 0;
}

@keyframes radar-beam {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes blips {
  14% {
    background: radial-gradient(2vmin circle at 75% 70%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%);
  }

  14.0002% {
    background: radial-gradient(2vmin circle at 75% 70%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%), radial-gradient(2vmin circle at 63% 72%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%);
  }

  25% {
    background: radial-gradient(2vmin circle at 75% 70%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%), radial-gradient(2vmin circle at 63% 72%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%), radial-gradient(2vmin circle at 56% 86%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%);
  }

  26% {
    background: radial-gradient(2vmin circle at 75% 70%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%), radial-gradient(2vmin circle at 63% 72%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%), radial-gradient(2vmin circle at 56% 86%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%);
    opacity: 1;
  }

  100% {
    background: radial-gradient(2vmin circle at 75% 70%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%), radial-gradient(2vmin circle at 63% 72%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%), radial-gradient(2vmin circle at 56% 86%, #ffffff 10%, #20ff4d 30%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
  }
} 

ps: 转自https://www.html5tricks.com/pure-css3-radar-scanning.html

总结

到此这篇关于CSS3 实现雷达扫描图的示例代码的文章就介绍到这了,更多相关css3雷达扫描图内容请搜索脚本之家以前的文章或继续浏览下面的相关文章,希望大家以后多多支持脚本之家!

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