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我有 svg 并且我使用@keyframes 为这个 svg 放置动画..它正在工作..
但我的问题是:当我们滚动窗口(浏览器)时如何绘制这个 svg...
因此,当用户向下滚动时,此 svg 开始绘制....
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
.oa-hotel {
fill: #FFF;
stroke: #FFF;
stroke-dasharray: 500;
stroke-dashoffset: 500;
}
.oa-hotel-animate {
-webkit-animation: dash 5s linear alternate;
animation: dash 5s linear alternate;
}
@keyframes dash {
from {
stroke-dashoffset: 500; fill: #FFF !important;
fill: black;
}
to {
stroke-dashoffset: 0; fill: #FFF !important;
fill: white;
}
}
@-webkit-keyframes dash {
from {
stroke-dashoffset: 500;
fill: black;
}
to {
stroke-dashoffset: 0;
fill: white;
}
}
</style>
</head>
<body style="background: black;">
<svg id="ps4" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="900px" viewBox="0 0 600 318" enable-background="new 0 0 600 318" xml:space="preserve">
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<!-- TEXT -->
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</svg>
</body>
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最佳答案
试试这个我修改了我在这里找到的代码http://codepen.io/paintbycode/pen/JDbcF希望这会有所帮助。
$(document).ready(function() {
//set the units for the svg paths
$(".path").css("stroke-dashoffset", "1000");
$(".path").css("stroke-dasharray", "1000");
//variable for the 'stroke-dashoffset' unit
var $dashOffset = $(".path").css("stroke-dashoffset");//.star
//on a scroll event - execute function
$(window).scroll(function () {
var top = $(window).scrollTop();
//calculate how far down the page the user is
var $percentageComplete = ((top/($("html").height()-$(window).height()))*100);
//convert dashoffset pixel value to interger
var $newUnit = parseInt($dashOffset, 10);
//convert percentage complete unit to an interger
// var $parsedPercentage = parseInt($percentageComplete, 10);
//get the value to be subtracted from the 'stroke-dashoffset'
var $offsetUnit = $percentageComplete * ($newUnit / 100);
//set the new value of the dashoffset to create the drawing effect
$(".path").css("stroke-dashoffset", $newUnit - $offsetUnit);
$(".path").css("fill-opacity", 0 + top * .001);
});
});
body {
color: white;
height: 2000px;
}
svg {
position: fixed;
left: 30%;
}
.path {
stroke-dashoffset: 1000;
stroke-dasharray: 1000;
}
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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Scroll</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
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<body style="background: black;">
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