【发布时间】:2015-12-16 10:01:05
【问题描述】:
我有长(超过 1500 像素)和沉重(超过 400kb)的图像,它描述了环境。我正在尝试从左到右制作动画,但动画并不流畅,运动相当粗略。我尝试了不同的方法,所有方法都在下面描述。那么你知道如何解决这个粗略的运动吗?
css3:
@keyframes animatedBackground {
0% { background-position: 0 0; }
100% { background-position: 15447px 0; }
}
@-moz-keyframes animatedBackground {
0% { background-position: 0 0; }
100% { background-position: 15447px 0; }
}
@-webkit-keyframes animatedBackground {
0% { background-position: 0 0; }
100% { background-position: 15447px 0; }
}
@-ms-keyframes animatedBackground {
0% { background-position: 0 0; }
100% { background-position: 15447px 0; }
}
@-o-keyframes animatedBackground {
0% { background-position: 0 0; }
100% { background-position: 15447px 0; }
}
.animation-wrapper {
width: 15447px;
height: 100%;
background-image: url('../pictures/animation-background.svg');
background-position: 0px 0px;
background-size: 15447px 800px;
animation: animatedBackground 100s linear infinite;
-moz-animation: animatedBackground 100s linear infinite;
-webkit-animation: animatedBackground 100s linear infinite;
-ms-animation: animatedBackground 100s linear infinite;
-o-animation: animatedBackground 100s linear infinite;
}
jQuery - 我将大的 SVG 图像分成 20 个小块,将这些小块放在
<ul>中并使用 jQuery 进行动画处理:
$(function(){
var scroller = $('#scroller div.innerScrollArea');
var scrollerContent = scroller.children('ul');
scrollerContent.children().clone().appendTo(scrollerContent);
var curX = 0;
scrollerContent.children().each(function(){
var $this = $(this);
$this.css('left', curX);
curX += $this.outerWidth(true);
});
var fullW = curX / 2;
var viewportW = scroller.width();
// Scrolling speed management
var controller = {curSpeed:0, fullSpeed:4};
var $controller = $(controller);
var tweenToNewSpeed = function(newSpeed, duration)
{
if (duration === undefined)
duration = 600;
$controller.stop(true).animate({curSpeed:newSpeed}, duration);
};
// Scrolling management; start the automatical scrolling
var doScroll = function()
{
var curX = scroller.scrollLeft();
var newX = curX + controller.curSpeed;
if (newX > fullW*2 - viewportW)
newX -= fullW;
scroller.scrollLeft(newX);
};
setInterval(doScroll, 20);
tweenToNewSpeed(controller.fullSpeed);
});
});
gsap:
var tl = new TimelineMax({repeat:-1});
var right = $(".background").width()*20;
$(".animation-wrapper").css("left",-left+"px");
function backgroundMoveInitiate()
{
tl.to(".animation-wrapper", 50, {right: -right, ease:Linear.easeNone});
}
backgroundMoveInitiate();
【问题讨论】:
-
你能准备一个jsFiddle吗?
标签: javascript jquery css svg gsap