我的部落格--群星閃爍地球旋轉動畫特效
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<meta name="author" content="Ken Collins">
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C49.611,3.181 51.963,3.873 55.008,4.220 C55.908,4.290 56.807,4.358 57.570,4.358 C59.367,4.358 60.544,4.151 60.613,3.735 C60.683,3.113 58.260,2.352 55.286,2.074 C54.316,1.935 53.348,1.935 52.519,1.935 C50.856,1.935 49.681,2.145 49.681,2.559 L49.681,2.559 Z
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C7.126,37.230 6.987,35.846 6.987,35.224 C6.987,33.771 7.540,31.694 8.579,29.549 L8.579,29.549 Z M23.940,19.307 C24.010,20 24.425,20.344 25.047,20.344 C26.570,20.344 28.369,18.822 28.369,17.369 C28.369,16.677 27.816,16.331 27.262,16.331 C25.739,16.331 23.940,17.852
23.940,19.307 L23.940,19.307 Z M38.886,29.341 C38.055,30.170 37.641,31.141 37.641,32.040 C37.641,32.247 37.641,32.525 37.709,32.732 L37.433,32.525 C36.948,32.108 36.741,31.487 36.741,30.863 C36.741,29.963 37.155,28.925 37.987,28.096 C38.818,27.196 39.854,26.779
40.754,26.779 C41.378,26.779 42,26.989 42.416,27.403 C42.692,27.681 42.831,28.025 42.970,28.371 C42.623,28.164 42.138,28.025 41.653,28.025 C40.754,28.025 39.717,28.442 38.886,29.341 L38.886,29.341 Z M30.168,6.435 C33.282,5.051 36.119,4.151 37.572,4.151 C37.918,4.151
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C19.166,30.448 19.166,30.726 19.235,31.002 C18.820,30.655 18.542,29.963 18.542,29.202 C18.542,27.818 19.512,26.019 20.895,26.019 L20.895,26.019 Z M2.835,58.198 C2.905,59.168 3.113,60.068 3.252,60.829 C2.835,60.136 2.420,58.337 2.143,56.192 C2.006,55.017 1.935,53.908
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C56.878,2.698 55.079,2.489 53.348,2.489 C52.034,2.489 51.134,2.698 51.064,2.974 C51.064,3.113 51.134,3.181 51.341,3.320 C50.649,3.113 50.235,2.835 50.235,2.628 C50.303,2.352 51.202,2.145 52.519,2.145 C54.594,2.145 57.570,2.489 58.538,3.181 L58.538,3.181 Z
M25.047,19.098 C25.047,19.583 25.324,19.861 25.670,20 C25.532,20.068 25.324,20.068 25.185,20.068 C24.632,20.068 24.286,19.583 24.286,19.168 C24.286,18.615 24.700,17.852 25.393,17.299 C25.946,16.816 26.638,16.538 27.192,16.538 C27.331,16.538 27.399,16.608 27.470,16.608
C26.292,17.023 25.047,17.923 25.047,19.098 L25.047,19.098 Z"></path>
<script type="text/ecmascript"><![CDATA[
var xmlns = "http://www.w3.org/2000/svg",
xlinkns = "http://www.w3.org/1999/xlink";
var width = 300,
height = 700;
var stars = document.getElementById("stars"),
bursts = document.getElementById("bursts"),
steelers = document.getElementById("steelers");
function randomBase(min, max) { return Math.random() * (max - min) + min; }
function randomPos(max) { return Math.floor(randomBase(-50,max+50)); }
function randomAnimationDelay(max) { return Math.floor(randomBase(1,20)); }
function randomScale(min, max) { return parseFloat(randomBase(min, max).toFixed(2)); }
function randomScaleNamed(name) {
var scale;
switch(name) {
case 'star': scale = randomScale(0.3, 0.8); break;
case 'burst': scale = randomScale(0.4, 0.9); break;
case 'steeler': scale = randomScale(1.1, 2.0); break;
default: scale = 1.0; }
return scale;
}
function addElement(name) {
var p = eval(name + 's');
g = document.createElementNS(xmlns, "g"),
use = document.createElementNS(xmlns, "use"),
gt = 'translate(' + randomPos(width) + ',' + randomPos(height) + ') ' +
'scale(' + randomScaleNamed(name) + ')';
uc = name + ' ad-' + randomAnimationDelay();
use.setAttributeNS(null, "class", uc);
use.setAttributeNS(xlinkns, "xlink:href", "#" + name);
g.setAttributeNS(null, "transform", gt);
g.appendChild(use);
p.appendChild(g);
}
function addElements(name, count) {
while (count -= 1) { addElement(name); }
}
function init() {
addElements('steeler', 15);
addElements('burst', 15);
addElements('star', 50);
}
init();
]]></script>
</svg>
2、使用方法：
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