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jquery 3D球狀導航的文章分類
編輯:JQuery特效代碼     
前幾天寫了左邊這個3D球狀導航的文章分類,這裡對實現細節做個簡單記錄。

效果:
分類標題呈現3D球狀效果,點擊分類標題的時候,會彈出這個分類對應的推薦文章列表。
效果截圖:




HTML:
代碼如下:
<div id="mainList">
<div id="list">
<ul>
<li><a class="HTML" onclick="ClickLink(this)" href="#">HTML</a></li>
<li><a class="CSS" onclick="ClickLink(this)" href="#">CSS</a></li>
<li><a class="JS" onclick="ClickLink(this)" href="#">JavaScript</a></li>
<li><a class="AJAX" onclick="ClickLink(this)" href="#">Ajax</a></li>
<li><a class="ASPNET" onclick="ClickLink(this)" href="#">Asp.net</a></li>
<li><a class="CSHARP" onclick="ClickLink(this)" href="#">C#</a></li>
<li><a class="DEBUG" onclick="ClickLink(this)" href="#">Debugging</a></li>
<li><a class="PERF" onclick="ClickLink(this)" href="#">Performance</a></li>
<li><a class="ARCHITERT" onclick="ClickLink(this)" href="#">Architect</a></li>
</ul>
</div>

核心JS:動態生成3D球狀雲+彈出模式窗體-articlemap.js
代碼如下:
$(function() {
var element = $('#list a'); ;
var offset = 0;
var stepping = 0.02;
var list = $('#list');
var $list = $(list)
$list.mousemove(function(e) {
var topOfList = $list.eq(0).offset().top
var listHeight = $list.height()
stepping = (e.clientY - topOfList) / listHeight * 0.2 - 0.1;
});
for (var i = element.length - 1; i >= 0; i--) {
element[i].elemAngle = i * Math.PI * 2 / element.length;
}
setInterval(render, 50);
function render() {
for (var i = element.length - 1; i >= 0; i--) {
var angle = element[i].elemAngle + offset;
x = 120 + Math.sin(angle) * 30;
y = 45 + Math.cos(angle) * 40;
size = Math.round(15 - Math.sin(angle) * 15);
var elementCenter = $(element[i]).width() / 2;
var leftValue = (($list.width() / 2) * x / 100 - elementCenter) + "px"
$(element[i]).css("fontSize", size + "pt");
$(element[i]).css("opacity", size / 100);
$(element[i]).css("zIndex", size);
$(element[i]).css("left", leftValue);
$(element[i]).css("top", y + "%");
}
offset += stepping;
}
});
function ClickLink(item) {
var typName = $(item).text();
var links = null;
switch (typName) {
case "HTML":
links = TrainLinks(Links.HTML);
break;
case "CSS":
links = TrainLinks(Links.CSS);
break;
case "JavaScript":
links = TrainLinks(Links.JavaScript);
break;
case "Ajax":
links = TrainLinks(Links.Ajax);
break;
case "Asp.net":
links = TrainLinks(Links.Aspnet);
break;
case "C#":
links = TrainLinks(Links.CSharp);
break;
case "Debugging":
links = TrainLinks(Links.Debugging);
break;
case "Performance":
links = TrainLinks(Links.Performance);
break;
case "Architect":
links = TrainLinks(Links.Architect);
break;
}
CommonHelper.showNoBtnAlert(typName, links);
}
function TrainLinks(arr) {
var links = "這個可以有,暫時還沒有!";
if (arr.length > 0) {
links = '<div><ul>';
}
for (i = 0, j = arr.length; i < j; i++) {
links += '<li><a target="_blank" href="' + arr[i][0] + '">' + arr[i][1] + '</a></li>';
}
if (arr.length > 0) {
links += '</ul></div>';
}
return links;
}

輔助存儲推薦文章列表的JS(未來通過修改這個文件來維護推薦文章):
代碼如下:
var Links = {
HTML: [],
CSS: [["http://www.cnblogs.com/justinw/archive/2010/06/16/1758922.html", "制作50個超棒動畫效果教程"]],
JavaScript: [
["http://www.cnblogs.com/justinw/archive/2009/11/27/1611728.html", "[原創]AjaxControlToolkitTests自動測試框架完全解析之一:架構篇 "],
["http://www.cnblogs.com/justinw/archive/2009/11/30/1613391.html", "[原創]AjaxControlToolkitTests自動測試框架完全解析之二:實現篇(1) "],
["http://www.cnblogs.com/justinw/archive/2009/12/02/1615382.html", "[JavaScript] 使用document.createDocumentFragment優化性能 "],
],
Ajax: [],
Aspnet: [],
CSharp: [],
......
Performance: [
["http://www.cnblogs.com/justinw/archive/2009/11/26/1611397.html", "[推薦]前端性能分析工具:dynaTrace Ajax Edition"]
]
}

其他:
這裡還引用了jQuery UI的Dialog和一些自定義的CSS設置,具體參考實例即可。
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