- <style>
- #box{
- height: 300px;
- width: 300px;
- background: hsl(20,40%,90%);
- background-image:linear-gradient(90deg,#fb3 11px,transparent 0),
- linear-gradient(90deg,#ab4 23px,transparent 0),
- linear-gradient(90deg,#655 41px,transparent 0);
- background-size: 41px 100%,61px 100%,83px 100%;
- }
- </style>
- <div id="box"></div>
- <script>
- var oSvg = createTag('svg',{'version':'1.1','xmls':'http://www.w3.org/2000/svg',height:'100%',width:'100%'});
- var oBox = document.getElementById('box');
- var W = parseInt(getComputedStyle(oBox).width);
- var H = parseInt(getComputedStyle(oBox).height);
- var appearance = {
- 'dis':H/3,
- 'r0':H/8,'r':H/10,
- 'x0':W/2,'y0':H/2,
- 'fontSize':H/24,
- 'bg0':'rgba(255,255,255,.6)','bg':'rgba(255,255,255,.6)',
- 'borderColor0':'rgba(0,0,0,.3)','bordercolor':'rgba(0,0,0,.3)',
- 'strokeWidth0':4,'strokeWidth1':2,'strokeWidth2':4,
- 'lineColor':'rgba(0,0,0,0.3)','lineWidth':1,'lineDashed':'5,5',
- 'backX':W/20,'backY':H/20,'backFill':'rgba(0,0,0,.3)','backScale':'0.4',
- }
- var data = {
- text:'前端开发',
- children:[
- {text:'PS',url:'http://www.cnblogs.com/xiaohuochai/p/5657404.html'},
- {text:'HTML',url:'http://www.cnblogs.com/xiaohuochai/p/5203223.html'},
- {text:'CSS',url:'http://www.cnblogs.com/xiaohuochai/p/5249139.html'},
- {text:'JS',url:'http://www.cnblogs.com/xiaohuochai/p/5613593.html'},
- {text:'ES6',url:'http://www.cnblogs.com/xiaohuochai/p/7233392.html'},
- {text:'HTTP',url:'http://www.cnblogs.com/xiaohuochai/p/6392010.html'},
- {text:'前端工具',url:'http://www.cnblogs.com/xiaohuochai/p/6666415.html'},
- {text:'前端框架',url:'#',children:[
- {text:'Bootstrap',url:'http://www.cnblogs.com/xiaohuochai/p/7097376.html'},
- {text:'jQuery',url:'http://www.cnblogs.com/xiaohuochai/p/6489658.html'},
- {text:'Vue',url:'http://www.cnblogs.com/xiaohuochai/p/7356084.html'},
- ]},
- {text:'后端相关',url:'#',children:[
- {text:'NodeJS',url:'http://www.cnblogs.com/xiaohuochai/p/6940560.html'},
- {text:'MongoDB',url:'http://www.cnblogs.com/xiaohuochai/p/7372243.html'},
- {text:'PHP',url:'http://www.cnblogs.com/xiaohuochai/p/6038637.html'},
- {text:'MySQL',url:'http://www.cnblogs.com/xiaohuochai/p/6081482.html'},
- ]},
- ],
- }
- function init(){
- addChildenTags(data.children);
- addCenterTag(data);
- oBox.appendChild(oSvg);
- }
- init();
- document.onmousedown = function(e){
- e = e || event;
- e.preventDefault();
- }
- function createTag(tag,objAttr){
- var oTag = document.createElementNS('http://www.w3.org/2000/svg',tag);
- for(var attr in objAttr){
- if(attr == 'xlink:href'){
- oTag.setAttributeNS("http://www.w3.org/1999/xlink",attr,objAttr[attr]);
- }else{
- oTag.setAttribute(attr,objAttr[attr]);
- }
- }
- return oTag;
- }
- function addCenterTag(obj){
- var oG = createTag('g',{'style':'cursor:pointer'});
- var oCircle = createTag('circle',{'cx':appearance.x0,'cy':appearance.y0,'r':appearance.r0,'fill':appearance.bg0,'stroke':appearance.borderColor0,'stroke-width':appearance.strokeWidth0});
- var oText = createTag('text',{'x':appearance.x0,'y':appearance.y0,'font-size':appearance.fontSize,'text-anchor':'middle','dominant-baseline':'middle','stroke-width':appearance.strokeWidth0});
- oText.innerHTML = obj.text;
- oG.appendChild(oCircle);
- oG.appendChild(oText);
- oSvg.appendChild(oG);
- oG.onclick = function(e){
- e = e || event;
- oSvg.innerHTML = '';
- if(obj.url == '#'){
- addChildenTags(obj.children);
- addBackTag();
- }else{
- addChildenTags(data.children);
- }
- addCenterTag(obj);
- }
- }
- function addBackTag(){
- var oG = createTag('g',{'style':'cursor:pointer'});
- var oClipPath = createTag('clipPath',{'id':'clipPath1'});
- var oPolygon = createTag('polygon',{'points':'40 0, 40 20, 100 20, 100 80, 40 80, 40 100, 0 50'});
- var oRect = createTag('rect',{'x':0,'y':0,'width':100,'height':100,'fill':appearance.backFill,'clip-path':'url(#clipPath1)','transform':'scale(' + appearance.backScale + ') translate(' + appearance.backX + ','+appearance.backY + ')',});
- oClipPath.appendChild(oPolygon);
- oG.appendChild(oClipPath);
- oG.appendChild(oRect);
- oSvg.appendChild(oG);
- oG.onclick = function(){
- oSvg.innerHTML = '';
- addChildenTags(data.children);
- addCenterTag(data);
- }
- }
- function randomArr(arr){
- return arr.sort(function(){return Math.random() - 0.5});
- }
- function addChildenTags(children){
- var length = children.length;
- var deg = (360/length)*(2*Math.PI)/360;
- var posArr = [];
- var randomRotate = Math.floor(360*Math.random());
- for(var i = 0; i < children.length;i++){
- var cos = Math.cos(deg*i - randomRotate);
- var sin = Math.sin(deg*i - randomRotate);
- var x = appearance.x0 + appearance.dis*cos;
- var y = appearance.y0 + appearance.dis*sin;
- posArr[i] = {index:i,cos:cos,sin:sin,x:x,y:y};
- }
- randomArr(posArr);
- for(var i = 0; i < children.length;i++){
- var oA = createTag('a',{'xlink:href':children[i].url,'target':'_black'});
- oA.obj = children[i];
- oA.index = posArr[i].index;
- var oG = createTag('g',{'style':'cursor:pointer'});
- var oLine = createTag('line',{'x1':posArr[i].x-appearance.r*posArr[i].cos,y1:posArr[i].y-appearance.r*posArr[i].sin,x2:appearance.x0+appearance.r0*posArr[i].cos,y2:appearance.y0+appearance.r0*posArr[i].sin,'stroke':appearance.lineColor,'stroke-width':appearance.lineWidth,'stroke-dasharray':appearance.lineDashed,'style':'transition:.5s'});
- var oLineHelper = createTag('line',{'x1':posArr[i].x-appearance.r*posArr[i].cos,y1:posArr[i].y-appearance.r*posArr[i].sin,x2:appearance.x0+appearance.r0*posArr[i].cos,y2:appearance.y0+appearance.r0*posArr[i].sin,'stroke':'transparent','stroke-width':10});
- if(oA.obj.url === '#'){
- var oCircle = createTag('circle',{'cx':posArr[i].x,'cy':posArr[i].y,'r':appearance.r,'fill':appearance.bg,'stroke':appearance.bordercolor,'stroke-width':appearance.strokeWidth2,'class':'frostedglass'});
- }else{
- var oCircle = createTag('circle',{'cx':posArr[i].x,'cy':posArr[i].y,'r':appearance.r,'fill':appearance.bg,'stroke':appearance.bordercolor,'stroke-width':appearance.strokeWidth1,'class':'frostedglass'});
- }
- var oText = createTag('text',{'x':posArr[i].x,'y':posArr[i].y,'font-size':appearance.fontSize,'text-anchor':'middle','dominant-baseline':'middle','stroke-width':appearance.strokeWidth1,fill:appearance.color});
- oText.innerHTML = children[i].text;
- oG.appendChild(oLine);
- oG.appendChild(oLineHelper);
- oG.appendChild(oCircle);
- oG.appendChild(oText);
- oA.appendChild(oG);
- oSvg.appendChild(oA);
- oA.onmouseenter = function(){
- elasticMove(this,appearance.r*1.2);
- var line = this.getElementsByTagName('line')[0];
- line.removeAttribute('stroke-dasharray');
- line.setAttribute('stroke-width',appearance.lineWidth*3);
- line.setAttribute('x1',appearance.x0+(appearance.dis - appearance.r0)*Math.cos(deg*this.index - randomRotate));
- line.setAttribute('y1',appearance.y0+(appearance.dis - appearance.r0)*Math.sin(deg*this.index - randomRotate));
- }
- oA.onmouseleave = function(){
- elasticMove(this,appearance.r);
- var line = this.getElementsByTagName('line')[0];
- line.setAttribute('stroke-width',appearance.lineWidth);
- line.setAttribute('stroke-dasharray',appearance.lineDashed);
- line.setAttribute('x1',appearance.x0+(appearance.dis - appearance.r)*Math.cos(deg*this.index - randomRotate));
- line.setAttribute('y1',appearance.y0+(appearance.dis - appearance.r)*Math.sin(deg*this.index - randomRotate));
- }
- oA.onclick = function(e){
- e = e || event;
- if(this.obj.url === '#'){
- e.preventDefault();
- oSvg.innerHTML = '';
- addCenterTag(this.obj);
- addChildenTags(this.obj.children);
- addBackTag();
- }
- }
- }
- }
- function elasticMove(obj,str){
- var circle = obj.getElementsByTagName('circle')[0];
- var r0 = circle.getAttribute('r');
- var r = Number(str);
- //声明步长值
- var step = 0;
- //声明弹性距离
- var len = r - r0;
- //声明弹性系数
- var k = 0.7;
- //声明损耗系数
- var z= 0.7;
- //声明当前值
- var cur = r0;
- clearInterval(circle.timer);
- circle.timer = setInterval(function(){
- //获取当前值cur
- cur = circle.getAttribute('r');
- //更新弹性距离
- len = r - cur;
- //弹力影响
- step += len*k;
- //阻力影响
- step = step*z;
- //赋值
- circle.setAttribute('r',Number(cur) + step);
- //当元素的步长值接近于0,并且弹性距离接近于0时,停止定时器
- if(Math.round(step) == 0 && Math.round(len) == 0){
- circle.setAttribute('r',r);
- clearInterval(circle.timer);
- }
- },30);
- }
- </script>
来源: http://www.cnblogs.com/xiaohuochai/p/7478595.html