3D标签云/滚动词条
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3D标签云/滚动词条
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vue：
<!DOCTYPE html> <html> <head><title>svg3D標簽云</title><script src="https://cdn.bootcss.com/vue/2.2.0/vue.min.js"></script> </head> <body> <div id='app' ><svg :width='width' :height='height' @mousemove='listener($event)'><a :href="tag.href" v-for='tag in tags'><text :x='tag.x' :y='tag.y' :font-size='20 * (600/(600-tag.z))' :fill-opacity='((400+tag.z)/600)'>{{tag.text}}</text></a></svg> </div> <script>var app = new Vue({el: '#app',data: {width:700,height:700,tagsNum:20,RADIUS:200,speedX:Math.PI/360,speedY:Math.PI/360,tags: [],colors:[],},computed:{CX(){return this.width/2;},CY(){return this.height/2;}},created(){this.changeColors();//初始化標簽位置let tags=[];for(let i = 0; i < this.tagsNum; i++){let tag = {};let k = -1 + (2 * (i + 1) - 1) / this.tagsNum;let a = Math.acos(k);let b = a * Math.sqrt(this.tagsNum * Math.PI)tag.text = i + 'tag';tag.x = this.CX + this.RADIUS * Math.sin(a) * Math.cos(b);tag.y = this.CY + this.RADIUS * Math.sin(a) * Math.sin(b);tag.z = this.RADIUS * Math.cos(a);tag.href = 'https://imgss.github.io'tags.push(tag)}this.tags = tags;},mounted(){//使球開始旋轉(zhuǎn)setInterval(()=>{this.rotateX(this.speedX);this.rotateY(this.speedY);}, 17)},methods:{rotateX(speedX){var cos = Math.cos(speedX);var sin = Math.sin(speedX);for(let tag of this.tags){var y1 = (tag.y- this.CY) * cos - tag.z * sin + this.CY;var z1 = tag.z * cos + (tag.y- this.CY) * sin;tag.y = y1;tag.z = z1;}},rotateY(speedY){var cos = Math.cos(speedY);var sin = Math.sin(speedY);for(let tag of this.tags){var x1 = (tag.x - this.CX) * cos - tag.z * sin + this.CX;var z1 = tag.z * cos + (tag.x - this.CX) * sin;tag.x = x1;tag.z = z1;}},listener(event){//響應(yīng)鼠標移動var x = event.clientX - this.CX;var y = event.clientY - this.CY;this.speedX = x*0.0001>0 ? Math.min(this.RADIUS*0.00002, x*0.0001) : Math.max(-this.RADIUS*0.00002, x*0.0001);this.speedY = y*0.0001>0 ? Math.min(this.RADIUS*0.00002, y*0.0001) : Math.max(-this.RADIUS*0.00002, y*0.0001);},changeColors(){for(var i = 0;i<30;i++){var r = Math.floor(Math.random() * 256);var g = Math.floor(Math.random() * 256);var b = Math.floor(Math.random() * 256);this.colors[i] = "rgb(" + r + ',' + g + ',' + b + ")";}},}}) </script> </body> </html>no vue：
<!DOCTYPE html> <html> <head><title>svg3D標簽云</title> </head> <body> <svg width='700' height='700'><a href="https://www.baidu.com"><text x='10' y='12'>1222</text></a><text x='100' y='120'>weed</text><text x='120' y='152'>sdcc</text><text x='160' y='222'>dfdf</text><text x='60' y='92'>vbbb</text><text x='160' y='300'>evvv</text><text x='290' y='400'>hhhh</text><text x='633' y='300'>wrgg</text><text x='400' y='500'>ohhh</text><text x='320' y='400'>qvbn</text><text x='480' y='200'>rvbj</text><text x='303' y='120'>eghj</text><text x='100' y='120'>weed</text><text x='120' y='152'>sdcc</text><text x='160' y='222'>dfdf</text><text x='60' y='92'>vbbb</text><text x='160' y='300'>evvv</text><text x='290' y='400'>hhhh</text><text x='633' y='300'>wrgg</text><text x='400' y='500'>ohhh</text><text x='320' y='400'>qvbn</text><text x='480' y='200'>rvbj</text><text x='303' y='120'>eghj</text> </svg> <script>var paper = document.querySelector("svg");//svgtags = document.querySelectorAll('svg text');RADIUS =200,FONTSIZE = RADIUS*0.1,fallLength = 600,//焦距tagArr=[],angleX = Math.PI/300,angleY = Math.PI/300,CX = paper.getAttribute('width')/2,//球心坐標CY = paper.getAttribute('height')/2;//球心坐標function Tag(ele , x , y , z){this.ele = ele;this.x = x;this.y = y;this.z = z;}function init(){var len = tags.lengthfor(var i=0;i<len;i++){var a , b;var k = -1+(2*(i+1)-1)/len;var a = Math.acos(k);var b = a*Math.sqrt(len*Math.PI);// var a = Math.random()*2*Math.PI;// var b = Math.random()*2*Math.PI;var x =CX + RADIUS * Math.sin(a) * Math.cos(b);var y =CY + RADIUS * Math.sin(a) * Math.sin(b);var z = RADIUS * Math.cos(a);var t = new Tag(tags[i] , x , y , z);tags[i].setAttribute('x',x);tags[i].setAttribute('y',y);tags[i].setAttribute('font-size', FONTSIZE * (fallLength/(fallLength-this.z)));tags[i].setAttribute('fill', "rgb("+parseInt(Math.random()*255)+","+parseInt(Math.random()*255)+","+parseInt(Math.random()*255)+")")tagArr.push(t);}}Array.prototype.forEach = function(callback){for(var i=0;i<this.length;i++){callback.call(this[i]);}}function animate(){setInterval(function(){// angleY += Math.PI/300;// angleY = angleX>Math.PI? 0 : angleXrotateX();rotateY();} , 17);}function rotateX(){var cos = Math.cos(angleX);var sin = Math.sin(angleX);tagArr.forEach(function(){var y1 = (this.y-CY) * cos - this.z * sin +CY;var z1 = this.z * cos + (this.y-CY) * sin;this.y = y1;this.z = z1;this.ele.setAttribute('y',this.y)this.ele.setAttribute('font-size', FONTSIZE * (fallLength/(fallLength-this.z)));})}function rotateY(){var cos = Math.cos(angleY);var sin = Math.sin(angleY);tagArr.forEach(function(){var x1 = (this.x-CX) * cos - this.z * sin +CX;var z1 = this.z * cos + (this.x-CX) * sin;this.x = x1;this.z = z1;this.ele.setAttribute('x',this.x)this.ele.setAttribute('font-size', FONTSIZE * (fallLength/(fallLength-this.z)));})}paper.addEventListener("mousemove" , function(event){var x = event.clientX - CX;var y = event.clientY - CY;// angleY = -x* (Math.sqrt(Math.pow(x , 2) + Math.pow(y , 2)) > RADIUS/4 ? 0.0002 : 0.0001);// angleX = -y* (Math.sqrt(Math.pow(x , 2) + Math.pow(y , 2)) > RADIUS/4 ? 0.0002 : 0.0001);angleY = x*0.0001>0 ? Math.min(RADIUS*0.00002,x*0.0001) : Math.max(-RADIUS*0.00002,x*0.0001);angleX = y*0.0001>0 ? Math.min(RADIUS*0.00002,y*0.0001) : Math.max(-RADIUS*0.00002,y*0.0001);});init();animate();</script> </body> </html>canvas：
https://github.com/goat1000/TagCanvas原理:
https://www.cnblogs.com/axes/p/3501424.html參考:
https://github.com/imgss/imgss.github.io/tree/master/demo/svg總結(jié)
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