JS文字球状放大效果

来源：互联网发布：网络中立性利弊编辑：程序博客网时间：2024/05/01 17:44
<html><head><title>lanrentuku.com</title><meta http-equiv="imagetoolbar" content="no"><style type="text/css">body {cursor:crosshair;margin:0; padding:0; position:absolute; overflow:hidden; background:#000; left:0; top:0; width:100%; height:100%;}span {position:absolute;font-family: verdana; font-weight: bold;}</style><script type="text/javascript"><!--T    = "What is  real?How do you define real?   Ifyou're talkingabout what youcan feel  whatyou can  smellwhat  you  cantaste and  seethen   real issimply   electrical  signalsinterpreted byyour brain!        ";I    = 0;o    = new Array();xm   = -1000;ym   = -1000;///////////////rad  = 80;dim  = 200;///////////////W    = 0;H    = 0;NX   = 14;NY   = 14;var nx;var ny;document.onmousemove = function(e){if (window.event) e = window.event;xm = (e.x || e.clientX) - (nx  * .5) + dim * .5;ym = (e.y || e.clientY) - (ny * .5) + dim * .5;}function resize() {nx = document.body.offsetWidth;ny = document.body.offsetHeight;}onresize = resize;function CObj(N,i,j,c){this.obj = document.createElement("span");this.obj.innerHTML = c;DOOT.appendChild(this.obj);this.N    = N;this.To   = 16;this.x0   = i*2*W;this.y0   = j*2*H;this.anim = true;this.mainloop = function(){with (this) { dx   = xm - x0;dy   = ym - y0;dist = Math.sqrt(dx * dx + dy * dy);if (dist < rad) {anim = true;M    = Math.cos(.5 * Math.PI * Math.abs(dist / rad));c    = Math.round(84 + M * 171);with(obj.style){left     = x0 - dx * M;top      = y0 - dy * M;zIndex   = Math.round(100 + M);fontSize = 8 + M * W * 2;color    = "RGB("+c+","+c+","+c+")";}} else {if(anim){with(obj.style){left     = x0;top      = y0;zIndex   = 0;fontSize = 8;color    = "RGB(88,88,88)";}anim = false;}}}}}function run(){for(i in o)o[i].mainloop();setTimeout(run,16);}onload = function (){DOOT = document.getElementById("doot");with(DOOT.style){left = -dim/2;top  = -dim/2;width = dim;height = dim;}resize();W = (dim  / NX) / 2;H = (dim / NY) / 2;K = 0;for(var j=0;j<NY;j++){for(var i=0;i<NX;i++){c=T.charAt((I++)%T.length).toUpperCase();if(c==" ")c="·";o[K] = new CObj(K++,i,j,c);}}run();}//--></script></head><body><span style="position:absolute;left:50%;top:50%"><span id="doot"></span></span></body></html>
0 0