3D现象的选择显示

脚本说明:
第一步：把如下代码加入<body>区域中
<SCRIPT language=javascript>
var i=new Array();m=Math;j=document;da=j.all;r=m.PI/180;u=window;op=0;g=this.location+"";
function c(f){t=0;if(da){if(f){t=j.body.offsetWidth/2}else{t=j.body.offsetHeight/2}}if(t<1){if(da){op=1}if(f){t=u.innerWidth/2}else{t=u.innerHeight/2}}return t}
function no(x,y){i[i.length]=new of(x,y);return (i.length-1)}
function npr(o,x,y,z){i[o].pr[(i[o].pr.length)]=new np(x,y,z)}
function np(x,y,z){this.x=this.x2=x*k;this.y=this.y2=y*k;this.z=this.z2=z*k;}
function of(x,y){this.x=x*k;this.y=y*k;this.pr=new Array()}
function h(u,e){b=""+m.round((u+1)*(999999/e));return "000000".substr(b.length)+b;}
function dp(o,omsg,s){f=ppr(o);for(pID=0;pID<i[o].pr.length;pID++){p=i[o].pr[pID];msg=s==1?'<font size="+5" color="#'+h(pID,i[o].pr.length)+'">'+omsg:omsg;if(da){j.write('<div id="id'+(f+pID)+'" style="position: absolute;">'+msg+'</div>')}else{j.write("<layer top=0 left=0>"+msg+"</layer>")}}}
function rt(o,v1,v2,v3){rtf(o,v1,v2,v3);f=ppr(o);for(pID=0;pID<i[o].pr.length;pID++){up(o,pID,f+pID)}}
function rtf(o,v1,v2,v3){c12=(c1=m.cos(v1*r))*(c2=m.cos(v2*r));c23=c2*(c3=m.cos(v3*r));s1_c3=(s1=m.sin(v1*r))*c3;c2_s3=c2*(s3=m.sin(v3*r));s1_c2=s1*c2;s12_c3=(s13=s1*s3)*c3;c1_s23=(c1_s3=c1*s3)*(s2=m.sin(v2*r));c13_s2=(c13=c1*c3)*s2;s123=s13*s2;for(pID=0;pID<i[o].pr.length;pID++){p=i[o].pr[pID];x2=p.x*c12+p.z*s1_c2-p.y*s2;y2=p.y*c23+p.x*c13_s2+p.z*s12_c3+p.z*c1_s3-p.x*s13;z2=p.z*c13-p.x*s1_c3-p.y*c2_s3-p.x*c1_s23-p.z*s123;p.x=x2;p.y=y2;p.z=z2;}}
function up(o,pID,lID){p=i[o].pr[pID];b=p.z==0?-1:p.z/2;l=i[o].x+(b*p.x/(p.z-b));t=i[o].y+(b*p.y/(p.z-b));if(da){d=da["id"+lID].style;d.pixelLeft=l;d.pixelTop=t;}else{d=j.layers[lID];d.left=l;d.top=t}}
function ppr(o){b=0;for(f=0;f<o;f++){b+=i[f].pr.length}return b}
function mv(o,x,y){i[o].x=x;i[o].y=y}
function ki(arg){if(da){ex=event.clientX;ey=event.clientY}else{ex=arg.pageX;ey=arg.pageY}for(x=0;x<i.length;x++){a[x].x=(ex-i[x].x)/(c(1)*2)*rx;a[x].y=(ey-i[x].y)/(c(0)*2)*ry;}}
function ro(){for(x=0;x<i.length;x++){rt(x,a[x].x,a[x].y,a[x].z)}setTimeout("ro()",0)}
function re(){for(x=0;x<i.length;x++){mv(x,(c(1)*2/(i.length+1))*(x+1),c(0))}if(mc==1){if(op){this.location=g.substr(0,g.lastIndexOf("&"))}else{if(da){j.body.onmousemove=ki}else{u.captureEvents(Event.MOUSEMOVE);u.onmousemove=ki}}}ro()}
function q(){for(x=0;x<i.length;x++){a[x]=mc==1?new np(0,0,0):new np(rx/k,rz/k,ry/k);dp(x,txt,cl);}}
cl=0;o_b=0;o_p=0;o_c=0;mc=0;b=g.substr(g.indexOf("?")+1);if(g==b){j.write('<center><table border=0><form method="get"><tr><td colspan=2><dd><font size=5>3d.js</font></td></tr><tr><td>方向上的数值:</td></tr><tr><td><dd>x-axis</td><td><input type="text" value="2" name="rx"></td></tr><tr><td><dd>y-axis</td><td><input type="text" value="2" name="ry"></td></tr><tr><td><dd>z-axis</td><td><input type="text" value="2" name="rz"></td></tr><tr><td>size</td><td><input type="text" value="4" name="y"></td></tr><tr><td>scaling</td><td><input type="text" value="5" name="k"></td></tr><tr><td>文本样式:</td><td><input type="text" value="." name="txt"></td></tr><tr><td>是否选择颜色：</td><td><input type="checkbox" checked name="cl"></td></tr><tr><td>设置数量:</td></tr><tr><td><dd>个数：</td><td><input type="text" value="20" name="rd"></td></tr><tr><td><dd>层次：</td><td><input type="text" value="17" name="z"></td></tr><tr><tr><td>物件：</td></tr><tr><td><dd>coil</td><td><input type="checkbox" name="o_c"></tr><tr><td><dd>box</td><td><input type="checkbox" name="o_b" checked></td></tr><tr><td><dd>pyramid</td><td><input type="checkbox" name="o_p"></td></tr><tr><td>是否鼠标控制:</td><td><input type="checkbox" name="mc" checked></td></tr><tr><td colspan=2 align="right"><input type="submit" value="draw 3d"></td></tr></form></td></tr></center></table>')}else{b+="&";for(;b.length>0;){p=b.substr(0,b.indexOf("&"));f=p.substr(0,p.indexOf("="));v=p.substr(f.length+1);switch(f){case "txt":txt=v;break;case "o_c":o_c=1;break;case "o_p":o_p=1;break;case "o_b":o_b=1;break;case "cl":cl=1;break;case "mc":mc=1;break;default:eval(f+"="+v);}b=b.substr(b.indexOf("&")+1);}
if(o_c==1){b=no(0,0);for(x=0;x<360*y;x+=z){npr(b,m.cos(x*r)*rd,m.sin(x*r)*rd,(360*y/2-x)/(y*5))}}
if(o_b==1){z=no(0,0);w=y+1;f=w*w+1;b=f/2;for(x=0;x<f;x+=w){npr(z,-b+x,-b,b);npr(z,-b+x,-b,-b);npr(z,-b+x,b,b);npr(z,-b+x,b,-b);npr(z,-b,-b+x,b);npr(z,-b,-b+x,-b);npr(z,b,-b+x,b);npr(z,b,-b+x,-b);npr(z,-b,-b,-b+x);npr(z,-b,b,-b+x);npr(z,b,-b,-b+x);npr(z,b,b,-b+x)}}
if(o_p==1){z=no(0,0);w=y+2;f=w*w+1;b=f/2;for(x=0;x<(f/2);x+=w){npr(z,x,x,-b+x);npr(z,-x,x,-b+x);npr(z,0,-x,-b+x)}for(x=0;x<f;x+=w){npr(z,-b+x,b,1);npr(z,-b+x/2,b-x,1);npr(z,b-x/2,b-x,1)}}var a=new Array();q()}
</SCRIPT>

第二步：把<body>中的内容改为：
<body   onload=javascript:re()>