Created
November 6, 2011 17:41
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Rotatable radar in HTML and CSS
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| html, body{ | |
| background: transparent; | |
| } | |
| ul,li{ | |
| margin:0; | |
| list-style:none; | |
| } | |
| li { | |
| width: 3px; | |
| height: 3px; | |
| background: #000; | |
| position: absolute; | |
| } | |
| #radar { | |
| position: absolute; | |
| width: 100px; | |
| height: 100px; | |
| left: 100px; | |
| top: 100px; | |
| -webkit-transform-origin: 0 0; | |
| -webkit-transform:scale(.7); | |
| } | |
| #radar-background{ | |
| width: 100%; | |
| height: 100%; | |
| background: rgba(100,100,244,0.3); | |
| border-radius:200px; | |
| position: relative; | |
| margin-left: -50px; | |
| margin-top: -50px; | |
| } | |
| #radar-indicator{ | |
| width: 2px; | |
| height: 50%; | |
| background: rgba(30,30,255,0.2); | |
| position: absolute; | |
| left: 0; | |
| top: -50%; | |
| } | |
| #radar-dots { | |
| width: 100%; | |
| height: 100%; | |
| position: absolute; | |
| left: 0; | |
| top: 0; | |
| -webkit-transform-origin: 0 0; | |
| } | |
| #template{ | |
| display:none; | |
| } |
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| <!DOCTYPE html> | |
| <html lang='en'> | |
| <head> | |
| <meta charset='utf-8'> | |
| <title>StreetView radar</title> | |
| <meta name='description' content=''> | |
| <meta name='author' content=''> | |
| <link rel="stylesheet" type="text/css" media="all" href="radar.css"> | |
| </head> | |
| <body> | |
| <div id='radar'> | |
| <div id='radar-background'></div> | |
| <div id='radar-indicator'></div> | |
| <ul id='radar-dots'> | |
| </ul> | |
| </div> | |
| <div id='template'> | |
| <li id='dot-template' class='dot'></li> | |
| </div> | |
| <script src="http://code.jquery.com/jquery-latest.min.js"></script> | |
| <script> | |
| function rotate(deg) { | |
| $("#radar-dots").css('-webkit-transform','rotate('+deg+'deg)'); | |
| } | |
| function add_dot(x, y) { | |
| var new_dot = $('#dot-template').clone(); | |
| $("#radar-dots").append(new_dot); | |
| new_dot.css({'left':x+'px', 'top':-y+'px'}); | |
| } | |
| //usage | |
| //add_dot(10,10); | |
| //add_dot(-30,100); | |
| // rotate(30); //deg | |
| </script> | |
| </body> | |
| </html> |
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