author | eckhart.koppen@nokia.com |
Wed, 31 Mar 2010 11:06:36 +0300 | |
changeset 7 | f7bc934e204c |
permissions | -rw-r--r-- |
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function init(){ |
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clock(); |
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setInterval('clock()',1000); |
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} |
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function clock(){ |
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var now = new Date(); |
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var ctx = document.getElementById('tutorial').getContext('2d'); |
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ctx.save(); |
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ctx.clearRect(0,0,150,150); |
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ctx.translate(75,75); |
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ctx.scale(0.4,0.4); |
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ctx.rotate(-Math.PI/2); |
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ctx.strokeStyle = "black"; |
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ctx.fillStyle = "white"; |
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ctx.lineWidth = 8; |
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ctx.lineCap = "round"; |
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|
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// Hour marks |
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ctx.save(); |
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ctx.beginPath(); |
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for (i=0;i<12;i++){ |
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ctx.rotate(Math.PI/6); |
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ctx.moveTo(100,0); |
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ctx.lineTo(120,0); |
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} |
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ctx.stroke(); |
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ctx.restore(); |
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|
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// Minute marks |
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ctx.save(); |
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ctx.lineWidth = 5; |
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ctx.beginPath(); |
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for (i=0;i<60;i++){ |
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if (i%5!=0) { |
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ctx.moveTo(117,0); |
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ctx.lineTo(120,0); |
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} |
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ctx.rotate(Math.PI/30); |
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} |
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ctx.stroke(); |
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ctx.restore(); |
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|
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var sec = now.getSeconds(); |
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var min = now.getMinutes(); |
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var hr = now.getHours(); |
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hr = hr>=12 ? hr-12 : hr; |
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|
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ctx.fillStyle = "black"; |
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|
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// write Hours |
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ctx.save(); |
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ctx.rotate( hr*(Math.PI/6) + (Math.PI/360)*min + (Math.PI/21600)*sec ) |
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ctx.lineWidth = 14; |
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ctx.beginPath(); |
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ctx.moveTo(-20,0); |
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ctx.lineTo(80,0); |
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ctx.stroke(); |
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ctx.restore(); |
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|
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// write Minutes |
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ctx.save(); |
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ctx.rotate( (Math.PI/30)*min + (Math.PI/1800)*sec ) |
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ctx.lineWidth = 10; |
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ctx.beginPath(); |
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ctx.moveTo(-28,0); |
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ctx.lineTo(112,0); |
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ctx.stroke(); |
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ctx.restore(); |
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|
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// Write seconds |
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ctx.save(); |
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ctx.rotate(sec * Math.PI/30); |
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ctx.strokeStyle = "#D40000"; |
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ctx.fillStyle = "#D40000"; |
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ctx.lineWidth = 6; |
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ctx.beginPath(); |
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ctx.moveTo(-30,0); |
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ctx.lineTo(83,0); |
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ctx.stroke(); |
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ctx.beginPath(); |
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ctx.arc(0,0,10,0,Math.PI*2,true); |
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ctx.fill(); |
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ctx.beginPath(); |
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ctx.arc(95,0,10,0,Math.PI*2,true); |
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ctx.stroke(); |
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ctx.fillStyle = "#555"; |
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ctx.arc(0,0,3,0,Math.PI*2,true); |
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ctx.fill(); |
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ctx.restore(); |
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|
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ctx.beginPath(); |
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ctx.lineWidth = 14; |
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ctx.strokeStyle = '#325FA2'; |
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ctx.arc(0,0,142,0,Math.PI*2,true); |
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ctx.stroke(); |
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|
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ctx.restore(); |
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} |
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init(); |