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Use canvas to draw a superb clock and canvas to draw a superb clock

Source: Internet
Author: User
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Use canvas to draw a superb clock and canvas to draw a superb clock
This article mainly introduces how to use canvas to draw a superb clock and its code. It is very beautiful and we recommend it to you.

First:


The Code is as follows:
<! DOCTYPE html>
<Html>
<Head>
<Meta charset = "UTF-8">
<Title> canvas watch </title>
<Meta name = "Keywords" content = "">
<Meta name = "author" content = "@ my_programmer">
<Style type = "text/css">
Body {margin: 0 ;}
</Style>
</Head>
<Body onload = "run ()">
<Canvas id = "canvas" width = 400 height = 400 style = "border: 1px # ccc solid;"> if you see this text, your browser is weak! </Canvas>
<Script>
Window. onload = draw;
Function draw (){
Var canvas = document. getElementById ('canvas ');
Var context = canvas. getContext ('2d ');
Context. save (); // save
Context. translate (200,200 );
Var deg = 2 * Math. PI/12;
//////////////////////////////////////// ///// // Dial
Context. save ();
Context. beginPath ();
For (var I = 0; I <13; I ++ ){
Var x = Math. sin (I * deg );
Var y =-Math. cos (I * deg );
Context. lineTo (x * 150, y * 150 );
}
Var c = context. createRadialGradient (0,130 );
C. addColorStop (0, "# 22f ");
C. addColorStop (1, "# 0ef ")
Context. fillStyle = c;
Context. fill ();
Context. closePath ();
Context. restore ();
//////////////////////////////////////// /// // Number
Context. save ();
Context. beginPath ();
For (var I = 1; I <13; I ++ ){
Var x1 = Math. sin (I * deg );
Var y1 =-Math. cos (I * deg );
Context. fillStyle = "# fff ";
Context. font = "bold 20px Calibri ";
Context. textAlign = 'center ';
Context. textBaseline = 'middle ';
Context. fillText (I, x1 * 120, y1 * 120 );
}
Context. closePath ();
Context. restore ();
//////////////////////////////////////// //// // Large Scale
Context. save ();
Context. beginPath ();
For (var I = 0; I <12; I ++ ){
Var x2 = Math. sin (I * deg );
Var y2 =-Math. cos (I * deg );
Context. moveTo (x2 * 148, y2 * 148 );
Context. lineTo (x2 * 135, y2 * 135 );
}
Context. strokeStyle = '# fff ';
Context. lineWidth = 4;
Context. stroke ();
Context. closePath ();
Context. restore ();
//////////////////////////////////////// //// // Small Scale
Context. save ();
Var deg1 = 2 * Math. PI/60;
Context. beginPath ();
For (var I = 0; I <60; I ++ ){
Var x2 = Math. sin (I * deg1 );
Var y2 =-Math. cos (I * deg1 );
Context. moveTo (x2 * 146, y2 * 146 );
Context. lineTo (x2 * 140, y2 * 140 );
}
Context. strokeStyle = '# fff ';
Context. lineWidth = 2;
Context. stroke ();
Context. closePath ();
Context. restore ();
//////////////////////////////////////// /// // Text
Context. save ();
Context. strokeStyle = "# fff ";
Context. font = '34px sans-serif ';
Context. textAlign = 'center ';
Context. textBaseline = 'middle ';
Context. strokeText ('canvas ', 0, 65 );
Context. restore ();
//////////////////////////////////////// //// // New Date
Var time = new Date ();
Var h = (time. getHours () % 12) * 2 * Math. PI/12;
Var m = time. getMinutes () * 2 * Math. PI/60;
Var s = time. getSeconds () * 2 * Math. PI/60; </p> <p> ///////////////////////////////// //// // hour
Context. save ();
Context. rotate (h + m/12 + s/720 );
Context. beginPath ();
Context. moveTo (0, 6 );
Context. lineTo (0,-85 );
Context. strokeStyle = "# fff ";
Context. lineWidth = 6;
Context. stroke ();
Context. closePath ();
Context. restore ();
//////////////////////////////////////// ///// Sub-needle
Context. save ();
Context. rotate (m + s/60 );
Context. beginPath ();
Context. moveTo (0, 8 );
Context. lineTo (0,-105 );
Context. strokeStyle = "# fff ";
Context. lineWidth = 4;
Context. stroke ();
Context. closePath ();
Context. restore ();
//////////////////////////////////////// //// Seconds
Context. save ();
Context. rotate (s );
Context. beginPath ();
Context. moveTo (0, 10 );
Context. lineTo (0,-120 );
Context. strokeStyle = "# fff ";
Context. lineWidth = 2;
Context. stroke ();
Context. closePath ();
Context. restore ();
Context. restore (); //
SetTimeout (draw, 1000 ); /// // timer </p> <p >}</ p> </script>
</Body>
</Html>

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Related Keywords:
canvas draw transparent rectangle canvas draw circle canvas draw box javascript canvas draw canvas draw circle html5 canvas clock convert svg to canvas
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