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Server : Apache/2.4.18 (Ubuntu) System : Linux canvaswebdesign 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC 2015 x86_64 User : oppastar ( 1041) PHP Version : 7.0.33-0ubuntu0.16.04.15 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, Directory : /proc/self/root/usr/share/doc/libjs-excanvas/examples/testcases/ |
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<!DOCTYPE html>
<html>
<head>
<title>Stroke Scale</title>
<style>
body {
text-align: center
}
canvas {
background: #eee;
}
</style>
<!--[if IE]><script type="text/javascript" src="../excanvas.js"></script><![endif]-->
<script>
// draw a star
function drawStar (ctx, r){
ctx.save();
ctx.beginPath();
ctx.rotate(-Math.PI / 10);
ctx.scale(r, r);
ctx.moveTo(1, 0);
ctx.lineWidth = ctx.lineWidth / r;
for (var i = 0; i < 9; i++) {
ctx.rotate(Math.PI / 5);
if (i % 2 == 0) {
ctx.lineTo(0.3819653016466596, 0);
} else {
ctx.lineTo(1, 0);
}
}
ctx.closePath();
ctx.fill();
ctx.stroke();
ctx.restore();
}
window.onload = function() {
var ctx = document.getElementById('c').getContext('2d');
ctx.save();
ctx.translate(100.5, 100);
ctx.lineWidth = 1;
ctx.beginPath();
ctx.moveTo(0, 0);
ctx.lineTo(50, 0);
ctx.scale(1, 2);
ctx.rotate(Math.PI / 2);
ctx.lineTo(25, -50)
ctx.rotate(Math.PI / 2);
ctx.lineTo(0, -25)
ctx.scale(1, 2);
ctx.closePath();
ctx.stroke();
ctx.restore();
ctx.translate(50, 50);
ctx.fillStyle = 'white';
ctx.strokeStyle = 'blue';
drawStar(ctx, 20);
};
</script>
</head>
<body>
<canvas id=c width=500 height=500></canvas>
</body>
</html>