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HTML

Posted by Björn Norén
Björn Norén
9,569 Points

Multiple Rotating Objects witg Fixed Positions || Canvas

Hello there, I have created this rotating object (black) and I wish to have one object more that rotates (orange). My problem is that the Orange extends the black instead of having it's own center. It should look like two clocks next to each others.

Anyone who knows how to fix this? I've tried translate(), save(), restore(), etc. Thanks!

Here's my code so far: 

<!DOCTYPE html>
<html>
<head>
<style type="text/css">
    body {
        margin: 40px; background:#666;
    }
    #my_canvas {
        background:#fff; border:#000 1px solid;
    }
</style>
<script>
    function draw(){

        var canvas = document.getElementById("my_canvas");
        var ctx    = canvas.getContext("2d");
        ctx.translate(ctx.canvas.width/3, ctx.canvas.height/2);
        var degree = (Math.PI / 180) * 1;

        function spinnBall(){

            // Black rotating Object 
            ctx.beginPath();
            ctx.strokeStyle = "black";
            ctx.moveTo(0, 0);
            ctx.lineTo(100, 0);
            ctx.lineWidth = 1;
            ctx.stroke();

            // Orange rotating Object
            ctx.beginPath();
            ctx.strokeStyle = "orange";
            ctx.moveTo(100, 0);
            ctx.lineTo(200, 0);
            ctx.lineWidth = 1;
            ctx.stroke();
            ctx.rotate(degree);
        }
        var iv = setInterval(spinnBall, 25);
    }
    window.onload = draw;

</script>
</head>
<body>
<canvas id="my_canvas" width="500" height="500">
</canvas>
</body>
</html>