How to use Canvas Rotate Transform in HTML5

In this article I am going to explain about Canvas Rotate Transform in Html5.
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Canvas Rotate Transform in Html5

Use of Canvas Rotation Transform to defined rotation of an element. For its we use rotate() method where we defined angle and radius of an element.











            margin: 0px;

            padding: 0px;




        window.onload = function () {

            var cnvs = document.getElementById("cnvsh");

            var cntx = cnvs.getContext("2d");

            var rectWidth = 150;

            var rectHeight = 75;


            cntx.translate(cnvs.width / 5, cnvs.height / 2);


            // rotate 50 degrees clockwise

            cntx.rotate(Math.PI / 2);


            cntx.fillStyle = "blue";

            cntx.fillRect(-rectWidth / 2, -rectHeight / 2, rectWidth, rectHeight);






    <canvas id="cnvsh" width="500" height="200"></canvas>







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