Canvas Rotate
How to Rotate
To rotate a canvas object, follow these steps
- canvas - Assigning the canvas element to a variable.
- ctx - Assigning the 2d rendering context to another variable by calling the
getContext('2d')method. - rotate() - Use
rotate()canvas method to add a rotation to the transformation matrix. - fillStyle - Use
fillStylecanvas property to specify the color to use inside shapes (any shape). - fillRect() - Use
fillRect()canvas method to draws a rectangle that is filled according to the currentfillStyle.
Example
HTML Online Editor
<!DOCTYPE html>
<html lang="en-US">
<body>
<canvas id="point" width="100" height="150">
Your browser does not support the canvas element.
</canvas>
<script>
var canvas = document.getElementById('point');
var ctx = canvas.getContext('2d');
ctx.rotate(60 * Math.PI / 180);
ctx.fillStyle = '#339933';
ctx.fillRect(50, 0, 100, 20);
</script>
</body>
</html>
Syntax
ctx.rotate(angle)
Attributes Value
| Value | Explanation |
|---|---|
| angle | Specifies the rotation angle, clockwise in radians. You can use degree * Math.PI / 180 if you want to calculate from a degree value. |
Reminder
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