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@Zyndoras
Last active April 29, 2024 11:41
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Rotate base64 image (Javascript)
function rotate(srcBase64, degrees, callback) {
const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');
const image = new Image();
image.onload = function () {
canvas.width = degrees % 180 === 0 ? image.width : image.height;
canvas.height = degrees % 180 === 0 ? image.height : image.width;
ctx.translate(canvas.width / 2, canvas.height / 2);
ctx.rotate(degrees * Math.PI / 180);
ctx.drawImage(image, image.width / -2, image.height / -2);
callback(canvas.toDataURL());
};
image.src = srcBase64;
}
// Usage:
const img = document.getElementById('image');
rotate(img.attributes.src.value, 90, function(resultBase64) {
img.setAttribute('src', resultBase64);
});
@omedinapr
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Thank you for this 👍

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