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1.3 KiB
1.3 KiB
Scale the image so the given width and height keeping the aspect ratio. Some parts of the image may be clipped.
Usage
- @param {number} w the width to resize the image to
- @param {number} h the height to resize the image to
- @param {number} alignBits (optional) A bitmask for horizontal and vertical alignment
- @param {string} mode (optional) a scaling method (e.g. Jimp.RESIZE_BEZIER)
- @param {function(Error, Jimp)} cb (optional) a callback for when complete
import jimp from 'jimp';
async function main() {
const image = await jimp.read('test/image.png');
image.cover(150, 100);
}
main();
Align modes
The following constants can be passed to image.cover
:
Jimp.HORIZONTAL_ALIGN_LEFT;
Jimp.HORIZONTAL_ALIGN_CENTER;
Jimp.HORIZONTAL_ALIGN_RIGHT;
Jimp.VERTICAL_ALIGN_TOP;
Jimp.VERTICAL_ALIGN_MIDDLE;
Jimp.VERTICAL_ALIGN_BOTTOM;
For example:
image.cover(250, 250, Jimp.HORIZONTAL_ALIGN_LEFT | Jimp.VERTICAL_ALIGN_TOP);
image.cover(250, 250, Jimp.HORIZONTAL_ALIGN_RIGHT | Jimp.VERTICAL_ALIGN_BOTTOM);
Default align mode for image.cover
is:
Jimp.HORIZONTAL_ALIGN_CENTER | Jimp.VERTICAL_ALIGN_MIDDLE;