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canvas-constructor
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This module requires one of the following packages to be installed for Node.js:
Note: If you are building a website, no extra dependencies are required.
How to use it:
Node.js:
const { Canvas } = require('canvas-constructor/napi-rs');
// or `canvas-constructor/skia` if you are using `skia-canvas`
// or `canvas-constructor/cairo` if you are using `canvas`
new Canvas(300, 300)
.setColor('#AEFD54')
.printRectangle(5, 5, 290, 290)
.setColor('#FFAE23')
.setTextFont('28px Impact')
.printText('Hello World!', 130, 150)
.png();
Browser:
<script type="text/javascript" src="https://unpkg.com/canvas-constructor"></script>
<script type="text/javascript">
const canvasElement = document.getElementById('canvas');
new CanvasConstructor.Canvas(canvasElement)
.setColor('#AEFD54')
.printRectangle(5, 5, 290, 290)
.setColor('#FFAE23')
.setTextFont('28px Impact')
.printText('Hello World!', 130, 150);
</script>
Alternatively, you can import canvas-constructor/browser
.
Now, let's suppose we want to add images, we'll use Canvas.loadImage
, which works in both Node.js and browser:
const { Canvas, loadImage } = require('canvas-constructor/napi-rs');
async function createCanvas() {
const image = await loadImage('./images/kitten.png');
return new Canvas(300, 400)
.printImage(image, 0, 0, 300, 400)
.setColor('#FFAE23')
.setTextFont('28px Impact')
.setTextAlign('center')
.printText('Kitten!', 150, 370)
.pngAsync();
}
And now, you have created an image with a kitten in the background and some centred text in the bottom of it.
If you experience issues with @napi-rs/canvas
, skia-canvas
, or canvas
, please refer to their respective package repositories, this
package is just a convenient wrapper for the three.
FAQs
A ES6 class for node-canvas with built-in functions and chained methods.
The npm package canvas-constructor receives a total of 1,099 weekly downloads. As such, canvas-constructor popularity was classified as popular.
We found that canvas-constructor demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
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