mcanvas
New version 2.0.0 is coming. It contains some new features:
- Support new function:
- image merge；
- image compress；
- image crop;
- image filter;
- Support usage in node.js；
- .draw() support usage by promise;
- Rewrite in typescript;
Document
Introduction
mcanvas is a image handler plugin that can easily merge, crop, compress, filter the image and export a image of base64 finally. It provides some simple api that based on canvas, in order to make your work more efficiently and conveniently.
Installation
-
You can download the latest version from the GitHub
-
use a npm CDN Web and use
window.MCanvas -
Or you can install via npm:
npm install mcanvas --save
import { MCanvas } from 'mcanvas'Basic Usage
MCanvas
// create the canvas by width and height;
import { MCanvas } from 'mcanvas'
const mc = new MCanvas({
width,
height,
backgroundColor,
});
// prepare background-image
mc.background(image, {
left: 0,
top: 0,
color: '#000000',
type: 'origin',
})
// prepare the image material, add into queue;
.add('images/nose.png',{
width:183,
pos:{
x:250,
y:369,
scale:0.84,
rotate:1,
},
})
// add text;
.text('normal<br><s>smallsmall</s>',{
width:'300px',
align:'center',
pos:{
x:0,
y:0,
},
})
// prepare watermark;
.watermark(img ,{
width:'40%',
pos:'rightBottom',
})
// draw all material that prepared before, and get the base64-image
.draw(b64 =>{
console.log(b64);
});MImage
// image handler
// inclue crop / compress / common filter
import { MImage } from 'mcanvas'
const mi = new MImage('http://mtapplet.meitudata.com/596c72073971d86b5128.jpg')
mi.filter('blur')
// crop to area by 300 * 300 and center in origin image
.crop({
x: 'center',
y: 'center',
width: 300,
height: 300,
radius: 10,
})
// compress into a image that width is 200px and quality is 0.9
.compress({
width: 200,
quality: .9,
})
// get the base64-image
.draw(b64 => {
console.log(b64)
})