Fabric.js是一个在服务器端运行的Node.js扩展模块，用于在Web上绘制各种图形的JS库。
示例代码：
var fabric = require('fabric').fabric, cavas = fabric.createCavasForNode(200, 200);cavas.add(ew fabric.Rect({ top: 100, left: 100, width: 100, height: 50, agle: 30, fill: 'rgba(255,0,0,0.5)'}));var out = require('fs').createWriteStream(__dirame + '/rectagle.pg'), stream = cavas.createPNGStream();stream.o('data', fuctio(chuk) { out.write(chuk);});
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