我如何使用fabricJ自定义画布的每个角落大小?任何人都可以找到答案
var canvas = new fabric.Canvas('c3');
canvas.add(new fabric.Circle({ radius: 30, fill: '#f55', top: 100, left: 100 }));
console.log(canvas);
canvas.item(0).set({
borderColor: 'red',
cornerColor: 'green',
cornerSize: 6,
transparentCorners: false
});
canvas.setActiveObject(canvas.item(0));
this.__canvases.push(canvas);