fabricjs clipTo

来源：https://stackoverflow.com/questions/39787776/fabricjs-clipto-is-not-working

var objImg = null;var image = fabric.Image.fromURL(img, function(oImg) {                    oImg.set({width: oImg.width,                              height: oImg.height,                              left: 100,                              top: 100,                              originX: 'center',                              originY: 'center',                              selectable: false,                              perPixelTargetFind: true,                              transparentCorners: false});                    canvas.setActiveObject(oImg);                    objImg  = canvas.getActiveObject();                    objImg.clipTo = function(ctx) {                console.log("ctx")                console.log(ctx);                ctx.rect(                            2,                            2,                            430,                            430                        );            }                    canvas.add(oImg);});