fabricJs使用系列（一）
Get the canvas object while using fabric js
I'm using Fabric.js and I've created a fabric canvas object at one place.
var x = new fabric.Canvas("mycanvas");Now at another place, I want to access this object where 'x' won't be available. So how can I get the same fabric canvas object.
I don't wanna change the scope of x or pass x as arg.
Also, how to get the toDataURL from the fabric canvas object?
-----------------If you don't make the reference available, it won't be able to be accessed. That's how scope works. – alex
18down voteaccepted
Assuming that mycanvas is the ID of a Canvas element, you could store the reference to the fabric object on the Canvas element itself:
var x = new fabric.Canvas("mycanvas");
document.getElementById("mycanvas").fabric = x;You can then retrieve that object any time you want with:
var y = document.getElementById("mycanvas").fabric;
var url = y.toDataURL("png", 1);
