如何更新JavaFX canvas？

Question

I've been working on a GUI for visualizing the layout and working of a basic neural network program that I have been developing and figured the best way would be via JavaFX canvas. Each cycle, the program clears the screen then redraws the status using

GraphicsContext gc = canvas.getGraphicsContext2D();
gc.clearRect(0, 0, canvas.getWidth(), canvas.getHeight());
gc.fillOval(x, y, 30, 30);
gc.strokeLine(x1, y1, x2, y2);

to draw the nodes (ovals) and connections (lines) in the correct places. However, instead of updating the display with each iteration as I would expect, the canvas remains blank until all iterations are completed and there is no more drawing being performed on the canvas.

How do I make the canvas update as it is being drawn onto (ie; changing when the data changes) instead of once all drawing is completed?

Thanks for any help!

Answer 1

问题是我的线程没有正确设置，因此正在调用它的线程中暂停进一步的处理，直到完成为止。