How can I draw nodes and edges in PyQT?

Question

In PyQT, how can I plot small "Nodes" at given points and connect them with edges? All of the PyQT tutorials I find are "plot a button! plot a checkbox!"

Huge thanks in advance

Answer 1

You can find an excellent tutorial here (and it doesn't "plot" buttons or checkboxes -- it draws lines, just as you want!).

Answer 2

If you want to be able to interact with the objects displayed in the plot, you will be better off using a QGraphicsScene. It handles zooming and panning and can contain other QGraphicsItem objects that can handle their own interactions.

It's very easy to use, but there is a bit of overhead involved, especially if you plan to make thousands of objects.

You can find a PyQt tutorial here. This and the API docs should get you started.