title: Is there a way to include some sort of dial widget to pan data along a 2d graph using pyqtgraph?
body: <p>This is not a debugging question, but rather I am seeking code and/or guidance for a specific goal I want to accomplish. I am currently in the process of programming a GUI for a scientific instrument in my research lab. Essentially it takes user inputted data, runs voltages through stuff, and then outputs voltages which are then plotted onto a graph. One of the capabilities that were discussed included having some sort of dial widget on this graph to &quot;pan&quot; the data. To give a better idea of what I am envisioning, it is similar to what exists on desmos. If you graph a function and put a point down on that function, you can click and drag that point to various points along the function. I would like to have a dial rather than just click and drag, but I'm not sure what capabilities exist, so I will take pretty much anything over nothing. If anyone could help with this that would be fantastic!</p>