Questions about querying in plots

[vyrjana]

Is the callback supposed to be called repeatedly when querying is enabled and the user has designated the query area?

I was hoping to use the querying feature of plots to allow users to select an area of the plot and then hide any data points contained within. However, I'm not sure if the current behavior of the callback is working as intended or not given that the information provided via the app_data argument (i.e. the minimum and maximum x- and y-values) remains constant across the invocations of the callback function provided that the user isn't manipulating the plot in any way. Right now (i.e. version 1.3.1 of DearPyGui) the callback is being invoked repeatedly until the querying is ended by the user (i.e. middle-mouse click on the plot once more). It would seem reasonable to me to limit the invocation of the callback function to a) when the user has finished designating the query area and b) whenever the user pans around in the plot while the query area is present.

Is there any way to programmatically stop the querying and clear the query area (i.e. the rectangle that is drawn on top of the plot)?

If the callback is working as intended, then the ability to end the querying would be even more useful for my use case as a means of preventing further invocations of the callback. However, I would in any case find it very useful to be able to end the querying and in particular to remove the query rectangle from the plot. I tried calling configure_item(sender, query=False) from within the callback function but that simply prevents the user from ending the querying state and the callback function is still being invoked repeatedly. I also used the get_item_info and get_item_children functions to check if the plot happened to have any references to the query area but alas that was not the case as far as I could tell.

In my case the ability to remove the query rectangle would be very useful for preventing the edge case where the user has an active query in multiple plots. I'm plotting both the Cartesian and the polar coordinate representations of the same data using two plots, and I'd like to implement this feature in such a way that the user could highlight the points they wanted to hide using either of the two plots. Thus, if I instead avoided using the callback by making use of the is_plot_queries and get_plot_query_area functions, then I might run into the problem of having to figure out which plot's query area to use.

Would it be possible to amend the get_plot_query_area function so that one could specify the y-axis to use when returning y-values?

It seems like get_plot_query_area currently returns y-values that correspond to the latest y-axis to be added to the plot.

I can just use the minimum and maximum y-values together with get_axis_limits to figure out the corresponding minimum and maximum y-values for all other y-axes.

[hoffstadt]

Hi, sorry for the late response! We've been overwhelmed the last few months.

1. The behavior is correct. It will continually run.
2. We probably need to add this as a feature. If you don't mind, please submit a feature request!

[vyrjana]

Hi! Don't worry about it.

1. Okay. In hindsight the phrasing used in the documentation makes more sense now (note the part in bold, italic text):

The callback of the plot will run when the plot is being queried.

2. Done! A function for ending querying in plots #1649

Thanks for responding!