[Matplotlib-devel] feature request

[tune.kamae at gmail.com]

Dear Developers,

 

I have been developing sound-guided matplotlib to assist blind students to trace curves on the 2D plots.

 

I figured out to implement what I want for plotted curves but still struggling to enable tracing the x and y axes. The sample plot I am working with is Axes.pickable. What I cannot figure out is to get majoraxislabels when a finger-touch event occurs within a fixed distance, eg. Picker=5 of x-axis.

 

First I have to figure out if the event is onaxes. I am using what I found in Matplotlib tutorials. How should I modified the codes below?

def onpick(event):

    thisline = event.artist

    xdata = thisline.get_xdata()

    ydata = thisline.get_ydata()

    ind = event.ind

    points = tuple(zip(xdata[ind], ydata[ind]))

    print('onpick points:', points)

    if onpick: 

        print ("Data points picked")

        winsound.Beep(Freq,Dur)

 

Thank you for the assistance,

 

Tune Kamae

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