Matplotlib slider to move vertical axis
I would like to make a slider to move a vertical axis. I'm able to create a vertical axis with:
plt.axvline(0.5, color = 'green')
My code is based on matplotlip's slider_demo.py example.
In that code, to update the graph, they call:
l.set_ydata(amp*np.sin(2*np.pi*freq*t))
where
l, = plt.plot(t, s, lw=2, color='red')
How can I change this to update a vertical axis linked to a slider? (Which arguments should I use to give to set_data to create a vertical_axis or another function to use to update that axis?)
Edit:
To be more specific, doing :
plt.axvline(slider.val, color = 'green')
in the update function of the slider
creates a new vertical axis when moving the slider but doesn't remove the previously existing one.
If I do
v = plt.axvline(0.5, color = 'green')
and in the update function
v.remove()
v = plt.axvline(slider.val, color = 'green')
it doesn't work, the axes stays at the same place. If i do in the update function :
v.remove()
plt.axvline(slider.val, color = 'green')
It works the first time I move my slider, but not after that.
python matplotlib
asked Nov 14 '18 at 16:09
Statistic DeanStatistic Dean
41311
add a comment |
I would like to make a slider to move a vertical axis. I'm able to create a vertical axis with:
plt.axvline(0.5, color = 'green')
My code is based on matplotlip's slider_demo.py example.
In that code, to update the graph, they call:
l.set_ydata(amp*np.sin(2*np.pi*freq*t))
where
l, = plt.plot(t, s, lw=2, color='red')
How can I change this to update a vertical axis linked to a slider? (Which arguments should I use to give to set_data to create a vertical_axis or another function to use to update that axis?)
Edit:
To be more specific, doing :
plt.axvline(slider.val, color = 'green')
in the update function of the slider
creates a new vertical axis when moving the slider but doesn't remove the previously existing one.
If I do
v = plt.axvline(0.5, color = 'green')
and in the update function
v.remove()
v = plt.axvline(slider.val, color = 'green')
it doesn't work, the axes stays at the same place. If i do in the update function :
v.remove()
plt.axvline(slider.val, color = 'green')
It works the first time I move my slider, but not after that.
python matplotlib
asked Nov 14 '18 at 16:09
Statistic DeanStatistic Dean
41311
For a vertical line you probably want to update the x value,set_xdata([slider.val,slider.val])
– ImportanceOfBeingErnest
Nov 14 '18 at 16:32
Doing v.set_xdata(slider.val) does the trick. Thank you very much!!!
– Statistic Dean
Nov 14 '18 at 16:36
add a comment |
I would like to make a slider to move a vertical axis. I'm able to create a vertical axis with:
plt.axvline(0.5, color = 'green')
My code is based on matplotlip's slider_demo.py example.
In that code, to update the graph, they call:
l.set_ydata(amp*np.sin(2*np.pi*freq*t))
where
l, = plt.plot(t, s, lw=2, color='red')
How can I change this to update a vertical axis linked to a slider? (Which arguments should I use to give to set_data to create a vertical_axis or another function to use to update that axis?)
Edit:
To be more specific, doing :
plt.axvline(slider.val, color = 'green')
in the update function of the slider
creates a new vertical axis when moving the slider but doesn't remove the previously existing one.
If I do
v = plt.axvline(0.5, color = 'green')
and in the update function
v.remove()
v = plt.axvline(slider.val, color = 'green')
it doesn't work, the axes stays at the same place. If i do in the update function :
v.remove()
plt.axvline(slider.val, color = 'green')
It works the first time I move my slider, but not after that.
python matplotlib
asked Nov 14 '18 at 16:09
Statistic DeanStatistic Dean
41311
I would like to make a slider to move a vertical axis. I'm able to create a vertical axis with:
plt.axvline(0.5, color = 'green')
My code is based on matplotlip's slider_demo.py example.
In that code, to update the graph, they call:
l.set_ydata(amp*np.sin(2*np.pi*freq*t))
where
l, = plt.plot(t, s, lw=2, color='red')
How can I change this to update a vertical axis linked to a slider? (Which arguments should I use to give to set_data to create a vertical_axis or another function to use to update that axis?)
Edit:
To be more specific, doing :
plt.axvline(slider.val, color = 'green')
in the update function of the slider
creates a new vertical axis when moving the slider but doesn't remove the previously existing one.
If I do
v = plt.axvline(0.5, color = 'green')
and in the update function
v.remove()
v = plt.axvline(slider.val, color = 'green')
it doesn't work, the axes stays at the same place. If i do in the update function :
v.remove()
plt.axvline(slider.val, color = 'green')
It works the first time I move my slider, but not after that.
python matplotlib
python matplotlib
asked Nov 14 '18 at 16:09
Statistic DeanStatistic Dean
41311
asked Nov 14 '18 at 16:09
Statistic DeanStatistic Dean
41311
edited Nov 14 '18 at 16:28
Statistic Dean
asked Nov 14 '18 at 16:09
Statistic DeanStatistic Dean
41311
asked Nov 14 '18 at 16:09
Statistic DeanStatistic Dean
41311
asked Nov 14 '18 at 16:09
Statistic DeanStatistic Dean
41311
41311
For a vertical line you probably want to update the x value,set_xdata([slider.val,slider.val])
– ImportanceOfBeingErnest
Nov 14 '18 at 16:32
Doing v.set_xdata(slider.val) does the trick. Thank you very much!!!
– Statistic Dean
Nov 14 '18 at 16:36
add a comment |
For a vertical line you probably want to update the x value,set_xdata([slider.val,slider.val])
– ImportanceOfBeingErnest
Nov 14 '18 at 16:32
Doing v.set_xdata(slider.val) does the trick. Thank you very much!!!
– Statistic Dean
Nov 14 '18 at 16:36
For a vertical line you probably want to update the x value,
set_xdata([slider.val,slider.val])– ImportanceOfBeingErnest
Nov 14 '18 at 16:32
For a vertical line you probably want to update the x value,
set_xdata([slider.val,slider.val])– ImportanceOfBeingErnest
Nov 14 '18 at 16:32
Doing v.set_xdata(slider.val) does the trick. Thank you very much!!!
– Statistic Dean
Nov 14 '18 at 16:36
Doing v.set_xdata(slider.val) does the trick. Thank you very much!!!
– Statistic Dean
Nov 14 '18 at 16:36
add a comment |
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For a vertical line you probably want to update the x value,
set_xdata([slider.val,slider.val])– ImportanceOfBeingErnest
Nov 14 '18 at 16:32
Doing v.set_xdata(slider.val) does the trick. Thank you very much!!!
– Statistic Dean
Nov 14 '18 at 16:36