On 01/17/2011 10:24 PM, sprobst wrote:
>
> Hi all,
>
> I want to make a contout plot with a slider element. But I am not sure if it
> is possible at all and if it is possible how.
With contouring, you have to simply remake the ContourSet (that is,
rerun contour) with any change to the data being contoured.
Eric
>
> The code is a mixture of two examples I found in the web. One part is the
> slider example of matplotlib
>
>
>
>> from pylab import *
>>
>> N = 50
>> x = linspace(.0, 1.0, N)
>> y = linspace(.0, 1.0, N)
>> X, Y = meshgrid(x, y)
>> Z = sin(X+16)  2*cos(Y*5.2)
>> c = contourf(X, Y, Z,20)
>> colorbar()
>>
>> # Copied from the slider example ... not sure about the syntax
>> axfreq = axes([0.25, 0.1, 0.65, 0.03])
>> sfreq = Slider(axfreq, 'Amp', 0.1, 10.0, valinit=1)
>> def update(val):
>> global sfreq
>> freq = sfreq.val
>> Z = sin(freq*X+16)  2*cos(Y*5.2)
>> c.set_data(Z) # Is something like that possible
>> draw()
>> sfreq.on_changed(update)
>> show()
>>
>
> I tried different stuff, but could not solve the problem. Perhaps anybody
> has an idea to help me.
>
> Thank you!
>
> Best regards
> Stefan
