[Matplotlib-users] moving a patch

[Jochen V. <vo...@se...>]

Hello,

I am trying to generate a short movie using matplotlib.
The core of my code looks like

    for i in range(1,len(t)):
        U0,U1x,U1y,H1 =3D list(sig[i,:])

        for x in arange(0,1.001,0.05):
            for y in arange(0,1.001,0.05):
                xx,yy=3Dtrace(U0,U1x,U1y,H1,x,y)
                ts[(x,y)].set_data(xx,yy)

        for j in range(0,nobs):
            tr[j].center =3D (obs[i,2*j],obs[i,2*j+1])

        savefig("f%04d.png"%i)

where the entries of the dictionary 'ts' are lines and the entries of
the dictionary 'tr' a patches (circles).  Moving the lines around with
set_data works quite fine, but moving the patches by setting 'center'
does not.

My question: how do I move a patch?

Many thanks,
Jochen
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http://seehuhn.de/