On 05/26/2010 12:31 PM, Jose Guzman wrote: > Dear Matplotlib users, > > I need to plot a (time x distance) array of measurements associated with > a color bar. Although time is fixed (i.e 0, 1, 2, etc..), to the number > of rows, the distances are not evenly distributed (e.g are fixed to > 1.22, 1.53, 1.84, 2,11.), although are always constant. > > My question is simple. How can I modify the 'extent ' argument so that I > represent the real distance values, and not simply evenly distributed > events?
It sounds like you need to use the NonUniformImage: http://matplotlib.sourceforge.net/examples/pylab_examples/image_nonuniform.html Eric > > Any suggestion or comment would be greatly appreciated! > > A minimal example plot is given bellow: > > Thanks a lot in advance > > Jose. > > #================================= > import matplotlib.pyplot as plt > import numpy as np > > # fake data > random = np.random.randint(0, 300, size=(55,127) > > fig = plt.figure() > ax = fig.add_subplot(111) > > myaspect = 100.0 > > # How can adjust this data to my REAL distances > # (e.g 1.22, 1.53, 1.84, 2,01) ???. > myextent=[-400,800,0,10] > > cax = ax.imshow(random, aspect = myaspect, extent=myextent, vmin=0, > vmax=300) > ax.set_ylabel('Time (ms)') > ax.set_xlabel('Distance (mm)') > > colorbar = fig.colorbar(cax, ticks=[0,100,200,300,400]) > colorbar.ax.set_yticklabels(['0','100','200','300','400']) > colorbar.ax.set_ylabel('Measurement') > > plt.show() > > #================================= > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
