On 03/10/2011 01:13 AM, Daniel Mader wrote: > Maybe I should mention that there are actually two reasons why I don't > like this behavior: > > 1) it's sometimes very hard to read what's going on, > 2) there also seems to be a bug when the limits are changed later, see > attached results: the upper subplot is default, the lower subplot uses > the padding. > > ##-------------------------- > def update_ax2(ax1): > ''' > Automatically update ylim of ax2 when ylim of ax1 changes. > ''' > y1, y2 = ax1.get_ylim() > ## modify the limits > ax2.set_ylim((Tc(y1), Tc(y2))) > ax2.figure.canvas.draw() > > Both plots are actually identical but use a different x-axis. In > ordert to create a nicely padded plot, I use the following function, > which breaks the scaling information AND the calculation of the second > axis limits: > > ##-------------------------- > def axispaddingAX(ax): > ''' > Saubere bzw. schoene Achsenskalierung für MPL-Skripten. > ''' > lines = ax.get_lines() > xtemp = [] > ytemp = [] > for line in lines: > xtemp.append(min(line.get_xdata())) > xtemp.append(max(line.get_xdata())) > ytemp.append(min(line.get_ydata())) > ytemp.append(max(line.get_ydata())) > xmin,xmax = min(xtemp),max(xtemp) > ymin,ymax = min(ytemp),max(ytemp) > span = 0.05 > rangex = (xmin-span*(xmax-xmin), xmax+span*(xmax-xmin)) > rangey = (ymin-span*(ymax-ymin), ymax+span*(ymax-ymin)) > ax.set_xlim(rangex) > ax.set_ylim(rangey)
I don't know if it would help overall, but in place of your padding function, have you considered the pylab or pyplot margins() function? Eric > > > Thanks a lot in advance for any hint or comment on this, > Daniel > > 2011/3/10 Daniel Mader<danielstefanma...@googlemail.com>: >> Hi, >> >> is it possible to change the default y-axis scaling so that the >> ticks/label are not with respect to the large offset? >> >> For example: >> >> import scipy >> import pylab >> >> x = scipy.arange(100) >> y = scipy.rand(100) + 1000006 >> >> pylab.figure() >> pylab.plot(x,y) >> pylab.grid() >> >> pylab.show() >> >> This gives the y-limits as (0,1) with respect to 1000006. This makes >> it very hard to read. I'd like to be able to configure this manually. >> >> Thanks in advance, >> Daniel >> >> >> >> ------------------------------------------------------------------------------ >> Colocation vs. Managed Hosting >> A question and answer guide to determining the best fit >> for your organization - today and in the future. >> http://p.sf.net/sfu/internap-sfd2d >> >> >> _______________________________________________ >> Matplotlib-users mailing list >> Matplotlib-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
