On Fri, Aug 13, 2010 at 3:34 AM, Jeremy Conlin <jlcon...@gmail.com> wrote: > I have a problem with the scaling of the numbers on a colorbar. The > problem occurs when the numbers used as colorbar labels need to be > scaled (i.e. by 1E3). The colorbar correctly puts the scaling value > on the top of the colorbar, but instead of of multiplying by a scale > factor, addition is used instead. See the attached script and figure > for example. In the example, it looks like the color scale goes from > 0 to 2*5E3. At least, that's what I thought when I first looked at > it. Instead it means 5000 to 5002. > > Is there anyway I can scale the colorbar labels by *multiplying* them > by a scaling factor instead of *adding* a scaling factor? That seems > more intuitive to me and those I work with. >
Given the value range of 5000-5002, I doubt how using the scaling factor improve your plot. To disable the use of offset (+5000), cb = fig.colorbar(pc) # do not use offset cb.formatter.set_useOffset(False) cb.update_ticks() If you do want to use scaling factor, # to use scaling factor cb.formatter.set_scientific(True) cb.formatter.set_powerlimits((0,0)) cb.update_ticks() This will only work with matplotlib v1.0. In older versions, try to replace "update_ticks" with "update_bruteforce" (but I'm not sure if this will work) IHTH, -JJ > Jeremy > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by > > Make an app they can't live without > Enter the BlackBerry Developer Challenge > http://p.sf.net/sfu/RIM-dev2dev > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
