Are you using the same version on matplotlib in both places? What are the versions? It seems unlikely these differences would be caused by the backend -- more likely just a version difference.
Mike bollweevil wrote: > Hello All, > > I am having lots of very frustrating little problems with Matplotlib. > > 1. Here is an example of one problem: the x-axis looks awful even though I > coded a tick locator and tick formatter special: > http://www.nabble.com/file/p22989017/inE.png > I think I know what caused this, too. While plotting, Python gave the > error/warning "DeprecationWarning: integer argument expected, got float > tzinfo=rr._ tzinfo". With many very similar data sets, it doesn't give that > error and draws nice tick marks like this: > http://www.nabble.com/file/p22989017/31%2B2009.png > Is the error caused by the fact that the data doesn't fill the whole X-axis? > That would be an unfortunate reason to fail, especially considering the > second problem... > > 2. Here is another problem: GTK on my MacBook always successfully changes > the X-axis limits when I say plt.xlim(number1, number2). Using the Agg > backend on an Ubuntu server (which doesn't have GTK because it is headless), > xlim NEVER works. Ubuntu with Agg draws a graph fine, but it uses whatever > limits it would have used default. Example from Ubuntu with Agg: > http://www.nabble.com/file/p22989017/Matplotlib%2Bgraph%2B-%2BExemplifies%2Bdate%2Bformatting%2Band%2Bxlim%2Bbugs.png > > Example from my MacBook with GTK: > http://www.nabble.com/file/p22989017/22%2B2009.png > > 3. The final problem is also demonstrated by the two example images in > problem #2 above: Agg completely ignores my tick formatter, and perhaps also > my tick locator. Why? > > Here is all of the relevant Matplotlib code I am using: > > plt.clf() > ax = plt.subplot(111) > if dateMin: > plt.xlim(xmin=dateMin, xmax=dateMax) > plt.plot(yDates, xIntensity) > xmin, xmax = plt.xlim() > xrange = num2date(xmax)-num2date(xmin) > if xrange < datetime.timedelta(hours=24): > widthInUnits = divideDelta(xrange, datetime.timedelta(hours=1)) > stepRaw = widthInUnits/5. #The denominator here is the maximum > number of > ticks on the x axis. So putting 5 in the denominator, as I have done here, > means there will be up to 5 tick marks. > step = floor(stepRaw+1) > majorFormatter = DateFormatter('%I:%M %p') > majorLocator = HourLocator(interval=step) > elif xrange < datetime.timedelta(days=5): > widthInUnits = divideDelta(xrange, datetime.timedelta(hours=12)) > stepRaw = widthInUnits/7. > step = floor(stepRaw+1) > majorFormatter = DateFormatter('%m/%d\n%I%p') > majorLocator = HourLocator(interval=step*12) > elif xrange < datetime.timedelta(days=300): > widthInUnits = divideDelta(xrange, datetime.timedelta(days=1)) > stepRaw = widthInUnits/8. > step = floor(stepRaw+1) > majorFormatter = DateFormatter('%m/%d') > majorLocator = DayLocator(interval=step) > else: > widthInUnits = divideDelta(xrange, datetime.timedelta(days=30)) > stepRaw = widthInUnits/7. > step = floor(stepRaw+1) > majorFormatter = DateFormatter('%b\n%Y') > majorLocator = MonthLocator(interval=int(step)) > ax.xaxis.set_major_locator(majorLocator) > ax.xaxis.set_major_formatter(majorFormatter) > if dateMark: > for mark in dateMark: > l = plt.axvline(x=mark, color='r') > plt.savefig(str(filePath+'/'+fileNameExt)) > > Thank you, I hope somebody can help. > -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
