From my point of view, version 82-5 is simply too old to bother with. In newer versions quiver has been completely rewritten including masked array support. I recommend that you remove your ubuntu mpl package and install the latest release from the source tarball.
Eric giovanni ruggiero wrote: > Hi ALL, > I am just starting to leave the matlab to work with matplotlib 82-5 in > my ubuntu linux. I have problens to make a vector fild plots using > quiver. I have a netcdf file that i extract a u_velocity and v_velocity > variables, after i mask the array and try to quiver. i get the > following error > > Traceback (most recent call last): > File "<stdin>", line 1, in ? > File "/usr/lib/python2.4/site-packages/matplotlib/pylab.py", line > 2256, in quiver > ret = gca().quiver(*args, **kwargs) > File "/usr/lib/python2.4/site-packages/matplotlib/axes.py", line 828, > in quiver > U = asarray(U) > File "/usr/lib/python2.4/site-packages/Numeric/Numeric.py", line 134, > in asarray > return multiarray.array(a, typecode, copy=0, savespace=savespace) > File "/usr/lib/python2.4/site-packages/Numeric/MA/MA.py", line 632, in > __array__ > raise MAError, \ > MA.MA.MAError: Cannot automatically convert masked array to Numeric > because data > is masked in one or more locations. > > > But if i do not mask the array but i try to plot without the scale it > gets the error : > > File "<stdin>", line 1, in ? > File "/usr/lib/python2.4/site-packages/matplotlib/pylab.py", line > 2256, in quiver > ret = gca().quiver(*args, **kwargs) > File "/usr/lib/python2.4/site-packages/matplotlib/axes.py", line 855, > in quiver > if Nmax == 0: #jb > UnboundLocalError: local variable 'Nmax' referenced before assignment > > Could someone helps me? > Thanks > > ------------------------------------------------------------------------ > Novidade no Yahoo! Mail: receba alertas de novas mensagens no seu > celular. Registre seu aparelho agora! > <http://us.rd.yahoo.com/mail/br/tagline/mobile_alerts/*http://br.mobile.yahoo.com/mailalertas/> > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > > > ------------------------------------------------------------------------ > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
