P.Romero wrote: > Jeff, > I've attached a test script and my data file. > Unfortunately, the method that Im using to create the data set isn't very > portable (the data is being imported from an external program), so sending > my .npz file is the best I can do. > > The gaps are about 5 pixels, and create an offset from where the contours > end to where the basemap hits the edge of the plot. > > Please let me know if there's something in my data set that could be causing > this, or if its an issue with basemap. > > Thanks, > P.Romero >
Pablo: The extend of your map projection region is m.ymin, m.ymax = 0.0 1812318.63167 whereas Y.min(), Y.max() = -28762.6317985 1780259.69866. The reason you get the gap along the top edge is that the data doesn't extend all the way to the northern boundary of the map region. Just shrink your map region a little bit and it will go away. -Jeff > -----Original Message----- > From: Jeff Whitaker [mailto:jsw...@fastmail.fm] > Sent: 2009-04-06 6:13 AM > To: P.Romero > Cc: matplotlib-users@lists.sourceforge.net > Subject: Re: [Matplotlib-users] problem with basemap & my data arrays, gap > around plot edge > > P.Romero wrote: > >> Hi, >> >> Im having a problem with contourf & basemap; >> >> theres a fairly wide gap showing up around the top&left edges of my plot. >> >> Im trying to do the following: >> >> Import numpy as np >> >> Z=my_data( .) >> >> m=basemap( . ) >> >> X,Y=m(*np.meshgrid(Z.lon,Z.lat)) >> >> Znp=Z.filled >> >> cs=m.contourf(X,Y,Znp) >> >> using this method, Im experiencing a strange gap around the left&top >> edges of the plot. >> >> It seems as if the contour data is not aligning correctly with the >> basemap, or is somehow 'falling short' of filling in the entire area. >> >> Ive used this same method to plot other contour plots and have never >> experienced this type of gap (using the same version of >> basemap/matplotlib/numpy/etc.). >> >> Im not sure if there's something wrong with the way Im creating my >> data, or if this is a problem with basemap. >> >> In either case, can someone please provide me with some help figuring >> out why that gap is appearing? >> >> Ive attached an npz file with my 3 arrays: X,Y,Znp. >> >> Ive also attached a png image of my output, where the gap is clearly >> evident around the left&top edges. >> >> Thanks, >> >> P.Romero >> >> > > Pablo: Please include a working example that creates your example plot. > > -Jeff > -- Jeffrey S. Whitaker Phone : (303)497-6313 Meteorologist FAX : (303)497-6449 NOAA/OAR/PSD R/PSD1 Email : jeffrey.s.whita...@noaa.gov 325 Broadway Office : Skaggs Research Cntr 1D-113 Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg ------------------------------------------------------------------------------ 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
