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

XYZ.npz (50.6 KB)