Re: [Matplotlib-users] basemap meridians cut off

spmls

July 5, 2013 10:58 AM

Hello,

I've been having a problem in my basemap plots of areas with small spatial
extents, where my meridians are cutoff like so:

<http://matplotlib.1069221.n5.nabble.com/file/n41409/Max_Water_Surface.png>

I've tried simplifying the code as much as possible, but still get a similar
problem:
<http://matplotlib.1069221.n5.nabble.com/file/n41409/meridians_cutoff_atTop.png>

The meridians plot correctly when I use a normal mercator instead of the
transverse mercator projection, so switching to mercator is my last resort
option for now. Has anyone dealt with this problem before and found a
workaround?

Thank you!
-SeanPaul

Here's my simplified code:

import numpy as np
import matplotlib as mpl
from mpl_toolkits.basemap import Basemap
import matplotlib.pyplot as plt


"""Input desired lats (y) and lons(x) of plot"""
############
xmin = -166.22
xmax = -166.134

ymin = 53.7439
ymax = 53.7827
############

m = Basemap(projection='tmerc', lon_0=-165. , lat_0=0 , llcrnrlon=xmin,
llcrnrlat=ymin, urcrnrlon=xmax , urcrnrlat=ymax)

meridians = np.arange(xmin,xmax,(30/3600)) # 30 arcsecond spacing
m.drawmeridians(meridians)

parallels = np.arange(ymin,ymax,(30/3600))
m.drawparallels(parallels)

plt.show()



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