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POMatplotlib basemaps draws two parallels on stereographic projection
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This is my first question on Stack Overflow, so my apologies if I've overlooked anything. I'm making a plot of cruise positions, and I am getting a double-parallel happening at 60 degrees North, with one being a straight line (on a stereographic projection). Does anybody know what I'm doing to cause this? My plotting script (referencing external data): <pre><code>from mpl_toolkits.basemap import Basemap import numpy as np import matplotlib.pyplot as plt import sys import csv dataFile = sys.argv[1] dataStream = open(dataFile, 'rb') dataReader = csv.reader(dataStream, delimiter=',') numRows = sys.argv[2] dataLat = [] dataLon = [] dataReader.next() for row in dataReader: dataLon.append(float(row[5])) dataLat.append(float(row[6])) m = Basemap(width=450000,height=150000, resolution='f',projection='stere',\ lat_ts=65.4,lat_0=60.4,lon_0=1.91) m.drawcoastlines(linewidth=0.2) m.fillcontinents(color='white', lake_color='aqua') x, y = m(dataLat,dataLon) m.scatter(x,y,.5,marker='.',color='k') m.drawparallels(np.arange(0.,81,1.), labels=[1,0,0,0], fontsize=10) m.drawmeridians(np.arange(-180.,181.,5.), labels=[0,0,0,1], fontsize=10) m.drawmapboundary(fill_color='aqua') plt.title("Cruise Track") plt.show() </code></pre> Example: <img src="https://i.stack.imgur.com/hAmWV.png" alt="Example plot"> One other small question: what are the units of the width / height of the plot? It does not appear to be in the documentation, and I can't find it mentioned on any tutorials, etc.
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<python><matplotlib><matplotlib-basemap>
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Matplotlib basemaps draws two parallels on stereographic projection
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