I want to get the shoreline of Malaren lake as http://en.wikipedia.org/wiki/File:La3-demis-malaren.png. But I find that the following Matplotlib-Basemap program does not draw its shoreline but its islands. Is it the flaw of GSHHS?
from mpl_toolkits.basemap import Basemap
import matplotlib.pyplot as plt
m = Basemap(width=180000,height=90000,
Kentaro: Apparently it's a flaw in GSHHS. I tried the online line map creator at http://www.aquarius.geomar.de/cgi-bin/map-cgi.pl (which uses GMT, which is the source of GSSHS) and got the same thing. It's possible that it's fixed in the latest version of GSHHS (1.10) - I'll take a look and let you know.