Mauro Cavalcanti wrote: > Dear ALL, > > I am using Basemap version 0.90 with MPL version 0.98.3 under Linux > Ubuntu, both installed from Andrew Straw repository (I just prefer to > install from repositories via apt than directly from the sources, > although in this case I do not have always the latest versions). >
Mauro: There never actually was a Basemap 0.90 - could you check that version number again with >>> from mpl_toolkits.basemap import __version__ >>> print __version__ 0.99.2 See below for my comment on the speed of drawing rivers .. > I stumbled upon a few issues that I could not solve by looking at the > available documentation. They are not really critical for me, but I > would be interested in finding some more about them anyway. > > Here they are: > > i) When trying some of the projections listed in the Basemap > documentation, I got a message saying that this or that projection is > not available, what leads me to think that these projections have only > been included in later versions of Basemap. However, I could not find > this in the documentation. This is not critical for my current > project, as I have no need to offer so many projections, but I would > like to know. > > ii) The plotting of rivers using the drawrivers() method is painfully > slow, even with resolution set to "crude". The FAQ provided with the > Basemap source package offers an interesting suggestion for > potentially solving this, but an exemple would be in order (the FAQ > mentions an "ireland.py" example which I have however not found in the > examples directory). > Looked into this a bit and found that drawing rivers the first time is slow, since the reading and processing of the river data is deferred until the drawrivers method is called. In contrast, the coastlines are read and processed on instance creation. I did this because most people don't use the river data, and I didn't want to impose that penalty on them on instance creation. Subsequent calls to drawrivers (with the same Basemap instance) are very fast. -Jeff > iii) In the same context as the above, I would be interested in > knowing if there is some way to speed up the plotting of a map with > the Blue Marble image superimposed on it. > > In general, I would like to suggest that the Basemap FAQ could be > expanded and made available in the website, along with, perhaps, some > the examples provided in the Basemap distribution package (in the same > way the examples are provided in the MPL page). > > Well, hope this helps! > > Have a nice weekend. > > With best regards, > > -- Jeffrey S. Whitaker Phone : (303)497-6313 NOAA/OAR/CDC R/PSD1 FAX : (303)497-6449 325 Broadway Boulder, CO, USA 80305-3328 ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
