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). > > 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. >
Mauro: Yes, the documentation applies to the current SVN version. Version 0.90 is rather old now. > 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). > I haven't noticed the rivers being slow, but I'll look into it. > 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. > Plotting the blue marble image involves interpolating a very large array from lat/lon coordinates to projection coordinates. So, no - there is no easy way to speed it up. If you're only using a few different map projections and regions, you could pickle those basemap instances and re-use them, thereby saving the interpolation cost. Using the "cyl" projection is reasonably fast, since there is no interpolation. > 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). > I try to expand the docs in my spare time, which I haven't had much of lately. Volunteers are welcome! -Jeff > 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
