Hi Mat, On Apr 26, 2013, at 3:03 AM, Mathew Topper <mathew.top...@ed.ac.uk> wrote:
> I have a set of wave directions in lon lat, Not clear how a direction is given as a lon lat. Do you mean you have a set of vectors, each defined as lon/lat pairs? > but I want to display them > in a UTM type projection. I believe the directions will be distorted, > but I'm not sure by how much. It depends on what you want - if you want the arrow to point where the wind would go after X minutes, then you want the "distortion". If you want the viewer to be able to pick off the geographic heading by eye, then simply convert your lon lat pairs to heading/length pairs and plot them in the axis frame. See http://matplotlib.org/basemap/users/mapcoords.html for how to convert from basemap to the underlying axis frame. In an ideal world your projection would not be over such a large area that any of this matters - if your vector is off by 1 degree, who will be able to tell in a plot? Cheers, Jody -- Jody Klymak http://web.uvic.ca/~jklymak/ ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
