I tried pcolor, but it seems to have much higher memory usage ... the data set I'm using renders the map using contourf(x,y,z,100) relatively quickly (~10 sec) and with reasonable memory usage, and will imshow(z) even faster (although, as I said, without projection) , but pcolor(x,y,z) fails with a MemoryError after running for ~5 minutes.
On Fri, Sep 5, 2008 at 6:00 AM, Michael Droettboom <[EMAIL PROTECTED]> wrote: > Erik Tollerud wrote: >> >> I've been playing with some of the projections in matplotlib, >> recently, and have some questions/noticed some odd behavior: >> >> 1. Is there any way to activate a projection mode with the pyplot >> interface other than the subplot(111,projection='whatever') method a >> la /examples/api/custom_projection_example.py ? Along these same >> lines, is the projection feature documented in greater detail >> somewhere? About everything I've figured out has come from >> custom_projection_example.py ... >> > > There is some additional documentation in the new documentation here: > > http://matplotlib.sourceforge.net/doc/html/devel/add_new_projection.html >> >> 2. I have a skymap I would like to plot using a particular projection >> - what I've been doing so far is specifying x and y coordinates using >> mgrid and calling contourf(x,y,data,100) to approximate this. But >> what I'd rather do is something like >> imshow(data,extent=[-pi,pi,-pi/2,pi/2]) ... when I call that with a >> projection axis activated, the projection isn't honored - the image >> just appears as a regular square box. Is there any way to get imshow >> to respect the projection? >> > > As Jae-Joon suggested, try pcolor. It will be slower (and there are no > interpolation options), but it should use the custom projection. imshow is > really optimized for uniform, rectilinear images. > > Cheers, > Mike > > -- > Michael Droettboom > Science Software Branch > Operations and Engineering Division > Space Telescope Science Institute > Operated by AURA for NASA > > -- Erik Tollerud Graduate Student Center For Cosmology Department of Physics and Astronomy 2142 Frederick Reines Hall University of California, Irvine Office Phone: (949)824-2587 Cell: (651)307-9409 [EMAIL PROTECTED] ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
