[Matplotlib-users] ImportError: cannot import name rcParams

2008-04-25 Thread Rich Fought
Hi, I'm getting the following error when trying to create a plot with matplotlib. I am using matplotlib-0.91.2 on CentOS 4 with python 2.3. We are running it with mod_python and Apache in a web service configuration. File

[Matplotlib-users] Prism colormap

2008-04-07 Thread Rich Fought
The prism colormap repeats the same pattern over and over instead of spreading itself over the plotted data range in a pcolor plot. Is this expected behavior? Simply add prism() to pcolor_demo.py to see what I am talking about. Thanks, Rich

[Matplotlib-users] Basemap: Labeling parallels in polar stereographic projections

2008-03-18 Thread Rich Fought
Hi, When using north/south polar stereographic projections from basemap, how can I get labels to show up on the parallels when none of them intersect a plot edge? Thanks, Rich - This SF.net email is sponsored by:

Re: [Matplotlib-users] Basemap: Labeling parallels in polar stereographic projections

2008-03-18 Thread Rich Fought
Rich: You'll have to do it manually with the axes text method. The drawparallels method can only label them where they intersect the edge of the map. Thanks Jeff, that's what I was afraid of. New question: when adding axis labels (xlabel, ylabel) and figure title, these overlap basemap

Re: [Matplotlib-users] Transforms

2008-03-17 Thread Rich Fought
Rich Fought wrote: I'm plotting some grid data using pcolor, and trying to get canvas pixel locations of data points using the ax.transData.xy_tup() method. I am saving these figures to PNG files using the default Agg backend. When I open these images up in Gimp and check the pixel

Re: [Matplotlib-users] Transforms

2008-03-17 Thread Rich Fought
Eric Firing wrote: The transforms can be modified at drawing time, so you need to get the pixel locations after the plot has been drawn. Are you doing this? Eric, Thank you! I put the transforms after savefig() and it works like a champ now. Rich

[Matplotlib-users] Transforms

2008-03-13 Thread Rich Fought
I'm plotting some grid data using pcolor, and trying to get canvas pixel locations of data points using the ax.transData.xy_tup() method. I am saving these figures to PNG files using the default Agg backend. When I open these images up in Gimp and check the pixel locations, the X pixel

[Matplotlib-users] Basemap, Mercator Projection and pcolor

2008-03-11 Thread Rich Fought
Hi, I've successfully plotted gridded data on a basemap cyl projection using pcolor: mp = Basemap(projection=cyl, resolution=l, llcrnrlon=0.0, urcrnrlon=30.0, llcrnrlat=-5.0, urcrnrlat=5.0) pc = mp.pcolor(X, Y, zvalsm, cmap=cm.jet) However, if I simply I change the projection type to merc,

Re: [Matplotlib-users] Basemap, Mercator Projection and pcolor

2008-03-11 Thread Rich Fought
Rich: What are X and Y set to? They should be the map projection coorindates of the grid. If they are latitudes and longitudes, this will work for 'cyl' but not 'merc'. For 'merc', you must convert the lats and lons to x and y using x, y = mp(lon, lat) -Jeff Thanks Jeff, that did