[Matplotlib-users] Basemap, Mercator Projection and pcolor

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 m

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

> 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,

[Matplotlib-users] Transforms

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 locat

Re: [Matplotlib-users] Transforms

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 image

Re: [Matplotlib-users] Transforms

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] Basemap: Labeling parallels in polar stereographic projections

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: Microsoft

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

> 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 basem

[Matplotlib-users] Prism colormap

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] ImportError: cannot import name rcParams

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 "/usr/lib/python2.3/site-packages/matplotlib-0.91.2_r0-py2.3-linux-i686.eg