Thanks Jeff! That is just wonderful! No need for a non-spherical earth model for me.
Again, thanks! Rob Jeff Whitaker wrote: > > Rob Frohne wrote: >> Hi Jeff, >> >> I am an amateur radio operator, and I am writing a little application to >> display where the major lobe of my antenna is pointing. I can control >> the >> direction of my antenna with the computer, and it would be nice to have a >> display of the whole world, as well as circles representing how far the >> station I am talking to is, and radial lines showing the bearings. I'd >> like >> to show the bearings along the edge of the map. For this type of map, a >> circle is a much better boundary than a square, but if it has to be a >> square, we should be able to make it a square bounding the circle, not >> the >> other way around. I think I can even plot the station's location given >> data >> I get from the Internet using this software. I am just learning Python, >> but >> it appears to be ideal for what I'm doing. >> >> Right now I'm trying to figure out how to get the Eclipse IDE I am trying >> out to show me the source code for Basemap. :-) >> >> Thanks for the expert help! >> >> Rob >> > > Rob: I've updated basemap in SVN so that if neither a width/height or > corner lat/lons are provided, the whole world is plotted in a circle > with projection='aeqd'. If you can access SVN please try it out and let > me know how it works for you. If not, I can provide you with a tarball. > > The full-disk aeqd will not work right now with ellipsoids, only for > perfect spheres. Is that a problem for you? > > -Jeff >> Jeff Whitaker wrote: >> >>> Rob Frohne wrote: >>> >>>> Hi, >>>> >>>> I think I am running into the same thing John is here. When you want >>>> to >>>> display the whole earth in 'aeqd' mode, the projection needs to be onto >>>> a >>>> circle. As it is, what is plotted is a square that just fits inside >>>> the >>>> circle I want. Here is a link to a photo of the kind of projection I >>>> want. >>>> >>>> http://www.wm7d.net/az_proj/images/lon_anim_shaded.gif >>>> >>>> Is there a way to get the whole earth plotted with 'aeqd'? >>>> >>>> >>> Rob: No, you can't get the whole earth - the most you can get is the >>> cube that fits within it. I can look into adding that functionality for >>> the aeqd projection if there's a real use case. Note that there are >>> other whole-earth projections available (mollweide, vandergrinten, >>> robinson, sinuisoidal etc). These projections have much less distortion >>> far away from the center of the map than the azimuthal equidistant >>> does. Why do you want to use aeqd to plot the whole globe? >>> >>> -Jeff >>> >>>> Thanks, >>>> >>>> Rob >>>> >>>> >>> >>>> John [H2O] wrote: >>>> >>>> >>>>> Hello, >>>>> >>>>> I'm creating a web application that will take user input from a >>>>> javascript >>>>> map to give me bounding coordinates (i.e. urcrnrlat, urcrnrlon, >>>>> llcrnrlat, >>>>> llcrnrlon) and possibly a switch for polar projection. Other than that >>>>> I >>>>> have no further information. Which projection is the most suitable to >>>>> handle anything from a 'global' plot to a zoom say over a state? I >>>>> don't >>>>> see the zoom being too tight, but global projections are likely. I >>>>> personally prefer Equal Area, hence right now I'm working with 'aeqd', >>>>> but >>>>> I seem to have problems if the plot is global with that projection. >>>>> >>>>> Just looking for advice, opinions, and ideally examples if anyone has >>>>> created a similar function / module to use in a web environment. >>>>> >>>>> Thanks! >>>>> -john >>>>> >>>>> >>>>> >>>> >>>> >>> -- >>> Jeffrey S. Whitaker Phone : (303)497-6313 >>> Meteorologist FAX : (303)497-6449 >>> NOAA/OAR/PSD R/PSD1 Email : jeffrey.s.whita...@noaa.gov >>> 325 Broadway Office : Skaggs Research Cntr 1D-113 >>> Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg >>> >>> >>> ------------------------------------------------------------------------------ >>> _______________________________________________ >>> Matplotlib-users mailing list >>> Matplotlib-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users >>> >>> >>> >> >> > > > ------------------------------------------------------------------------------ > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > -- View this message in context: http://www.nabble.com/dynamic-basemap-tp20121594p21234584.html Sent from the matplotlib - users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
