Viraj Vajratkar wrote: > > > On 7/3/07, *Jeff Whitaker* <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Michael Newman wrote: > > My understanding is the "contour" method only handles plots of > > functions, e.g. f(x,y) = z, and not discrete points. I tried looking > > into this weeks ago, and couldn't find a way to handle discrete > points. > > > > I'd love to be able to do Kriging or Inverse Distance Weighting > contour > > lines on XY points I have of pollution concentrations at various > monitors... > > > > > Michael: There are three different methods for doing this > described at > > http://www.scipy.org/Cookbook/Matplotlib/Gridding_irregularly_spaced_data > > -Jeff > > -- > Jeffrey S. Whitaker Phone : (303)497-6313 > NOAA/OAR/CDC R/PSD1 FAX : (303)497-6449 > 325 Broadway Boulder, CO, USA 80305-3328 > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > <http://sourceforge.net/powerbar/db2/> > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > <mailto:Matplotlib-users@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > hey guys... i got it... u can use contour(x,y,z)... as in > x=load('urfile1.dat'), y=load('urfile2.dat), z=load('urfile3.dat > ').... and then type out the above.... for details about the > parameters x,y,z see... . > http://www.scilab.org/product/man-eng/graphics/contour.htm .... so > matplotlib CAN plot a contour from discrete points!!!.... ive tried it > and it works... Viraj: That only works because x and y describe a rectangular grid. If x and y described irregularly spaced points, you would need to grid the data first using one of the methods described on that Cookbook page.
-Jeff -- Jeffrey S. Whitaker Phone : (303)497-6313 NOAA/OAR/CDC R/PSD1 FAX : (303)497-6449 325 Broadway Boulder, CO, USA 80305-3328 ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
