On 08/20/2011 02:03 AM, Alexa Villaume wrote: > Hello, > > I'm trying to make a contour plot and I'm running into problems when > specifying the coordinates for the plot. I do, > > #Specify coordinates of the surface > delta0=1.0 > delta1=0.1 > x=np.arange(0.0, 6.0, delta0) > y=np.arange(-1.0,3.0, delta1) > > #Contour the arrays. > plt.contour(x, y, O3, O3Level) > > And I get an error that says, > > "TypeError: Length of x must be number of columns in z, > and length of y must be number of rows." > > I don't understand how I'm supposed to get the coordinates for the plot > that I want and make x and y the same shape as z. Any suggestions?
Contouring requires data on a grid, so your O3 needs to be a 2-D array of z values, and your x and y need to specify the x and y locations of *those* z values. The orientation is such that the first dimension of the z array corresponds to y, and the second corresponds to x. Eric > > Thanks, > Alexa > > > > ------------------------------------------------------------------------------ > Get a FREE DOWNLOAD! and learn more about uberSVN rich system, > user administration capabilities and model configuration. Take > the hassle out of deploying and managing Subversion and the > tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 > > > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users ------------------------------------------------------------------------------ Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
