Hello, I'll try to make myself clear with a simple example: consider a circle in 2D Cartesian coordinates (x,y) (my domain). On that circle, for each (x,y) coordinate, you want to plot the function
f(x,y)=x+y How would you do that in pylab? perhaps I should have called this a surface plot (as if I was plotting a temperature field on a tube cross-section) This is easy to do in pylab if the domain is e.g. a square, but I do not know how to handle the simple case I described above conveniently. Many thanks Lorenzo 2009/4/2 Jae-Joon Lee <lee.j.j...@gmail.com>: > On Wed, Apr 1, 2009 at 6:50 AM, Lorenzo Isella <lorenzo.ise...@gmail.com> > wrote: >> Now, I would like to plot exactly the same function but on a circular >> domain (circle of radius 1 centered at (0,0)). > > You have an image with x,y spanning from -1 to 1. How do you transform > your x,y coordinate to r, theta? Or, x,y in your example actually > corresponds to r, theta in polar coordinate? > In that case, is it simply that you want to your image centered at > (0,0)? Use the extent keyword of imshow command. > > http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.imshow > > It is not clear what you want. > Regards, > > -JJ > -- Life is what happens to you while you're busy making other plans. ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
