Can DiracDelta Functions Be Plotted and Transformed in 2D?

[10krunner]

I'm trying to plot the function f(x,y) = DiracDelta[r-r0]and then take the Fourier transform.

Is this a radial delta function? I'm having trouble understanding the significance of this "function" .

Thanks!

 

[meopemuk]

I'm trying to plot the function f(x,y) = DiracDelta[y-x tan (theta)] and then take the 2D Fourier transform.

Try using the fact that delta function is non-zero only if its argument is zero.

I am not sure what definition of theta you are using, but in standard radial coordinates
tan(theta) = y/x.

Eugene.