FDTD grid - odd number of samples
I'm looking for a way to force the FDTD grid to have an odd number of samples in a particular grid, without requiring symmetric/anti-symmetric boundary conditions in that axis, and using a non-uniform grid.
I have a 3D model with different elements, some mesh-override elements. the center coordinate in the y-axis is 0 (equal span for positive and negative y values), are and usually the grid points don't include the middle point (y=0).
Is there a way to force the grid to include y=0 coordinate?