hello. I have a matlab skeleton provided because i want to model a distribution with a circular geometry. all in all, i want the 3d graph of the code to be some type of cylinder. This is the code: % flat step condition for ii=1:nHi, for jj=1:nHj, if (X(ii)/R_P)<1 & (Y(ii)/R_P)<1, h(ii,jj)=h_init+h_step; else, h(ii,jj)=h_init; end end end nHi is the maximum size of nodes in X direction and nHj is the maximum size in Y direction while R_P is the radius of the circle. I am struggling with this code because when I execute this, it only appears with a rectangular graph, instead of a circle-ish, when viewed from the top. what the code is trying to say is, if node is less than the diameter (x or y node), thickness is initial+step else, thickness is initial. Any tips will be greatly appreciated.