Dear Users, I am currently trying to map a grid of unstructured topography on 3D in python. The data which I am using is in 1d, where another x and y are in 1d. I see that the need for plot_surface is 2d X,Y,Z. I wonder if there is a way I can transform the data to plot for view in topography, or the plot_surface or alternative functions can be used to simply apply the 1d arrays? PS. Below is the large grid that overlays on the unstructured grid. yours, Jinbo