map_data(find(map_data < -1e9)) = NaN;Null values in maps containing either floating point or double-precision floating point data should translate into NaN values as expected.
[rows cols] = size(map_data) x_range = map_eastern_edge - map_western_edge y_range = map_northern_edge - map_southern_edge ns_res = y_range/rows ew_res = x_range/cols
imagesc(map_data), axis equal, axis tight, colorbar
contourf(map_data, 24), axis ij, axis equal, axis tight, colorbar
Last changed: $Date$