tmetatree is a control to show hierarchical information as a graphs tree. a user can select the desired node using mouse. it looks like a flat projection of a tree on an elliptical parabolic surface.
surface modeler is intended for modeling curves and surfaces of the high order of continuity with smooth change of curvature. with surface modeler you’ll be able to create first-class objects with curvilinear surfaces.
visual data is the right choice for scientific data visualization, can be used to create a graph of 2d, 3d, 4d regular or irregular data such as color map, contour map, vector plot, surface, delaunay triangle net, 3d contour map, 4d slice plot.