Use an Edge 2D () or an Edge 3D () dataset to plot and evaluate a value along an edge (boundary) in 2D or an edge in 3D. Create a line graph or any other plot type in a 1D Plot Group to plot data along an edge using one of these datasets. Use an Edge 2D dataset to plot values on boundaries (edges) in a 2D geometry. Use an Edge 3D dataset to plot values on edges in a 3D geometry.