A typical cross-section plot uses a Cut Line 2D data set (which you add in the Data Sets branch), which defines a straight line (or set of parallel lines) in a 2D geometry, and a Line Graph in a 1D Plot Group, which uses the Cut Line 2D data set as its data input. You can use the same Cut Line data set for multiple cross-section plots of various quantities along the line that the data set defines, and you can create several Cut Line data sets to plot quantities along different lines of interest.

You can also interactively create cross-section line and surface plots using a combination of cross-section toolbar buttons and clicking the geometry. When you use the cross-section toolbar, plot groups and data sets are automatically added and updated in the Model Builder whenever any line or plane is changed. See Creating Interactive 2D Cross-Section Line Plots, Creating Interactive 3D Cross-Section Line Plots, and Creating Interactive 3D Cross-Section Surface Plots.