Triangulations as polylines
Function name:
You use this function to display the line of intersection between any triangles in the current viewport and the active plane. When viewing the triangles as polylines the triangle edges and faces are hidden.
Usually, you would use this function when the triangulations are displayed as triangles, and you want to see the line where the triangles intersect the active plane.
To run this function: On the Planes panel, click the Triangulations as polylines button; or, in the Function Chooser, type TRIANGULATIONS AS POLYLINES, and press ENTER.
Output
Displays the line of intersection of any triangles in the current viewport and the active plane.