A profile object is the child of a horizontal alignment. The horizontal alignment must exist to define the route of a profile across the terrain.
If you edit a horizontal alignment after creating dynamic surface profiles along its length, the profiles automatically change.
A profile view object is also dependent on a horizontal alignment. The length of the alignment can control the horizontal extents of the profile view grid, and the alignment stationing controls the annotation of horizontal axes. The vertical extents of the profile view have an optional relationship with one of the profiles in the profile view. You can set the vertical extents to a fixed value, but normally they are dynamically linked to one of the profiles. The dynamic link ensures that the profile view always has several grid lines above and below the profiles.
A profile view can contain projected objects such as points, feature lines, or AutoCAD blocks. These objects exist in plan view and are projected into a profile view so that you can visualize them in relation to a profile.