When creating a dynamic cross section view, you can select the alignment (any alignment, in fact) or the corridor (by selecting the handles, among other ways).
When you select an alignment you also specify the leftward and rightward limits of the cross section along with the interval between sections that you want to see. In order to adjust the interval, I think you have to create a fresh cross section view.
When you select the corridor element, it steps through according to wherever the template drop created the dynamic cross sections. This will skip any areas where there is no template drop, such as bridges (when constructed as an entirely separate set of elements instead of a template drop) or areas where a separate corridor may handle things.
There are reasons to prefer one over the other, varying based on what the user is doing at a given moment.
I'd like to see an option that would allow the user to flipflop between these options. Instead of creating a fresh dynamic section view to switch between them (or to change the frequency in the case of an alignment selection), the user might be able to scan through with these functional options:
- scan through template drops only
- scan according to generated cross sections
- scan according to a user-defined interval
- scan throughout the alignment: according to generated cross sections where a template drop generates them, and where it doesn't, use user-defined interval.
In fact these could be whittled down to these interface options:
- frequency within template drops (which would necessarily require a corridor assignment)
- all generated cross sections
- skip to every xth generated cross section
- every y feet
- frequency outside template drops (applied when a corridor was assigned to the view)
- every z feet
- none
- frequency outside template drops (applied when a corridor was not assigned to the view)
In all cases the preference should be persistent at least within each design file if not a project- or user-wide setting.
