Where is the tangent value in Design Profiles?

[joantopo]

Hi.

I am looking for the tangent property (well, in Spain we call it "tangente" ) the length showed in yellow:

Actually, there are 2 values, tangent IN  and tangent OUT, although in ParabolaSymmetric or Circular, both are equals. (and they are different in ProfileEntityType.ParabolaAsymmetric).

I don´t find this value neither in API Civil 3D 2015 or in the profile table (showed in the picture).

I know that I can calculate it with  slope and (PVI_Station - StartStation(parabola) )

Thanks.

[tyronebk · Accepted solution]

I'm not sure why those properties are not calculated, but I assume it's because they're not typically required. I've never seen them displayed nor has anyone asked for them. But as you said, they are easily calculated, so a couple extension methods and a couple expressions would easily satisfy what you are asking for.

Note that there is a wrong assumption (or a simply mis-statement) in your post. The start and end tangent lengths are not equal to each other for symmetric curves (unless the tangent slopes are mirrored) but the station length is equal.

[joantopo]

OK.

You are right. I didn´t check that.

For my reports, I need the "horizontal tangent" . In that sample: 16.2758, so I only have to calculate the rest. (StationPVI-StartStationParabola)

I was surprised that those values didn´t appear in the data table.

Thanks.