New to add delta label in profile view at grade breaks

[rlarance]

Can anyone tell me how to add the delta to a label style at grade breaks in the profile view?  Do I need to create an expression to accomplish this?

Thanks

[sboon]

Do you want the delta as an angle, or would the grade change parameter work for you? 

Grade change is one of the parameters that you can add to a profile label.

[rlarance]

Delta as an angle.  I'm guessing I will need to create an expression using grade in and grade out?

[rlarance]

had to write an expression

ATAN({Grade In})-ATAN({Grade Out})

seems to work.

[sboon]

Watch out for grade changes where your profile goes through the horizontal.  You could find that it's switching between positive and negative values.

I did it using  ATAN(ABS({Grade Change}))

It seems to almost get it right but when I check it by drawing some angular dimensions on the profile I am noticing small errors.  The error seems to get worse as the amount of grade change increases - for example at a delta of 88 degrees the error is 0.3

[Anonymous]

Change the block name for the marker to AeccTick Triangle for the Grade Break in your Profile style.  See attached, Is this what you are looking for?