topic Re: Creating True North arrow showing angle from North in Revit Architecture Forum

Creating True North arrow showing angle from North

Sahay_R — Mon, 06 Feb 2017 21:37:40 GMT

Good afternoon,

I have been building a True North arrow, with rotation parameters. Currently I have it set where the tag displays the angle going East from Project North (up). I had tried to add it to the View Title with the objective of changing the arrow rotation as needed, but that didn't work. So now my plan is to just load the arrow to my template where it can be used as needed especially by the Landscape guys.

My concern is the True North angles that are going West. Would it be acceptable to display True North values between 0-360? If not, would there be a formula on the lines of If Rotation > 180, then Label Value = 360 - Rotation? Would I need another Label which displays the angle value as W? As you can see, my current Label has a suffix of E, so it displays all angle as going East. Should I get rid of the suffix?

Re: Creating True North arrow showing angle from North

rudi.roux — Mon, 06 Feb 2017 21:52:38 GMT

Hi @Sahay_R,

Have a look at THIS POST which served as a solution for another community member regarding "Smart North Arrows"...

I hope this helps!

Re: Creating True North arrow showing angle from North

Sahay_R — Mon, 06 Feb 2017 22:02:00 GMT

Uuuhhhh Rudi - that post was for this very same problem! Now I am trying to take this arrow beyond that level.....

Re: Creating True North arrow showing angle from North

ToanDN — Mon, 06 Feb 2017 22:05:15 GMT

Can you upload the family?

Re: Creating True North arrow showing angle from North

rudi.roux — Mon, 06 Feb 2017 22:06:10 GMT

hahahaha... Apologies, only noticed it now. It's a bit late now (hence my mess-up), but I'll have a look tomorrow. Share the family?

Re: Creating True North arrow showing angle from North

RDAOU — Mon, 06 Feb 2017 22:14:35 GMT

@Sahay_R

I didnt understand what the question is lol ... if it is acceptable to display angel from true north 270 degrees? I would say yes there is nothing which stands against that...

If you want to roung it always to an angle between 0 and 180 it is also possible using an intermediate parameter which controls the angle using an if statement; example... Angle B = if(Angle A>180, 380 - Angle A, Angle A)

But I personally dont see any issues with an angle 227! well as long as the tag won't end up dispalying 3477 degrees lol ie: 227

PS: And btw, project north is the simplest thing which should come to ones mind and it shouldn't really be complicated and automated or smart or whatever!! don't make your life too hard on a generic annotation tag 🙂

Re: Creating True North arrow showing angle from North

Sahay_R — Mon, 06 Feb 2017 22:20:32 GMT

No problems, Rudi!

Absolutely, gentlemen!

Once again, it could go without displaying the angles, but why not push it a little further? LOL!!

Re: Creating True North arrow showing angle from North

Alfredo_Medina — Wed, 08 Feb 2017 13:44:58 GMT

I think that showing the angle in the North symbol is not necessary. The method that I described in that other post, about copy-pasting the value of the angle from the Project Base Point into the Rotation angle of the North Symbol family provides an accurate rotation for the arrow in the symbol, which can be saved in the type that is used in floor plan views. For the site plan, you could create another type, with the rotation angle as zero.