Formula Help

[STHRevit]

Hi all,

I have done a search here but can't really find what I am looking for.
This is my issue.
I am creating a louvre pergola/patio family, which is simple enough. The frame and guttering is one family and the louvre blade is a separate family, nested into the frame family.

What I want to do is array the blades to fill in the internal opening of the frame and when the frame width is increased, add another louvre.

I have bee playing with the formula for about 1hr now and it is driving me nuts. Just can't get it to work. Can anyone provide me with a formula to do this?

[mruehr]

considering you may want to have a start&end offset it should be something like this

Array No = (Width - (Start Offset*2))/Louvre Distance

[STHRevit]

Thanks Michael,

I will look into it and see if I can get it to work for me.

[jamesgchambers]

If that formula doesn't work, it would be helpful if you could post the formula you were trying to get to work.

Also, you'll want to make sure you're arraying by "Last" and not "Second."

[STHRevit]

OK,
Got it to work. Formula is below.

((Panel Width - (2 * 122 mm)) / 205 mm) + 1

Thanks for your help Michael. Much appreciated.
122 is the end offset
105 is the width of the louvre blade.