Distance point in vector

[sonicer]

I have point A[x,y,z ] and vector u=x,y,z and distance l=400...how can I get new point B[x, y, z] ??

The point B is in direction u and distance from A l=400..

Is there is revit api some function ..?

thx..

[jeremytammik]

Dear Sonicer,

I would suggest you work trough some of the Revit API getting started material before posting many questions that are explained there:

http://thebuildingcoder.typepad.com/blog/about-the-author.html#2

To answer this specific one:

Yes, the Revit API does provide basic point and vector operations such as addition, subtraction, multiplication, etc.

  B = A + L * U

By the way, here is a recent answer to a similar basic geometric query on Revit XYZ operations:

http://thebuildingcoder.typepad.com/blog/2017/01/distances-switches-kiss-ing-and-a-dino.html#2

Best regards,

Jeremy