Placing families (structural columns on a line with a specific distance )using C#

[ahmadkhalaf7892]

 

 
hi guys I wanted to ask how can I place a family on a model curve with a specific distance in C# (like the photo above ) I have done before using Dynamo , but my company thinks that it would be better to place them via C#. I just need some help because I have only started using C# two month ago. 
I would love to hear how it is done, or if I can get the method to place families, or load them according to the shapes above. 
Thanks

[jeremy_tammik]

Well, placing the instances is not a problem:

• https://thebuildingcoder.typepad.com/blog/about-the-author.html#5.25.2

Determining equidistant points along a straight line is trivial.

The more complex problem of determining equidistant points along a curve is harder and has been discussed here many times. Here are some hits searching for 'equidistant':

• https://forums.autodesk.com/t5/revit-api-forum/an-vital-question-curve-raw-parameter-and-distances-w...
• https://forums.autodesk.com/t5/revit-api-forum/split-a-curve-in-segments-as-same-as-curve-splitbypoi...
• https://forums.autodesk.com/t5/revit-api-forum/how-to-create-columns-along-2dspline/m-p/5820971
• https://forums.autodesk.com/t5/revit-api-forum/points-along-a-curve/m-p/5719368

Some of those have the exact same goal as you describe.

So, searching can help.

[ahmadkhalaf7892]

Hi Jeremy,
thanks a lot for the sources. They helped me understand how to divide a line/curve in Revit API. However I was unable to know the method for placing a family in a specific location/point.
May I ask what method is used for such a thing ?
thanks

[jeremy_tammik · Accepted solution]

Hmm. That question is answered quite a (large) number of times by the articles in The Building Coder topic group on family instance placement that I pointed out in my previous answer above:

https://thebuildingcoder.typepad.com/blog/about-the-author.html#5.25.2

For an even shorter answer: NewFamilyInstance Method:

https://www.revitapidocs.com/2023/451ee414-cea0-e9bd-227b-c73bc93507dd.htm

[ahmadkhalaf7892]

Thank you very much