Pipe Diameter issue on revit api

[Anonymous]

Hi All,

I got some issue on pipe diameter measurement. After creting pipe, the diameter value that shown in option bar is quite different from the value that i set in c# code (seee in following figure)

here is my revit api code:

  Pipe pipe = Pipe.Create(doc, domesticHotWaterSystemType.Id, firstPipeType.Id, level.Id, p0, p1);
                Parameter parameter = pipe.get_Parameter(BuiltInParameter.RBS_PIPE_DIAMETER_PARAM);
                parameter.Set(1);

According to the picture, the diameter that measured in display is 305mm but the option always shows 200mm

can u guys enlighten me how to do it? quite noob in revit api.

Best Rgds,

Mr.Naing

[Anonymous]

I had the same issue previously. When I create a pipe with 300 dia, the resulting one was 350...
I dos not find a direct solution, that I did was after creating the pipe with the wrong diameter, once closed the transaction, I opened other transaction and set the correct diameter. Doing it trough different transactions the pipe gets the correct size

[tuuletin]

What values are assigned to this pipe in MEP-system properties?

Show the screenshot of pipe dimension parameters...

[Charles.Piro]

Hi,

you want create a new pipe with a diameter equal to 304.8mm but this diameter doesn't exist in Revit when you start a new project. You must first create diameter in Mechanical Settings :

[Anonymous]

Anyway I have had the issue having created the correct diameter in the Mech settings...

[Charles.Piro]

If you have created the dimension in Mechanical settings (attention with the "Material") and in your routing of the pipe you have choosen the good "Material", it's ok.

Look this (with the same code of thannaingoo1985):

[Anonymous]

Pipe pipe = Pipe.Create(doc, domesticHotWaterSystemType.Id, firstPipeType.Id, level.Id, p0, p1);
                Parameter parameter = newPipe.LookupParameter("Diameter");
                parameter.SetValueString("400.0 mm");