Connect transition to another fitting and force it to regenerate

[adam.krug]

I have a 50 mm x 110 mm transition, 40 mm elbow and 110 mm pipe. When I connect all with

connector.ConnectTo(anotherConnector)

Everything gets connected but the trouble is that the transition family won't regenerate until I e.g. manually drag a pipe a little bit, only then it changes to 40 x 110 mm transition.

Is there any simple way to achieve the regeration via API?

PS:

doc.Regenerate() 

won't do the job

I know I could instead delete my transition and create a new one using 

Document.NewTransitionFitting()

 but I hoped I could skip such a hassle.

[ricaun]

Hello @adam.krug 

Only using the ConnectTo does not make Revit create the Elbow you need create between the 2 connectors.

Using the NewElbowFitting method. Something like this:

connector.ConnectTo(anotherConnector)
document.Create.NewElbowFitting(connector, anotherConnector);

This gonna force Revit to create the Elbow.

See yaa!

[adam.krug]

hello @ricaun ,

I want to connect and regenerate/recalculate an existing transition... With existing bend on one side, and existing pipe on another side.

[ricaun]

I miss understood what you mean with the method NewTransitionFitting.

I believe is not possible to regenerate the document with the two connectors connected and make the Fitting appear automatically.

You need to use the Fitting methods. I supposed this gonna work.

connector.ConnectTo(anotherConnector)
document.Create.NewTransitionFitting(connector, anotherConnector);

See yaa

[Kevin.Lawson.PE]

Yes, this was my finding as well.  You have to manually place the transition.  Get the midpoint between the two connectors you are trying to transition to/from, place a transition there, align the connectors, then connect.  

[adam.krug]

that's not good news but thanks @Kevin.Lawson.PE  & @ricaun  .