Familyinstance.handorientation node for door handing

Hello everyone! I am new to dynamo and try to do a door handing .dyn. I found a way to do it from a German website using the node ‘familyinstance.handorientation’. But I searched and couldn’t find it. There is only ‘familyinstance.facingorientation’. Is it a custom or a built in node? Thanks

you mean that?


I’m working on replicate this dyn. to determine the door handing but i can’t find the node familyinstance.handorientation…

we integraded it in the family with a Boolen

DIN_L/DIN_R so formula is not(DIN_R)

Sorry I am not familiar with coding/formula. Do you know the node ‘familyinstance.handorientation’ to get the handing orientation of the family? I can’t find it in the built in. or can I use other nodes together to do the same job?

it is just a little pit of coding!

and some modelrules like " do not mirror walls and doors…"


Handflipping is not related to any parameter :confused:

2021-05-20_16h53_55