topic Transform face in Revit API Forum

Transform face

miguel_tamaraMXF93 — Sat, 04 May 2024 14:53:05 GMT

I want to know if I can transform a Face using a Transform instance:

public Face TransformFace(Face face) { var feetToMeters = 0.3048; Transform scaleTransform = Transform.Identity; scaleTransform.set_Basis(0, scaleTransform.BasisX.Multiply(feetToMeters)); scaleTransform.set_Basis(1, scaleTransform.BasisY.Multiply(feetToMeters)); scaleTransform.set_Basis(2, scaleTransform.BasisZ.Multiply(feetToMeters)); // Transform the face }

thanks in advance.

Re: Transform face

Moustafa_K — Sun, 05 May 2024 06:39:49 GMT

I think you need to transform the whole solid not the face. and then you can get a transformed face. you can achieve that using the static SolidUtils

var transformedSolid = SolidUtils.CreateTransformed(mySolid, mytransform);

then you can get the face from the transformed solid.

Re: Transform face

miguel_tamaraMXF93 — Wed, 08 May 2024 20:19:40 GMT

Hello Moustafa,

Thank you for replying! Yes, that works, but let me explain.

I get the face using PickObject. And as you may know, getting the element geometry solids, then finding the solid with the face, transforming it, etc etc, seems more like a workaround, not a straightforward solution.

I wish there was something like a FaceUtils in the API.

In any case, thanks for your help!

Re: Transform face

Moustafa_K — Thu, 09 May 2024 05:03:39 GMT

So glad that this working around deleviers you what you are after. A straight forwarded implementation is a golden wish for every developer. Till then the answer will mostly be in the working around, and how smartly we use the available tools. 🙂