Is there a way to construct a CFrame based off the position and orientation of two pre-existing parts?

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#1

Hello, I know this is an odd question to ask, but is there some way a CFrame can be generated based off the position and orientation of two different already-existing parts in workspace?

Based on what I can find, the “Position” of a CFrame is set to read-only, so I can’t just take the CFrame of the first part and change the position/orientation to the second part. This is further complicated by the fact there is no CFrame.new() constructor that takes Position and Orientation Vector3s; the closest there is would be CFrame.new(origin,lookAt).

CFrame.LookAt mentioned above isn’t my goal, otherwise I wouldn’t have made this thread. I don’t want a CFrame from an origin point (first part’s position) oriented to “look at” another point (second point’s position), I want to generate a CFrame using the first part’s position and the second part’s orientation.

I know my wording may be slightly confusing, but I’m trying my best to be direct and straightforward so others can understand the issue I’m having and (hopefully) come up with a way to solve it.

I’ll be awaiting responses, and thanks for any help you can provide.
–Catz

#2

simple math, CFrame + Vector3

local cf = partB.CFrame.Rotation + partA.CFrame.Position

partB is the rotation, partA is the position

#3

That doesn’t seem to have worked, code threw an error when I attempted to add the two values.
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I’m trying basically the exact thing you suggested, the only difference being that the parts are named differently.

#4

are you using the correct values? The error is asking for a Vector3, yet .Position IS a Vector3.

#5

Yea, I’m an idiot, accidentally used .Rotation instead of .Position somehow. Testing it again

#6

Yep, everything seems to be working now. Thanks for the assist.