How do I construct a new CFrame rotation with just one axis of my choosing?

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#1

So I understand that you can get a CFrames full rotation by doing this

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But In my case, I just want one of the axis. This is what I’m struggling with. I’m not sure how to construct that

#2 
local Rotation = CFrame.new().Rotation
Rotation.Y -- Y axis
#3

So in my case I am trying to get the rotation of the camera, and I tried this and it returning 0
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#4

Also aswell I tried putting the X Y Z rotation in a CFrame.Angles and it didnt work at all

I have a feeling im supposed to use this, but im not sure what the arguments correlate too
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#5

I think i may be on the right track but im not sure

CFrame.new(0,0,0,camera.CFrame.XVector.X,camera.CFrame.XVector.Y,camera.CFrame.XVector.Z,camera.CFrame.YVector.X, camera.CFrame.YVector.Y, camera.CFrame.YVector.Z, camera.CFrame.ZVector.X, camera.CFrame.ZVector.Y, camera.CFrame.ZVector.Z)
#6

The arguments are part of the CFrame matrix, they have a part in Rotation.
To get the components, this will also give you these “R” values:

local Components. = {workspace.CurrentCamera.CFrame:GetComponents()}
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#7

So for example how would i construct a new cframe rotation with just the Z rotation with that infromation

#8

You can use the ZVector:

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#9

But like how would i construct that in code

#10

Like this?

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#11 
local x, y, z = camera.CFrame:ToOrientation()

Though they will be in radians. If you want them in degrees you can use math.deg(y).

#12

I tried this but its saying the ToOrientation expects a CFrame
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#13

Use a Colon instead of a period.

#14

Oh my mistake, yeah its not working its pretty wonky actually

I tested it with setting it directly to the rotation and then htis method and they are different, its def not rotating correctly

#15

How are you setting the CFrame?

#16

I am multiplying it by a blank position cframe
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#17

I just tried the GetComponents method and that just flings me into the far lands…

and it doesnt make any sense im setting each argument to its corresponding correct thing

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#18

Here is a little example I made were Part1 copies the orientation of Part2.

local RunService = game:GetService("RunService")

local p1 = workspace:WaitForChild("Part1")
local p2 = workspace:WaitForChild("Part2")

RunService.Heartbeat:Connect(function()
	local x, y, z = p2.CFrame:ToOrientation()
	p1.CFrame = CFrame.new(p1.Position) * CFrame.Angles(0, y, 0)
end)
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#19

Try to only set the rotation values, not the position ones.

#20

I’m not sure if this works, but this is a tedious method:

while task.wait() do
	local Components = {workspace.CurrentCamera.CFrame:GetComponents()}
	local PartComponents = {workspace.Part.CFrame:GetComponents()}
	workspace.Part.CFrame = CFrame.new(0,0,0,PartComponents[4],PartComponents[5],PartComponents[6],PartComponents[7],PartComponents[8],PartComponents[9],Components[10],Components[11],Components[12])
end