Documentation for CFrame's XVector/YVector/ZVector properties is incorrect

[AstroCode (Ella)]

The below diagram and documentation indicate that the XVector, YVector, and ZVector properties correspond to the rows of the CFrame rotation matrix.

However, this is not true: XVector, YVector, and ZVector correspond to the columns of the rotation matrix. In particular, XVector is RightVector, YVector is UpVector, and ZVector is -LookVector. This can be confirmed with the following code, which prints true three times.

local CF = CFrame.Angles(math.random(), math.random(), math.random())
print(CF.XVector == CF.RightVector)
print(CF.YVector == CF.UpVector)
print(CF.ZVector == -CF.LookVector)

Page URL: https://create.roblox.com/docs/reference/engine/datatypes/CFrame

[thirdtakeonit]

Thanks for the report! We’ve filed a ticket in our internal database.

[EndlessSashimi]

Thanks so much, AstroCode. I’ve made some updates to the CFrame content to indicate the equivalence of those properties, and with any luck, we’ll investigate a deeper rewrite going forward – the entire page could use some attention.