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Get a Part's Relative Position

Get a Part's Relative Position

Jun 29 2018, 4:51 PM PST

Problem

You want to know where something is relative to where something else is.

Solution

Use the CFrame:toObjectSpace method.

Workspace.Part.CFrame:toObjectSpace(Workspace.Part2.CFrame)

Discussion

We want to find how “Part2” is positioned relative to “Part”. We use “Part” as the origin and convert the CFrame of “Part2” to be relative to the CFrame of “Part”. This leaves us with how “Part2” is relative to “Part”. What can we do with this information? We can find the distance between the two like so:

Workspace.Part.CFrame:toObjectSpace(Workspace.Part2.CFrame).p.magnitude

We use the position component of the CFrame and get its length (using the magnitude property). Since we’re using relative positioning we are left we just how the two are related. We could also get the length between the two like so:

(Workspace.Part.Position - Workspace.Part2.position).magnitude

Using subtraction we can also get relative positioning.

Tags:
  • positioning
  • part
  • cframe