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## What is the best way to get the anchor point to the center of a line in Video Copilot for Saber?

New Here ,
Jul 06, 2020

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I'm trying to make this saber spin from the center while constantly having the anchor point between the two points (Core Start and Core End)

I prefer having to run an expression to do this but if there's another way please let me know!

PS: I'm using this with this current expression:

```x1 = effect("Saber")("Core Start")[0]
x2 = effect("Saber")("Core Start")[1]

y1 = effect("Saber")("Core End")[0]
y2 = effect("Saber")("Core End")[1]

transform.anchorPoint([x1/y1], [x2/y2])```

With error: "undefined value used in expression (could be an out of range array subscript )"

TOPICS
Error or problem, Expressions, How to

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## What is the best way to get the anchor point to the center of a line in Video Copilot for Saber?

New Here ,
Jul 06, 2020

Copied

I'm trying to make this saber spin from the center while constantly having the anchor point between the two points (Core Start and Core End)

I prefer having to run an expression to do this but if there's another way please let me know!

PS: I'm using this with this current expression:

```x1 = effect("Saber")("Core Start")[0]
x2 = effect("Saber")("Core Start")[1]

y1 = effect("Saber")("Core End")[0]
y2 = effect("Saber")("Core End")[1]

transform.anchorPoint([x1/y1], [x2/y2])```

With error: "undefined value used in expression (could be an out of range array subscript )"

TOPICS
Error or problem, Expressions, How to

Views

64

Likes

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Community Guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
Jul 06, 2020 0
2 Replies 2
Most Valuable Participant ,
Jul 06, 2020

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There is no need to address the property stream name. Those are read-only. Simply writing [x1/y1,x2/y2] would be enough.

Mylenium

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Jul 06, 2020 1
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New Here ,
Jul 07, 2020