dimforge / dimforge/nalgebra

Similarity scaling private

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Description

Why is the scaling part of a Similarity not public? I don't see any good reason for that.

https://github.com/dimforge/nalgebra/blob/a91e3b0d8917f3fab8486d45857119af1fd37ecd/src/geometry/similarity.rs#L53-L57

The `set_scaling` method just asserts that it is not zero, but if that has to be enforced even when allowing public access to the scaling field, then it might be better to do this via some type that can only be constructed with non-zero values.

https://github.com/dimforge/nalgebra/blob/a91e3b0d8917f3fab8486d45857119af1fd37ecd/src/geometry/similarity.rs#L89-L96

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