| Re: [eigen] Rotations and unit vectors |
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On 07.05.2013 15:23, Gael Guennebaud wrote:
We already have to many of such flags for that a library that claims
to be easy to use!
I don't think it would affect the easy-to-use-ness. But I agree that we
should not exaggerate with flags.
Another possibility would be to check for unity every time the object is
used
that's what I suggested.
Yes, indeed. Sorry I missed that.
Perhaps a reasonable solution would be to ignore mutating accessors
and use a relatively high tolerance to only detect clearly
pathological cases. That would probably be enough to detect 90% of the
bad uses.
I agree that's a good compromise. E.g. the squared norm of uniform
[0,1]^3 distributed vectors only lays within [1-1/16, 1+1/16] with
probability ~10%.
We still need to decide whether we want the tolerance to be customizable
(via another flag) or hard-code a magic number and what the (default)
value should be.
Christoph
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Dipl.-Inf., Dipl.-Math. Christoph Hertzberg
Cartesium 0.049
Universität Bremen
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