[Bf-python] 3DVec * 4x4Matrix issue

[Ken Hughes]

No reason, I'll commit it.

Ken

Campbell Barton wrote:
> Any reason not to commit this change now the CVS's unfrozen
> 
> Ken Hughes wrote:
>> Campbell Barton wrote:
>>> Just tried and assign vec.w=1  to a 3d matrix dosent work.
>>> Aside from that, converting to a 4d vec isnt ideal because it wont 
>>> work for wrapped vecs.
>>>
>>> Would changing the functionality to be like this be acceptable ( in C 
>>> though )
>>>
>>> mtx= ob.matrixWorld
>>> vec= vec*mtx
>>> vec= vec+mtx.translationPart()
>>
>> The current code always makes a copy of the vector and is checking for 
>> a 3d vect * 4x4 matrix, but then sets vecCopy[3]=0.0.  I just changed 
>> this to VecCopy[3]=1.0 and everything's fine.  This is in 
>> row_vector_multiplication() and column_vector_multiplication().
>