AW: AW: AW: AW: [Paraview] Combine vect

[Amy Henderson]

I have made a change in vtkFunctionParser.cxx to fix this problem on the 
main ParaView CVS branch.

- Amy

At 08:57 AM 5/14/2004, Amy Henderson wrote:
>David,
>
>Thanks for sending a simple, reproducible example demonstrating the 
>problem.  I'll look into what's going wrong.
>
>- Amy
>
>At 01:13 AM 5/14/2004, David Thompson wrote:
>>On Thu, 2004-05-13 at 13:16, Amy Henderson wrote:
>> > To my knowledge, there is not a problem with your file format or the
>> > magnitude of the velocity components.
>> >
>> > Earlier in this thread, you said that the expression you were evaluating
>> > with the calculator was iHat * x1-vel  + jHat * x3-vel + kHat * 
>> x3-vel. Was
>> > this a typo? It looks to me like you should not be multiplying the same
>> > scalar array by both jHat and kHat. If this really is the expression you
>> > input to the calculator, it would explain why your streamlines are not
>> > doing what you expect them to.
>>Actually, I noticed a similar problem on the CVS trunk yesterday. To
>>replicate it, load multicomb_0.vtu, run the "Extract Surface" filter,
>>and then create an Array Calculator. If you enter
>>         Result = iHat*Density+jHat*Momentum_0
>>you'll get an incorrect scalar field. However, if you enter
>>         Result = Density*iHat+Momentum_0*jHat
>>you'll get the correct result. For some reason, multiplication by the
>>unit vectors isn't commutative. I've tried this on two different
>>machines with recent CVS checkouts and got the same results.
>>
>>                 David
>>
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>
>
>
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