[DoQuocVu]

Hi everyone,

I want to create an array of 2 vectorField, for example,

List<vectorField> Ub;

If I know already the size of Ub, how can I assign all zero values for Ub?

[ankur_garg]

List<vectorField> Ub(2, Zero);
Where 2 denotes the Size of the list, and Zero is like (0 0 0 ) for the two vector fields. It can also be defined as an initialization of the list.

Let me know if it doesn't work.

Thank you.

Regards,
Ankur

[DoQuocVu]

Hi Ankur,

Thanks a lot for your suggestion,

Unfortunately, It does not work.

I know about the the definition of Ub(2, vector::zero), it will give me a List of 2 vector (0 0 0) rather than two vectorField with all vectors are zero.

Do you have any other idea?

[ankur_garg]

Will this bunch of code will help you? Please let me know.

List<vectorField>Ub(2);
forAll(Ub, Lctr)
{
vectorField vf(1);
vf[0] = Zero;
Ub[Lctr] = vf;

}
forAll(Ub, Lctr)
{
Info<< '\t' << "List = "<<Ub[Lctr]<<'\t'<<nl;
}



Thank you.

Regards,
Ankur

[DoQuocVu]

Hi ankur,

Thanks again for your kindness. Actually i'm using this way to define my array which is quite similar to what you said:

List<vectorField> Ub(2)
forAll(Ub, i)
{
    vectorField Utemp(n, vector::zero);
    Ub[i] = Utemp;
}

n is the field size that I know already.
I want to know if there is a shorter way to achieve that though. I've gone through the source code but couldn't find any appropriate constructor, so maybe this is the only way to do that I think

[ankur_garg]

Welcome DoQuocVu. I am Sorry actually for not being able to give some shorter way. I am not that proficient with OpenFOAM till now, I am just learning, and you also taught me something by putting this query.

Thank you very much for your kindness.

Regards,
Ankur