Type conversion question

feldy77 · December 15, 2011, 03:33

Dear forum,
I need to compare the value of z coordinate of my boundary mesh with some variable, let say of a double or scalar type

scalar min=10.0;
forAll (ccSph.boundaryField(), patchI)
{
ccSph.boundaryField()[patchI] = sph.localVector(mesh.C().boundaryField()[patchI]);
if (ccSph.boundaryField()[patchI].component(vector::Z)>max) {do something };
}
Unfortunately this code does not pass compilation, since the first argument in if return reference to a surface field. How can I circumvent the problem? Is there any standard way of type conversion in OpenFoam.
Many thanks, Yuri

ngj · December 15, 2011, 03:50

Hi Yuri

You are comparing a scalarField with a scalar, which does not make much sense. Instead, you should loop over the scalarField and make the comparison one boundary face at the time.

Best regards,

Niels

December 15, 2011, 03:33	Type conversion question	#1
feldy77 Member Yuri Feldman Join Date: Mar 2011 Posts: 30 Rep Power: 15	Dear forum, I need to compare the value of z coordinate of my boundary mesh with some variable, let say of a double or scalar type scalar min=10.0; forAll (ccSph.boundaryField(), patchI) { ccSph.boundaryField()[patchI] = sph.localVector(mesh.C().boundaryField()[patchI]); if (ccSph.boundaryField()[patchI].component(vector::Z)>max) {do something }; } Unfortunately this code does not pass compilation, since the first argument in if return reference to a surface field. How can I circumvent the problem? Is there any standard way of type conversion in OpenFoam. Many thanks, Yuri

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December 15, 2011, 03:50		#2
ngj Senior Member Niels Gjoel Jacobsen Join Date: Mar 2009 Location: Copenhagen, Denmark Posts: 1,900 Rep Power: 37	Hi Yuri You are comparing a scalarField with a scalar, which does not make much sense. Instead, you should loop over the scalarField and make the comparison one boundary face at the time. Best regards, Niels