[msaravia]

Hi ! I know this question may result trivial, but I could not manage to do it.

I need to read the fvSolution dictionary without using a reference to the mesh. This is why:

I was creating the control as:

const dictionary& vmfControl = mesh.solutionDict().subDict("VMF");

but now I have a multi region mesh; and although I could add a fvSolution file to every region folder and create a control for every region as

const dictionary& vmfControl = mesh[i].solutionDict().subDict("VMF");

I want to use only one fvSolution file for all the regions.

EDIT: I have created a dictionary using Time as a register

IOdictionary vmfControl
(
    IOobject
    (
        "vmf",
        runTime.system(),
        runTime,
        IOobject::MUST_READ_IF_MODIFIED,
        IOobject::NO_WRITE
    )
);

Thanks in advance.

[Tobi]

Hi,
the mesh is not required, but you need other objects (that are stored inside the mesh object). To get an idea, you have to look into the Doxygen source code guide (https://cpp.openfoam.org/v6/classFoam_1_1IOobject.html).

Here you see the different constructors for the IOobject object. So basically, the mesh will deliver the const objectRegistry &registry object.

So what you can do is, first build an objectRegistry object and use it for constructing your IOdictionary; cf. https://cpp.openfoam.org/v6/classFoa...tRegistry.html

[msaravia]

Hi Tobi, thanks for your answer. I have used runTime, which is a registry object. Its being a hard work to dig all OF source code...