Adding a New Forward Solver to the VTS

Bring up the VTS project In Visual Studio

Browse to the location of the existing forward solvers:
Core/Vts/Modeling/ForwardSolvers/

In File System:
…\vts\src\Vts\Modeling\ForwardSolvers\

Here you will see the the list of all the existing forward solvers

To create a new forward solver, in Visual Studio right click on the ForwardSolvers folder and select Add → Class…

Name the class and click the Add button.

Visual Studio will create a class within the Vts.Modeling.ForwardSolvers namespace with the name you gave the file.

namespace Vts.Modeling.ForwardSolvers
{
    public class ReallyAwfulForwardSolver
    {
    }
}

Inherit from the ForwardSolverBase class.
Type a : after the name of the class and a list of options should appear, select ForwardSolverBase.
To automatically implement the class, after typing or selecting ForwardSolverBase click CTRL + . or highlight the smart tag to the bottom left of the name and select "Implement abstract class 'ForwardSolverBase'.

    public class ReallyAwfulForwardSolver : ForwardSolverBase
    {
        public override double ROfRho(OpticalProperties op, double rho)
        {
            throw new NotImplementedException();
        }
        ...
    }

Remove the line of code that throws a not implemented exception and replace it with your Forward Solver code

        public override double ROfRho(OpticalProperties op, double rho)
        {
            return 0.01 * (op.Musp * op.Mua * rho);
        }

To allow you to select your new Forward Solver from the GUI interface, you need to add a line of code under ForwardSolverType in the enums file which can be found here:
Core/Vts/Common/Enums.cs

In File System:
…\vts\src\Vts\Common\Enums.cs

    public enum ForwardSolverType
    {
        PointSourceSDA,
        DistributedPointSourceSDA,
        DistributedGaussianSourceSDA,
        DeltaPOne,
        MonteCarlo,
        Nurbs,
        pMC,
        DiscreteOrdinates,
        ReallyAwful
    }

To see your new forward solver in the WPF GUI, include the Vts.Gui.Wpf project in the Vts Solution. If you compile and run the GUI, you will see your new forward solver added to the list.