/// <summary>
/// Constructs a new state vector using data given in primitive
/// variables
/// </summary>
/// <param name="material">
/// The material/fluid associated with the represented state.
/// </param>
/// <param name="density"><see cref="Density"/></param>
/// <param name="velocity"><see cref="Velocity"/></param>
/// <param name="pressure"><see cref="Pressure"/></param>
/// <returns></returns>
public static StateVector FromPrimitiveQuantities(Material material, double density, Vector3D velocity, double pressure)
{
double MachScaling = material.EquationOfState.HeatCapacityRatio * material.Control.MachNumber * material.Control.MachNumber;
StateVector state = new StateVector(
material,
density,
density * velocity,
material.EquationOfState.GetInnerEnergy(density, pressure) + 0.5 * MachScaling * density * velocity.AbsSquare());
return(state);
}