Position diff hook

class mdk::PositionDiff : public mdk::Hook, private mdk::SimulVar

A hook which saves position diffs. I assume this takes the path to the positions as outputted by the Fortran implementation and compares the positions in the consecutive steps with the current positions, whereafter it outputs the diffs to the outputPath.

Public Functions

inline PositionDiff(std::string inputPath, std::string const &outputPath)

Create a PositionDiff object with given input and output paths.

Parameters

• inputPath – Path to the file with Fortran positions.

• outputPath – Path to the diff file to create.

virtual void bind(Simulation &simulation) override

Bind the hook to the simulation; also fetch the state and load the reference positions.

Parameters

simulation –

virtual void execute(int step_nr) override

Execute the hook, i.e. output the diffs for the current step to the diff file.

Parameters

step_nr – Number of the step of the simulation at which the hook was invoked.

Private Members

std::string inputPath

A path to the Fortran reference positions file.

std::ofstream output

Position diffs output stream.

std::map<int, Vectors> refPositions

Reference positions loaded from the file at inputPath, in the form of a map from the step number to a list of positions.

State const *state = nullptr

Saved const pointer to the state of the simulation.