File fci.hxx#

class FCIMap#
#include <fci.hxx>

Field line map - contains the coefficients for interpolation.

Public Functions

FCIMap() = delete#
FCIMap(Mesh &mesh, const Coordinates::FieldMetric &dy, Options &options, int offset, const std::shared_ptr<BoundaryRegionPar> &inner_boundary, const std::shared_ptr<BoundaryRegionPar> &outer_boundary, bool zperiodic)#
inline Field3D interpolate(Field3D &f) const#
Field3D integrate(Field3D &f) const#

Public Members

Mesh &map_mesh#
const int offset#

Direction of map.

Region<Ind3D> region_no_boundary#

region containing all points where the field line has not left the domain

BoutMask corner_boundary_mask#

If any of the integration area has left the domain.

Private Members

std::unique_ptr<XZInterpolation> interp#

Interpolation objects.

std::unique_ptr<XZInterpolation> interp_corner#
class FCITransform : public ParallelTransform#
#include <fci.hxx>

Flux Coordinate Independent method for parallel derivatives.

Public Functions

FCITransform() = delete#
inline FCITransform(Mesh &mesh, const Coordinates::FieldMetric &dy, bool zperiodic = true, Options *opt = nullptr)#
virtual void calcParallelSlices(Field3D &f) override#

Given a 3D field, calculate and set the Y up down fields.

virtual void integrateParallelSlices(Field3D &f) override#

Calculate Yup and Ydown fields by integrating over mapped points This should be used for parallel divergence operators

inline virtual Field3D toFieldAligned(const Field3D &f, const std::string &region = "RGN_ALL") override#

Convert a field into field-aligned coordinates so that the y index is along the magnetic field

inline virtual FieldPerp toFieldAligned(const FieldPerp &f, const std::string &region = "RGN_ALL") override#
inline virtual Field3D fromFieldAligned(const Field3D &f, const std::string &region = "RGN_ALL") override#

Convert back from field-aligned coordinates into standard form

inline virtual FieldPerp fromFieldAligned(const FieldPerp &f, const std::string &region = "RGN_ALL") override#
inline virtual bool canToFromFieldAligned() const override#
inline bool requiresTwistShift(bool twist_shift_enabled, [[maybe_unused]] YDirectionType ytype) override#

Protected Functions

virtual void checkInputGrid() override#

This method should be called in the constructor to check that if the grid has a ‘parallel_transform’ variable, it has the correct value

Private Members

std::vector<FCIMap> field_line_maps#

FCI maps for each of the parallel slices.