#if !defined(PETSCDMPLEXTYPES_H)
#define PETSCDMPLEXTYPES_H

/*S
  DMPlexCellRefiner - Object encapsulating the refinement strategy for a DMPlex

  Level: developer

.seealso:  DMPlexCellRefinerCreate(), DMType
S*/
typedef struct _p_DMPlexCellRefiner *DMPlexCellRefiner;

/*E
  DMPlexCellRefinerType - This describes the strategy used to refine cells.

  Level: beginner

  The strategy gives a prescription for refining each cell type. Existing strategies include
$ DM_REFINER_REGULAR       - Divide cells into smaller cells of the same type
$ DM_REFINER_TO_BOX        - Divide all cells into box cells
$ DM_REFINER_TO_SIMPLEX    - Divide all cells into simplices
$ DM_REFINER_ALFELD2D      - Alfeld barycentric refinement of triangles
$ DM_REFINER_ALFELD3D      - Alfeld barycentric refinement of tetrahedra
$ DM_REFINER_POWELL_SABIN  - Powell-Sabin barycentric refinement of simplices (unfinished)
$ DM_REFINER_BOUNDARYLAYER - Refine only tensor cells in the tensor direction, often used to refine boundary layers
$ DM_REFINER_SBR           - Adaptively refine using the Skeleton-based Refinement algorithm of Plaza and Carey

.seealso: DMPlexGetCellRefiner(), DMPlexSetCellRefiner(), DMRefine(), DMPolytopeType
E*/
typedef enum {DM_REFINER_REGULAR, DM_REFINER_TO_BOX, DM_REFINER_TO_SIMPLEX, DM_REFINER_ALFELD2D, DM_REFINER_ALFELD3D, DM_REFINER_POWELL_SABIN, DM_REFINER_BOUNDARYLAYER, DM_REFINER_SBR} DMPlexCellRefinerType;
PETSC_EXTERN const char * const DMPlexCellRefinerTypes[];

/*E
  DMPlexShape - The domain shape used for automatic mesh creation.

  Existing shapes include
$ DM_SHAPE_BOX         - The tensor product of intervals in dimension d
$ DM_SHAPE_BOX_SURFACE - The surface of a box in dimension d+1
$ DM_SHAPE_BALL        - The d-dimensional ball
$ DM_SHAPE_SPHERE      - The surface of the (d+1)-dimensional ball
$ DM_SHAPE_CYLINDER    - The tensor product of the interval and disk

  Level: beginner

.seealso: DMPlexGetCellRefiner(), DMPlexSetCellRefiner(), DMRefine(), DMPolytopeType
E*/
typedef enum {DM_SHAPE_BOX, DM_SHAPE_BOX_SURFACE, DM_SHAPE_BALL, DM_SHAPE_SPHERE, DM_SHAPE_CYLINDER, DM_SHAPE_UNKNOWN} DMPlexShape;
PETSC_EXTERN const char * const DMPlexShapes[];

#endif