enum GwyMergeType

typedef enum {
    GWY_MERGE_UNION,
    GWY_MERGE_INTERSECTION
} GwyMergeType;

Mask merge type (namely used in grain processing).

enum GwyWatershedStateType

typedef enum {
    GWY_WATERSHED_STATE_INIT,
    GWY_WATERSHED_STATE_LOCATE,
    GWY_WATERSHED_STATE_MIN,
    GWY_WATERSHED_STATE_WATERSHED,
    GWY_WATERSHED_STATE_MARK,
    GWY_WATERSHED_STATE_FINISHED
} GwyWatershedStateType;

enum GwyPlaneSymmetry

typedef enum {
    GWY_SYMMETRY_AUTO,
    GWY_SYMMETRY_PARALLEL,
    GWY_SYMMETRY_TRIANGULAR,
    GWY_SYMMETRY_SQUARE,
    GWY_SYMMETRY_RHOMBIC,
    GWY_SYMMETRY_HEXAGONAL,
    GWY_SYMMETRY_LAST
} GwyPlaneSymmetry;

Plane symmetry types for rotation correction.

enum Gwy2DCWTWaveletType

typedef enum { /*< lowercase_name=gwy_2d_cwt_wavelet_type >*/
    GWY_2DCWT_GAUSS,
    GWY_2DCWT_HAT
} Gwy2DCWTWaveletType;

enum GwyOrientation

typedef enum {
    GWY_ORIENTATION_HORIZONTAL,
    GWY_ORIENTATION_VERTICAL
} GwyOrientation;

Orientation type.

enum GwyTransformDirection

typedef enum {
    GWY_TRANSFORM_DIRECTION_BACKWARD = -1,
    GWY_TRANSFORM_DIRECTION_FORWARD = 1
} GwyTransformDirection;

Transform (namely integral transform) direction.

In FFT, it is equal to sign of the exponent, that is backward transform uses -1, forward transform +1.

enum GwyDataFieldCached

typedef enum {
    GWY_DATA_FIELD_CACHE_MIN = 0,
    GWY_DATA_FIELD_CACHE_MAX,
    GWY_DATA_FIELD_CACHE_SUM,
    GWY_DATA_FIELD_CACHE_RMS,
    GWY_DATA_FIELD_CACHE_MED,
    GWY_DATA_FIELD_CACHE_ARF,
    GWY_DATA_FIELD_CACHE_ART,
    GWY_DATA_FIELD_CACHE_ARE,
    GWY_DATA_FIELD_CACHE_SIZE = 30
} GwyDataFieldCached;

Cached data field quantity type.

There should be little need to this enum directly except in libgwyprocess methods.

enum GwyComputationStateType

typedef enum {
    GWY_COMPUTATION_STATE_INIT,
    GWY_COMPUTATION_STATE_ITERATE,
    GWY_COMPUTATION_STATE_FINISHED
} GwyComputationStateType;

Common iterative computation iterator state type.

enum GwyDWTType

typedef enum {
    GWY_DWT_HAAR,
    GWY_DWT_DAUB4,
    GWY_DWT_DAUB6,
    GWY_DWT_DAUB8,
    GWY_DWT_DAUB12,
    GWY_DWT_DAUB20
} GwyDWTType;

enum GwyDWTDenoiseType

typedef enum {
    GWY_DWT_DENOISE_UNIVERSAL,
    GWY_DWT_DENOISE_SCALE_ADAPTIVE,
    GWY_DWT_DENOISE_SPACE_ADAPTIVE
} GwyDWTDenoiseType;

enum GwyInterpolationType

typedef enum {
    GWY_INTERPOLATION_NONE      = 0,
    GWY_INTERPOLATION_ROUND     = 1,
    GWY_INTERPOLATION_LINEAR    = 2,
    GWY_INTERPOLATION_BILINEAR  = GWY_INTERPOLATION_LINEAR,
    GWY_INTERPOLATION_KEY       = 3,
    GWY_INTERPOLATION_BSPLINE   = 4,
    GWY_INTERPOLATION_OMOMS     = 5,
    GWY_INTERPOLATION_NNA       = 6,
    GWY_INTERPOLATION_SCHAUM    = 7
} GwyInterpolationType;

Interpolation types.

enum GwyPlaneFitQuantity

typedef enum {
    GWY_PLANE_FIT_A = 1,
    GWY_PLANE_FIT_BX,
    GWY_PLANE_FIT_BY,
    GWY_PLANE_FIT_ANGLE,
    GWY_PLANE_FIT_SLOPE,
    GWY_PLANE_FIT_S0,
    GWY_PLANE_FIT_S0_REDUCED
} GwyPlaneFitQuantity;

Local plane fitting quantity to request from gwy_data_field_area_fit_local_planes() and similar functions.

enum GwyWindowingType

typedef enum {
    GWY_WINDOWING_NONE       = 0,
    GWY_WINDOWING_HANN       = 1,
    GWY_WINDOWING_HAMMING    = 2,
    GWY_WINDOWING_BLACKMANN  = 3,
    GWY_WINDOWING_LANCZOS    = 4,
    GWY_WINDOWING_WELCH      = 5,
    GWY_WINDOWING_RECT       = 6
} GwyWindowingType;

Frequency windowing type.

enum GwyTipType

typedef enum {
    GWY_TIP_PYRAMIDE       = 0,
    GWY_TIP_CONTACT        = 1,
    GWY_TIP_NONCONTACT     = 2,
    GWY_TIP_DELTA          = 3
} GwyTipType;

enum GwyCorrelationType

typedef enum {
    GWY_CORRELATION_NORMAL  = 0,
    GWY_CORRELATION_FFT     = 1,
    GWY_CORRELATION_POC     = 2
} GwyCorrelationType;

enum GwyGrainQuantity

typedef enum {
    GWY_GRAIN_VALUE_PROJECTED_AREA       = 0,
    GWY_GRAIN_VALUE_EQUIV_SQUARE_SIDE    = 1,
    GWY_GRAIN_VALUE_EQUIV_DISC_RADIUS    = 2,
    GWY_GRAIN_VALUE_SURFACE_AREA         = 3,
    GWY_GRAIN_VALUE_MAXIMUM              = 4,
    GWY_GRAIN_VALUE_MINIMUM              = 5,
    GWY_GRAIN_VALUE_MEAN                 = 6,
    GWY_GRAIN_VALUE_MEDIAN               = 7,
    GWY_GRAIN_VALUE_FLAT_BOUNDARY_LENGTH = 10,
    GWY_GRAIN_VALUE_MINIMUM_BOUND_SIZE   = 12,
    GWY_GRAIN_VALUE_MINIMUM_BOUND_ANGLE  = 13,
    GWY_GRAIN_VALUE_MAXIMUM_BOUND_SIZE   = 14,
    GWY_GRAIN_VALUE_MAXIMUM_BOUND_ANGLE  = 15
} GwyGrainQuantity;

Grain quantity to request from gwy_data_field_grains_get_distribution() and similar functions.

enum GwyDataCompatibilityFlags

typedef enum {
    GWY_DATA_COMPATIBILITY_RES     = 1 << 0,
    GWY_DATA_COMPATIBILITY_REAL    = 1 << 1,
    GWY_DATA_COMPATIBILITY_MEASURE = 1 << 2,
    GWY_DATA_COMPATIBILITY_LATERAL = 1 << 3,
    GWY_DATA_COMPATIBILITY_VALUE   = 1 << 4,
    GWY_DATA_COMPATIBILITY_ALL     = 0x001f
} GwyDataCompatibilityFlags;

Data line and field compatibility flags.

enum GwyLineStatQuantity

typedef enum {
    GWY_LINE_STAT_MEAN,
    GWY_LINE_STAT_MEDIAN,
    GWY_LINE_STAT_MINIMUM,
    GWY_LINE_STAT_MAXIMUM,
    GWY_LINE_STAT_RMS,
    GWY_LINE_STAT_LENGTH,
    GWY_LINE_STAT_SLOPE,
    GWY_LINE_STAT_TAN_BETA0
} GwyLineStatQuantity;

Line statistical quantities to be requested with gwy_data_field_area_get_line_stats().

Since 2.2

enum GwyExteriorType

typedef enum {
    GWY_EXTERIOR_UNDEFINED,
    GWY_EXTERIOR_BORDER_EXTEND,
    GWY_EXTERIOR_MIRROR_EXTEND,
    GWY_EXTERIOR_PERIODIC,
    GWY_EXTERIOR_FIXED_VALUE
} GwyExteriorType;

Methods to handle pixels outside data.

Many methods currently use a fixed metod of handling of exterior pixels, for example area calculation uses extension (border and mirror coincide), convolution uses mirror extension, rotation fills exterior with a fixed value.

Since 2.2

gwy_merge_type_get_enum ()

const GwyEnum* gwy_merge_type_get_enum      (void);

Returns GwyEnum for GwyMergeType enum type.

gwy_plane_symmetry_get_enum ()

const GwyEnum* gwy_plane_symmetry_get_enum  (void);

Returns GwyEnum for GwyPlaneSymmetry enum type.

gwy_2d_cwt_wavelet_type_get_enum ()

const GwyEnum* gwy_2d_cwt_wavelet_type_get_enum
                                            (void);

Returns GwyEnum for Gwy2DCWTWaveletType enum type.

gwy_orientation_get_enum ()

const GwyEnum* gwy_orientation_get_enum     (void);

Returns GwyEnum for GwyOrientation enum type.

gwy_dwt_type_get_enum ()

const GwyEnum* gwy_dwt_type_get_enum        (void);

Returns GwyEnum for GwyDWTType enum type.

gwy_dwt_denoise_type_get_enum ()

const GwyEnum* gwy_dwt_denoise_type_get_enum
                                            (void);

Returns GwyEnum for GwyDWTDenoiseType enum type.

gwy_interpolation_type_get_enum ()

const GwyEnum* gwy_interpolation_type_get_enum
                                            (void);

Returns GwyEnum for GwyInterpolationType enum type.

gwy_windowing_type_get_enum ()

const GwyEnum* gwy_windowing_type_get_enum  (void);

Returns GwyEnum for GwyWindowingType enum type.

gwy_correlation_type_get_enum ()

const GwyEnum* gwy_correlation_type_get_enum
                                            (void);

GwyComputationState

typedef struct {
    guint state;
    gdouble fraction;
} GwyComputationState;

State of iterative computation.

Iterators usually append their own private state data, therefore it must not be assumed the public fields state and fraction are the only fields.

A typical iteration, assuming an iterative computation `foo' with the default GwyComputationStateType state could be:

GwyComputationStateType *state;

state = gwy_data_field_foo_init(GwyDataField *data_field, ...);
do {
    gwy_data_field_foo_iteration(state);
    /* Update progress using state->fraction,
        let Gtk+ main loop run, check for abort, ... */
    if (aborted) {
        gwy_data_field_foo_finalize(state);
        return FALSE;
    }
} while (state->state != GWY_COMPUTATION_STATE_FINISHED);
gwy_data_field_foo_finalize(state);
return TRUE;