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Data Structures
struct	CurveAnchorPoint

struct	CurveData

struct	CurveSample

Macros
#define	CUBIC_SPLINE 0

#define	CATMULL_ROM 1

#define	MONOTONE_HERMITE 2

#define	MAX_RESOLUTION 65536

#define	MAX_ANCHORS 20

#define	CT_SUCCESS 0

#define	CT_ERROR 100

#define	CT_WARNING 104

#define	CT_SET_ERROR 200

Functions
int	CurveDataSample (CurveData curve, CurveSample sample)

float *	interpolate_set (int n, float x[], float y[], unsigned int type)

float	interpolate_val (int n, float x[], float xval, float y[], float tangents[], unsigned int type)

Macro Definition Documentation

◆ CATMULL_ROM

#define CATMULL_ROM 1

Definition at line 34 of file curve_tools.h.

◆ CT_ERROR

#define CT_ERROR 100

Definition at line 43 of file curve_tools.h.

◆ CT_SET_ERROR

#define CT_SET_ERROR 200

Definition at line 45 of file curve_tools.h.

◆ CT_SUCCESS

#define CT_SUCCESS 0

Definition at line 42 of file curve_tools.h.

◆ CT_WARNING

#define CT_WARNING 104

Definition at line 44 of file curve_tools.h.

◆ CUBIC_SPLINE

#define CUBIC_SPLINE 0

Definition at line 33 of file curve_tools.h.

◆ MAX_ANCHORS

#define MAX_ANCHORS 20

Definition at line 39 of file curve_tools.h.

◆ MAX_RESOLUTION

#define MAX_RESOLUTION 65536

Definition at line 38 of file curve_tools.h.

◆ MONOTONE_HERMITE

#define MONOTONE_HERMITE 2

Definition at line 35 of file curve_tools.h.

Function Documentation

◆ CurveDataSample()

int CurveDataSample	(	CurveData *	curve,
		CurveSample *	sample
	)

Definition at line 677 of file curve_tools.c.

References CT_ERROR, CT_SUCCESS, dt_free, i, interpolate_set(), interpolate_val(), IS_NULL_PTR, CurveData::m_anchors, CurveData::m_max_x, CurveData::m_max_y, CurveData::m_min_x, CurveData::m_min_y, CurveData::m_numAnchors, CurveSample::m_outputRes, CurveSample::m_Samples, CurveSample::m_samplingRes, CurveData::m_spline_type, n, CurveAnchorPoint::x, x, and CurveAnchorPoint::y.

Referenced by dt_draw_curve_calc_values(), get_error(), and main().

◆ interpolate_set()

float * interpolate_set	(	int	n,
		float	x[],
		float	y[],
		unsigned int	type
	)

Definition at line 514 of file curve_tools.c.

References n, spline_set, type, and x.

Referenced by CurveDataSample(), and dt_draw_curve_calc_value().

◆ interpolate_val()

float interpolate_val	(	int	n,
		float	x[],
		float	xval,
		float	y[],
		float	tangents[],
		unsigned int	type
	)

Definition at line 519 of file curve_tools.c.

References n, spline_val, type, and x.