/******************************************************************************
 * $Id$
 *
 * Project:  GDAL Gridding API.
 * Purpose:  Prototypes, and definitions for of GDAL scattered data gridder.
 * Author:   Andrey Kiselev, dron@ak4719.spb.edu
 *
 ******************************************************************************
 * Copyright (c) 2007, Andrey Kiselev <dron@ak4719.spb.edu>
 * Copyright (c) 2012, Even Rouault <even dot rouault at spatialys.com>
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/

#ifndef GDALGRID_H_INCLUDED
#define GDALGRID_H_INCLUDED

/**
 * \file gdalgrid.h
 *
 * GDAL gridder related entry points and definitions.
 */

#include "gdal_alg.h"

/*
 *  GridCreate Algorithm names
 */

static const char szAlgNameInvDist[] = "invdist";
static const char szAlgNameInvDistNearestNeighbor[] = "invdistnn";
static const char szAlgNameAverage[] = "average";
static const char szAlgNameNearest[] = "nearest";
static const char szAlgNameMinimum[] = "minimum";
static const char szAlgNameMaximum[] = "maximum";
static const char szAlgNameRange[] = "range";
static const char szAlgNameCount[] = "count";
static const char szAlgNameAverageDistance[] = "average_distance";
static const char szAlgNameAverageDistancePts[] = "average_distance_pts";
static const char szAlgNameLinear[] = "linear";

CPL_C_START

/*! @cond Doxygen_Suppress */
typedef CPLErr (*GDALGridFunction)(const void *, GUInt32, const double *,
                                   const double *, const double *, double,
                                   double, double *, void *);
/*! @endcond */

CPLErr GDALGridInverseDistanceToAPower(const void *, GUInt32, const double *,
                                       const double *, const double *, double,
                                       double, double *, void *);
CPLErr GDALGridInverseDistanceToAPowerNearestNeighbor(const void *, GUInt32,
                                                      const double *,
                                                      const double *,
                                                      const double *, double,
                                                      double, double *, void *);
CPLErr GDALGridInverseDistanceToAPowerNoSearch(const void *, GUInt32,
                                               const double *, const double *,
                                               const double *, double, double,
                                               double *, void *);
CPLErr GDALGridMovingAverage(const void *, GUInt32, const double *,
                             const double *, const double *, double, double,
                             double *, void *);
CPLErr GDALGridNearestNeighbor(const void *, GUInt32, const double *,
                               const double *, const double *, double, double,
                               double *, void *);
CPLErr GDALGridDataMetricMinimum(const void *, GUInt32, const double *,
                                 const double *, const double *, double, double,
                                 double *, void *);
CPLErr GDALGridDataMetricMaximum(const void *, GUInt32, const double *,
                                 const double *, const double *, double, double,
                                 double *, void *);
CPLErr GDALGridDataMetricRange(const void *, GUInt32, const double *,
                               const double *, const double *, double, double,
                               double *, void *);
CPLErr GDALGridDataMetricCount(const void *, GUInt32, const double *,
                               const double *, const double *, double, double,
                               double *, void *);
CPLErr GDALGridDataMetricAverageDistance(const void *, GUInt32, const double *,
                                         const double *, const double *, double,
                                         double, double *, void *);
CPLErr GDALGridDataMetricAverageDistancePts(const void *, GUInt32,
                                            const double *, const double *,
                                            const double *, double, double,
                                            double *, void *);
CPLErr GDALGridLinear(const void *, GUInt32, const double *, const double *,
                      const double *, double, double, double *, void *);

#ifndef GDAL_COMPILATION
/* ParseAlgorithmAndOptions() is used by PostGIS Raster, hence this alias */

/** Compatibility deprecated alias for GDALGridParseAlgorithmAndOptions() */
#define ParseAlgorithmAndOptions GDALGridParseAlgorithmAndOptions
#endif

CPLErr CPL_DLL GDALGridParseAlgorithmAndOptions(const char *,
                                                GDALGridAlgorithm *, void **);

CPL_C_END

#endif /* GDALGRID_H_INCLUDED */