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/**********************************************************************
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.net
*
* PostGIS is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* PostGIS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PostGIS. If not, see <http://www.gnu.org/licenses/>.
*
**********************************************************************
*
* Copyright 2021 Björn Harrtell
*
**********************************************************************/
#ifndef FLATGEOBUF_GEOMETRYWRITER_H
#define FLATGEOBUF_GEOMETRYWRITER_H
#ifdef __cplusplus
extern "C" {
#endif
#include "lwgeom_log.h"
#include "liblwgeom.h"
#ifdef __cplusplus
}
#endif
#include "feature_generated.h"
namespace FlatGeobuf {
class GeometryWriter {
private:
flatbuffers::FlatBufferBuilder &m_fbb;
const LWGEOM *m_lwgeom;
FlatGeobuf::GeometryType m_geometry_type;
const bool m_has_z;
const bool m_has_m;
std::vector<double> m_xy;
std::vector<double> m_z;
std::vector<double> m_m;
void writePoint(const LWPOINT *p);
void writeMultiPoint(const LWMPOINT *mp);
void writeLineString(const LWLINE *l);
void writeMultiLineString(const LWMLINE *ml);
void writePolygon(const LWPOLY *p);
const flatbuffers::Offset<FlatGeobuf::Geometry> writeMultiPolygon(const LWMPOLY *mp, int depth);
const flatbuffers::Offset<FlatGeobuf::Geometry> writeGeometryCollection(const LWCOLLECTION *gc, int depth);
void writePA(POINTARRAY *pa);
void writePPA(POINTARRAY **ppa, uint32_t len);
/*
const flatbuffers::Offset<FlatGeobuf::Geometry> writeCompoundCurve(const OGRCompoundCurve *cc, int depth);
const flatbuffers::Offset<FlatGeobuf::Geometry> writeCurvePolygon(const OGRCurvePolygon *cp, int depth);
const flatbuffers::Offset<FlatGeobuf::Geometry> writePolyhedralSurface(const OGRPolyhedralSurface *p, int depth);
void writeTIN(const OGRTriangulatedSurface *p);
*/
public:
GeometryWriter(
flatbuffers::FlatBufferBuilder &fbb,
const LWGEOM *lwgeom,
const FlatGeobuf::GeometryType geometry_type,
const bool has_z,
const bool has_m) :
m_fbb (fbb),
m_lwgeom (lwgeom),
m_geometry_type (geometry_type),
m_has_z (has_z),
m_has_m (has_m)
{ }
std::vector<uint32_t> m_ends;
const flatbuffers::Offset<FlatGeobuf::Geometry> write(int depth);
static const FlatGeobuf::GeometryType get_geometrytype(const LWGEOM *lwgeom);
};
}
#endif /* FLATGEOBUF_GEOMETRYWRITER_H */
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