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systemed
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
/*! \file */
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#ifndef _WRITE_GEOMETRY_H
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#define _WRITE_GEOMETRY_H
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#include <vector>
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#include <utility>
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#include <boost/variant.hpp>
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#include "coordinates.h"
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// Protobuf
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#include "osmformat.pb.h"
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#include "vector_tile.pb.h"
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typedef std::vector<std::pair<int,int> > XYString;
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/**
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\brief WriteGeometryVisitor takes a boost::geometry object and writes it into a tile
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*/
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class WriteGeometryVisitor : public boost::static_visitor<> {
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public:
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const TileBbox *bboxPtr;
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vector_tile::Tile_Feature *featurePtr;
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double simplifyLevel;
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WriteGeometryVisitor(const TileBbox *bp, vector_tile::Tile_Feature *fp, double sl);
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// Point
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void operator()(const Point &p) const;
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// Multipolygon
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void operator()(const MultiPolygon &mp) const;
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// Multilinestring
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void operator()(const MultiLinestring &mls) const;
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// Linestring
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void operator()(const Linestring &ls) const;
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/// \brief Encode a series of pixel co-ordinates into the feature, using delta and zigzag encoding
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bool writeDeltaString(XYString *scaledString, vector_tile::Tile_Feature *featurePtr, std::pair<int,int> *lastPos, bool closePath) const;
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};
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#endif //_WRITE_GEOMETRY_H
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