32 lines
934 B
C++
32 lines
934 B
C++
#ifndef POLYLINECOMPRESSOR_H_
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#define POLYLINECOMPRESSOR_H_
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#include "util/coordinate.hpp"
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#include <string>
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#include <vector>
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namespace osrm
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{
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namespace engine
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{
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namespace detail
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{
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constexpr double POLYLINE_PRECISION = 1e5;
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constexpr double COORDINATE_TO_POLYLINE = POLYLINE_PRECISION / COORDINATE_PRECISION;
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constexpr double POLYLINE_TO_COORDINATE = COORDINATE_PRECISION / POLYLINE_PRECISION;
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}
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using CoordVectorForwardIter = std::vector<util::Coordinate>::const_iterator;
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// Encodes geometry into polyline format.
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// See: https://developers.google.com/maps/documentation/utilities/polylinealgorithm
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std::string encodePolyline(CoordVectorForwardIter begin, CoordVectorForwardIter end);
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// Decodes geometry from polyline format
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// See: https://developers.google.com/maps/documentation/utilities/polylinealgorithm
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std::vector<util::Coordinate> decodePolyline(const std::string &polyline);
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}
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}
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#endif /* POLYLINECOMPRESSOR_H_ */
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