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45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
#pragma once
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#include "geometry/parametrized_segment.hpp"
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#include "geometry/point2d.hpp"
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#include <cstddef>
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#include <vector>
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namespace search
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{
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struct ProjectionOnStreet
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{
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ProjectionOnStreet();
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// Nearest point on the street to a given point.
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m2::PointD m_proj;
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// Distance in meters from a given point to |m_proj|.
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double m_distMeters;
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// Index of the street segment that |m_proj| belongs to.
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size_t m_segIndex;
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// When true, the point is located to the right from the projection
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// segment, otherwise, the point is located to the left from the
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// projection segment.
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bool m_projSign;
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};
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class ProjectionOnStreetCalculator
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{
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public:
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explicit ProjectionOnStreetCalculator(std::vector<m2::PointD> const & points);
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// Finds nearest point on the street to the |point|. If such point
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// is located within |m_maxDistMeters|, stores projection in |proj|
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// and returns true. Otherwise, returns false and does not modify
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// |proj|.
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bool GetProjection(m2::PointD const & point, ProjectionOnStreet & proj) const;
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private:
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std::vector<m2::ParametrizedSegment<m2::PointD>> m_segments;
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};
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} // namespace search
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