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#pragma once
#include "point.h"
#include "window.h"
#include <util/ysaveload.h>
#include <util/generic/algorithm.h>
#include <util/generic/string.h>
#include <util/generic/vector.h>
#include <util/generic/yexception.h>
#include <util/stream/output.h>
#include <util/string/cast.h>
#include <util/string/join.h>
#include <util/string/split.h>
#include <algorithm>
#include <functional>
namespace NGeo {
class TGeoPolygon {
private:
TVector<TGeoPoint> Points_;
TGeoWindow Window_;
public:
TGeoPolygon() = default;
explicit TGeoPolygon(const TVector<TGeoPoint>& points)
: Points_(points)
{
CalcWindow();
}
const TVector<TGeoPoint>& GetPoints() const {
return Points_;
}
const TGeoWindow& GetWindow() const {
return Window_;
}
void swap(TGeoPolygon& o) noexcept {
Points_.swap(o.Points_);
Window_.swap(o.Window_);
}
bool IsValid() const noexcept {
return !Points_.empty() && Window_.IsValid();
}
bool operator!() const {
return !IsValid();
}
/**
* try to parse TGeoPolygon from string which stores points
* coords are separated by llDelimiter, points are separated by pointsDelimiter
* return parsed TGeoPolygon on success, otherwise throw exception
*/
static TGeoPolygon Parse(TStringBuf s, TStringBuf llDelimiter = ",", TStringBuf pointsDelimiter = TStringBuf(" "));
/**
* try to parse TGeoPolygon from string which stores points
* coords are separated by llDelimiter, points are separated by pointsDelimiter
* return TMaybe of parsed TGeoPolygon on success, otherwise return empty TMaybe
*/
static TMaybe<TGeoPolygon> TryParse(TStringBuf s, TStringBuf llDelimiter = ",", TStringBuf pointsDelimiter = TStringBuf(" "));
private:
void CalcWindow() {
auto getLon = std::mem_fn(&TGeoPoint::Lon);
double lowerX = MinElementBy(Points_.begin(), Points_.end(), getLon)->Lon();
double upperX = MaxElementBy(Points_.begin(), Points_.end(), getLon)->Lon();
auto getLat = std::mem_fn(&TGeoPoint::Lat);
double lowerY = MinElementBy(Points_.begin(), Points_.end(), getLat)->Lat();
double upperY = MaxElementBy(Points_.begin(), Points_.end(), getLat)->Lat();
Window_ = TGeoWindow{TGeoPoint{lowerX, lowerY}, TGeoPoint{upperX, upperY}};
}
};
inline bool operator==(const TGeoPolygon& p1, const TGeoPolygon& p2) {
return p1.GetPoints() == p2.GetPoints();
}
inline bool operator!=(const TGeoPolygon& p1, const TGeoPolygon& p2) {
return !(p1 == p2);
}
} // namespace NGeo
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