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/*
 * (C) Copyright 1996-2016 ECMWF.
 * 
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. 
 * In applying this licence, ECMWF does not waive the privileges and immunities 
 * granted to it by virtue of its status as an intergovernmental organisation nor
 * does it submit to any jurisdiction.
 */

/*! \file UserPoint.h
    \brief Definition of Point (x, y, z, v).
    
    Magics Team - ECMWF 2004
    
    Started: Jan 2004
    
    Changes:
    
*/
#ifndef UserPoint_H
#define UserPoint_H

#include "magics.h"
#include <stack>

namespace magics {

class UserPoint  {

public:
	UserPoint(double x, double y, double value = 0, bool missing = false, bool border = false, const string& name = "") :
		x_(x), y_(y), value_(value), name_(name), high_(false), low_(false), missing_(missing), border_(border)  {}
	// ~UserPoint() {}
	UserPoint() :
		x_(0), y_(0), value_(0), name_(""), high_(false), low_(false), missing_(false), border_(false) {}
	
	void y(double y) { y_ = y; }
	void x(double x) { x_ = x; }
	void value(double value) { value_ = value; }
    
    
	inline double y() const     { return y_; }
	inline double x() const     { return x_; }
	inline double value() const { return value_; }
	inline const string& name() const  { return name_; }
	
	void flagMissing()          { missing_ = true; }
	bool missing() const        { return missing_; }
	
	void flagBorder()          { border_ = true; }
		bool border() const        { return border_; }
		
	bool ignore() const { return border_ || missing_; } 
	
	bool operator==(const UserPoint& other) const
	{
		return (  same(x_, other.x()) && same(y_, other.y()) );
	}
	bool operator!=(const UserPoint& other) const
	{
		return !(*this == other);
	}
	double x_;
	double y_;
	double value_;
	string name_;
	void high(bool high) { high_ = high; }
	void low(bool low)   { low_ = low; }
	bool high() const { return high_; }
	bool low() const { return low_; }

	UserPoint shift(double left, double right) const
	{
		UserPoint point(*this);
		if ( left <= x_ &&  x_ <= right) return point;
		while (point.x_ <= left && point.x_ <= right)
			point.x_ += 360;
		while (point.x_ >= right && point.x_ > left)
			point.x_ -= 360;
		return point;
	}
	string asLongitude() const
	{
		ostringstream lon;

		string ew = "&#176;";
		UserPoint nice = shift(-180, 180);

		if ( nice.x_ < 0 ) ew += "W";
		if ( nice.x_ >= 0 ) ew += "E";
		float x = float(maground(abs(nice.x_)*100)) / 100;
		lon << x << ew;
		return  lon.str();
	}

	string asLatitude() const
	{
		ostringstream lat;

		string ns = "&#176;";
		if ( y_ < 0 ) ns += "S";
		if ( y_ >= 0 ) ns += "N";
		float y = float(maground(abs(y_)*100)) / 100;
		lat <<  y << ns;
		return  lat.str();
	}
protected:
    bool high_;
	bool low_;
	bool missing_;
	bool border_;
	

	void print(ostream& out) const
	{ 
		out << "UserPoint[";
		out << x_ << "(x), ";
		out << y_ << "(y),";
		out << value_ << "(value)]";
	}

private:
	
// -- Friends
	friend ostream& operator<<(ostream& s,const UserPoint& p)
		{ p.print(s); return s; }
};
}
#endif