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/******************************** LICENSE ********************************

 Copyright 2007 European Centre for Medium-Range Weather Forecasts (ECMWF)

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at 

    http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.

 ******************************** LICENSE ********************************/

/*! \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) :
		x_(x), y_(y), value_(value), high_(false), low_(false), missing_(missing), border_(border)  {}
	// ~UserPoint() {}
	UserPoint() :
		x_(0), y_(0), value_(0), 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_; }
	
	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_;
	/*
	bool in(double left, double right, double bottom, double top,std::stack<UserPoint*>& points)
	{
		double miny = std::min(top, bottom);
		double maxy = std::max(top, bottom);
		double minx = std::min(left, right);
		double maxx = std::max(left, right);

		if (y_ > maxy)
			return false;
		if (y_ < miny)
			return false;
		if (x_ < minx)
			return false;
		if (x_ > maxx)
			return false;
		UserPoint* point = this;
		points.push(point);
		return true;
	}
	*/
	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 = "#232"; // degree symbol
		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 = "#232"; // degree symbol
		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