TwoDTab.cpp
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	//
	// Created by Pauline Ollitrault on 28.11.16.
	//

	#include "TwoDTab.hpp"

	/**
	* @brief Default constructor
	*/
	TwoDTab::TwoDTab() : AbstractTabFunction() {}

	/**
	* @brief Alternate constructor that sets the function
	* @details Calls the @e SetFunction() method with the string passed as argument
	* @param function string containing the name of the data file
	*/
	TwoDTab::TwoDTab(const std::string function) : AbstractTabFunction()
	{
	SetFunction(function);
	}

	/**
	* @brief Sets the function to be integrated
	* @details Reads the data file and stores the datas into class member vectors
	* Returns an error if the number of nodes in the data file is not greated than 1.
	* @param function
	*/
	void TwoDTab::SetFunction(const std::string function)
	{
	std::ifstream read_file(function);

	try {
	if (!read_file.is_open())
	{
	throw Error("Error opening data file : ");
	}
	}
	catch(Error err)
	{
	std::cerr << "ERROR : " << err.what() << function <<std::endl;
	exit(0);
	}

	double x;
	double y;
	double z;

	while (!read_file.eof())
	{
	read_file >> x >> y >> z;
	X.push_back(x);
	Y.push_back(y);
	Z.push_back(z);
	}
	read_file.close();


	try {
	if (X.size() <= 1 or Y.size() <=1 or Z.size()<=1)
	{
	throw Error("Number of nodes must be greater than 1.");
	}
	}
	catch(Error err)
	{
	std::cerr << "ERROR : " << err.what() << std::endl;
	exit(0);
	}
	}