// Nowel.cpp : implementation file
//

#include "stdafx.h"
#include "HtacBall.h"
#include "Nowel.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CNowel dialog


CNowel::CNowel(CWnd* pParent /*=NULL*/)
	: CDialog(CNowel::IDD, pParent)
{
	//{{AFX_DATA_INIT(CNowel)
	m_d = 0.0f;
	m_Y = 0.0f;
	m_Con = _T("");
	//}}AFX_DATA_INIT
}


void CNowel::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CNowel)
	DDX_Text(pDX, IDC_d, m_d);
	DDX_Text(pDX, IDC_Y, m_Y);
	DDX_Text(pDX, IDC_Con, m_Con);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CNowel, CDialog)
	//{{AFX_MSG_MAP(CNowel)
	ON_BN_CLICKED(IDNOWEL, OnNowel)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CNowel message handlers

void CNowel::OnNowel() 
{
	float Y,Xh,Ua,Uf,adw,fdw,dimen,Nowelf,Nowela,Nowel;
	float dltp;
	CString Con;

	//讀取數據
    UpdateData(TRUE);
    CFileDialog OpenDialog(TRUE, // Open...
							"hbr", // default filename extension
							NULL, // initial filename
							OFN_FILEMUSTEXIST|OFN_PATHMUSTEXIST, // options
							"Data Files(*.hbr)|*.hbr|All Files(*.*)|*.*||", // two filters for modules
							this);
    CString sz;
    CFile file;
    if ( OpenDialog.DoModal() == IDOK ) 
    {   
		sz=OpenDialog.GetFileName();
		file.Open(sz,CFile::modeRead);
		float pbuf[34];
	    file.Read(pbuf,34*sizeof(float));
    	Xh=pbuf[30]; 
	    Ua=pbuf[6];
	    Uf=pbuf[13];
	    adw=pbuf[20];
	    fdw=pbuf[21];
	    dimen=pbuf[14];
	    file.Close();
	}

	//阻力計算
    Nowelf= (heat.Fnowel(Uf,fdw,(float) 1.295,dimen)*Xh); //Pa
	Nowela= (heat.Fnowel(Ua,adw,(float) 1.293,dimen)*Xh); //Pa
	Nowel=(Nowelf>Nowela)?Nowelf:Nowela;
	Nowel=Nowel/1000;  //化成KPa
    
	//校核結論
	Y=m_Y;
	dltp=(Nowel-Y)/Nowel;
	if (dltp>=-0.10&&dltp<=0.10)
		Con="風機壓力合適！";
	else if (dltp>0.10)
		Con="風機壓力不足！";
	else if (dltp<-0.10)
		Con="風機壓力太大！";
	m_d=Nowel;
	m_Con=Con;
	UpdateData(FALSE);
}