zbxbhview.cpp

嵌入式开发、算法实现为主!!! 坐标变换？？？

// ZBXBHView.cpp : implementation of the CZBXBHView class
//

#include "stdafx.h"
#include "ZBXBH.h"

#include "ZBXBHDoc.h"
#include "ZBXBHView.h"

#include "math.h" 

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

/////////////////////////////////////////////////////////////////////////////
// CZBXBHView

IMPLEMENT_DYNCREATE(CZBXBHView, CView)

BEGIN_MESSAGE_MAP(CZBXBHView, CView)
	//{{AFX_MSG_MAP(CZBXBHView)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CZBXBHView construction/destruction

CZBXBHView::CZBXBHView()
{
	// TODO: add construction code here
	xw1=100;
	yw1=50;
	zw1=80;
	xw2=200;
	yw2=150;
	zw2=50;
	a=50;
	b=60;
	c=50;
}

CZBXBHView::~CZBXBHView()
{
}

BOOL CZBXBHView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CZBXBHView drawing

void CZBXBHView::OnDraw(CDC* pDC)
{
	CZBXBHDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	ZBXBH(pDC,xw1,yw1,zw1,xw2,yw2,zw2,a,b,c);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CZBXBHView printing

BOOL CZBXBHView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CZBXBHView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CZBXBHView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CZBXBHView diagnostics

#ifdef _DEBUG
void CZBXBHView::AssertValid() const
{
	CView::AssertValid();
}

void CZBXBHView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CZBXBHDoc* CZBXBHView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CZBXBHDoc)));
	return (CZBXBHDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CZBXBHView message handlers

void CZBXBHView::ZBXBH(CDC *pDC, int xw1, int yw1, int zw1, int xw2, int yw2, int zw2,int a,int b,int c)
{
	int xe1,ye1,ze1;
	int xe2,ye2,ze2;
	int xs1,ys1,zs1;
	int xs2,ys2,zs2;
	double u,v;

	zs1=100;
	zs2=100;
	v=sqrt(a*a+b*b);
	u=sqrt(a*a+b*b+c*c);

	xe1=xw1*(double)(-b/v)+yw1*(double)(a/v);
	ye1=xw1*((double)(-a*c)/(double)(u*v))+yw1*((double)(-b*c)/(double)(u*v))+zw1*(double)(v/u);
	ze1=xw1*(-a/u)+yw1*(-b/u)+zw1*(-c/u);
	xe2=xw2*(int)(-b/v)+yw2*(int)(a/v);
	ye2=xw2*((double)(-a*c)/(double)(u*v))+yw2*((double)(-b*c)/(double)(u*v))+zw2*(double)(v/u);
	ze2=xw2*(-a/u)+yw2*(-b/u)+zw2*(-c/u);

	xs1=xe1*zs1/ze1;
	ys1=ye1*zs1/ze1;
	xs2=xe2*zs2/ze2;
	ys2=ye2*zs2/ze2;

    pDC->MoveTo(xw1,yw1);
	pDC->LineTo(xw2,yw2);
    pDC->MoveTo(xs1,ys1);
	pDC->LineTo(xs2,ys2);
}