MFC实现CIE1931

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// MFCDrawCIEDlg.h: 头文件
//


```cpp
#pragma once
#include<vector>
#include<iostream>
#include<fstream>
#include<string>using namespace std;// CMFCDrawCIEDlg 对话框
class CMFCDrawCIEDlg : public CDialogEx
{
// 构造
public:CMFCDrawCIEDlg(CWnd* pParent = nullptr);    // 标准构造函数~CMFCDrawCIEDlg();
// 对话框数据
#ifdef AFX_DESIGN_TIMEenum { IDD = IDD_MFCDRAWCIE_DIALOG };
#endifprotected:virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持// 实现
protected:HICON m_hIcon;// 生成的消息映射函数virtual BOOL OnInitDialog();afx_msg void OnSysCommand(UINT nID, LPARAM lParam);afx_msg void OnPaint();afx_msg HCURSOR OnQueryDragIcon();DECLARE_MESSAGE_MAP()
public:struct _node{double x;double y;};vector<struct _node>leftArray;vector<struct _node>rightArray;vector<struct _node>downArray;vector<double> mySmallx;vector<double> mySmally;vector<double> mySmallz;volatile HANDLE m_ListenThread;static UINT WINAPI ListenThreadFunc(PVOID arglist);void PaintCie();afx_msg void OnSize(UINT nType, int cx, int cy);void DrawCIE(CPaintDC& dc, CRect& rcWnd);void XYZ2RGB(float x, float y, float z, int& r, int& g, int& b);
};


// MFCDrawCIEDlg.cpp: 实现文件
//```cpp
#include "pch.h"
#include "framework.h"
#include "MFCDrawCIE.h"
#include "MFCDrawCIEDlg.h"
#include "afxdialogex.h"#ifdef _DEBUG
#define new DEBUG_NEW
#endif// 用于应用程序“关于”菜单项的 CAboutDlg 对话框class CAboutDlg : public CDialogEx
{
public:CAboutDlg();// 对话框数据
#ifdef AFX_DESIGN_TIMEenum { IDD = IDD_ABOUTBOX };
#endifprotected:virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持// 实现
protected:DECLARE_MESSAGE_MAP()
};CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX)
{
}void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{CDialogEx::DoDataExchange(pDX);
}BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()// CMFCDrawCIEDlg 对话框CMFCDrawCIEDlg::CMFCDrawCIEDlg(CWnd* pParent /*=nullptr*/): CDialogEx(IDD_MFCDRAWCIE_DIALOG, pParent), m_ListenThread(NULL)
{m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}CMFCDrawCIEDlg::~CMFCDrawCIEDlg()
{if (m_ListenThread)CloseHandle(m_ListenThread);
}void CMFCDrawCIEDlg::DoDataExchange(CDataExchange* pDX)
{CDialogEx::DoDataExchange(pDX);
}BEGIN_MESSAGE_MAP(CMFCDrawCIEDlg, CDialogEx)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_WM_SIZE()
END_MESSAGE_MAP()// CMFCDrawCIEDlg 消息处理程序BOOL CMFCDrawCIEDlg::OnInitDialog()
{CDialogEx::OnInitDialog();// 将“关于...”菜单项添加到系统菜单中。// IDM_ABOUTBOX 必须在系统命令范围内。ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);ASSERT(IDM_ABOUTBOX < 0xF000);CMenu* pSysMenu = GetSystemMenu(FALSE);if (pSysMenu != nullptr){BOOL bNameValid;CString strAboutMenu;bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);ASSERT(bNameValid);if (!strAboutMenu.IsEmpty()){pSysMenu->AppendMenu(MF_SEPARATOR);pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);}}// 设置此对话框的图标。  当应用程序主窗口不是对话框时，框架将自动//  执行此操作SetIcon(m_hIcon, TRUE);            // 设置大图标SetIcon(m_hIcon, FALSE);        // 设置小图标// TODO: 在此添加额外的初始化代码string temp;DOUBLE data = 0;fstream xData("x.csv", ios::in);if (xData.is_open()){while (getline(xData, temp)){data = atof(temp.c_str());if (data > 0){mySmallx.push_back(data);}}}fstream yData("y.csv", ios::in);if (yData.is_open()){while (getline(yData, temp)){data = atof(temp.c_str());if (data > 0){mySmally.push_back(data);}}}//1:选择3个顶点struct _node p1; // 代表最下面的点struct _node p2; // 代表最上面的点struct _node p3; // 代表最右边的点p1.x = 0.173101;p1.y = 0.004774;p2.x = 0.082053;p2.y = 0.83409;p3.x = 0.73469;p3.y = 0.26531;double k3 = 0;double b3 = 0;k3 = (p3.y - p1.y) / (p3.x - p1.x);b3 = p3.y - p3.x * k3;struct _node tempPoint;for (int i = 0; i < mySmallx.size(); i++){tempPoint.x = mySmallx[i];tempPoint.y = mySmally[i];if (i < 161){  leftArray.push_back(tempPoint);if (i == 160){rightArray.push_back(tempPoint);}}else if (i >= 160 && i < 339){rightArray.push_back(tempPoint);}}for (double y = 0.001; y < 0.265; y += 0.001){if (y > p1.y&& y < p3.y){tempPoint.x = (y - b3) / k3;tempPoint.y = y;downArray.push_back(tempPoint);}}UINT ThreadId = 0;m_ListenThread = (HANDLE)_beginthreadex(nullptr, 0, ListenThreadFunc, this, 0, &ThreadId);if (m_ListenThread){return FALSE;}return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE
}UINT WINAPI CMFCDrawCIEDlg::ListenThreadFunc(PVOID arglist)
{CMFCDrawCIEDlg* pThis = reinterpret_cast<CMFCDrawCIEDlg*>(arglist);while (true){pThis->PaintCie();Sleep(200);}return 0;
}void CMFCDrawCIEDlg::PaintCie()
{}void CMFCDrawCIEDlg::OnSysCommand(UINT nID, LPARAM lParam)
{if ((nID & 0xFFF0) == IDM_ABOUTBOX){CAboutDlg dlgAbout;dlgAbout.DoModal();}else{CDialogEx::OnSysCommand(nID, lParam);}
}// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。  对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。void CMFCDrawCIEDlg::OnPaint()
{if (IsIconic()){CPaintDC dc(this); // 用于绘制的设备上下文SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);// 使图标在工作区矩形中居中int cxIcon = GetSystemMetrics(SM_CXICON);int cyIcon = GetSystemMetrics(SM_CYICON);CRect rect;GetClientRect(&rect);int x = (rect.Width() - cxIcon + 1) / 2;int y = (rect.Height() - cyIcon + 1) / 2;// 绘制图标dc.DrawIcon(x, y, m_hIcon);}else{CPaintDC dc(this);CRect rcWnd;GetClientRect(&rcWnd);CBrush brush(RGB(255, 255, 255));CRect rc;rc.left = rcWnd.Width() / 10;rc.right = rcWnd.Width() * 9 / 10;rc.top = rcWnd.Height() / 10;rc.bottom = rcWnd.Height() * 9 / 10;dc.FillRect(&rc, &brush);CPen bPen;CPen* pOldPen = nullptr;bPen.CreatePen(PS_SOLID, 2, RGB(68, 80, 110));pOldPen = dc.SelectObject(&bPen);dc.SetBkMode(TRANSPARENT);dc.MoveTo(rc.left, rc.top);dc.LineTo(rc.right, rc.top);dc.MoveTo(rc.left, rc.bottom);dc.LineTo(rc.right, rc.bottom);dc.MoveTo(rc.left, rc.top);dc.LineTo(rc.left, rc.bottom);dc.MoveTo(rc.right, rc.top);dc.LineTo(rc.right, rc.bottom);//绘制CIEDrawCIE(dc, rcWnd);bPen.DeleteObject();dc.SelectObject(pOldPen);CDialogEx::OnPaint();}
}void CMFCDrawCIEDlg::DrawCIE(CPaintDC& dc, CRect& rcWnd)
{double tempx = 0, tempy = 0;double miny = 0, maxy = 0;double minx = 0, maxx = 0;double middlex = 0;double minvalue1 = 999999;double minvalue2 = 999999;int maxindex = 0, minindex = 0;for (int j = 0; j < 1000; j++){tempy = (double)j / 1000.0;if (tempy < 0.004774 || tempy > 0.83409){continue;}for (int i = 0; i < 1000; i++){tempx = (double)i / 1000.0;if (tempx < 0.003636 || tempx > 0.73469){continue;}//1:首先判断左边的数组maxindex = 0;minindex = 0;minvalue2 = 999999;minvalue1 = 999999;for (int k = 0; k < (int)leftArray.size(); k++){double value1 = tempy - leftArray.at(k).y;double value2 = leftArray.at(k).y - tempy;if (value1 < minvalue1 && value1 > 0){minvalue1 = value1;minindex = k;}if (value2 < minvalue2 && value2 > 0){minvalue2 = value2;maxindex = k;}}miny = leftArray.at(minindex).y;minx = leftArray.at(minindex).x;maxy = leftArray.at(maxindex).y;maxx = leftArray.at(maxindex).x;middlex = minx - (tempy - miny) / (maxy - miny) * (minx - maxx);if (tempx < middlex){continue;}//1:首先判断右边的数组maxindex = 0;minindex = 0;minvalue2 = 999999;minvalue1 = 999999;for (int k = 0; k < (int)rightArray.size(); k++){double value1 = tempy - rightArray.at(k).y;double value2 = rightArray.at(k).y - tempy;if (value1 < minvalue1 && value1 > 0){minvalue1 = value1;minindex = k;}if (value2 < minvalue2 && value2 > 0){minvalue2 = value2;maxindex = k;}}miny = rightArray.at(minindex).y;minx = rightArray.at(minindex).x;maxy = rightArray.at(maxindex).y;maxx = rightArray.at(maxindex).x;middlex = minx - (tempy - miny) / (maxy - miny) * (minx - maxx);if (tempx > middlex){continue;}//*(cie->imageData + (1000-j)*cie->widthStep + i) = 0;//1:首先判断下边的数组maxindex = 0;minindex = 0;minvalue2 = 999999;minvalue1 = 999999;for (int k = 0; k < (int)downArray.size(); k++){double value1 = tempy - downArray.at(k).y;double value2 = downArray.at(k).y - tempy;if (value1 < minvalue1 && value1 > 0){minvalue1 = value1;minindex = k;}if (value2 < minvalue2 && value2 > 0){minvalue2 = value2;maxindex = k;}}miny = downArray.at(minindex).y;minx = downArray.at(minindex).x;maxy = downArray.at(maxindex).y;maxx = downArray.at(maxindex).x;middlex = minx - (tempy - miny) / (maxy - miny) * (minx - maxx);if (tempx > middlex){continue;}double x = 0, y = 0, z = 0;x = tempx;y = tempy;z = 1 - x - y;int R = 0, G = 0, B = 0;XYZ2RGB(x, y, z, R, G, B);INT XX = 0, YY = 0;XX = rcWnd.Width() * (0.1f + x / 0.8f * 8 / 10);YY = rcWnd.Height() * (0.1f + y / 0.9 * 8 / 10);dc.SetPixel(XX, YY, RGB(R, G, B));    }}}void CMFCDrawCIEDlg::XYZ2RGB(float x, float y, float z, int& r, int& g, int& b)
{double dr, dg, db;dr = 0.4185 * x - 0.1587 * y - 0.0828 * z;dg = -0.0912 * x + 0.2524 * y + 0.0157 * z;db = 0.0009 * x - 0.0025 * y + 0.1786 * z;double max = 0;max = dr > dg ? dr : dg;max = max > db ? max : db;dr = dr / max * 255;dg = dg / max * 255;db = db / max * 255;dr = dr > 0 ? dr : 0;dg = dg > 0 ? dg : 0;db = db > 0 ? db : 0;if (dr > 255){dr = 255;}if (dg > 255){dg = 255;}if (db > 255){db = 255;}r = int(dr + 0.5);g = int(dg + 0.5);b = int(db + 0.5);}//当用户拖动最小化窗口时系统调用此函数取得光标
//显示。
HCURSOR CMFCDrawCIEDlg::OnQueryDragIcon()
{return static_cast<HCURSOR>(m_hIcon);
}void CMFCDrawCIEDlg::OnSize(UINT nType, int cx, int cy)
{CDialogEx::OnSize(nType, cx, cy);Invalidate();UpdateWindow();// TODO: 在此处添加消息处理程序代码
}

运行结果：不是很完善，还需要调整坐标方向。

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