user-0 提问: 新人求助：算法结果可视化该怎么弄

回复:
user: user-1
content: 画箭头参考：#include <windows.h> #include <gdiplus.h> using namespace Gdiplus; #pragma comment(lib, "user32.lib") #pragma comment(lib, "gdi32.lib") #pragma comment(lib, "gdiplus.lib") VOID Example_SetStrokeCaps(HDC hdc) {    Graphics graphics(hdc);     //Create a Path, and add two lines to it.    Point points[3] = {Point(-2, -5), Point(0, 0), Point(2, -5)};    GraphicsPath capPath;    capPath.AddLines(points, 3);     // Create a CustomLineCap object.    CustomLineCap custCap(NULL, &capPath);     // Set the start and end caps for custCap.    custCap.SetStrokeCaps(LineCapRound, LineCapRound);    custCap.SetStrokeJoin(LineJoinRound);    // Create a Pen object, assign startStrokeCap and endStrokeCap as the    // start and end caps, and draw a line.    Pen strokeCapPen(Color(255, 255, 0, 255), 10.0f);    strokeCapPen.SetCustomEndCap(&custCap);    graphics.SetSmoothingMode(SmoothingModeHighQuality);    graphics.DrawLine(&strokeCapPen, Point(100, 100), Point(300, 100)); } VOID OnPaint(HDC hdc) {    Graphics     graphics(hdc);    Pen          pen(Color(255, 0, 0, 255));    FontFamily   fontFamily(L"宋体");    Font         font(&fontFamily, 12, FontStyleRegular, UnitPixel);    PointF       pointF1(30.0f, 60.0f),pointF2(230.0f, 60.0f);    SolidBrush   solidBrush(Color(255, 0, 0, 255));    StringFormat stringFormat;    WCHAR testString[] = L"Hello034∠你好";     stringFormat.SetFormatFlags(StringFormatFlagsDirectionVertical);     graphics.SetSmoothingMode(SmoothingModeDefault);    graphics.DrawLine(&pen, 0, 0, 200, 100);    graphics.DrawEllipse(&pen, 10, 10, 190, 90);    graphics.SetTextRenderingHint(TextRenderingHintSystemDefault);    graphics.DrawString(testString, -1, &font, pointF1, &stringFormat, &solidBrush);      graphics.SetSmoothingMode(SmoothingModeHighQuality);    graphics.DrawLine(&pen, 200, 0, 400, 100);    graphics.DrawEllipse(&pen, 210, 10, 190, 90);    graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);    graphics.DrawString(testString, -1, &font, pointF2, &stringFormat, &solidBrush);     Example_SetStrokeCaps(hdc); } LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {    HDC          hdc;    PAINTSTRUCT  ps;     switch(message) {    case WM_PAINT:       hdc = BeginPaint(hWnd, &ps);       OnPaint(hdc);       EndPaint(hWnd, &ps);       return 0;    case WM_DESTROY:       PostQuitMessage(0);       return 0;    default:       return DefWindowProc(hWnd, message, wParam, lParam);    } } INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, PSTR, INT iCmdShow) {    HWND                hWnd;    MSG                 msg;    WNDCLASS            wndClass;    GdiplusStartupInput gdiplusStartupInput;    ULONG_PTR           gdiplusToken;     GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);     wndClass.style          = CS_HREDRAW | CS_VREDRAW;    wndClass.lpfnWndProc    = WndProc;    wndClass.cbClsExtra     = 0;    wndClass.cbWndExtra     = 0;    wndClass.hInstance      = hInstance;    wndClass.hIcon          = LoadIcon(NULL, IDI_APPLICATION);    wndClass.hCursor        = LoadCursor(NULL, IDC_ARROW);    wndClass.hbrBackground  = (HBRUSH)GetStockObject(WHITE_BRUSH);    wndClass.lpszMenuName   = NULL;    wndClass.lpszClassName  = TEXT("GettingStarted");     RegisterClass(&wndClass);     hWnd = CreateWindow(       TEXT("GettingStarted"),   // window class name       TEXT("Getting Started"),  // window caption       WS_OVERLAPPEDWINDOW,      // window style       CW_USEDEFAULT,            // initial x position       CW_USEDEFAULT,            // initial y position       CW_USEDEFAULT,            // initial x size       CW_USEDEFAULT,            // initial y size       NULL,                     // parent window handle       NULL,                     // window menu handle       hInstance,                // program instance handle       NULL);                    // creation parameters     ShowWindow(hWnd, iCmdShow);    UpdateWindow(hWnd);     while(GetMessage(&msg, NULL, 0, 0)) {       TranslateMessage(&msg);       DispatchMessage(&msg);    }     GdiplusShutdown(gdiplusToken);     return 0; }

user: user-0
content: 引用 6 楼 zhao4zhong1 的回复:画箭头参考：#include <windows.h> #include <gdiplus.h> using namespace Gdiplus; #pragma comment(lib, "user32.lib") #pragma comment(lib, "gdi32.lib") #pragma comment(lib, "gdiplus.lib") VOID Example_SetStrokeCaps(HDC hdc) {    Graphics graphics(hdc);     //Create a Path, and add two lines to it.    Point points[3] = {Point(-2, -5), Point(0, 0), Point(2, -5)};    GraphicsPath capPath;    capPath.AddLines(points, 3);     // Create a CustomLineCap object.    CustomLineCap custCap(NULL, &capPath);     // Set the start and end caps for custCap.    custCap.SetStrokeCaps(LineCapRound, LineCapRound);    custCap.SetStrokeJoin(LineJoinRound);    // Create a Pen object, assign startStrokeCap and endStrokeCap as the    // start and end caps, and draw a line.    Pen strokeCapPen(Color(255, 255, 0, 255), 10.0f);    strokeCapPen.SetCustomEndCap(&custCap);    graphics.SetSmoothingMode(SmoothingModeHighQuality);    graphics.DrawLine(&strokeCapPen, Point(100, 100), Point(300, 100)); } VOID OnPaint(HDC hdc) {    Graphics     graphics(hdc);    Pen          pen(Color(255, 0, 0, 255));    FontFamily   fontFamily(L"宋体");    Font         font(&fontFamily, 12, FontStyleRegular, UnitPixel);    PointF       pointF1(30.0f, 60.0f),pointF2(230.0f, 60.0f);    SolidBrush   solidBrush(Color(255, 0, 0, 255));    StringFormat stringFormat;    WCHAR testString[] = L"Hello034∠你好";     stringFormat.SetFormatFlags(StringFormatFlagsDirectionVertical);     graphics.SetSmoothingMode(SmoothingModeDefault);    graphics.DrawLine(&pen, 0, 0, 200, 100);    graphics.DrawEllipse(&pen, 10, 10, 190, 90);    graphics.SetTextRenderingHint(TextRenderingHintSystemDefault);    graphics.DrawString(testString, -1, &font, pointF1, &stringFormat, &solidBrush);      graphics.SetSmoothingMode(SmoothingModeHighQuality);    graphics.DrawLine(&pen, 200, 0, 400, 100);    graphics.DrawEllipse(&pen, 210, 10, 190, 90);    graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);    graphics.DrawString(testString, -1, &font, pointF2, &stringFormat, &solidBrush);     Example_SetStrokeCaps(hdc); } LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {    HDC          hdc;    PAINTSTRUCT  ps;     switch(message) {    case WM_PAINT:       hdc = BeginPaint(hWnd, &ps);       OnPaint(hdc);       EndPaint(hWnd, &ps);       return 0;    case WM_DESTROY:       PostQuitMessage(0);       return 0;    default:       return DefWindowProc(hWnd, message, wParam, lParam);    } } INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, PSTR, INT iCmdShow) {    HWND                hWnd;    MSG                 msg;    WNDCLASS            wndClass;    GdiplusStartupInput gdiplusStartupInput;    ULONG_PTR           gdiplusToken;     GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);     wndClass.style          = CS_HREDRAW | CS_VREDRAW;    wndClass.lpfnWndProc    = WndProc;    wndClass.cbClsExtra     = 0;    wndClass.cbWndExtra     = 0;    wndClass.hInstance      = hInstance;    wndClass.hIcon          = LoadIcon(NULL, IDI_APPLICATION);    wndClass.hCursor        = LoadCursor(NULL, IDC_ARROW);    wndClass.hbrBackground  = (HBRUSH)GetStockObject(WHITE_BRUSH);    wndClass.lpszMenuName   = NULL;    wndClass.lpszClassName  = TEXT("GettingStarted");     RegisterClass(&wndClass);     hWnd = CreateWindow(       TEXT("GettingStarted"),   // window class name       TEXT("Getting Started"),  // window caption       WS_OVERLAPPEDWINDOW,      // window style       CW_USEDEFAULT,            // initial x position       CW_USEDEFAULT,            // initial y position       CW_USEDEFAULT,            // initial x size       CW_USEDEFAULT,            // initial y size       NULL,                     // parent window handle       NULL,                     // window menu handle       hInstance,                // program instance handle       NULL);                    // creation parameters     ShowWindow(hWnd, iCmdShow);    UpdateWindow(hWnd);     while(GetMessage(&msg, NULL, 0, 0)) {       TranslateMessage(&msg);       DispatchMessage(&msg);    }     GdiplusShutdown(gdiplusToken);     return 0; }  谢谢了，不过这个对我有一点太复杂了。我自己写了一个相对简单一点的，虽然不好看~~

user: user-2
content: 引用 4 楼 MisaKiq 的回复:[quote=引用 2 楼 u010165006 的回复:] 比如每一个节点都有(x,y)这对坐标，把节点所表示的网络图画出来，再把最短路径用特殊颜色再画一遍。 画图最简单的，可以使用EasyX。 太感谢了，真是帮大忙了。 但是这个好像没有画箭头的函数，有向图得有箭头，请问该怎么办啊[/quote]  这个画图是比较底层的，一个点、一条线都要自己画的。 你可以写一个函数画箭头，参数包括X、Y、方向、线型、粗细、颜色等等

user: user-0
content: 引用 2 楼 u010165006 的回复:比如每一个节点都有(x,y)这对坐标，把节点所表示的网络图画出来，再把最短路径用特殊颜色再画一遍。 画图最简单的，可以使用EasyX。 太感谢了，真是帮大忙了。 但是这个好像没有画箭头的函数，有向图得有箭头，请问该怎么办啊

user: user-1
content: 将算法结果保存为visio可导入的文件格式是不是就显得非常“高大上”了？

user: user-2
content: 比如每一个节点都有(x,y)这对坐标，把节点所表示的网络图画出来，再把最短路径用特殊颜色再画一遍。 画图最简单的，可以使用EasyX。

user: user-1
content: 在百度图片搜索中搜相关图片。