1、安装并配置好项目后，填写如下代码：

#pragma once#include <Standard_Handle.hxx>
#include <V3d_Viewer.hxx>
#include <OpenGl_GraphicDriver.hxx>
#include <WNT_Window.hxx>
#include <V3d_View.hxx>
#include <AIS_InteractiveContext.hxx>
#include <BRepPrimAPI_MakeBox.hxx>
#include <TopoDs_Shape.hxx>
#include <AIS_Shape.hxx>#include <QtWidgets/QMainWindow>
#include "ui_OCC1.h"
#include <QDebug>class V3d_Viewer;
class V3d_View;
class AIS_InteractiveContext;
class AIS_ViewController;class OCC1 : public QMainWindow
{Q_OBJECTpublic:OCC1(QWidget *parent = nullptr);~OCC1();void paintEvent(QPaintEvent* event);QPaintEngine* paintEngine() const;
private:Ui::OCC1Class ui;Handle(V3d_Viewer) viewer;Handle(V3d_View) view;Handle(WNT_Window) window;Handle(AIS_InteractiveContext) context;
};

#include "OCC1.h"OCC1::OCC1(QWidget *parent): QMainWindow(parent)
{ui.setupUi(this);Handle(Aspect_DisplayConnection) hAspect_DisplayConnect = new Aspect_DisplayConnection;Handle(OpenGl_GraphicDriver) driver = new OpenGl_GraphicDriver(hAspect_DisplayConnect);viewer = new V3d_Viewer(driver);view = viewer->CreateView();WId window_handle = (WId)winId();//WId win_handle = winId();window = new WNT_Window((Aspect_Handle)window_handle);view->SetWindow(window);if (!window->IsMapped()){window->Map();//打开窗口}view->SetBackgroundColor(Quantity_NOC_BLACK);view->MustBeResized();view->TriedronDisplay(Aspect_TOTP_LEFT_LOWER, Quantity_NOC_GOLD, 0.08, V3d_ZBUFFER);viewer->SetDefaultLights();setAttribute(Qt::WA_PaintOnScreen);context = new AIS_InteractiveContext(viewer);context->SetDisplayMode(AIS_Shaded, Standard_True);
}OCC1::~OCC1()
{}void OCC1::paintEvent(QPaintEvent* event)
{view->Redraw();
}QPaintEngine* OCC1::paintEngine() const
{return 0;
}

#include "OCC1.h"
#include <QtWidgets/QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);OCC1 w;w.show();return a.exec();
}

2、运行结果：