VS+QT+OCC创建坐标界面

1、安装并配置好项目后，填写如下代码：

cpp 复制代码

#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_OBJECT

public:
    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;
};

cpp 复制代码

#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;
}

cpp 复制代码

#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：