初步实现2轴的3D模型联动

HPPA/View3D.h

@@ -0,0 +1,74 @@
+#ifndef VIEW3D_H
+#define VIEW3D_H
+
+#include <QWidget>
+#include <QTimer>
+#include <QPoint>
+#include <QString>
+#include <QQuaternion>
+#include <QColor>
+
+#include <Qt3DCore/QEntity>
+#include <Qt3DCore/QTransform>
+#include <Qt3DExtras/Qt3DWindow>
+#include <Qt3DRender/QCamera>
+#include <Qt3DExtras/QOrbitCameraController>
+#include <Qt3DExtras/QPhongMaterial>
+#include <Qt3DRender/QSceneLoader>
+#include <Qt3DExtras/QCylinderMesh>
+
+class View3D : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit View3D(const QString& baseModelPath,
+        const QString& armModelPath,
+        QWidget* parent = nullptr);
+
+protected:
+    void showEvent(QShowEvent* event) override;
+    bool eventFilter(QObject* obj, QEvent* event) override;
+
+private:
+    void initScene();
+    void initCamera();
+    void updateCameraPosition();
+    void createAxes();
+
+private:
+    QString m_baseModelPath;
+    QString m_armModelPath;
+
+    Qt3DExtras::Qt3DWindow* m_view;
+    QWidget* m_container;
+    Qt3DCore::QEntity* m_rootEntity;
+
+    Qt3DCore::QEntity* m_baseEntity;
+    Qt3DCore::QEntity* m_armEntity;
+    Qt3DCore::QTransform* m_armTransform;
+    Qt3DCore::QTransform* m_baseTransform;
+
+    QTimer m_timer;
+    float m_angle = 0;    // arm auto rotation
+    float m_t = 0;
+
+    // ----- Camera control -----
+    Qt3DRender::QCamera* m_camera = nullptr;
+    float m_distance = 5000.0f;
+    float m_yawDeg = 0.0f;
+    float m_pitchDeg = 0.0f;
+    QVector3D m_viewCenter = QVector3D(1000, 1000, -1000);
+
+    // Mouse state
+    bool m_mouseDragging = false;       // left button: orbit
+    bool m_middleDragging = false;      // middle button: pan
+    QPoint m_lastMousePos;
+
+    Qt3DCore::QTransform* m_baseRootTransform = nullptr;
+    Qt3DCore::QTransform* m_armRootTransform = nullptr;
+
+public Q_SLOTS:
+    void setLoc(std::vector<double> loc);
+};
+
+#endif // VIEW3D_H