Qt Quick 3D - 自定义几何图形范例

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#ifndef EXAMPLEGEOMETRY_H
#define EXAMPLEGEOMETRY_H
#include <QQuick3DGeometry>
class ExampleTriangleGeometry : public QQuick3DGeometry
{
    Q_OBJECT
    QML_NAMED_ELEMENT(ExampleTriangleGeometry)
    Q_PROPERTY(bool normals READ normals WRITE setNormals NOTIFY normalsChanged)
    Q_PROPERTY(float normalXY READ normalXY WRITE setNormalXY NOTIFY normalXYChanged)
    Q_PROPERTY(bool uv READ uv WRITE setUV NOTIFY uvChanged)
    Q_PROPERTY(float uvAdjust READ uvAdjust WRITE setUVAdjust NOTIFY uvAdjustChanged)
public:
    ExampleTriangleGeometry();
    bool normals() const { return m_hasNormals; }
    void setNormals(bool enable);
    float normalXY() const { return m_normalXY; }
    void setNormalXY(float xy);
    bool uv() const { return m_hasUV; }
    void setUV(bool enable);
    float uvAdjust() const { return m_uvAdjust; }
    void setUVAdjust(float f);
signals:
    void normalsChanged();
    void normalXYChanged();
    void uvChanged();
    void uvAdjustChanged();
private:
    void updateData();
    bool m_hasNormals = false;
    float m_normalXY = 0.0f;
    bool m_hasUV = false;
    float m_uvAdjust = 0.0f;
};
class ExamplePointGeometry : public QQuick3DGeometry
{
    Q_OBJECT
    QML_NAMED_ELEMENT(ExamplePointGeometry)
public:
    ExamplePointGeometry();
private:
    void updateData();
};
#endif