GlobeControl轨道飞行工具和显示指北针

[C#]

            ICommand cmd = new ControlsGlobeOrbitalFlyToolClass();

            cmd.OnCreate(axGlobeControl1.Object);

            if (cmd.Enabled) axGlobeControl1.CurrentTool = cmd as ITool;

            ITool tool = cmd as ITool;

            //显示指北针

            axGlobeControl1.GlobeViewer.NorthArrowEnabled = true;

            axGlobeControl1.GlobeDisplay.RefreshViewers();

[Qt C++]

    ICommandPtr cmd(CLSID_ControlsGlobeOrbitalFlyTool);   

    IDispatchPtr disp;

    m_IpGlobeControl->get_Object(&disp);

    cmd->OnCreate(disp);

    VARIANT_BOOL bEnable;

    hr = cmd->get_Enabled(&bEnable);

    if(bEnable)

    {

        m_IpGlobeControl->putref_CurrentTool(IToolPtr(cmd));

    }

    //显示指北针

    m_IpGlobeViewer->put_NorthArrowEnabled(VARIANT_TRUE);   

    M_IpGlobeDisplay->RefreshViewers();

指北针只有在当前工具是OrbitalFlyTool时才会显示