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多Actor单独交互

挺常用的需求，其实只要使用 TrackballActor 即可。（不是**TrackballCamera**）

1 效果

xxx

2 项目地址

在官方案例基础上改的

3 原文

Vtk多个actor单独交互

4 实现

static QStringList filename {
    "./etc/STL/L5.STL",
    "./etc/STL/S1.STL",
    "./etc/STL/S2.STL",
};

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    vtkNew<vtkNamedColors> colors;
    vtkNew<vtkRenderer> renderer;
    renderer->SetBackground(colors->GetColor3d("SteelBlue").GetData());
    vtkNew<vtkRenderWindow> renderWindow;
    renderWindow->SetSize(640, 480);
    renderWindow->AddRenderer(renderer);
    renderWindow->SetWindowName("HighlightPicked");
    vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
    renderWindowInteractor->SetRenderWindow(renderWindow);
    vtkNew<vtkInteractorStyleTrackballActor> style;
    style->SetDefaultRenderer(renderer);
    renderWindowInteractor->SetInteractorStyle(style);
    foreach (auto var, filename) {
        vtkNew<vtkSTLReader> reader;
        reader->SetFileName(var.toLocal8Bit().data());
        vtkNew<vtkSphereSource> source;
        vtkNew<vtkPolyDataMapper> mapper;
        mapper->SetInputConnection(reader->GetOutputPort());
        vtkNew<vtkActor> actor;
        actor->SetMapper(mapper);
        actor->GetProperty()->SetSpecularColor(colors->GetColor3d("White").GetData());
        actor->GetProperty()->SetSpecularPower(30.0);
        renderer->AddActor(actor);
    }
    renderWindow->Render();
    renderWindowInteractor->Initialize();
    renderWindowInteractor->Start();

    return 0;
}