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功能： 创建一个感知器神经网络的函数 格式： net = newp(PR，S，TF，LF) 说明： net为生成的感知机神经网络；PR为一个R2的矩阵，由R组输入向量中的最大值和最小值组成；S表示神经元的个数；TF表示感知器的激活函数，缺省值为硬限幅激活函数hardlim；LF表示网络的学习函数，缺省值为learnp 。 hardlim： 硬限幅激活函数，A = hardlim(N) 。 函数hardlim(N)在给定网络的输入矢量矩阵N时，返回该层的输出矢量矩阵A。当N中的元素大于等于零时，返回的值为l；否则为0。也就是说，如果网络的输入达到阈值，则硬限幅传输函数的输出为1；否则，为0。 learnp： 感知机的权值和阈值学习函数

>> net = newp([-2 2;-2 2],1) %创建一个神经元，输入为二维，大小都是-2~2net = Neural Network object: architecture: numInputs: 1 numLayers: 1 biasConnect: [1] inputConnect: [1] layerConnect: [0] outputConnect: [1] targetConnect: [1] numOutputs: 1 (**read**-only) numTargets: 1 (**read**-only) numInputDelays: 0 (**read**-only) numLayerDelays: 0 (**read**-only) subobject structures: inputs: {1x1 cell} of inputs layers: {1x1 cell} of layers outputs: {1x1 cell} containing 1 output targets: {1x1 cell} containing 1 target biases: {1x1 cell} containing 1 bias inputWeights: {1x1 cell} containing 1 input weight layerWeights: {1x1 cell} containing no layer weights functions: adaptFcn: 'trains' initFcn: 'initlay' performFcn: 'mae' trainFcn: 'trainc' parameters: adaptParam: .passes initParam: (none) performParam: (none) trainParam: .epochs, .goal, .show, .time weight and bias values: IW: {1x1 cell} containing 1 input weight matrix LW: {1x1 cell} containing no layer weight matrices b: {1x1 cell} containing 1 bias vector other: userdata: (user stuff)

>> net.IW{1,1} = [-1 1]; % w1,1 设置

>> net.b{1} = [1]; % b1 设置

>> p1 = [1;1]; % p1 输入 >> a1 = sim(net,p1) % 运行a1 = 1 % 输出结果

#**include** <vtkPolyDataMapper.h> #**include** <vtkObjectFactory.h> #**include** <vtkCommand.h> #**include** <vtkActor.h> #**include** <vtkSmartPointer.h> #**include** <vtkRenderWindow.h> #**include** <vtkRenderer.h> #**include** <vtkRenderWindowInteractor.h> #**include** <vtkInteractorStyle.h> #**include** <vtkPolyData.h> #**include** <vtkSphereSource.h> #**include** <vtkInteractorStyleTrackballCamera.h> // 一般类 **class** MyClass { **public**: **void** KeypressCallbackFunction(vtkObject* caller, **long** **unsigned** **int** eventId, **void*** callData ) { std::cout << "Caught event in MyClass" << std::endl; } }; // 继承自interactorstyle的类 **class** MyInteractorStyle : **public** vtkInteractorStyleTrackballCamera { **public**: **static** MyInteractorStyle* New(); vtkTypeMacro(MyInteractorStyle, vtkInteractorStyleTrackballCamera); **void** KeypressCallbackFunction(vtkObject* caller, **long** **unsigned** **int** eventId, **void*** callData ) { std::cout << "Caught event in MyInteractorStyle" << std::endl; } }; vtkStandardNewMacro(MyInteractorStyle); **int** main(**int**, **char** *[]) { // Create a sphere vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->SetCenter(0.0, 0.0, 0.0); sphereSource->SetRadius(5.0); sphereSource->Update(); vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(sphereSource->GetOutputPort()); // Create an actor vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); // A renderer and render window vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); // An interactor vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); MyClass myClass;

//直接将对象绑定到interactor上 renderWindowInteractor->AddObserver(vtkCommand::KeyPressEvent, &myClass, &MyClass::KeypressCallbackFunction); MyInteractorStyle* style = MyInteractorStyle::New();

//将interactorstyle引用绑定到interactor上 renderWindowInteractor->AddObserver(vtkCommand::KeyPressEvent, style, &MyInteractorStyle::KeypressCallbackFunction); vtkSmartPointer<MyInteractorStyle> style2 = vtkSmartPointer<MyInteractorStyle>::New(); renderWindowInteractor->AddObserver(vtkCommand::KeyPressEvent, style2, &MyInteractorStyle::KeypressCallbackFunction); renderer->AddActor(actor); renderer->SetBackground(1,1,1); // Background color white renderWindow->Render(); renderWindowInteractor->Start(); style->Delete(); **return** EXIT_SUCCESS; }

vtkImageData* GetOutput();