Python 停止VTK计时器回调
关于这个例子: 我在回调函数中做了一个小改动,在计时器计数达到一定数量后停止它Python 停止VTK计时器回调,python,c++,vtk,qvtkwidget,Python,C++,Vtk,Qvtkwidget,关于这个例子: 我在回调函数中做了一个小改动,在计时器计数达到一定数量后停止它 #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkPolyData.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkCommand.h> #include <v
#include <vtkSmartPointer.h>
#include <vtkSphereSource.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkCommand.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <iostream>
using namespace std;
class vtkTimerCallback2 : public vtkCommand
{
public:
static vtkTimerCallback2 *New()
{
vtkTimerCallback2 *cb = new vtkTimerCallback2;
cb->TimerCount = 0;
return cb;
}
virtual void Execute(vtkObject *caller, unsigned long eventId,
void * vtkNotUsed(callData))
{
if (vtkCommand::TimerEvent == eventId)
{
++this->TimerCount;
}
vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::SafeDownCast(caller);
std::cout << this->TimerCount << std::endl;
if(TimerCount<20)
{
actor->SetPosition(this->TimerCount, this->TimerCount,0);
iren->GetRenderWindow()->Render();
}
else
{
//iren->DestroyTimer();
//The following will print 1 if timer is destroyed
//And 0, if it is not destroyed
cout << "Timer Destroyed: " <<iren->DestroyTimer() << endl;;
}
}
private:
int TimerCount;
public:
vtkActor* actor;
};
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();
// Create a mapper and actor
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(sphereSource->GetOutputPort());
vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
// Create a renderer, render window, and interactor
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
// Add the actor to the scene
renderer->AddActor(actor);
renderer->SetBackground(1,1,1); // Background color white
// Render and interact
renderWindow->Render();
// Initialize must be called prior to creating timer events.
renderWindowInteractor->Initialize();
// Sign up to receive TimerEvent
vtkSmartPointer<vtkTimerCallback2> cb =
vtkSmartPointer<vtkTimerCallback2>::New();
cb->actor = actor;
renderWindowInteractor->AddObserver(vtkCommand::TimerEvent, cb);
int timerId = renderWindowInteractor->CreateRepeatingTimer(100);
std::cout << "timerId: " << timerId << std::endl;
// Start the interaction and timer
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
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使用名称空间std;
vtkTimerCallback2类:公共vtkCommand
{
公众:
静态vtkTimerCallback2*New()
{
vtkTimerCallback2*cb=新vtkTimerCallback2;
cb->TimerCount=0;
返回cb;
}
虚拟void Execute(vtkObject*调用者,未签名的长事件ID,
void*vtnotused(调用数据))
{
如果(vtkCommand::TimerEvent==eventId)
{
++这->时间计数;
}
vtkRenderWindowInteractor*iren=vtkRenderWindowInteractor::SafeDownCast(调用者);
std::cout TimerCount TimerCount,this->TimerCount,0);
iren->GetRenderWindow()->Render();
}
其他的
{
//iren->DestroyTimer();
//如果计时器被破坏,下面将打印1
//如果没有销毁,则为0
cout Update();
//创建映射器和参与者
VTKSmart指针映射器=
vtkSmartPointer::New();
映射器->设置输入连接(sphereSource->GetOutputPort());
vtkSmartPointer=vtkSmartPointer::New();
actor->SetMapper(映射器);
//创建渲染器、渲染窗口和交互器
VTKSmart指针渲染器=
vtkSmartPointer::New();
vtkSmartPointer渲染窗口=
vtkSmartPointer::New();
renderWindow->AddRenderer(渲染器);
vtkSmartPointer渲染器Windows WinterActor=
vtkSmartPointer::New();
RenderWindowWinterActor->SetRenderWindow(renderWindow);
//将演员添加到场景中
渲染器->AddActor(actor);
渲染器->背景设置(1,1,1);//背景颜色为白色
//渲染和交互
renderWindow->Render();
//必须在创建计时器事件之前调用Initialize。
renderWindowInteractor->Initialize();
//注册以接收TimerEvent
vtksmartcb=
vtkSmartPointer::New();
cb->actor=actor;
renderWindowInteractor->AddObserver(vtkCommand::TimerEvent,cb);
int timerId=renderWindowInteractor->CreateRepeatingTimer(100);
std::cout我自己解决了这个问题。基本上没有参数的DestroyTimer()是为了向后兼容而保留的。DestroyTimer(int-timerId)是需要调用的。
因此,以下各项现在可以完美地发挥作用:
#include <vtkSmartPointer.h>
#include <vtkSphereSource.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkCommand.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <iostream>
using namespace std;
class vtkTimerCallback2 : public vtkCommand
{
public:
int timerId;
static vtkTimerCallback2 *New()
{
vtkTimerCallback2 *cb = new vtkTimerCallback2;
cb->TimerCount = 0;
return cb;
}
virtual void Execute(vtkObject *caller, unsigned long eventId,
void * vtkNotUsed(callData))
{
if (vtkCommand::TimerEvent == eventId)
{
++this->TimerCount;
}
vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::SafeDownCast(caller);
std::cout << this->TimerCount << std::endl;
if(TimerCount<20)
{
actor->SetPosition(this->TimerCount, this->TimerCount,0);
iren->GetRenderWindow()->Render();
}
else
{
//iren->DestroyTimer();
//The following will print 1 if timer is destroyed
//And 0, if it is not destroyed
cout << "Timer Destroyed: " <<iren->DestroyTimer(this->timerId) << endl;
}
}
private:
int TimerCount;
public:
vtkActor* actor;
};
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();
// Create a mapper and actor
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(sphereSource->GetOutputPort());
vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
// Create a renderer, render window, and interactor
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
// Add the actor to the scene
renderer->AddActor(actor);
renderer->SetBackground(1,1,1); // Background color white
// Render and interact
renderWindow->Render();
// Initialize must be called prior to creating timer events.
renderWindowInteractor->Initialize();
// Sign up to receive TimerEvent
vtkSmartPointer<vtkTimerCallback2> cb =
vtkSmartPointer<vtkTimerCallback2>::New();
cb->actor = actor;
renderWindowInteractor->AddObserver(vtkCommand::TimerEvent, cb);
int timerId = renderWindowInteractor->CreateRepeatingTimer(100);
cb->timerId = timerId;
std::cout << "timerId: " << timerId << std::endl;
// Start the interaction and timer
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
#包括
使用名称空间std;
vtkTimerCallback2类:公共vtkCommand
{
公众:
int-timerId;
静态vtkTimerCallback2*New()
{
vtkTimerCallback2*cb=新vtkTimerCallback2;
cb->TimerCount=0;
返回cb;
}
虚拟void Execute(vtkObject*调用者,未签名的长事件ID,
void*vtnotused(调用数据))
{
如果(vtkCommand::TimerEvent==eventId)
{
++这->时间计数;
}
vtkRenderWindowInteractor*iren=vtkRenderWindowInteractor::SafeDownCast(调用者);
std::cout TimerCount TimerCount,this->TimerCount,0);
iren->GetRenderWindow()->Render();
}
其他的
{
//iren->DestroyTimer();
//如果计时器被破坏,下面将打印1
//如果没有销毁,则为0
cout设置半径(5.0);
sphereSource->Update();
//创建映射器和参与者
VTKSmart指针映射器=
vtkSmartPointer::New();
映射器->设置输入连接(sphereSource->GetOutputPort());
vtkSmartPointer=vtkSmartPointer::New();
actor->SetMapper(映射器);
//创建渲染器、渲染窗口和交互器
VTKSmart指针渲染器=
vtkSmartPointer::New();
vtkSmartPointer渲染窗口=
vtkSmartPointer::New();
renderWindow->AddRenderer(渲染器);
vtkSmartPointer渲染器Windows WinterActor=
vtkSmartPointer::New();
RenderWindowWinterActor->SetRenderWindow(renderWindow);
//将演员添加到场景中
渲染器->AddActor(actor);
渲染器->背景设置(1,1,1);//背景颜色为白色
//渲染和交互
renderWindow->Render();
//必须在创建计时器事件之前调用Initialize。
renderWindowInteractor->Initialize();
//注册以接收TimerEvent
vtksmartcb=
vtkSmartPointer::New();
cb->actor=actor;
renderWindowInteractor->AddObserver(vtkCommand::TimerEvent,cb);
int timerId=renderWindowInteractor->CreateRepeatingTimer(100);
cb->timerId=timerId;
标准::cout