VTK/ITK/QT - 解析外部符号错误（LNK2001）

在建设我的代码VTK 7.0 Qt5.7和和ITK 4.5在Visual Studio 2013，我得到的错误如下：VTK/ITK/QT - 解析外部符号错误（LNK2001）

错误LNK2001 ：解析外部符号 “受保护：虚拟无效__cdecl vtkVRMLSource2 :: SetNthOutput（INT，类vtkDataObject *）”（？SetNthOutput @ vtkVRMLSource2 @@ MEAAXHPEAVvtkDataObject @@@ Z）

对应于该文件中的代码是这样的（ `vtkVRMLSource2.cxx``）：

#include "vtkVRML.h" 
#include "vtkVRMLSource2.h" 
#include "vtkVRMLImporter.h" 
#include "vtkObjectFactory.h" 
#include "vtkPolyData.h" 
#include "vtkProperty.h" 
#include "vtkActorCollection.h" 
#include "vtkActor.h" 
#include "vtkPointData.h" 
#include "vtkCellData.h" 
#include "vtkPolyDataMapper.h" 
#include "vtkRenderer.h" 
#include "vtkTransformPolyDataFilter.h" 
#include "vtkAppendPolyData.h" 
#include "vtkTransform.h" 
#include "vtkUnsignedCharArray.h" 
#include "vtkSmartPointer.h" 
#include "vtkFloatArray.h" 
#include "vtkDataObject.h" 
#include <stdio.h> 
#include <iostream> 
..... 
idx = 0; 
while ((actor = actors->GetNextActor())) 
{ 
mapper = vtkPolyDataMapper::SafeDownCast(actor->GetMapper()); 
if (mapper) 
    { 
    //mapper->GetInput()->Update(); 
    //vtkPolyData *newOutput = vtkPolyData::New(); 
    vtkPolyData *newOutput = mapper->GetInput(); 
    //newOutput->CopyInformation(mapper->GetInput()); 
    this->SetNthOutput(idx, newOutput); 
    ++idx; 
    newOutput->Delete(); 
    newOutput = NULL; 
    } 
}

而且vtkVRMLSource2.h文件是：

#include "vtkAlgorithm.h" 
#include "vtkDataObject.h" 
class vtkVRMLSource2 : public vtkAlgorithm{ 

public: 
int vtkTypeRevisionMacro(vtkVRMLSource2, vtkAlgorithm); 
void PrintSelf(ostream& os, vtkIndent indent); 
static vtkVRMLSource2 *New(); 
int NumberOfOutputs; 

vtkSetStringMacro(FileName) 
vtkGetStringMacro(FileName) 

int GetNumberOfOutputs(); 
vtkPolyData* GetOutput(int idx); 
vtkPolyData* GetOutput() { return this->GetOutput(0);} 

vtkSetMacro(Color,int) // usage example: this->SetColor(1); 
vtkGetMacro(Color,int) 
vtkBooleanMacro(Color,int) 

vtkSetMacro(Append,int) // usage example: this->SetAppend(1); 
vtkGetMacro(Append,int) 
vtkBooleanMacro(Append,int) 

protected: 
vtkVRMLSource2(); 
~vtkVRMLSource2(); 

void Execute(); 
void InitializeImporter(); 
void CopyImporterToOutputs(); 

char* FileName; 
vtkVRMLImporter *Importer; 
int Color; 
int Append; 

virtual void SetNthOutput(int num, vtkDataObject *output); 
private: 
    vtkVRMLSource2(const vtkVRMLSource2&); 
    void operator=(const vtkVRMLSource2&); 
};

我已经联系所有适当的VTK，ITK和Qt库在VS. 你能帮我吗？

来源

2017-05-09 Maria Tsourma

根据[这]（https://www.visitusers.org/index.php?title=VTK_6.0_Upgrade），你需要改变' this-> SetNthOutput（idx，newOutput）'到'this-> GetExecutive（） - > SetOutputData（idx，newOutput） – putu

您需要提供在头文件中声明的void SetNthOutput(int num, vtkDataObject *output)的定义。您可以通过添加这vtkVRMLSource2.cxx做到这一点：

void vtkVRMLSource2::SetNthOutput(int num, vtkDataObject *output) 
{ 
    //code goes here 
}

来源

2017-05-09 15:03:04

VTK/ITK/QT - 解析外部符号错误（LNK2001）

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