VTK读取UnstructuredGrid.vtk文件数据显示

数据放在标准的vtk文件中，格式为UnstructuredGrid

使用vtkDataSetReader读取

#include <vtkSmartPointer.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include "vtkDataSetMapper.h"
#include "vtkDataSetReader.h"
#include "vtkProperty.h"
#include "vtkDataSetMapper.h"

int main(int argc, char *argv[])
{
	vtkSmartPointer < vtkDataSetReader> dataSetReader
		= vtkSmartPointer<vtkDataSetReader>::New();
	vtkSmartPointer<vtkDataSetMapper> mapper
		= vtkSmartPointer<vtkDataSetMapper>::New();
	vtkSmartPointer<vtkActor> actor
		= vtkSmartPointer<vtkActor>::New();
	vtkSmartPointer<vtkRenderer> renderer
		= vtkSmartPointer<vtkRenderer>::New();
	vtkSmartPoin