如何通過vtkMatrix和std :: vector <cv::Point3f> 作為功​​能參數？

Question

我有一個類頭文件myclass.h

#ifndef MYCLASS_H
#define MYCLASS_H

#include <iostream>
#include <math.h>
#include <vector>

#include <vtkSmartPointer.h>
#include <vtkMatrix4x4.h>

#include <opencv2/highgui/highgui.hpp>
#include <opencv2/core/core.hpp>
#include <opencv/cv.h>

class myclass
{
 public:
     double compute(vtkMatrix4x4 *transMat, std::vector<Point3f>* sourcePoints);
};

  #endif // MYCLASS_H

我的myclass.cpp是：

#include <myclass.h>
#include <iostream>
#include <math.h>
#include <vector>

#include <vtkSmartPointer.h>
#include <vtkMatrix4x4.h>

#include <opencv2/highgui/highgui.hpp>
#include <opencv2/core/core.hpp>
#include <opencv/cv.h>

using namespace std;

double myclass::compute(vtkMatrix4x4 *transMat, std::vector<Point3f>* sourcePoints)
{
  double x;
  ......code for computing x......
  ................................
  return x;
}

當我實現時，這將返回錯誤：

 myclass myFunctions;
 std::vector<cv::Point3f> sourcePoints;
 vtkSmartPointer<vtkMatrix4x4> mat =  vtkSmartPointer<vtkMatrix4x4>::New();
 ...........mat and sourcePoints filled..................
 double c = myFunctions.compute(mat, sourcePoints);

我應該在頭文件中將vtkMatrix和sourcePoints聲明為私有屬性嗎？ 我被困在這一點上。

Answer 1

• 如果您使用的是智能指針，則必須堅持使用它們。 永遠不要嘗試“拉出指針”，請您破壞它的內部引用（並破壞其目的）。
• 傾向於通過引用傳遞矢量，而不是通過指針傳遞

---

class myclass
{
 public:
     double myclass::compute(vtkSmartPointer<vtkMatrix4x4> mat, const std::vector<Point3f>& sourcePoints)
};
double myclass::compute(vtkSmartPointer<vtkMatrix4x4> mat, const std::vector<Point3f>& sourcePoints)
{
  double x;
  ......code for computing x......
  ................................
  return x;
}

 // now you can call it in the desired way:   
 myclass myFunctions;
 std::vector<cv::Point3f> sourcePoints;
 vtkSmartPointer<vtkMatrix4x4> mat =  vtkSmartPointer<vtkMatrix4x4>::New();
 double c = myFunctions.compute(mat, sourcePoints);