VTK库在Windows11中的N维数组操作与vtkDenseArray详解,

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开发环境：

• Windows 11 家庭中文版
• Microsoft Visual Studio Community 2019
• VTK-9.3.0.rc0
• vtk-example
• 参考代码

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demo解决问题：N维数组，类似于numpy; 主要感受下调用接口功能: GetExtents() getBegin() getEnd() 参考：vtkInteractorStyle详细介绍

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# include <vtkDenseArray.h>
# include <vtkNew.h>

int main(int, char*[])
{
  vtkNew<vtkDenseArray<double>> array;

  array->Resize(5, 5);

  array->SetValue(4, 4, 5.0);

  std::cout << array->GetValue(4, 4) << std::endl;

  return EXIT_SUCCESS;
}

# include <vtkDenseArray.h>
# include <vtkNew.h>

int main(int, char*[])
{
  // Create an N-D array
  vtkNew<vtkDenseArray<double>> array;

  // Resize the array to 4x5x3
  array->Resize(4, 5, 3);

  // Set a value
  int i = 0;
  int j = 0;
  int k = 0;
  double value = 3.0;
  array->SetValue(i, j, k, value);

  // Get a value
  std::cout << array->GetValue(i, j, k) << std::endl;

  //Returns the extents (the number of dimensions and size along each dimension) of the array.
  // Get size (bounds) of whole array
  cout << array->GetExtents() << endl;//[0,4)x[0,5)x[0,3)

  // Get size (bounds) of array dimensions
  std::cout << array->GetExtents()[0] << std::endl;//[0, 4)
  std::cout << array->GetExtents()[1] << std::endl;//[0, 5)
  std::cout << array->GetExtents()[2] << std::endl;//[0, 3)

  // Get the bounds of the 0th dimension
  std::cout << array->GetExtents()[0].GetBegin() << std::endl;//0
  std::cout << array->GetExtents()[0].GetEnd() << std::endl;//4

  return EXIT_SUCCESS;
}