如何获取数据集的范围?也称为数据的边界框。使用StructuredPointsReader
读取数据。
答案 0 :(得分:7)
因为vtkStructuredPoints(vtkStructuredPointsReader上的GetOutput()的类型)是vtkDataSet的子类,所以可以使用vtkDataSet的GetBounds(double [6])函数。这是一个例子:
double bounds[6];
structuredPointsReader->Update();
structuredPointsReader->GetOutput()->GetBounds(bounds);
std::cout << "xmin: " << bounds[0] << " "
<< "xmax: " << bounds[1] << std::endl
<< "ymin: " << bounds[2] << " "
<< "ymax: " << bounds[3] << std::endl
<< "zmin: " << bounds[4] << " "
<< "zmax: " << bounds[5] << std::endl;