vtkPolyData

vtkPolyData is a class in the Visualization Toolkit (VTK), an open-source software system for 3D computer graphics, image processing, and visualization. It represents a geometric structure consisting of vertices, lines, polygons, and/or triangle strips. This class is fundamental in VTK for handling and manipulating polygonal data.

The primary components of vtkPolyData include points, cells, and data attributes. Points define the vertices of the geometry, while cells define the connectivity between these points, forming lines, polygons, or triangle strips. Data attributes can be associated with points, cells, or the entire dataset, allowing for the storage of additional information such as normals, colors, or scalars.

vtkPolyData supports various operations for manipulating polygonal data, such as filtering, mapping, and rendering. It provides a flexible and efficient way to represent and work with polygonal meshes in VTK applications. The class is widely used in scientific visualization, medical imaging, and computer graphics for tasks such as surface reconstruction, mesh generation, and data visualization.