vtkPolyData

vtkPolyData is a data structure used in 3D computer graphics to represent and store geometric shapes like surfaces, lines, and points. It organizes information about the shape’s vertices (points), connecting lines (edges), and surfaces (polygons), enabling efficient rendering, analysis, and manipulation of complex 3D models. Think of it as a digital blueprint that captures the structure of a 3D object, allowing software to visualize, modify, and analyze detailed shapes accurately. It's widely used in scientific visualization, engineering, and medical imaging for handling detailed 3D surface data.