说明：  C#二维三维图形绘制工程实例宝典第8章：三维图形。本章介绍了应用三维图形的基础知识，包括三维矩阵，变换和坐标体系等来创建各种三维图形，例如三维折线图，三维网格和曲面图，轮廓图，三维柱状图，四维切片图和三维复合图。
(Two-dimensional three-dimensional graphics drawing C# Projects Collection Chapter 8: three-dimensional graphics. This chapter describes the basics of three-dimensional graphics applications, including the three-dimensional matrix, transform and coordinate system, and to create a variety of three-dimensional graphics, such as three-dimensional line chart, three-dimensional grid and surface maps, contour maps, three-dimensional histogram, and three-dimensional four-dimensional slices Composite map.)