PIC2

说明：  用VB编写的简易的绘图程序，用来绘制直线圆和矩形，可以选择绘图颜色和画笔粗细。(VB, easy to use drawing program, circles and rectangles to draw a straight line, you can select the drawing pen color and thickness.)

Teechart绘图应用实例（随机线条、动态画线、画圆）(Teechart drawing application examples (random lines, dynamic draw lines, circle))

计算机图形学实验，完成立方体的三视图和等轴侧投影(Computer graphics experiments, the completion of three cube view and isometric projection)

VC++几何绘图实例，如何让CDC上输出的文字、图形具有保持功能，集合类CPtrArray的使用(failed to translate)

计算机辅助几何设计与非均匀有理b样条（修订版）施法中著；第6-7章附件(《CAGD & NURBS》)

cad文本输入，适合宗地号输入。地籍测绘作业宗地号预编使用。(cad text input, suitable parcel number input.Cadastral mapping operations parcel number pre-programmed to use.)

DDA算法画直线，可以实现在网格下逐点画直线。(DDA algorithm for drawing straight lines, can be achieved in a grid-by drawing straight line.)

Gompertz（龚伯次）曲线模型被广泛应用在预测中，该代码实现了G曲线的预测功能。(Gompertz curve is widely used in prediction, this code will help achieve the Gompertz curve prediction function.)

本文以电场的三大定理、连续超张弛迭代算法、拉格朗日插值算法等原理知识作为理论基础，以 C 语言为编程工具，将由根据以上物理和数学原理所推导出来的模型转化为可以计算像管内电势的 CAD 程序软件。所编写的程序可以在给定像管参数和电极电位的情况下，计算圆柱形像管内任意一点的电位大小，并绘制出像管内的等势线；拉格朗日插值得到对称轴上任一点的电位值。 (In this paper, we base on the three theorems of the electric field, continuous ultra-relaxation iterative algorithm, and Lagrange interpolation algorithm. We use the C language as a programming tools, and transform the model derived above into a CAD software to calculate the electric potential in the image tube. In case the image tube parameters and electrode potential are known, the program written can get the potential of every point in the image tube, and plot equipotential lines inside the image tube. It can also get the potential of every point on the axis of symmetry by Lagrange interpolation. )

代码是关于Peano-Hilbert曲线算法，属于图形学范畴(Code is on the Peano-Hilbert curve algorithm, belongs to the category Graphics)