the-four-order-Runge-Kutta-method.

一个简单的程序，可以绘制点、线、圆、方。可以保存成一定格式的图片文件。软件最大的问题是绘图基本在对应的鼠标事件里进行，而没有在paint方法里进行，可借鉴。(A simple program, you can draw points, lines, circles, square. Can be saved into a certain format image files. The biggest problem is the graphics software basic mouse events in the corresponding conduct, but not in the paint method in the conduct, we may learn.)

MFC下实现DDA算法、一般直线的Bresenham算法、Bresenham画圆算法 、中点圆整数优化(MFC DDA Bresenham )

VB编写的画图板，使用方便可以帮助代码学习。。(VB prepared the drawing board, easy to use can help the code to learn. .)

CAD下VBA二次开发，用来展高程点，txt文件，已经把离散点网格化了(CAD lower VBA secondary development, to show elevation point, txt file, has the discrete points of the grid)

绘画板~ C#小程序~ (Drawing board ~ C# Applet ~)

说明：  根据图框块自动识别图纸并预览打印。函数参数分别为：打印机名称，打印样式，打印纸张，打印份数，自动纸张，自动旋转，自动关闭，自动识别图框(Autoprint according to the drawing blocks.)

实现本机流量监控绘图，测试可用，方便安全(Netflow monitoring)

三次bezier曲线的绘制（其中调用pow（））。(The drawing of cubic Bezier curve (where pow ()).)

该程序实现了图形学中的一些算法，如画线、画圆，填充、直线多边形、扫描转换，扫描线消隐算法以及一个简单的Gouraud光照模型。(the realization of a number of graphics algorithms, painting lines, the Circle, filling, linear polygon scan conversion, Lines scanning algorithm and a simple scan illumination model.)

使用MFC创建单文档程序，在界面上画圆，单击可使圆放大、变色(MFC SDI DRAW CIRCLE, CLICK TO INFLATE THE CIRCLE AND CHANGE ITS COLOR)