一个简单的等值线绘制程序，效果一般，原理可以参考一下

有关Shapefile的C语言函数库和源代码-Shapefile the C language library and source code

OpenSceneGraph是一款高性能的3D图形开发库。广泛应用在可视化仿真、游戏、虚拟现实、高端技术研发以及建模等领域。使用标准的C++和 OpenGL编写而成，可以运行在Windows系列、OSX、GNU/Linux、IRIX、Solaris、HP-Ux、AIX以及FreeBSD操作系统。-OpenSceneGraph is a high-performance 3D graphics development library. Widely used in visual simulation, games, virtual reality, high-technology research and development, as well as modeling and other fields. Using the standard C++ and written in OpenGL, you can run on Windows series, OSX, GNU/Linux, IRIX, Solaris, HP-Ux, AIX and FreeBSD operating systems.

070325 全部程序（多项式拟合标定、多种滤波方式）工件测量输出实际mm尺寸-070325 All procedures (polynomial fitting calibration, multi-filter approach) mm workpiece measuring the actual output size

功能很强位图文件显示程序-Features a strong display program bitmap file

对BMP图像进行灰度变换-BMP images to gray scale transformation

视觉定位系统，对孔程序，应用在各大视觉定位系统；美国cognex公司的核心-Visual positioning system, the procedures of the hole, applied in the major visual positioning system U.S. Cognex

计算机图形学课程作业 中点椭圆算法实现 -Computer Graphics coursework midpoint ellipse algorithm

这是OpenGL高级编程与可视化系统开发（系统开发篇）源码 -This is a high-level programming with OpenGL visualization system development (system development articles) source

opengl c++ 键盘鼠标交互 画圆 椭圆 矩形 三角形 旋转移动-opengl c++ keyboard and mouse interaction Circle Oval Rectangle Triangle rotational movement of the

一个用来提取颜色的小软件-used to extract a small color software