游戏编程中的背景保存和恢复

实现地理坐标系的四参数转换，从80转54，或54转地方，只需知道参数即可，方便。-ARCGIS

fourier transform 2D

很有意思的程序，运行后会按照设定画迷宫并给出答案路径，能画非常复杂的迷宫-Very interesting process, after running a maze in accordance with the set painting and gives the answer to the path, can paint a very complex maze

用网格实现等值线生成，并且可以对等值线线条颜色自行设定。-With grid realize isogram generation, and can contour lines of their own color settings.

MOONBASE, 3D Landscape Demo

QR解码  C++  正常解码  二维码编码器，日本人编的，可以用，在下面框中写入内容，自动转为二维码-Two-dimensional encoder, the Japanese series, you can use the box below to write content, automatically become the two-dimensional code

北京大学遥感所的研究生图像处理讲义高级遥感数字图像处理（硕士生课程）之第十三章 离散图象变换-Peking University

用于读取IGES文件-IGES files for reading

用matlab实现图像彩色空间RGB,LUV,XYZ,LAB之间的转换-Image RGB color space, LUV, XYZ, the conversion between the LAB

============================================================ v3.0 自画直线，矩形，园 ============================================================ v2.8-2.9 完成所有功能，包括全选，拖动等，参见文档HDraw2.9.doc ============================================================ v2.7 修正画布随滚动条滚动的Bug 完善MouseMove的直线，矩形和椭圆识别