一个GIS的程序, 一个GIS的程序,-A GIS procedure, a procedure for GIS, a GIS procedures

一个GIS地图的DOME，有基本功能：选择变、点选、矩形选择等等。-A GIS map of DOME, a basic function: to choose change, click, rectangular selection and so on.

VB＋MapX 实现图层的下拉功能.如打开中国地图,下拉至四川,再到成都地区地图-VB MapX realize the drop-down feature layers. Such as to open the map of China, the drop-down to Sichuan, Chengdu and then map

测量基础软件开发。包括前方交会，后方交会，后方交会等个种测量的平差。-measurement based software development. Including forward intersection, the rear intersection, the rear other species fair measurement of adjustment.

多边形拓扑关系生成方法实现，数据以shapefile线文件为基础。-Polygon topology generation method to achieve the data to shapefile line of the file-based.

自定义生成DXF文件组件库，包括画线、点、圆弧、圆/椭圆、文字、多边形、填充等等20多个功能。-Custom component library to generate DXF files, including the painting line, point, arc, circle/ellipse, text, polygon, filling more than 20 features and so on.

TinToPoint。 将不规则三角网转换成点坐标。实现栅格到矢量的转换。-TinToPoint. The irregular triangular net will transform coordinates. Realization grid to vector transformation.

应用vb语言，结合mapobjects控件，包含了gis的大部分基本功能-Application vb language, combined with mapobjects control, contains the basic functions of most of the gis

计算章动 岁差 极移的C++程序 输入北京时间，自动转换儒略日，儒略世纪，并计算章动 岁差 极移等

这是一篇关于ns2实现的文章，这里有一些有用的代码，还有一些实际代码jghbjnkml，；kgjnkml，lhbnjkm，lkjlk；jlkjk；ljl；kj；lkj；lkj；luyghlkjhlk