通用串口总线

本文提出地形图纸等高线的矢量化，进而提出生成三维地形模型的工程问题，阐述了扫描、预处理、细化等步骤-terrain contour drawings of vectorization, leading to formation of three-dimensional terrain model works, expounded the scanning, pretreatment steps such as thinning

测绘遥感领域，高斯投影。实现地理位置的正算和反算。输出结果-Mapping the field of remote sensing, Gaussian projection. Realize the positive operators and location backcalculation. Output

vc++ 开发 GIS 与 GPS ，提供在线首发GPS定位信息，显示坐标点，轨迹回放，GIS地图放大、缩小、选种等等操作。-vc development of GIS and GPS, the first online GPS signal coordinates, track intervals, GIS maps to zoom, selection, etc. operation.

读写中国地球空间数据交换格式源码-read and write Chinese geospatial data exchange format FOSS

本软件基于MAPX5.0控件的开发这个系统本来应该注重于查询的,但查询有点问题,精确查询还好,模糊查询是错误的,大家可以看我的代码,模糊查询应该和精确查询是一样的,只是查的是所有图层罢了.所以我想请教一下大家怎样可以模糊查询,看了代码,照着做了,好像还不是很行,^_^.现在想把它完善一下,改的地方有鹰眼和查询结果做为浮动窗口,地图自动适应窗体的改变,其他还没想好.-MAPX5.0 based on the software controls the development of the system should focus on the inquiry, but for some problems, precision inquiries Fortunately, fuzzy inquiry is wrong, we can look at my code, fuzzy inquiry and precise inquiry should be the same, just check all the layers is just . Therefore, I would like to ask you about how fuzzy inquiry, read code suffices to follow them, do not seem to be OK ,^_^. want it perfect now that the place has changed and the Eagle Eye as a result of inquiries floating window, the map automatically adapt to changes in the form, not to other good . Oh

电子地图查询系统 V0.90源代码，一个很不错的源码，希望对大家有所帮助-Electronic Map Query System V0.90 source, a very good source, we hope to help

1、示例程序的目录下必须有Map(地图数据)目录，方可正常运行，否则无法打开地图。 2、重新编译Delphi源代码前，需配置相关的组件环境。-1, the sample program directory must Map (map data) directory before normal operation, otherwise it is impossible to open the map. 2, Delphi recompile the source code, configuration of component environment.

Navit is a open source (GPL) car navigation system with routing engine. It s modular design is capable of using vector maps of various formats for routing and rendering of the displayed map. It s even possible to use multiple maps at a time. The GTK+ or SDL user interfaces are designed to work well with touch screen displays. Points of Interest of various formats are displayed on the map. The current vehicle position is either read from gpsd or directly from NMEA GPS sensors. The routing engine not only calculates an optimal route to your destination, but also generates directions and even speaks to you.

难得的VC开发的Mapbasic程序，采用OLE技术实现的。-VC rare MapBasic development of procedures, the use of OLE technology.

完整的基本图形绘制系统vc源码.rar 简单的gis的基本操作，对于初学gis和vc的人来说，应该是个不错的例子-integrity of the basic graphics rendering system vc source. Rar simple gis the basic operation for beginners gis vc and the people, should be a good example