GPSTRACKER

GDAL 用于raster文件的读写功能-GDAL for raster file read and write functions

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.

从mif 文件中读取道路的源代码，希望对大家有帮助，-mif documents from the road to read the source code, we hope to help Ha ha

实现地理信息存储影像数据常用的TIFF格式解析，支持按行读取，按块读取，整体读取，抽稀读取，支持基于TFW格式的坐标位置读取。

delphi版本的mapobject的legend控件的源代码-delphi mapobject version of the legend of the source code control

mapx和vb开发的gis信息系统，实现了基本的各种功能，菜单比较多，还算不错-MapX and vb development gis information systems, the basic implementation of the various functions, menus are more fairly good

应用背景在物力大地测量学中，重力异常的计算，需要测量计算点的重力值和计算测量点的正常重力。计算正常重力时，需要已知计算点大地坐标，即经度、纬度和大地高，如果采用GPS采集数据，那么获得的大地坐标的参考椭球是WGS84。关键技术此程序，采用WGS84参考椭球参数，因此输入数据为WGS84大地坐标，顺序为，纬度、经度、大地高。输入文件为，Input.dat。输出文件为，output.txt。计算结果为，椭球面以上高程为h处的正常重力。如果将大地高设为0，那么计算结果为此点处参考椭球面上的正常重力。

HillshadeCommand.rar。　三维阴影的计算机内部实现。 以DLL形式。-HillshadeCommand.rar. Three dimensional shadow computer interior realization. By DLL form.

(地图信息系统)中使用的源程序，(地图信息系统)中使用的源程序-(Map information system) used in the source code, (map information system) used in the source code

本软件是一款集地图投影、坐标转换、GPS高程拟合和常用测绘工具于一身的共享软件。-This software is a set map projection, coordinate transformation, GPS Elevation fitting and mapping tools commonly used to share in the same software.