用VB开发的用于开发第一莫MapObjects也许很有用

gis 底层开发-gis underlying the development of

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.

最优路径 地理信息系统-optimal path Geographic Information System

一个关于地图矢量化的小程序。包括点采集，线采集，面采集-a vector map of the small program. Including Collection, the line acquisition, etc. Surface Collection

实现了shape数据的加载和GIS基本功能，以及图层管理功能（图层的上下移动、删除等）-realized the shape of data loading and basic GIS functions, and the layer management functions (the next layer of Mobile, delete, etc.)

应用背景从SRTM3网站上下载下来的数据，点密度太大，给使用带来不便，程序目的是降低点密度，使其分辨率降低，通过相邻点删除的方式，使其分辨率降低，但仍然保持原来点方阵的格式，例如，原来是n×n，即n行n列，降低密度后，变为原来的一半。n/2*n/2，即n/2行，n/2列。如果n为偶数，则n/2=int（n/2）+1关键技术 程序分两个 separate_jshu.f 和 separate_oushu.f 。输入文件分别为 Input_jshu.dat 和 Input.dat. 即，当原文件 n×n中n为奇数时，使用前一个程序，新生成的文件为 jishu.dat. 新生成行列为 n/2=int（n/2）+1。当原件n×n 中 n 为偶数时，使用后一个文件，新生成文件为 oushu.dat 新生成行列为 n/2.

数字摄影测量中的坐标转换,主要涉及坐标系的旋转，平移-digital photogrammetry coordinate conversion, mainly related to the rotating coordinate system, the translation

mapobject二次开发教程，是基于mapobject开发地理信息系统的参考书-mapobject secondary development guidance mapobject is based on the development of geographic information system reference books

源码GIS系统代码，有研究意义，多试用试用 -source GIS system code, some significance, more probation probation

首先安装MapX控件，该实例能够实现地图标注，缓冲区查询分析，图层控制管理等主要功能。-first install MapX, the case can be achieved marked maps, a buffer for analysis, control and management layers main functions.