实现对精密星历数据的读取,并能内插出任意时间点卫星的位置,且能评定内插的精度....

全国省级及主要河流矢量地图样图(MapInfo格式)-china map (MapInfo format) -National and provincial major rivers vector map samples (MapInfo format)-china map (MapInfo format)

鹰眼功能实现地理信息系统数据的浏览,mapbasic编程-Hawkeye Function GIS data browser, mapinfo Programming

一种基于vc的gis矢量成图系统设计与实现-the gis vector maps System Design and Implementation

GIS座标算法 非常的方便 -GIS coordinates of the algorithm is very convenient

Mapobject+Delphi深入开发-Mapobject+ Delphi-depth development

这是前年6月份接的一个任务，等值线的处理，基于给定的经纬图，做等值线分析，对于gis程序人员来说，应该是有帮助的！哈哈，要用到mapx5和mapinfo和vb6-This is the year in June following a mandate, the contours, based on the ins and outs of a given map, so contour analysis, gis procedures for personnel, should be helpful! Ha ha, and use of MapInfo and mapx5 vb6

包括部分空间算法，如计算两坐标点距离、判断两坐标点是否相等、计算叉积、计算点积、判断点p是否在线段l上、计算点bp以点op为圆心逆时针旋转dAlpha(单位：弧度)后所在的坐标点位置、计算指定半径圆上指定角度的弦长、计算由起点坐标和终点坐标构成的线段在指定距离和指定方向的垂点坐标等空间算法-Including some space algorithms, such as calculating the distance between the two coordinates to determine whether the same two coordinates to calculate cross product, point multiplication calculation to determine whether point p on line l above the calculation point to point op for bp counterclockwise rotation center dAlpha (units : radian) after the location where the coordinates of points, calculated on the specified radius of a round angle specified chord length, calculated from the starting point coordinates and end coordinates of the line constitutes a specified distance and specified direction of the vertical space coordinate algorithm

本实例:为用VB代码实现的构建Delaunay三角网的生长算法。-This example: In order to realize the use of VB code to build the growth of Delaunay triangulation algorithm.

通过ArcGIS API来显示百度地图，叠加其他类型的地图成为可能，由于百度地图是自由坐标系，所以需要通过自定义图层实现叠加。

地图图元修改工具 可批量修改选定图层的地图图元Style。-map plan amendments yuan batch tools can be selected to amend the map layer map yuan Style.