一分钟实现三维网络地图发布3dwebGIS

Visual C++开发GIS系统开发实例剖析-Visual C++ Development of GIS system development examples of analysis

This documentation on SI47xx chips with registers and programming description-This is documentation on SI47xx chips with registers and programming description

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

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。

绘制多个工具栏的程序，简单方便，可以试一试-Drawing toolbar many procedures, simple, it can try

一个多少人踏遍铁鞋多找不到的GIS系统源码，今天我贴出来给大家共享-a number of people all over the iron shoes of unemployed GIS source, I affixed it to share

采用Arcobject 加VB开发的一套软件。可以实现：文本数据导入SDE，源码＋文档＋模型＋注释- Uses Arcobject to add the VB development set of software. May realize: The text data inducts SDE, the source code+ documents+ model+ annotation

MAPGIS6.7 软件狗. 使用户不需要狗即可以使用MAPGIS6.7.-MAPGIS6.7 soft dog. It makes users to use mapgis6.7 without hard dog.

This example programming for mapobject 2.4 like displaying SHP files or grid files (*.adf) with legend manipulation. So, you must install mapobject first for editing the sorce codes. But for the execute file you just run for it.-This is example programming for mapobject 2.4 like displaying SHP files or grid files (*.adf) with legend manipulation. So, you must install mapobject first for editing the sorce codes. But for the execute file you just run for it.

一分钟实现三维网络地图发布3dwebGIS-minutes to achieve a three-dimensional network map released 3dwebGIS