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### ▍China vector map shshape format for the secondary development of GIS maps, map of secondary development such as MapObjects,MapX ~

China vector map shshape format for the secondary development of GIS maps, map of secondary development such as MapObjects,MapX ~...

### ▍GPS control network optimization design source

space:nowrap;">GPS控制网优化设计源码GPS控制网优化设计源码GPS控制网优化设计源码GPS控制网优化设计源码GPS控制网优化设计源码GPS控制网优化设计源码...

Simple vehicle navigation systems, map matching, phone number, unit facilities, optimum path search...

### ▍Analysis on GIS buffer algorithm and its implementation

family:georgia, verdana, Arial, helvetica, sans-seriff;color:#4B4B4B;font-size:13px;line-height:20px;white-space:normal;background-color:#FFFFFF;">本算法是我根据网上的一篇论文提供的一种思路，自己编写代码实现的缓冲区算法，编写本算法的初衷只是为了服务...

### ▍Calculation of some point in time, the Sun azimuth and elevation

space:nowrap;"> 输入当地时间，当地经纬度（转化为弧度），输出太阳高度（弧度），方向（弧度），计算太阳某个地方某个时刻太阳位置的程序。 此程序算法可以移植到嵌入式设备上，作为太阳能电池板追踪每天太阳方...

### ▍Height adjustment with VB program

Height adjustment with VB program, this program was written back when my undergraduate, after personally testing could be done. And the program can be selected according to the distance or number of stations for adjustment of...

VB in traverse network adjustment program, this program was written back when my undergraduate, after personally testing could be done. And the program is carried out can be selected according to the wire distance adjustment...

### ▍Bezier curves

serif;font-size:14px;line-height:25px;text-indent:28px;white-space:normal;background-color:#FFFFFF;">Bezier curves (b é zier curve), also known as 贝兹 Curve or a beijiai curve, is a mathematical curve applies to two-dimensional graphics application. Vector graphics software to accurately draw th...

### ▍Nutation precession calculations

Calculate nutation precession of a C++ program to enter Beijing time, automatically convert Julian day, Julian centuries, and calculate nutation precession pole shift...

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