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### ▍Four parameter algorithm Python code

Because Arcgis provides only three and seven parameters inside the algorithm definition, but in practice may use a method with four parameters and Arcgis supports the Python language for secondary development, providing a four parameter algorithm, as long as the input parameter, you can calculate re...

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

This algorithm is based on the Internet provides a way for the paper, to write your own code to implement buffer algorithm, this algorithm is designed to service your own project, now posted for the convenience of everyone, so that we prevent any more trouble, but make sure you don't as a scholarly...

### ▍Osgeath tutorial

SgEarth is a cross-platform library, you can use Cmake version 2.6.2 or later to compile it.There are three ways you can obtain a osgearth source:Option1: using GITOsgEarth the source code hosted on GitHub, so we need a Git client. Featured TortoiseGit,SVN under Windows Git version of little turtle....

### ▍GPS control network optimization design source

GPS control network optimization design...

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

Enter the local time, the local latitude and longitude (converted to radians), the output height of the Sun (ARC), direction (ARC), the procedures for calculation of Sun position at some point somewhere in the Sun. This algorithm can be ported to embedded devices, as the solar array tracking...

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...

### ▍Osgearth compilation guide

The following document is a compilation of OSG and osgearth, the system requirements are as follows:Operating system: win7 Home Basic x64Compiler: vs2010Compiles successfully formed 4 directories, as follows:1 Open Scene Graph, C:Open SceneGraph2 OpenSceneGraph,C:OpenSceneGraph3 OSG, D:OSG4 osgEarth...

### ▍A large local angle of two points for two points

Application backgroundIn the measurement of physical, the azimuth of two points is often used, and the spherical coordinates of two points are known. Calculation of the earth as a sphere.Key TechnologyThrough two points of the earth's latitude and longitude coordinates, the calculation of the two po...

### ▍GIS image file manipulation basic package

Code includes a graphic file read and display the complete program code is the Foundation of a series of operations on graphics files....

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