AHTSE

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Apache HTTPD Tile Server Ecosystem

AHTSE 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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# AHTSE

## Apache HTTPD Tile Server Ecosystem

AHTSE is a collection of Apache httpd modules that can be used independently 
or combined to implement high performance and scalable tile services. 
While developed for geospatial applications, AHTSE can be used in other domains 
that need fast pan and zoom access to large datasets.
The main AHTSE common feature that provides interoperability is the tile request 
format. The tile request supported by ATHSE is a REST request 
which ends with four integer values, path encoded as **"tile/M/Level/Row/Column"**, 
called an **MLRC** tile address.  The _Level - Row - Column_ values are the usual 
tile and pyramid addressing values, while _M_ is a server defined, multi-purpose 
value, exposing one or more extra dimensions of the served dataset. The _M_ parameter 
is the only optional one, it defaults to zero when only three numerical parametes are 
available at the end of the URL.

## **AHTSE Components**

|Type|Name|Function|
|-|-|-|
|*Common*|**[AHTSE](../..)**|Top level AHTSE project, contains useful scripts to build AHTSE|
||**[libahtse](https://github.com/lucianpls/libahtse)**|common code, shared by AHTSE modules|
||**[libicd](https://github.com/lucianpls/libicd)**|Raster format codecs with uniform access API|
|*Source*|**[mrf](https://github.com/lucianpls/mod_mrf)**|Serves tiles from an MRF file|
||**[ecache](https://github.com/lucianpls/mod_ecache)**|Serves tiles from an esri bundle cache, also cache other tile services|
||**[fractile](https://github.com/lucianpls/mod_fractiles)**|Generates tiles of a fractal as a test source|
|*Transform*|**[retile](https://github.com/lucianpls/mod_retile)**|Projection, tile grid and scale, format change|
||**[convert](https://github.com/lucianpls/mod_convert)**|Data values and type conversions|
||**[fillin](https://github.com/lucianpls/mod_fillin)**|Fill in missing tiles by oversampling lower resolution levels. It can be used to fill in sparse datasets, or to add oversampled levels.|
||**[pngmod](https://github.com/lucianpls/mod_pngmod)**|PNG manipulation module, without a full transcode|
||**[tartiles](https://github.com/lucianpls/mod_tartiles)**|Request multiple tiles at once, packed in a streaming tar file|
|*Protocol*|**[twms](https://github.com/lucianpls/mod_twms)**|Converts requests from tWMS protocol to AHTSE style|
|*Utilities*|**[receive](https://github.com/lucianpls/mod_receive)**|Subrequest filter that enables passing tile data between AHTSE components|
||**[sendifmatch](https://github.com/lucianpls/mod_sfim)**|Used for protocol handshake files, it responds with the content from a static file to requests matching specific patterns|
||**[brunsli](https://github.com/lucianpls/mod_brunsli)**|Filter to convert between JPEG JFIF and brunsli on the fly|
||**[lua](https://github.com/lucianpls/mod_ahtse_lua)**|Allows AHTSE modules to be extended with Lua scripts|

## Getting Started

This repository contains a few bash scripts that can be used to build most of the AHTSE components on an Amazon Linux instance. [bootstrap.bash](bootstrap.bash) is the main build script

AHTSE

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