HSRW EOLab Wiki

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====== GIS Instructions ======

==== Anaconda Powershell Prompt ====

  * **Installing the right environment and packages**
We will use several special Python packages to process geodata and to interact with geodatabases. The following list is not comprehensive:

        * os
        * geopandas
        * shapely
        * sodapy
        * matplotlib
        * json
        * requests
        * etc. 

  * Create a new Anaconda environment. Do NOT install the packages in the base environment, e.g.
<code>
conda create -c conda-forge -n geo python=3 jupyterlab geopandas shapely matplotlib requests
</code>

<code>
conda activate geo
</code>


<code>
pip install sodapy 
</code>


<code>
cd ...
</code>

<code>
jupyter-lab
</code>

<code>
conda install -c conda-forge ... (or pip install ...)
</code>


(For more information, see the file attached {{ :c4ta:gis:instructions:conda-cheatsheet.pdf |}}).

{{ :c4ta:gis:instructions:qgis_workshop_day_1.pdf |}}

/* ===== Geoprocessing in QGIS I (Data Handling) =====

1. Introduction to GIS and motive (give examples: Medellin).
2. Open QGIS and provide a quick overview of the task at hand (layers in QGIS).
3. Task - collecting data from open resources and failures in obtaining and using the data.
*/

NEWS: [[https://www.ideam.gov.co/sala-de-prensa/noticia/ideam-el-icpet-de-ecopetrol-y-fundacion-natura-entregan-colombia-el-mapa-nacional-de-coberturas-de]]



===== Python Programming (Geoprocessing) =====

==== API ====

  * **What is an API?** 
APIs (Application Programming Interfaces) are essential for accessing and manipulating geospatial data. When using Python for geoprocessing, the API libraries available in the Python environment can be a powerful tool in GIS application.
{{ :c4ta:gis:instructions:api_example.png?nolink | SODA API}}

  * **Server: IDEAM | App Token**
An App Token is used to authenticate and access data from web services. This token ensures secure and authorized access to the geospatial data. By integrating APIs in Python, users can automate geoprocessing tasks, such as spatial analysis, data conversion, and map production. We will be using the Socrata Open Data API (SODA) with the Socrata Query Language (SoQL), you can:

  - **Access and visualize geospatial data**: Retrieve data from Socrata servers and display it on interactive maps.
  - **Perform spatial analysis**: Conduct operations like filtering, sorting, and aggregating geospatial data using SoQL queries.
  - **Manage GIS data**: Create, update, and delete spatial datasets and manage user permissions.


For further information, you can check the documentation from Socrata Developer Portal: [[https://dev.socrata.com/foundry/www.datos.gov.co/hp9r-jxuu|Socrata Developers]]

===== QGIS Workshop II =====