How to use tflowmeter in talend etl

Spatial ETL tutorial: Integrating geospatial data into ETL processes

While you are downloading and installing the software, we would like to give you some basic information about how GeoSpatial Integration for Talend works:
The Spatial ETL plug-in extends Talend by providing access to spatial databases and formats such as Oracle Locator / Spatial, PostGIS, SpatiaLite, Shapefiles and Well-known Text (WKT). In addition, it expands the range of Talend components with a complete set of geometric operators such as area or length calculator, buffer, centroid, intersection and much more to automate spatial tasks and workflows.

In our spatial ETL tutorial we consider the following application example:
In a wind farm, each turbine is an individual site object (point). We would like to calculate the total area of ​​the wind farm. “Geometrically” we want to calculate the convex hull of all points that belong to this wind farm.

Our exercise consists of the following steps:

  1. Definition of the metadata for the new data source (shapefile)
  2. Definition of the Talend job in order to calculate the wind farm area with the help of a geometric operation
  3. Execution of the job and writing of the results to a file or database

With this simple process, you can determine the total area of ​​the wind farm. On this basis, further planning steps can then be carried out, for example in the area of ​​road construction or nature conservation.