Contents
How are spatial ETL tools used in FME?
Spatial ETL tools are user-created geoprocessing tools that can transform data between different data models and different file formats. You create them with FME Workbench in a translation workspace and save them in a toolbox.
Which is the best definition of spatial ETL?
What is Spatial ETL? A term coined by Safe Software itself, spatial extract, transform and load (spatial ETL) is the process whereby spatial data flows from source to target systems. It enables you to:
Do you have to have a MultiLineString instance?
All instances comprising the MultiLineString instance must be valid LineString instances. No two LineString instances comprising the MultiLineString instance may overlap over an interval. The LineString instances can only intersect or touch themselves or other LineString instances at a finite number of points.
How many lines can a MultiLineString intersect at?
The LineString instances can only intersect or touch themselves or other LineString instances at a finite number of points. The following example shows three valid MultiLineString instances and one MultiLineString instance that is not valid.
Which is the best description of spatial ETL?
Spatial ETL. Spatial ETL, also known as Geospatial Transformation and Load (GTL), provides the data processing functionality of traditional Extract, Transform, Load (ETL) software, but with a primary focus on the ability to manage spatial data (which may also be called GIS, geographic, or map data).
How are ETL tools used in the real world?
To manage this variety and support the work with a standardized data set most companies use so-called ETL tools to Extract, Transform and Load data. In this article I would like to present you two of them: FME from Safe Software and Talend with Spatial Extension.
Which is the open source tool for spatial data?
As I searched the web I found those two candidates: FME and the open source tool talend. Both are somehow different but I wanted to solve two problems: safe an excel file in three different spatial formats (shapefile, KML and geoJSON) load data from a google spreadsheet, transform it into a geoJSON and put it onto a server using ftp