This page lists the various Geo components provided in SDI. This list is meant to grow as the project evolves. The Geo family is composed of 9 sub-families. All Geospatial components are also compatible with all Talend Open Studio Java components (database access, Internet, file manipulation, logging, processing, …).

Components of the File family are input and output components that can read from and write to files of different formats.

	Name	Description
Input
	sShapefileInput	reads a shapefile data store feature by feature
	sMapinfoInput	reads a mapinfo data store feature by feature
	sEdigeoInput	reads an Edigeo data store feature by feature
	sGeomTxtInput	reads one feature in Well-Known Text (WKT) Format
	sWfsInput	reads WFS data store
	sGpxInput	reads GPX data store
	sOSMNodesInput	reads nodes from an OSM file
	sOSMWaysInput	reads ways from an OSM file
	sOgrInput	Read feature with OGR (Shapefile, GeoJSON, PostGIS, etc.)
	sNetCDFInput	Read NetCDF data store
Output
	sShapefileOutput	write a shapefile data store feature by feature
	sMapinfoOutput	writes a mapinfo data store feature by feature
	sGeoRSSOutput	Output GeoRSS feed. Geometry format could be simple georss or gml point. Attributes will be output using attribute's name (ie. to set the title element of the item, set the name of that attribute as title).
Management
	sGeoServerPublisher	Publish a zipped Shapefile or a GeoTiff to a GeoServer node.

All output components will allow metadata creation using an ISO19139 XML template and setting the following properties:

• title
• abstract
• purpose
• topic category.

The ISO19139 template could be adapted to your context (setting default point of contact, organisation name, …).

SDI automatically produced :

• date of production of the dataset
• number of features
• feature type
• extent of the datasets.

Components of the Database family are input and output components that can read from and write to different geospatial-enabled databases.

Currently, only the PostGIS database is supported:

	Name	Description
	sPostgisInput	reads a postgis data store feature by feature
	sPostgisOutput	reads a postgis data store feature by feature
	tPostgresqlInput	reads a postgresql table with geometry capabilities and extracts fields based on sql query
	tPostgresqlOutput	insert or updates lines into postgresql/postgis table
	tOracleInput	reads an Oracle table with geometry capabilities and extracts fields based on sql query
	tOracleOutput	insert or updates lines into Oracle (spatial) table

Components of the Calculators family do some calculation on each feature of their input flows. sAreaCalculator, sCoordinateFetcher, sDecimalDegreesCalculator, and sLengthCalculator augments their input flows with new columns on their output flows. For example, sAreaCalculator adds the area column.

For each input feature, sBufferCalculator, sCentroidCalculator, and sEnvelopeCalculator output a feature whose geometry is, respectively, the buffer, centroid, and envelope of that input feature's geometry.

	Name	Description
	sAreaCalculator
	sCoordinateFetcher	Retrieves the value of x, y coordinate at the specified index into new attributes
	sDecimalDegreesCalculator	Calculates a decimal degree value from separate degrees, minutes and seconds (DMS) stored in separate attributes.
	sLengthCalculator	Perform length calculation
	sGeomsCounter	Retrieve the number of simple geometry
	sGetElevation	Use GeoNames webservice to get elevation from GTOPO30 or SRTM datasets.
	sGetGeomSRID	Get SRID for each geometry feature and add the identifier of the SRID in a new column.
	sPointsCounter	Retrieve the number of points of the geometry

Components of the Collectors family perform an aggregation operation based on a GROUP-BY column.

	Name	Description
	sBoundingBoxAccumulator	Creates bounding box for groups of features.
	sConvexHullAccumulator	Creates convex hulls for groups of features.
	sNeighborFinder	Find neighbor features

Components of the Geometric Operators family apply some geometric operator to their input features.

	Name	Description
	sDissolver	Dissolve area feature by removing common boundaries.
	sCascadedPolygon Union	Dissolve area feature by removing common boundaries.
	sClipperBox	Clip geometries from the input to the box. Resulting geometries are the intersection of all features with the box defined
	sProj	Reproject geometry

Components of this family perform various manipulations on their input features.

	Name	Description
	sBufferCalculator	Perform buffer calculation. Distance could be positive or negative.
	sCentroidCalculator	Perform centroid calculation
	sEnvelopeCalculator	Perform envelope calculation
	s2DPointReplacer	Replace the geometry with a two-dimensional point whose coordinates X, Y are taken from attributes in the original input.
	sBoundaryReplacer	Replace the geometry of a polygon by the boundary of the feature (ie. line). For line and point geometry, input geometries will be returned.
	sEnvelopeCalculator	Perform envelope calculation
	sConvexHullCalculator	Perform convex Hull polygon calculation
	sInsidePointExtractor	Generate a point which are guaranteed to be on the feature area.
	sSimpleGeomToMulti	Convert simple geometry (Point,Linestring,Polygon) to collection (Multipoint,Multilinesting,Multipolygon).
	sSimplify	Use Douglas Peucker Simplifier and Topology Preserving Simplifier algorithme to simplify geometry.
	sTransform	Compute affine transformation (Translation,rotation and scaling).
	sChangeLineDirection	Change line direction.

s2DPointReplacer creates a point object from x and y columns in its input flow.

Thanks to the GeoNames.org team.

	Name	Description
	sFindPlaceName	Use GeoNames webservice to find nearby place name / reverse geocoding
	sFindPostalCode	Use GeoNames webservice to find nearby postal codes / reverse geocoding

Metadata conversion is performed using XSLT transformations on metadata XML files. Each of these enables transforming a metadata file from one standard or profile to another.

	Name	Description
	sESRIArcCatalog_to_ISO19115	Transform ESRI Arc catalog XML files into ISO 19115 XML files
	sISO19115_to_ISO19139FR	Transform ISO19115 files into ISO19139/Profil FR
	sISO19139_to_ISO19139FR	Transform ISO19139 files into ISO19139/Profil FR
	sISO19139FR_to_ISO19139	Transform ISO19139/Profil FR files into ISO19139
	sCataloguePublisher	Publish metadata (XML or MEF file) into a catalogue (ie. GeoNetwork)
	sMEFCreator	Create a Metadata Exchange Format (MEF) file
	sMetadataCreator	Create metadata using an ISO19139 templates

Metadata publication allows SDI to publish metadata into an existing metadata catalogue (ie. GeoNetwork opensource).

Understand your spatial data. Tightly integrated with SDI Workbench, the UDig User friendly Desktop Internet GIS Viewer lets you quickly inspect your spatial data's geometry and attributes - before, after, and even during the transformation process. You can use it to examine features, identify attributes and values, and enhance the display using color, symbols and labelling.

	Name	Description
	sUdig	SDI viewer based on Udig (the open source user-friendly Desktop Internet GIS)

The following components are planned for the next release.