The document discusses the importance of GML (Geography Markup Language) within spatial data exchange and its role as an OGC and ISO standard. It highlights the experience and expertise of Sören Dupke, an FME certified professional and trainer at Con Terra GmbH, in using GML schemas for various projects. The document also includes examples of application schemas and demonstrates handling geometries in GML.

1. CONNECT. TRANSFORM. AUTOMATE.
Writing Schema based GML with FME
Sören Dupke
Software Engineer

2. Introduction
! Employed at con terra GmbH
since 2010
! Spatial ETL Professional
Services
! FME Certified Trainer since
2011
! FME Certified Professional
since 2013
CONNECT. TRANSFORM. AUTOMATE.

3. A few Words about GML
! Why is it important for us
! What´s the difficulty
GIS <GML>

4. GML
! OGC and ISO Standard
! XML Schema for the exchange of spatial data
! Rich set of primitives:
! Features
! Geometry
! Coordinate reference system
! Time
! UoM

5. GML Application Schema
! Describes the domain of interest
> e.g. : Transport, Hydrography…
! Uses GML primitives
> Attributes, Geometry, …
! Examples:
> AIXM, INSPIRE, NAS, CityGML

6. GML before 2014
Reading GML Writing GML

7. Reading GML in FME
! GML Reader
! Predefined application
schemas
! Format specific

8. Writing Schema based GML
! Import Feature Types from GML Schema
Demo Cadastral
Parcels

9. Geometry Handling
! Geometry name and GML element have to match
! Multiple geometries
supported
Demo Cadastral
Parcels

10. Multiplicities
! Lists
Demo Cadastral
Parcels

11. Embedded FeatureTypes
! gml_parent_id references back to parent

12. Experience from Projects
! INSPIRE@BfN
! First project use of the new writer
! INSPIRE Solution Pack 2.0
! Uses GML writer
! Fast and flexible solution for creating INSPIRE GML

13. Thank You!
! Questions?
! For more information:
! Sören Dupke, s.dupke@conterra.de
! con terra GmbH
CONNECT. TRANSFORM. AUTOMATE.