This presentation explores the use of FME to dynamically link objects over space and time through two real-world application examples.

1. CONNECT. TRANSFORM. AUTOMATE.
Analyse Sequence in Utility
Networks and GPS Tracks
Dr. Martin Huber
Principal Consultant Condesys Consulting GmbH

2. Who is Condesys Consulting?
 Build geographic databases, link them to
business and generate web services and web
applications
 From through to
 FME lover since 1997

3. What if your network data is
not yet a network?
 Routing, network analysis, linear referencing are
fine tools if your network data is according to
what the FME manual says:
Input Ports
Network
Lines defining the network in which to find a path or paths.
or
Output
Network
All connected lines are output through the Network port.
CONNECT. TRANSFORM. AUTOMATE.

4. Might look nice at first sight,
but…

5. The Sequence Pattern in FME,
simple but not obvious
 If you need a network, but disconnected items
are all you have, the Sequence Pattern might be
of help.
 The trick:
act FME
Sort
Start
Number (Counter) Number + 1
two streams
Rename Attributes
merge
Join via Counter and
Counter + 1
Ready to
Analise

6. Example 1: GPS Tracks
 50 police cars send their position every 60
seconds
 Some positions are wrong: how to determine if
the previous or the current position is wrong?
 Where is the car coming from and where is it
heading to?
 When will it arrive at the destination?

7. The Real-Time Infrastructure

8. FME Sequence Pattern for GPS
Tracks

9. One Example Track

10. Real-Time Determination of
Route on Road Network
12
13
GPS position with number
Candidate on road network
Known route
Possible route
12
14
13
UNIGIS University of Salzburg
Master Thesis Marco Saner (2013)

11. Route Predition
UNIGIS University of Salzburg
Master Thesis Marco Saner (2013)

12. Example 2: Electricity Network
 Data migration at the Utility of the City of Berne (Energie
Wasser Bern ewb)
 System A has
 topological cable network routed through
 fragemented geometric network (gaps) and
 linear referencing for branching off of cables
 System B needs
 geometrically connected network
 cable network linked to geometrical network in proper
sequence with all route sections in order

13. Dramatic Situation
 The two companies providing system A and B are
not able to migrate the electricity network
without loosing connectivity
 Stop of the whole project!!!
OR

14. Strategy and Main Tasks
 Too many problems to handle in one step,
therefore Divide & Conquer
 Task 1: split the route sections at each
branching off, do not duplicate route section
geometries
 Task 2: fill the gaps in the geometrical route
sections network
 In both tasks: produce the link list to link cables
to all new route sections they pass through

15. Split Sections and
Fill Gaps 1 & 2

16. Task 1: Split Lines, Keep
Sequence of Sections for Cable

17. Split

18. Renumbering

19. Pattern: Reset Numbers to
Start with 1 per Cable
act FME
Sort
Start
Number (Counter) Statistics Min Calculate Count-Min
Ready to
Analise
@Value(CounterValue)+1-@Value(minCounterValuePerCable)

20. Task 2: Fill Gaps, again Keep
Sequence of Sections for Cable

21. Pattern: Find Real Neighbours

22. Results

23. Summary
 With FME you can go further than well
established solution providers
 Divide and conquer strategy
 Sometimes transformer combinations repeat,
make it a pattern and make it a custom
transformer
 Patterns for sequential analysis and proper
neighbourhood topology

24. Thank You!
 Questions?
 For more information:
 Dr. Martin Huber,
martin.huber@condesys.com
 Condesys Consulting GmbH
Stoecklimattweg 18
CH-3113 Rubigen
CONNECT. TRANSFORM. AUTOMATE.