F3DB Workshop Erlangen

Members of the OpenStreetMap community with interest in 3D and indoor mapping development met for the first time at the F3DB Workshop This meeting adressed open/not well arranged aspects of 3D and indoor mapping in OSM.

• 20-21.September.2014
• 91058 Erlangen suburb: Tennenlohe (Germany/Bavaria), Elektrobit Automotive GmbH building, Am Wolfsmantel 46
  Chart with marked building...
• Proposed hashtag (twitter etc.) tbd.
• Local contacts: Marek Strassenburg-Kleciak

Eat and drink

Breakfast, lunch and drinks ( Water, Coke, Coffe, Juice ) are provided free of charge.

Summary

During the weekend we could talk about the most aspects.

• /Intro - short summary on introduced project F3DB
• /Agenda

• Saturday
  • 10.00-10.30 Acquaintance round, snacks
  • 10.30-12.00 General idea presentation. How much of 3D do we need?
  • 12.00-13.00 Presentation of existing solutions, improvement of S3DB.
  • 13.00-13.30 Lunch
  • 13.30-16.00 Tagging discussion, alternatives
  • 16.00-16.15 Coffee break
  • 16.15-18.80 Tagging discussion,

• Sunday
  • 10.00-12.00 Tagging discussion
  • 12.00-12.30 Lunch
  • 13.30-14.00 Conclusions, next steps

Results

The F3DB wikipage should be changed in november 2014 bz Thomas Greichen and Marek. Be patient.

Minutes

Protocol F3DB Workshop Erlangen (tagging discussions only)

Day 1

Basic conventions:

• mapped rooms should represent "brutto areas" (consensus, with comment by Vladimir)
• same tags as outside should be used for facilities (consensus)

Indoor elements:

• mapping the indoor areas is the first step; adding walls for "3D" representation of floors is not required (but recommended)
• default width of walls (e.g. 10 cm inner wall, 25 cm outer wall) can be overwritten
• no consensus whether a separate element type for "room" with walls by default should exist
• "corridor" elements are problematic because of multi-use spaces

Windows, doors, openings:

• should be mapped as nodes
• the concept of an "opening" distinct from windows and doors was discussed, perhaps to be tagged as door=opening, window=opening?
• door opening direction should be based on wall direction, as this solution is unambiguous. Editor styles should be configured to show wall directions.

Ceilings:

• rooms are automatically ceilings for the floor below (consensus)
• for some cases (e.g. concert hall) the ability to explicitly map ceilings might be useful in the future

Day 2

• there should be a seamless transition between 2.5D (~ simple indoor) to full 3D

Routing:

• no consensus whether artificial ways for routing should be manually added in addition to the indoor areas to avoid the more complex algorithms for area-based routing

Stairs and elevators:

• stairs should be mapped as a way with tags (e.g. step_count). Their nodes can be tagged with level/height tags.
• inconclusive discussions about elevators (e.g. whether there should be only one area or one per level) -> participants should continue to think about the problem

Roofs:

• Marek introduces a tagging scheme for roofs: each face of the roof is mapped as an area, and 3+ nodes of each area need to have a height tag
• the new roof tagging scheme could replace Aschillis "roof lines" and represent even vertical roof faces
• the JOSM validator should be modified to no longer issue a warning for nodes with the same lat/lon, but different height

Level numbering:

• the basic idea is to have numbers that are independent from the local level names
• the F3DB wiki page will be updated with results from a discussion with Thomas Graichen

Who

Name	Project	From	Arrival	Accomodation
Marek Strassenburg-Kleciak	F3DB	Germany Erlangen,Poland	by foot	own flat
Thomas Graichen	F3DB,University Chemnitz	Germany Sachsen	by wire :-)
Pawel Marynowski Yarl	Mockup indoor website[1]	Poland	team	TBC
Vladimir Elistratov vvoovv	Prokitektura[2]	Russia	Plane	Mareks house
Tomasz Kędziora Kendzi	Kendzi3d	Poland	team	TBC
Tobias Knerr Tordanik	OSM2World	Germany Passau	by train
Hongchao Fan	University Heidelberg, Team Prof. Zipf	Germany Heidelberg	by car
Roland Olbricht	OSM API 0.7	Germany Bonn	by car
nn	Opensciencemap, university Bremen	Germany Bremen	by train
Markus Bärlocher	OpenSeaMap	Germany	by car	own flat
Stefan Langguth	N-Solut GmbH	Germany	by train
Stefan Scholz	Elektrobit GmbH	Germany
NN	Mapper	Germany
Oleksandr Fesenko	Mapper	Ukraine	by car

Ressources