jukka.ronkko@vtt.fi oct 30, 2006 luonnos navigation techniques for construction industry product...
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Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Navigation techniques for construction industry
product models
Jukka Rönkkö, HUT/VTTjukka.ronkko@vtt.fi
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Contents
• The concept of interactive 3D visualisation• Construction application areas• Building end user perspective• Research question• Method• Interaction technique: navigation• Example: existing application analysis• Current status of my work
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Interactive 3D visualization
• Consist of computer generated 3D graphical presentation and interaction methods for moving around in a virtual environment and manipulating it.
• Construction perspective: give the user a better understanding of a building to be built, to select among design choices, to represent simulation results in a comprehensible way´.
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Product model visualisation
• Visualising construction industry product model data can involve:• various domains: architectural, structural
engineering etc.• Simulating different properties: thermal,
lighting, acoustical and visualizing the results
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Current situation in interactive 3D in construction
• Nice looking visuals for marketing and lighting simulation.
• Other characteristics of a building is visualised for other technical persons: like thermal comfort data.
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Building quality from the end-user perspective?
• Quality of living is a strengthening trend.
• How about visualising the quality of a building solution beforehand to the end user of the building?
• Factors of interest like: thermal comfort, ergonomics, lighting quality, space information
• We need illustrative enough means to present the relevant product model and/or simulation data to a non-technical person.
• Examples: thermal vis, spatial ergonomics
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Research question
• What visualisation methods could be used to enhance construction product understanding even for non-technical persons?
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Software prototype development
Interaction technique development
User testing
Game engines
IFC model handling
Literature review & existing software
exploration
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Interaction theory
• Human computer interaction in graphics applications can be thought to be composed of basic interaction tasks:
• Object manipulation (indicating an object, selecting, moving and orienting, releasing)
• Alphanumeric input• Navigation in a 3D world
• Usability viewpoint: these have to be tackled first!
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Navigation = locomotion & wayfinding
• Locomotion in 3D worlds:• how to move ones’ viewpoint• interaction: input device -> interaction
technique in software -> visual feedback of motion to the user
• different input and display methods: mouse, keyboard, joystick, data glove, spacemouse & different displays
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Navigation = locomotion & way finding
• Way finding• Mental process of knowing where things
are in a 3D world and knowing how to get there.
• In the real world we use cues to remember places: turn left after the green house.
• We also use maps.
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
An example from the construction world
• Zermatt, a software for viewing ArchiCAD eported architectural models.
• The building model and the viewing software form a single .exe file that can be easily distributed.
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Zermatt
• Navigation:• Movement is first person –type, i.e. looking through a persons’
eyes. • Keyboard for movement, collision constraints mimic real world
type movement in a building.• A map to aid comprehension of the building structure.
• Observations:• first person view, with constrained ”walking” gives some sense
of being inside of a building.• it is not easy to form an opinion of the building as a whole or of
a floor plan of a particular storey.• NOT MUCH USE OF DOMAIN SPECIFIC KNOWLEGDE
Oct 30, 2006 LUONNOS jukka.ronkko@vtt.fi
Current status: New navigation technique in development
• Combines ideas from games for first person/third person views.
• Takes advantage of IFC model structural information:
• multi-scale navigation by recognising where the user is located: building storey, space
• Software prototype implementation is under progress.
• Let’s see what happens next.
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