Open Source for
Handling IndoorGML
PUSAN NATIONAL UNIVERSITY
DONGUK SEO
[email protected]
Outline
• IndoorGML
− Background
− Basic concepts of IndoorGML
• Open Source S/W for IndoorGML
− Editing Tools
− Data Format Handler
− Data Server
• Conclusion
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Background
• CityGML: LOD4(Interior space)
− Room, Door, Wall, Opening, etc
• How to represent the path from R1 to R3?
• Demand a lot of computation for derive topology from geometric data.
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Overview of IndoorGML
• IndoorGML
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An OGC Standard for indoor spatial information
Application schema of OGC GML 3.2.1
Cellular space model
Geometric, topological and semantic attributes
Multi layered space model
IndoorGML
Extension Module
– Navigation Module
Core Module
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GML 3.2.1
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Geometric Representation
• Three options to represent geometry of each cell
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IndoorGML and other Standards
IndoorGML
Services for
handicapped
persons
Indoor LBS
IFC
KML
Application
Emergency
Control
CityGML
2D Indoor
Floor Plan
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Indoor mCommerce
Indoor Robot
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Network Representation
• Poincare Duality
− Conversion from k D object  3 – K D objects
Primal Space
Dual Space
3D
0D
Node
Space
2D
Space
Boundary
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1D
Edge
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Network Representation
• Example : Wall and Door as Space Boundary(Thin Wall Model)
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Network Representation
• Example : Wall and Door as Space(Thick Wall Model)
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Multi Layered Space Model
• Indoor space can be interpreted into different purposes
Layer “Walkable”
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Layer “Wheelchair”
Layer “WiFi”
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Multi Layered Graph
Geometry in IR³
Topology
Room 1
Room 2
Layer “Walkable”
Outer
Room 3
Layer “Wheelchair”
Room 1
Outer
Room 3a
Layer “WiFi”
Room 3b
WiFi B
WiFi A WiFi AB
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Room 2
Outer
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Open Source S/W for IndoorGML
Editing Tools
Editing Tools
- indoor cell editing
- indoor network editing
JOSM (OSM)
Data Format Handler
GDAL/OGR
Data Format Handler:
- handling IndoorGML data
- CityGML, IFC data, OSM
Spatial DBMS
Spatial DBMS
- network data
PostGIS
Data Server:
- spatial query
- cellular spatial analysis
Server (Service)
GeoServer
Viewers
OpenLayers
(2D)
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Cesium
(3D)
Viewers:
- navigation route, collision detection
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Editing Tools
• i-locate project
− An EU project for Indoor Asset Management
− First Real Application of IndoorGML
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Editing Tools
• i-locate project
− The JOSM plugin for IndoorGML
◦ Support importing/exporting IndoorGML Data
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Data Format Handler
• GDAL/OGR extension
− Adding IndoorGML module to GDAL/OGR
• Data Format Converting Tool
− Provide a converting function between IndoorGML and
other data formats(CityGML, other formats)
Java
IndoorGML
Java Geometry
(ISO 19107)
other data
formats
Java CityGML
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Data Format Handler
• Java Package (for IndoorGML, CityGML)
− For Java instantiation of XML Data
− Extracted from XML Schema by JAXB Binding Compiler(xjc)
• JAXB(Java Architecture for XML Binding)
− Java API that represent the Java Class to XML
− JAXB provides two main features
◦ Marshal(Java objects  XML)
◦ Unmarshal(XML  Java objects)
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Data Server
• Architecture of ISA(Indoor Spatial Awareness) Server
ISA Server
Extensions
GeoServer
3D Geometry
Complex Feature
GeoTools Library
ISA Engine
Plugins
xsd-citygml
Interface
Implementation
xsd-indoorgml
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Conclusion
• In order to utilize IndoorGML, open source tools that
provide a basis of developing application are required.
• The types of tools
− Editing tool, Data format handler, Spatial DBMS, Data server, Viewer
• Some of them are in the middle of being developed.
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Thank you for your attention
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