Abstact
版本3.1.1，OSG，ISO TC211,SWG
http://www.citygml.org http://www.citygmlwiki.org
相关标准或组织：opengeospatial,sig3d,eurosdr
相关公司： autodesk，bentbently，technical University Berlin...
Introduction
thematic queries，analysis tasks，spatial data mining
CityGML is implemented as an application shema of GML3.0
geometrical，topological，sematical，appearance properities
built structues，elevation，vegetation，water bodies，city furniture
OpenGIS。
支持oracle 10g R2,11g R1/R2
Java的支持版本citygml4j
支持FME，esri 的arcgis
支持bentleyMap
Aristoleles Viewer、LandXplorer、FZKViewer
更多软件从citygml.org或者citygmlwiki.org进行获得
Scopes
LOD0 region，landspace
LOD1 city，region
LOD2 city districts，projects
LOD3 architecture model outs,land marks
LOD4 architecture model interior,land marks
Modularisation
core module and thematic extension modules
thematic extension modules:Appearence,Bridge,Buildings,CityFurniture,CityObjectGroup,Generics,LandUse,Relief,Transportation,Tunnel,Vegetation,WaterBody.
Multi-Scale Modelling
