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IfcExplorer CityGML Export - Revision history
2026-05-04T20:47:07Z
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>Karl-Heinz Haefele at 12:52, 15 August 2007
2007-08-15T12:52:17Z
<p></p>
<p><b>New page</b></p><div>A complete IFC model can be exported into CityGML by using the IfcExplorer (FZK internal version). <br />
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'''Export Workflow'''<br />
<table border="0" ><br />
<tr valign="top"><br />
<td align="left" width="300"> <br />
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* select "File-->Export-->CityGML"<br />
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* select the Level of Detail and the building elements for the export<br />
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* enter the global offset and the elevation<br />
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* confirm or change the file name<br />
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* confirm input by pressing ok<br />
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</td><br />
<td align="left" width="400>[[image:CityGML-1.png]]<br />
</td><br />
</tr> <br />
</table><br />
'''Export Options'''<br />
<table border="0" ><br />
<tr valign="top"><br />
<td align="left" width="300"> <br />
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* Level of Detail<br />
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* selection of building elements<br />
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* selection of geometry type (e.g. solid geometry) <br />
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* global position and elevation<br />
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* Address (if only one building)<br />
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</td><br />
<td align="left" width="600>[[image:CityGML-2.png]][[image:CityGML-3.png]][[image:CityGML-6.png]]<br />
</td><br />
</tr> <br />
</table><br />
'''Export Results'''<br />
<table border="0" ><br />
<tr valign="top"><br />
<td align="left" width="300"> <br />
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* IFC building elements are converted into corresponding CityGml entities<br />
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* IFC property sets are converted into CityGML generic attributes<br />
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* IFC external references are converted into CityGML external references<br />
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* the IFC building structure is converted into a set of CityObjectGroups<br />
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</td><br />
<td align="left" width="400>[[image:CityGML-4.png]]<br />
CityGML model imported into [http://www.3dgeo.de/citygml.aspx LandXplorer]<br />
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[[image:CityGML-5.png]]<br />
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CityGML model imported into [http://www.ikg.uni-bonn.de/aristoteles Aristoteles]<br />
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[[image:CityGML-7.png]]<br />
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CityGML model opened in the IFCExplorer<br />
</td><br />
</tr> <br />
</table><br />
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'''Examples of converted models can be found [http://www.iai.fzk.de/www-extern/index.php?id=1040&L=1 here]'''</div>
>Karl-Heinz Haefele