EN/CityGML-Tutorial/chapter-1:-Intro-CityGML.md

@@ -23,7 +23,7 @@ The following example shows a CityModel (CityGML 2.0) that makes use of several
 
 The following UML diagram defines the CityGML top level class hierarchy (CityGML 2.0 standard document, fig. 23, p51).
 
-![image](uploads/c0637b17c8b839570b05ca5f4f235a1c/image.png)
+![CityGML_Core_UML.drawio](uploads/ecc982efbb15e857216fcb3e3b0b2ed5/CityGML_Core_UML.drawio.png)
 
 A _City Model_ is a collection of _cityObjectMembers_. Each CityGML Module defines specific _CityObjects_ such as _Building_ objects, _Vegetation_ objects etc. Every _CityObject_ has a fixed set of specific attributes as specified in the UML model, and an _Appearance_ do define its visual properties. _GenericAttributes_ can be used to define additional attributes that are not explicitly specified in the UML model itself.