up_axis 

The up_axis element contains descriptive information about coordinate system of the geometric 
data. All coordinates are right-handed by definition. This element specifies which axis is 
considered up. The default is the Y-axis. The up_axis element may appear zero or one time.

Element Information

Model

Source 

<xs:element name="up_axis" type="up_axis_enum" default="Y_UP" minOccurs="0">
  <xs:annotation>
    <xs:documentation>The up_axis element contains descriptive information about coordinate system of the geometric data. All coordinates are right-handed by definition. This element specifies which axis is considered up. The default is the Y-axis. The up_axis element may appear zero or one time.</xs:documentation>
  </xs:annotation>
</xs:element>

Sample