<?xml version="1.0"?> <!-- General settings for all Middle East materials --> <PropertyList> <!-- Define the Middle East as a box with given latitude/longitude --> <condition> <and> <equals> <property>sim/startup/season</property> <value>summer</value> </equals> <or> <and> <greater-than> <property>position/longitude-deg</property> <value>45.0</value> </greater-than> <less-than> <property>position/longitude-deg</property> <value>65.0</value> </less-than> <greater-than> <property>position/latitude-deg</property> <value>10.0</value> </greater-than> <less-than> <property>position/latitude-deg</property> <value>40.0</value> </less-than> </and> <and> <greater-than> <property>position/longitude-deg</property> <value>30.0</value> </greater-than> <less-than> <property>position/longitude-deg</property> <value>45.0</value> </less-than> <greater-than> <property>position/latitude-deg</property> <value>10.0</value> </greater-than> <less-than> <property>position/latitude-deg</property> <value>35.0</value> </less-than> </and> </or> </and> </condition> </PropertyList>