<?xml version="1.0"?> <!-- General settings for all Alaska materials --> <PropertyList> <!-- Define Alaska as a box with given latitude/longitude --> <condition> <and> <greater-than> <property>position/longitude-deg</property> <value>-180.0</value> </greater-than> <less-than> <property>position/longitude-deg</property> <value>-60.0</value> </less-than> <greater-than> <property>position/latitude-deg</property> <value>55.0</value> </greater-than> <less-than> <property>position/latitude-deg</property> <value>90.0</value> </less-than> </and> </condition> </PropertyList>