<?xml version="1.0" ?> <!-- This file is part of FlightGear, the free flight simulator http://www.flightgear.org/ Copyright (C) 2009 Torsten Dreyer, Torsten (at) t3r _dot_ de This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. --> <!-- Interpolate the values of /environment/interpolated/* over time and write the results to /environment/*, the environment of our aircraft All filters are enabled on /environment/config/enabled=true --> <PropertyList> <filter> <name>EnvironmentInterpolator:temperature-sea-level-degc</name> <enable> <condition> <property>/environment/config/enabled</property> </condition> </enable> <input>/environment/config/interpolated/temperature-sea-level-degc</input> <output>/environment/temperature-sea-level-degc</output> <type>noise-spike</type> <max-rate-of-change>0.1667</max-rate-of-change> </filter> <filter> <name>EnvironmentInterpolator:dewpoint-sea-level-degc</name> <enable> <condition> <property>/environment/config/enabled</property> </condition> </enable> <input>/environment/config/interpolated/dewpoint-sea-level-degc</input> <output>/environment/dewpoint-sea-level-degc</output> <type>noise-spike</type> <max-rate-of-change>0.1667</max-rate-of-change> </filter> <filter> <!-- transfer the interpolated QNH to the global environment limit the rate of change to approx 1hpa/sec --> <name>EnvironmentInterpolator:pressure-sea-level-inhg</name> <type>noise-spike</type> <max-rate-of-change>0.03</max-rate-of-change> <enable> <condition> <property>/environment/config/enabled</property> </condition> </enable> <input>/environment/config/interpolated/pressure-sea-level-inhg</input> <output>/environment/pressure-sea-level-inhg</output> </filter> <filter> <name>EnvironmentInterpolator:visibility-m</name> <enable> <condition> <property>/environment/config/enabled</property> </condition> </enable> <input>/environment/config/interpolated/visibility-m</input> <output>/environment/visibility-m</output> <type>exponential</type> <filter-time>2</filter-time> </filter> <!-- filter the wind vector by filtering the cartesian representation --> <filter> <name>EnvironmentInterpolator:wind-from-north</name> <enable> <condition> <property>/environment/config/enabled</property> </condition> </enable> <input>/environment/config/interpolated/wind-from-north-fps</input> <output>/environment/wind-from-north-fps</output> <type>exponential</type> <filter-time>5</filter-time> </filter> <filter> <name>EnvironmentInterpolator:wind-from-east</name> <enable> <condition> <property>/environment/config/enabled</property> </condition> </enable> <input>/environment/config/interpolated/wind-from-east-fps</input> <output>/environment/wind-from-east-fps</output> <type>exponential</type> <filter-time>5</filter-time> </filter> </PropertyList>