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fgdata/Environment/interpolator.xml

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<?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>10</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>