fgdata/Aircraft/Instruments-3d/primus-1000/AP-control.xml

<?xml version="1.0"?>
<!--
Author : Syd Adams
Primus 1000 Autopilot Controller
-->
<PropertyList>
<path>AP-control.ac</path>

    <animation>
        <type>select</type>
        <object-name>AP-on</object-name>
        <condition>
            <not>
                <property>autopilot/locks/passive-mode</property>
            </not>
        </condition>
    </animation>

    <animation>
        <type>select</type>
        <object-name>YD-on</object-name>
        <condition>
            <property>controls/flight/yaw-damper</property>
        </condition>
    </animation>

</PropertyList>