fgdata/Aircraft/c172p/Instruments/asi/asi.xml

<?xml version="1.0"?>

<PropertyList>

 <name>ASI</name>
 <path>asi.ac</path>

 <animation>
  <type>material</type>
  <object-name>Face</object-name>
  <object-name>Needle</object-name>
  <emission>
   <red>1.0</red>
   <green>0.2</green>
   <blue>0.0</blue>
   <factor-prop>sim/model//material/instruments/factor</factor-prop>
  </emission>
 </animation>

 <animation>
  <type>rotate</type>
  <object-name>Needle</object-name>
  <property>instrumentation/airspeed-indicator/indicated-speed-kt</property>
  <interpolation>
   <entry><ind>   0</ind><dep>    0</dep></entry>
   <entry><ind>  35</ind><dep>   36</dep></entry>
   <entry><ind>  40</ind><dep>   50</dep></entry>
   <entry><ind>  60</ind><dep>  100</dep></entry>
   <entry><ind>  80</ind><dep>  152</dep></entry>
   <entry><ind> 100</ind><dep>  206</dep></entry>
   <entry><ind> 120</ind><dep>  249</dep></entry>
   <entry><ind> 140</ind><dep>  291</dep></entry>
   <entry><ind> 160</ind><dep>  333</dep></entry>
   <entry><ind> 190</ind><dep>  340</dep></entry>
  </interpolation>
  <axis>
   <x>-1</x>
   <y>0</y>
   <z>0</z>
  </axis>
 </animation>

 <animation>
   <type>pick</type>
   <object-name>Face</object-name>
   <object-name>Needle</object-name>
   <hovered>
       <binding>
         <command>set-tooltip</command>
         <tooltip-id>airspeed</tooltip-id>
         <label>Airspeed: %3dkts</label>
         <property>instrumentation/airspeed-indicator/indicated-speed-kt</property>
      </binding>
   </hovered>
 </animation>

</PropertyList>