<?xml version="1.0" encoding="UTF-8"?>
<Mission xmlns="Tethys"
       xmlns:Control="Tethys/Control"
       xmlns:BehaviorScripts="Tethys/BehaviorScripts" 
       xmlns:Guidance="Tethys/Guidance" 
       xmlns:Units="Tethys/Units"
       xmlns:Universal="Tethys/Universal"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="Tethys http://okeanids.mbari.org/tethys/Xml/Tethys.xsd
                           Tethys/Control http://okeanids.mbari.org/tethys/Xml/Control.xsd
                           Tethys/BehaviorScripts ../BehaviorScripts/BehaviorScripts.xsd
                           Tethys/Guidance http://okeanids.mbari.org/tethys/Xml/Guidance.xsd
                           Tethys/Units http://okeanids.mbari.org/tethys/Xml/Units.xsd
                           Tethys/Universal http://okeanids.mbari.org/tethys/Xml/Universal.xsd"
       Id="FiniteDifferenceDemo">

    <DefineOutput Name="DepthFiniteDiff"><Units:meter/><Value>NaN</Value></DefineOutput>

    <DefineOutput Name="DepthFiniteDiff2"><Units:meter/><Value>NaN</Value></DefineOutput>

    <DefineOutput Name="MyDepthRate"><Units:meter/><Value>NaN</Value></DefineOutput>

    <DefineOutput Name="MyDepthAccel"><Units:meter/><Value>NaN</Value></DefineOutput>

<!-- some high priority behaviors -->

    <Guidance:AltitudeEnvelope>
        <Parallel/>
        <Setting><Guidance:AltitudeEnvelope.minAltitude/><Units:meter/><Value>20</Value></Setting>
    </Guidance:AltitudeEnvelope>

    <Guidance:OffshoreEnvelope>
        <Parallel/>
        <Setting><Guidance:OffshoreEnvelope.minOffshore/><Units:kilometer/><Value>1</Value></Setting>
        <Setting><Guidance:OffshoreEnvelope.maxOffshore/><Units:kilometer/><Value>50</Value></Setting>
    </Guidance:OffshoreEnvelope>

    <Guidance:DepthEnvelope>
        <Parallel/>
        <Setting><Guidance:DepthEnvelope.minDepth/><Units:meter/><Value>5</Value></Setting>
        <Setting><Guidance:DepthEnvelope.maxDepth/><Units:meter/><Value>300</Value></Setting>
    </Guidance:DepthEnvelope>

    <Insert Id="InsertFiniteDifference" Filename="BehaviorScripts/FiniteDifference.xml"/>

<!-- Initial GPS (and Iridium) Update -->

    <Aggregate Id="SurfaceOps">

        <Sequence/>

        <Guidance:GoToSurface>
            <Progression/>
        </Guidance:GoToSurface>

        <ReadDatum>
            <Universal:latitude_fix/>
        </ReadDatum>

    </Aggregate>

    <Aggregate Id="FiniteDifferenceAggregate">

        <Sequence/>

        <Guidance:SetSpeed>
            <Parallel/>
            <Setting><Guidance:SetSpeed.speed/><Units:meter_per_second/><Value>1</Value></Setting>
        </Guidance:SetSpeed>

        <Guidance:YoYo>
            <Parallel/>
        </Guidance:YoYo>

        <BehaviorScripts:FiniteDifference>
            <Parallel/>
            <Setting><BehaviorScripts:FiniteDifference.input/><Universal:depth/></Setting>
            <OutputArg Name="DepthFiniteDiff"><BehaviorScripts:FiniteDifference.output/></OutputArg>
        </BehaviorScripts:FiniteDifference>

        <Assign><Parallel/><Arg Name="MyDepthRate"/><Arg Name="DepthFiniteDiff"/><Div><Elapsed><Arg Name="MyDepthRate"></Arg></Elapsed></Div></Assign>

        <BehaviorScripts:FiniteDifference>
            <Parallel/>
            <Setting><BehaviorScripts:FiniteDifference.input/><Universal:depth/></Setting>
            <Setting><BehaviorScripts:FiniteDifference.order/><Units:count/><Value>2</Value></Setting>
            <OutputArg Name="DepthFiniteDiff2"><BehaviorScripts:FiniteDifference.output/></OutputArg>
        </BehaviorScripts:FiniteDifference>

        <Assign><Parallel/><Arg Name="MyDepthAccel"/><Arg Name="DepthFiniteDiff2"/><Div><Elapsed><Arg Name="MyDepthAccel"></Arg></Elapsed></Div></Assign>

        <Guidance:Execute>
            <Sequence/>
            <Setting><Guidance:Execute.command/><String>report modification FiniteDifferenceDemo.MyDepthRate;report modification FiniteDifferenceDemo.MyDepthAccel</String></Setting>
        </Guidance:Execute>

        <Guidance:Waypoint>
            <Sequence/>
            <Setting><Guidance:Waypoint.eastingsDelta/><Units:meter/><Value>1000</Value></Setting>
        </Guidance:Waypoint>

    </Aggregate>

</Mission>
