Seine connector

A seine connector of some kind.

Collaboration diagram for Seine connector:

Author

Karl-Johan Reite

Date

06.03.2009 KJR: Initial version.

A two-source position/velocity switch for a warp end. While Connected is above 0.5 the vessel holds the warp end, and Pos and Vel forward source 2 (Pos2, Vel2, the vessel); otherwise they forward source 1 (Pos1, Vel1, the buoy-held end). The buoy mesh is rendered only while the flag is low.

Full example file

The example is a copy of the regression input tests/in/SeineOperation/SeineOperation_in.xml, so the two cannot drift apart silently. Seine/Cable is wired to these objects in SeineCable.xml (FISH-0017, resolved).

<Contents>
   <OBJECTS>
      <Lib
         LibName                   = "fishery"
         SimObject                 = "Seine/Vessel"
         Name                      = "V"
         Length                    = "70"
         Breadth                   = "14"
         Draught                   = "7"
         NumWarps                  = "2"
         ApSpeed                   = "0.1"
         InitialSpeed              = "2"
         InitialHeading            = "0"
         AttractorNameNet          = "NetBin"
         AttractorNameWarp         = "WarpAttr"
      />
      <Lib
         LibName                   = "fishery"
         SimObject                 = "Seine/Operation"
         Name                      = "Op"
         WarpLength                = "100"
         MinWarpLength             = "60"
         WinchHaulSpeed            = "0.5"
         SetSpeed                  = "4.0"
         InitialSpeed              = "4.0"
         TowSpeed                  = "2.0"
         HaulSpeed                 = "0.5"
         FinishedSpeed             = "0.5"
         SpreadAngle               = "60"
         InitialHeading            = "0"
         TowHeading                = "0"
         AddedTrackLength          = "50"
         TensionFilterConstant     = "0.001"
         AttractorNameNet          = "NetBin"
         AttractorNameWarps        = "WarpAttr"
      />
      <Lib
         LibName                   = "fishery"
         SimObject                 = "Seine/Buoy"
         Name                      = "B"
      />
   </OBJECTS>
 
   <INTERCONNECTIONS>
      <Connection
         B.Pos1             = "10, 0, 0"
         B.Vel1             = "1, 0, 0"
         B.Pos2             = "-10, 0, 0"
         B.Vel2             = "-1, 0, 0"
         B.Connected        = "Op.WarpConnectedVessel"
 
         Op.NetPWingPos     = "-50, -25, -10"
         Op.NetSWingPos     = "-50, 25, -10"
         Op.NetVel          = "1, 0, 0"
         Op.PBridlePos      = "-30, -15, -10"
         Op.SBridlePos      = "-30, 15, -10"
         Op.PBridleTension  = "20000"
         Op.SBridleTension  = "20000"
         Op.VesselPos       = "V.Pos"
 
         V.Heading          = "Op.VesselHeading"
         V.Vel              = "Op.VesselSpeed"
      />
   </INTERCONNECTIONS>
 
   <INITIALIZATION>
      <InitialCondition
         V.Pos     = "0,0"
         V.Heading = "0"
      />
   </INITIALIZATION>
 
   <SIMULATION>
      <Timing TStart="0" TEnd="260"/>
      <Integrator Method="RK45_i" NumCores="1">
        <StepControl StepMax="0.05" StepMin="1e-8" AbsTol="1e-3" RelTol="1e-3"/>
      </Integrator>
   </SIMULATION>
 
   <OBSERVERS>
      <!-- The first output time is 1, where the baseline starts. A t=0 sample would be
           reproducible: Op.BuoyPos is zero until the first step in Phase_NotSet latches
           VesselPos (FISH-0024, FISH-0104). -->
      <FileOutput
         TOutput = "1, 5, 9.9, 10.1, 20, 30.8, 30.9, 40, 51.6, 51.8, 60, 72.4, 72.6, 100, 130, 155:5:170, 172.4, 172.6, 175:5:200, 210:10:250, 252.4, 252.6, 255, 260"
         Select  = "objects:all"/>
   </OBSERVERS>
</Contents>

This SimObject is referred to as Seine/Buoy