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812 lines (723 loc) · 30.2 KB
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import Data.Sequence (Seq, fromList, index, update, mapWithIndex, fromList, elemIndexL)
import qualified Data.Sequence (length)
import Data.List
import Data.Maybe
import Data.Sequence ()
import Data.Foldable (toList)
-- ========================================
-- Debugging
-- ========================================
import Debug.Trace
import ShowConcat ((@@), (@@@))
-- Debugging on:
tsi :: Show a => a -> a
tsi = traceShowId
trc = trace
-- Debugging off:
--tsi = id
--trc m = id
-- ========================================
-- Data types
-- ========================================
data LvValue = LvEXT Double
| LvDBL Double
| LvSGL Float
| LvFXP Double
| LvI64 Int
| LvI32 Int
| LvI16 Int
| LvI8 Int
| LvU64 Int
| LvU32 Int
| LvU16 Int
| LvU8 Int
| LvBoolean Bool
| LvString String
| LvCluster [LvValue]
| LvArray Int LvValue
-- | LvCXT Complex
-- | LvCDB Complex
-- | LvCSG Complex
deriving (Show, Eq)
data LvControl = LvControl LvValue
| LvAutoControl
| LvTunControl
| LvTunSRControl
| LvSRControl LvValue
deriving Show
data LvTunnelMode = LvAutoIndexing
| LvLastValue
-- TODO other kinds
deriving Show
data LvIndicator = LvIndicator LvValue
| LvTunIndicator LvTunnelMode
| LvSRIndicator Int
deriving Show
data LvPanel = LvPanel
[(String, LvControl)]
[(String, LvIndicator)]
deriving Show
data LvNodeType = LvN
| LvC
| LvI
deriving (Show, Eq)
data LvPortAddr = LvPortAddr LvNodeType Int Int
deriving Eq
data LvNodeAddr = LvNodeAddr LvNodeType Int
deriving Eq
data LvWire = LvWire {
wSrc :: LvPortAddr,
wDst :: LvPortAddr
}
deriving Show
data LvStringWire = LvStringWire (String, Int) (String, Int)
deriving Show
data LvStrucType = LvWhile
| LvFor
-- TODO LvSequence
deriving Show
data LvNode = LvSubVI LvVI
| LvFunction String
| LvConstant LvValue
| LvStructure LvStrucType LvVI
| LvFeedbackNode LvValue
deriving Show
data LvDiagram = LvDiagram {
dNodes :: [(String, LvNode)],
dWires :: [LvWire]
}
deriving Show
data LvVI = LvVI LvPanel LvDiagram
deriving Show
data LvVisibleState = LvVisibleState {
vsTs :: Int
}
data LvCont = LvKFunction {
kFn :: LvVisibleState -> [LvValue] -> LvReturn,
kArgs :: [LvValue]
}
| LvKState LvState
data LvReturn = LvReturn [LvValue]
| LvContinue LvCont
data LvNodeState = LvNodeState {
nsName :: String,
nsCont :: Maybe LvCont,
nsInlets :: Seq (Maybe LvValue)
}
deriving Show
data LvState = LvState {
sTs :: Int,
sSched :: [LvNodeAddr],
sNodeStates :: Seq LvNodeState,
sControlValues :: Seq (Maybe LvValue),
sIndicatorValues :: Seq (Maybe LvValue)
}
deriving Show
data FromTo = From | To
deriving Eq
-- ========================================
-- Utilities
-- ========================================
instance Show LvPortAddr where
show (LvPortAddr typ nidx pidx) = "{" @@ typ @@@ nidx @@ ", " @@ pidx @@ "}"
instance Show LvNodeAddr where
show (LvNodeAddr typ nidx) = "{" @@ typ @@@ nidx @@ "}"
instance Show LvCont where
show (LvKFunction fn args) = "KFunction(" @@ args @@ ")"
show (LvKState state) = "KState[" @@ state @@ "]"
indices l = [0 .. ((length l) - 1)]
-- ========================================
-- Program construction
-- ========================================
zwire a b = LvStringWire (a, 0) (b, 0)
nwire a i b j = LvStringWire (a, i) (b, j)
makeVI :: [(String, LvControl)] -> [(String, LvIndicator)] -> [(String, LvNode)] -> [LvStringWire] -> LvVI
makeVI controls indicators nodes stringWires =
LvVI (LvPanel controls indicators) (LvDiagram nodes wires)
where
findNode :: FromTo -> String -> Int -> (LvNodeType, Int, Int)
findNode side name port =
let
pickSide :: a -> a -> a
pickSide a b = if side == From then a else b
findPort ctrls indics = elemIndex name $ pickSide (map fst ctrls) (map fst indics)
checkNode :: Int -> (String, LvNode) -> Maybe (Int, Int)
checkNode nodeIdx (_, LvStructure _ (LvVI (LvPanel nodeCtrls nodeIndics) _)) =
case findPort nodeIndics nodeCtrls of
Just i -> Just (nodeIdx, i)
Nothing -> Nothing
checkNode nodeIdx (nodeName, node) =
if name == nodeName
then Just (nodeIdx, port)
else Nothing
in
case findPort controls indicators of
Just i -> (pickSide LvC LvI, i, port)
Nothing -> case find isJust $ toList $ mapWithIndex checkNode (fromList nodes) of
Just (Just (node, nodePort)) -> (LvN, node, nodePort)
Nothing -> error ("No such wire " ++ name ++ " (attempted to connect port " ++ show port ++ ")")
convert :: LvStringWire -> LvWire
convert (LvStringWire (from, fromPort) (to, toPort)) =
let
(fromType, fromNode, fromPort') = findNode From from fromPort
(toType, toNode, toPort') = findNode To to toPort
in
LvWire (LvPortAddr fromType fromNode fromPort') (LvPortAddr toType toNode toPort')
wires :: [LvWire]
wires = map convert stringWires
-- ========================================
-- Functions
-- ========================================
numberOfInputs :: String -> Int
numberOfInputs "*" = 2
numberOfInputs "WaitUntilNextMs" = 1
numberOfInputs "RandomNumber" = 0
numberOfInputs "Bundle" = 2
numberOfInputs "+" = 2
numberOfInputs "InsertIntoArray" = 2
numberOfInputs "ArrayMax&Min" = 1
numberOfInputs "<" = 2
numberOfInputs fn = trc ("Failing numberOfInputs " ++ fn) $ undefined
applyFunction :: LvVisibleState -> String -> [LvValue] -> LvReturn
applyFunction vst "*" [LvDBL a, LvDBL b] = LvReturn [LvDBL (a * b)]
applyFunction vst "*" [LvI32 a, LvDBL b] = LvReturn [LvDBL ((fromIntegral a) * b)]
applyFunction vst "*" [LvDBL a, LvI32 b] = LvReturn [LvDBL (a * (fromIntegral b))]
applyFunction vst "*" [LvI32 a, LvI32 b] = LvReturn [LvI32 (a * b)]
applyFunction vst "+" [LvDBL a, LvDBL b] = LvReturn [LvDBL (a + b)]
applyFunction vst "+" [LvI32 a, LvDBL b] = LvReturn [LvDBL ((fromIntegral a) + b)]
applyFunction vst "+" [LvDBL a, LvI32 b] = LvReturn [LvDBL (a + (fromIntegral b))]
applyFunction vst "+" [LvI32 a, LvI32 b] = LvReturn [LvI32 (a + b)]
applyFunction vst "<" [LvDBL a, LvDBL b] = LvReturn [LvBoolean (a < b)]
applyFunction vst "<" [LvI32 a, LvDBL b] = LvReturn [LvBoolean ((fromIntegral a) < b)]
applyFunction vst "<" [LvDBL a, LvI32 b] = LvReturn [LvBoolean (a < (fromIntegral b))]
applyFunction vst "<" [LvI32 a, LvI32 b] = LvReturn [LvBoolean (a < b)]
applyFunction vst "RandomNumber" [] = LvReturn [LvDBL 0.5] -- not very random :)
applyFunction vst@(LvVisibleState ts) "WaitUntilNextMs" [LvI32 ms] =
let
nextMs = ts - (ts `mod` ms) + ms
in
LvContinue $ LvKFunction waitUntil [LvI32 nextMs]
applyFunction vst "WaitUntilNextMs" [LvDBL msd] = applyFunction vst "WaitUntilNextMs" [LvI32 (floor msd)]
applyFunction vst fn args = trc ("Failing applyFunction " ++ fn @@@ args) $ undefined
waitUntil vst@(LvVisibleState ts) arg@[LvI32 nextMs] =
if ts >= nextMs
then LvReturn []
else LvContinue $ LvKFunction waitUntil arg
-- ========================================
-- Dataflow
-- ========================================
-- Produce a sequence of n empty inlets
emptyInlets :: Int -> Seq (Maybe LvValue)
emptyInlets n = fromList (replicate n Nothing)
numberOfControls :: LvVI -> Int
numberOfControls (LvVI (LvPanel controls indicators) diagram) = length controls
numberOfIndicators :: LvVI -> Int
numberOfIndicators (LvVI (LvPanel controls indicators) diagram) = length indicators
-- FIXME schedule while loop
initialSchedule (LvVI (LvPanel controls indicators) (LvDiagram nodes wires)) =
(map (LvNodeAddr LvC) (indices controls))
++ (map (LvNodeAddr LvN) $ filter (\i -> isBootNode (nodes !! i)) (indices nodes))
where
isBootNode (_, (LvConstant _)) = True
isBootNode (_, (LvFeedbackNode _)) = True
isBootNode (_, (LvFunction name)) | numberOfInputs name == 0 = True
isBootNode _ = False
initialState :: Int -> LvVI -> LvState
initialState ts vi@(LvVI (LvPanel controls indicators) (LvDiagram nodes wires)) =
LvState (ts + 1) (initialSchedule vi) nodeStates controlValues indicatorValues
where
nodeStates = fromList $ map expandNode nodes
where
expandNode :: (String, LvNode) -> LvNodeState
expandNode (name, node) =
case node of
LvSubVI vi -> LvNodeState name Nothing (emptyInlets (numberOfControls vi))
LvFunction name -> LvNodeState name Nothing (emptyInlets (numberOfInputs name))
LvConstant v -> LvNodeState name Nothing (emptyInlets 0)
LvStructure _ vi -> LvNodeState name Nothing (emptyInlets (numberOfControls vi))
LvFeedbackNode v -> LvNodeState name Nothing (emptyInlets 1)
controlValues = fromList $ map makeControlValue controls
where
makeControlValue (_, LvControl v) = Just v
makeControlValue (_, LvSRControl v) = Just v
makeControlValue _ = Nothing
indicatorValues = fromList $ map makeIndicatorValue indicators
where
makeIndicatorValue (_, LvIndicator v) = Just v
makeIndicatorValue _ = Nothing
feedInletsToVi :: [Maybe LvValue] -> LvState -> LvState
feedInletsToVi inlets state@(LvState ts sched nstates cvs ivs) =
let
combine inlets cvs = fromList $ map (\(a,b) -> if isNothing a then b else a) $ zip inlets $ toList cvs
in
LvState (ts + 1) sched nstates (combine inlets cvs) ivs
iIndex = 0 -- counter control for both 'for' and 'while'
nIndex = 1 -- limit control for 'for'
testIndex = 0 -- test indicator for 'while'
initCounter :: LvState -> LvState
initCounter state@(LvState ts sched nstates cvs ivs) =
LvState (ts + 1) sched nstates (update iIndex (Just $ LvI32 0) cvs) ivs
nextStep :: LvVI -> LvState -> Int -> LvState
nextStep vi@(LvVI (LvPanel controls indicators) (LvDiagram nodes wires)) state@(LvState ts sched nstates cvs ivs) i' =
let
cvs' = update iIndex (Just $ LvI32 i') cvs
cvs'' :: Seq (Maybe LvValue)
cvs'' = foldl' shiftRegister cvs' (zip indicators (toList ivs))
where
shiftRegister :: Seq (Maybe LvValue) -> ((String, LvIndicator), Maybe LvValue) -> Seq (Maybe LvValue)
shiftRegister cvs ((name, (LvSRIndicator cidx)), ival) =
trc ("shifting" @@@ ival @@@ "to" @@@ cidx) $
update cidx (thisOrThat ival (index cvs cidx)) cvs
where thisOrThat a b = if isNothing a then b else a
shiftRegister cvs _ = cvs
in
LvState (ts + 1) (initialSchedule vi) nstates cvs'' ivs
visible :: LvState -> LvVisibleState
visible state@(LvState ts sched nstate cvs ivs) =
LvVisibleState ts
coerceToInt :: LvValue -> LvValue
coerceToInt v@(LvI32 _) = v
coerceToInt v@(LvDBL d) = LvI32 (floor d)
-- TODO this is implying the ordering given in the description of LvVI,
-- but LabVIEW does not specify it
run :: LvState -> LvVI -> LvState
run state@(LvState _ [] _ _ _) vi = state
run (LvState ts (q@(LvNodeAddr typ idx):qs) nstates cvs ivs) (LvVI (LvPanel controls indicators) (LvDiagram nodes wires)) =
let
state0 = LvState (ts + 1) qs nstates cvs ivs
in
case typ of
LvC ->
fire (fromMaybe (trc ("maybe???" @@@ cvs @@@ idx) $ undefined) $ index cvs idx) (LvPortAddr LvC idx 0) state0
LvN ->
let
updateNode :: LvState -> LvNodeState -> [LvNodeAddr] -> LvState
updateNode st@(LvState ts qs nstates cvs ivs) newNstate newSched = LvState (ts + 1) (qs ++ newSched) (update idx newNstate nstates) cvs ivs
nstate@(LvNodeState _ k values) = index nstates idx
state1 =
if isNothing k
then updateNode state0 (LvNodeState name k (emptyInlets (Data.Sequence.length values))) []
else state0
inlets =
case k of
Nothing -> toList values
Just (LvKFunction kfn kargs) -> map Just kargs
Just (LvKState st) -> trc "reading inlets from KState!?" $ undefined
(name, node) = nodes !! idx
in
case node of
LvSubVI vi -> state1 -- TODO initialize state, run subvi
LvFunction name ->
let
ret =
case k of
Nothing -> applyFunction (visible state1) name (catMaybes $ tsi $ inlets)
Just kf -> (kFn kf) (visible state1) (catMaybes $ tsi $ inlets)
in
trc ("firing function " @@ name) $
case ret of
LvReturn outVals ->
let
firePort st pidx = fire (outVals !! pidx) (LvPortAddr LvN idx pidx) st
state2 = updateNode state1 (LvNodeState name Nothing values) []
in
foldl' firePort state2 (indices outVals)
LvContinue k' ->
updateNode state1 (LvNodeState name (Just k') values) [q]
LvConstant value ->
trc ("firing constant " @@ value) $
fire value (LvPortAddr LvN idx 0) state1
LvStructure typ vi@(LvVI (LvPanel ctrls indics) diagram) ->
let
getControl st idx def = fromMaybe def $ (\state@(LvState ts qs ns cvs ivs) -> index cvs idx) st
getIndicator st idx def = fromMaybe def $ (\state@(LvState ts qs ns cvs ivs) -> index ivs idx) st
runLoop vi shouldStop =
let
state2 =
case k of
Nothing -> initCounter $ feedInletsToVi inlets $ initialState ((sTs state1) + 1) vi
Just (LvKState st) -> st
statek@(LvState _ qk _ _ _) = run state2 vi
nextk =
if not $ null qk
then Just (LvKState statek)
else
if shouldStop statek
then Nothing
else trc ("let's go " @@ (i + 1)) $
trc ("before: " @@ statek) $ Just (LvKState (nextStep vi statek (i + 1)))
where (LvI32 i) = getControl statek iIndex (LvI32 999)
nstate' = (LvNodeState name nextk values)
thisq = if isJust nextk then [q] else []
state3 = LvState ((sTs statek) + 1) (qs ++ thisq) (update idx nstate' nstates) cvs ivs
fireIndicator st (pidx, v) =
trc ("indicator " @@ (pidx, v)) $
case v of
Nothing -> st
Just val -> fire val (LvPortAddr LvN idx pidx) st -- TODO test
in
if isJust nextk
then state3
else trc "firing indicators" $ foldl' fireIndicator state3 (zip (indices indics) (toList $ sIndicatorValues statek))
in
trc ("firing structure " @@ typ) $
case typ of
LvFor -> runLoop vi shouldStop
where
shouldStop st =
trc (i' @@ " >= " @@ n) $ (i' >= n)
where
(LvI32 i) = getControl st iIndex (LvI32 0)
i' = i + 1
LvI32 n = coerceToInt $ getControl st nIndex (LvI32 0)
LvWhile -> runLoop vi shouldStop
where
shouldStop st =
not test
where
8BD0
(LvBoolean test) = getIndicator st testIndex (error "test boolean in 'while' must be set")
LvFeedbackNode initVal ->
let
inputVal = inlets !! 0
in
fire (fromMaybe initVal inputVal) (LvPortAddr LvN idx 0) state1
where
shouldSchedule :: Int -> Seq (Maybe LvValue) -> Bool
shouldSchedule nidx inlets =
let
(name, node) = nodes !! nidx
in
case node of
LvStructure typ vi@(LvVI (LvPanel controls indicators) diagram) ->
find unfilledTunnel (indices controls) == Nothing
where
unfilledTunnel cidx =
case controls !! cidx of
(name, LvTunControl) -> isNothing (index inlets cidx)
(name, LvTunSRControl) -> isNothing (index inlets cidx)
otherwise -> False
otherwise ->
elemIndexL Nothing inlets == Nothing -- all inlets have values
fire :: LvValue -> LvPortAddr -> LvState -> LvState
fire value addr state =
trc ("firing" @@@ addr) $
foldl' checkWire state wires
where
checkWire state (LvWire src dst) =
if addr == src
then propagate dst state
else state
updatePort port value set = update port (Just value) set
propagate dst@(LvPortAddr dtype dnode dport) (LvState ts sched nstates cvs ivs) =
trc ("propagating wire " @@ dst) $
if dtype == LvI
then LvState (ts + 1) sched nstates cvs (updatePort dnode value ivs)
else
let
nstate@(LvNodeState name k inlets) = index nstates dnode
inlets' = updatePort dport value inlets
nstate' = LvNodeState name k inlets' -- FIXME continuation
nstates' = update dnode nstate' nstates
sched' =
let
entry = LvNodeAddr dtype dnode
in
if trc ("should schedule " @@ dnode @@ "?") $ tsi $ (shouldSchedule dnode inlets' && not (elem entry sched))
then sched ++ [entry]
else sched
in
LvState (ts + 1) sched' nstates' cvs ivs
-- ========================================
-- Example programs
-- ========================================
-- TestingFor.vi
-- On continuous run, running this with 0 in the input produces 0,
-- incrementing to 1 it remains at 0, and
-- incrementing to 2 it increments the output forever.
-- This is due to the shift register.
-- Uncommenting the node and the wire that are marked ***
-- stops the endless increment, but it busy-waits.
testingFor =
makeVI
[ -- controls
("input", LvControl (LvDBL 10.0))
]
[ -- indicators
("indicator", LvIndicator (LvDBL (-999.0)))
]
[ -- nodes
--("0", LvConstant (LvDBL 0.00)), -- ***
("For loop", LvStructure LvFor (makeVI
[ -- controls
("i", LvAutoControl),
("N", LvTunControl),
("shift reg out", LvSRControl (LvDBL 0.0))
]
[ -- indicators
("shift reg in", LvSRIndicator 2),
("out", LvTunIndicator LvLastValue)
]
[ -- nodes
("+", LvFunction "+")
]
[ -- wires
nwire "shift reg out" 0 "+" 0,
nwire "i" 0 "+" 1,
zwire "+" "shift reg in",
zwire "+" "out"
]
))
]
[ -- wires
--zwire "0" "shift reg out", -- ***
zwire "input" "N",
zwire "out" "indicator"
]
testingFor2 =
makeVI
[ -- controls
("input", LvControl (LvDBL 10.0))
]
[ -- indicators
("indicator", LvIndicator (LvDBL (-999.0)))
]
[ -- nodes
--("0", LvConstant (LvDBL 0.00)), -- ***
("20", LvConstant (LvDBL 20.00)),
("For loop", LvStructure LvFor (makeVI
[ -- controls
("i", LvAutoControl),
("N", LvTunControl),
("shift reg out", LvTunSRControl)
]
[ -- indicators
("shift reg in", LvSRIndicator 2),
("out", LvTunIndicator LvLastValue)
]
[ -- nodes
("+", LvFunction "+")
]
[ -- wires
nwire "shift reg out" 0 "+" 0,
nwire "i" 0 "+" 1,
zwire "+" "shift reg in",
zwire "+" "out"
]
))
]
[ -- wires
--zwire "0" "shift reg out", -- ***
zwire "input" "N",
zwire "out" "indicator"
]
-- TestingWhile.vi
-- Numeric2 only sets after the for-loop is done,
-- this means the while-loop only starts after its input tunnels have data.
testingWhile =
makeVI
[ -- controls
("input", LvControl (LvDBL 10.0))
]
[ -- indicators
("indicator", LvIndicator (LvDBL (-999.0)))
]
[ -- nodes
--("0", LvConstant (LvDBL 0.00)), -- ***
("For loop", LvStructure LvFor (makeVI
[ -- controls
("i", LvAutoControl),
("N", LvTunControl),
("shift reg out", LvSRControl (LvDBL 0.0))
]
[ -- indicators
("shift reg in", LvSRIndicator 2),
("out", LvTunIndicator LvLastValue)
]
[ -- nodes
("+", LvFunction "+"),
("WaitUntilNextMs", LvFunction "WaitUntilNextMs"),
("100", LvConstant (LvI32 100))
]
[ -- wires
nwire "shift reg out" 0 "+" 0,
nwire "i" 0 "+" 1,
zwire "+" "shift reg in",
zwire "+" "out",
zwire "100" "WaitUntilNextMs"
]
)),
("While loop", LvStructure LvWhile (makeVI
[ -- controls
("i", LvAutoControl),
("while tunnel", LvTunControl)
]
[ -- indicators
("Test", LvIndicator (LvBoolean True)),
("Numeric", LvIndicator (LvDBL 0.0)),
("Numeric 2", LvIndicator (LvDBL 0.0))
]
[ -- nodes
("+", LvFunction "+"),
("<", LvFunction "<"),
("WaitUntilNextMs", LvFunction "WaitUntilNextMs"),
("10", LvConstant (LvI32 10)),
("50", LvConstant (LvI32 50)),
("12345", LvConstant (LvI32 12345))
]
[ -- wires
nwire "i" 0 "<" 0,
nwire "50" 0 "<" 1,
nwire "i" 0 "+" 0,
nwire "while tunnel" 0 "+" 1,
zwire "+" "Numeric",
zwire "12345" "Numeric 2",
zwire "10" "WaitUntilNextMs",
zwire "<" "Test"
]
))
]
[ -- wires
--zwire "0" "shift reg out", -- ***
zwire "input" "N",
zwire "out" "indicator",
zwire "out" "while tunnel"
]
example1 =
makeVI
[ -- controls
("Number of measurements", LvControl (LvI32 10)),
("Delay (sec)", LvControl (LvDBL 0.1))
]
[ -- indicators
("XY graph", LvIndicator (LvCluster [LvArray 1 (LvDBL 0.0), LvArray 1 (LvDBL 0.0)]))
]
[ -- nodes
("1000", LvConstant (LvDBL 1000.00)),
("Delay * 1000", LvFunction "*"),
("For loop", LvStructure LvFor (makeVI
[ -- controls
("i", LvAutoControl),
("N", LvTunControl),
("delay tunnel", LvTunControl),
("* tunnel", LvTunControl)
]
[ -- indicators
("keys array", LvTunIndicator LvAutoIndexing),
("values array", LvTunIndicator LvAutoIndexing)
]
[ -- nodes
("WaitUntilNextMs", LvFunction "WaitUntilNextMs"),
("i * delay", LvFunction "*"),
("100", LvConstant (LvI32 100)),
("100 * RandomNumber", LvFunction "*"),
("RandomNumber", LvFunction "RandomNumber")
]
[ -- wires
nwire "i" 0 "i * delay" 0,
nwire "delay tunnel" 0 "i * delay" 1,
zwire "i * delay" "keys array",
zwire "* tunnel" "WaitUntilNextMs",
nwire "100" 0 "100 * RandomNumber" 0,
nwire "RandomNumber" 0 "100 * RandomNumber" 1,
zwire "100 * RandomNumber" "values array"
]
)),
("Bundle", LvFunction "Bundle")
]
[ -- wires
zwire "Number of measurements" "N",
zwire "Delay (sec)" "delay tunnel",
nwire "Delay (sec)" 0 "Delay * 1000" 0,
nwire "1000" 0 "Delay * 1000" 1,
zwire "Delay * 1000" "* tunnel",
nwire "keys array" 0 "Bundle" 0,
nwire "values array" 0 "Bundle" 1,
zwire "Bundle" "XY graph"
]
randomXY =
makeVI
[ -- controls
("Number of measurements", LvControl (LvI32 10)),
("Delay (sec)", LvControl (LvDBL 2.0))
]
[ -- indicators
("XY graph", LvIndicator (LvCluster [LvArray 1 (LvDBL 0.0), LvArray 1 (LvDBL 0.0)]))
]
[ -- nodes
("1000", LvConstant (LvDBL 1000.00)),
("Delay * 1000", LvFunction "*"),
("For loop", LvStructure LvFor (makeVI
[ -- controls
("i", LvAutoControl),
("N", LvTunControl),
("delay tunnel", LvTunControl),
("* tunnel", LvTunControl),
("feedback loop tunnel", LvTunControl)
]
[ -- indicators
("keys array", LvTunIndicator LvAutoIndexing),
("values array", LvTunIndicator LvAutoIndexing)
]
[ -- nodes
("WaitUntilNextMs", LvFunction "WaitUntilNextMs"),
("1", LvConstant (LvI32 1)),
("i + 1", LvFunction "+"),
("i+1 * delay", LvFunction "*"),
("feedback + *", LvFunction "+"),
("100", LvConstant (LvI32 100)),
("100 * RandomNumber", LvFunction "*"),
("RandomNumber", LvFunction "RandomNumber")
]
[ -- wires
zwire "* tunnel" "WaitUntilNextMs",
nwire "i" 0 "i + 1" 0,
nwire "1" 0 "i + 1" 1,
nwire "i + 1" 0 "i+1 * delay" 0,
nwire "delay tunnel" 0 "i+1 * delay" 1,
nwire "feedback loop tunnel" 0 "feedback + *" 0,
nwire "i+1 * delay" 0 "feedback + *" 1,
zwire "feedback + *" "keys array",
nwire "100" 0 "100 * RandomNumber" 0,
nwire "RandomNumber" 0 "100 * RandomNumber" 1,
zwire "100 * RandomNumber" "values array"
]
)),
("insert keys", (LvFunction "InsertIntoArray")),
("insert values", (LvFunction "InsertIntoArray")),
("bundle", (LvFunction "Bundle")),
("max key", (LvFunction "ArrayMax&Min")),
("feedback to keys array", (LvFeedbackNode (LvDBL 0.0))),
("feedback to values array", (LvFeedbackNode (LvDBL 0.0))),
("feedback to loop", (LvFeedbackNode (LvDBL 0.0)))
]
[ -- wires
zwire "Number of measurements" "N",
nwire "Delay (sec)" 0 "Delay * 1000" 0,
nwire "1000" 0 "Delay * 1000" 1,
zwire "Delay * 1000" "* tunnel",
zwire "Delay (sec)" "delay tunnel",
nwire "feedback to keys array" 0 "insert keys" 0,
nwire "keys array" 0 "insert keys" 1,
zwire "insert keys" "feedback to keys array",
zwire "insert keys" "max key",
zwire "max key" "feedback to loop",
zwire "feedback to loop" "feedback loop tunnel",
nwire "feedback to values array" 0 "insert values" 0,
nwire "values array" 0 "insert values" 1,
zwire "insert values" "feedback to values array",
nwire "insert keys" 0 "bundle" 0,
nwire "insert values" 0 "bundle" 1,
zwire "bundle" "XY graph"
]
loop state@(LvState _ q _ _ _) program =
do
trc (show state) (
if not $ null q
then loop (run state program) program
else return ()
)
main =
let
program = testingWhile
in
trc (show program) $ loop (initialState 0 program) program