Wsc_OD7_JSC.wsc

<?xml version="1.0"?>

<!-- =================================== -->
<!--  This WSC is designed to read JSC   -->
<!--  Chandrayaan tracking data          -->
<!--                                     -->
<!--  author: jens ramrath               -->
<!--  date: 26 oct 2009                  -->
<!-- =================================== -->


<component>

<?component error="true" debug="true"?>

<registration
    description="reads JSC files"
    progid="Wsc_OD7_JSC.wsc"
    version="1.00"
    classid="{04BFE368-96F1-4CDC-A9AE-B7B201939ED1}"
>
</registration>

<public>

   <!-- Properties -->

   <property name="FileName">
      <get internalName="GetFileName"/>
   </property>

   <property name="SupportsMultipleTrackers">
      <get internalName="GetSupportsMultipleTrackers"/>
   </property>

   <property name="SupportsSave">
      <get internalName="GetSupportsSave"/>
   </property>

   <!-- Methods -->

   <method name="Reset"/>

   <method name="OpenFile">
      <parameter name="newVal"/>
      <parameter name="newFile"/>
   </method>

   <method name="GetObsSet">
      <parameter name="setColl"/>
   </method>

   <method name="GetSupportedObsSet">
      <parameter name="setColl"/>
   </method>

   <method name="SaveObs">
      <parameter name="pEnum"/>
      <parameter name="bAppend"/>
   </method>

   <!-- New method added to support ODTK 6.1.1 -->
   <method name="CloseFile"/>
</public>

<script language="VBScript">
<![CDATA[
	
	'-------------------------------------------------------------------------
	' Member variables
	'-------------------------------------------------------------------------

	Option explicit

	Const ForReading   = 1
	Const ForWriting   = 2

	Const eMTRange            = 1
	Const eMTRightAscension   = 18
	Const eMTDeclination      = 19

	Const eGroundReceiveTime     = 0
	Const eSatelliteTransmitTime = 1
	Const eGroundTransmitTime    = 2
	Const eSatelliteReceiveTime  = 3

	Const eDefaultEquinoxType	= -1
	Const eMeanEquatorAndEquinox	= 0
	Const eTrueEquatorAndEquinox	= 1
	Const eTrueEquatorMeanEquinox	= 2
	Const eICRFEquinoxType		= 3

	Const eDefaultEquinoxEpoch	= -1
	Const eJ2000Epoch			= 0
	Const eB1950Epoch			= 1
	Const eOfDate				= 2
	Const eYearOfObsJan0		= 3
	Const eDayOfObs				= 4

	'-------------------------------------------------------------------------
	' define some global variables we'll be using
	'-------------------------------------------------------------------------

	Dim m_sfileSysObj, m_Stream, m_sFileName

	Set m_sfileSysObj = CreateObject("Scripting.FileSystemObject")

	m_sFileName       = ""

	'-------------------------------------------------------------------------
	' Create obsSet and obs objects for use later on
	'-------------------------------------------------------------------------

	Dim version
	version = "7.0"

	Dim textFile, ObjectStr, versionStr, regValue, ODDBObjectFile
	versionStr = "HKEY_LOCAL_MACHINE\SOFTWARE\AGI\ODTK\" & version & "\InstallHome"
	GetRegKey(versionStr)

	ODDBObjectFile = m_sfileSysObj.Buildpath(regValue, "\ODTK\AppData\Scripts\MeasProviders\WindowsScriptComponents\" & "CreatODDBObjects.txt")
	Set textFile = m_sfileSysObj.OpenTextFile(ODDBObjectFile, ForReading)

	Dim pObsSet
	ObjectStr = textFile.ReadLine
	Set pObsSet = CreateObject(ObjectStr)

	Dim pObs
	ObjectStr = textFile.ReadLine
	Set pObs = CreateObject(ObjectStr)

	'-------------------------------------------------------------------------
	' Function GetFileName()
	'-------------------------------------------------------------------------

	Function GetFileName()

	   GetFileName = m_sFileName

	End Function

	'-------------------------------------------------------------------------
	' SupportsSave property [read-only]
	'-------------------------------------------------------------------------

	Function GetSupportsSave()

	   GetSupportsSave = False

	End Function

	'-------------------------------------------------------------------------
	' SupportsMultipleTrackers property [read-only]
	'-------------------------------------------------------------------------

	Function GetSupportsMultipleTrackers()

	   GetSupportsMultipleTrackers = True

	End Function

	'-------------------------------------------------------------------------
	' Reset method
	'-------------------------------------------------------------------------

	Function Reset()

		if m_sFileName <> "" Then

			Dim newVal
			newVal = m_sFileName
			OpenFile newVal, False

		End if

	End Function

	'-------------------------------------------------------------------------
	' OpenFile method
	'-------------------------------------------------------------------------

	Function OpenFile(newVal, newFile)

		If m_sFileName <> "" Then
			m_Stream.Close
			m_sFileName = ""
		End If

		m_sFileName = newVal

		If newFile Then        
			Set m_Stream = m_sfileSysObj.OpenTextFile(m_sFileName, ForWriting, True)            
		Else        
			Set m_Stream = m_sfileSysObj.OpenTextFile(m_sFileName, ForReading)			
		End If

	End Function

    '-------------------------------------------------------------------------
    ' GetObsSet method
    '-------------------------------------------------------------------------

    Function GetObsSet(setColl)
		Dim line, numSets
		Dim splitData, modJD, facID, satID, dFlag
                Dim value

		numSets = 0
                pObsSet.Clear

		Dim debug
		debug = 0


		' ***** read data *****
		Do Until m_Stream.AtEndOfStream 
					'or numSets > 0

			' ***** parse measurement data *****
			' data formats:
			' 1. Range
			' 	ModJDate, FacID, SatID, 2, Range
			' 2. RA/Dec data
			' 	ModJDate, FacID, SatID, 3, RA, Dec
			' 3. X, Y, Z data
			' 	ModJDate, FacID, SatID, 4, X, Y, Z
			
			line = m_Stream.ReadLine
			
    			splitData = split(line, ",")

			modJD = splitData(0)
			facID = splitData(1)
			satID = splitData(2)
			dFlag = splitData(3)


			'-------------------------------------------------------------------------
			' Initialize observation and obs set
			'-------------------------------------------------------------------------
			pObsSet.Clear()
			pObsSet.Date.Unit	= "ModJDate"
			pObsSet.Date.Value	= modJD

			pObs.Date.Unit	= "ModJDate"
			pObs.Date.Value	= modJD
			
			pObs.TimeOrigin	= eGroundReceiveTime


			' specify tracker and trackee
			pObs.TrackerIDs.Clear()
			pObs.TrackerIDs.Insert 0, facID  		' Facility must be first item
			pObs.TrackerIDs.Insert 1, satID			' Satellite follows Facility


			' data depends on dFlag
			if dFlag = 2 then
				' ***** RANGE *****
				Dim range
				range = splitData(4)

				pObs.MeasureType	= eMTRange
				pObs.Value.Unit		= "km"
				pObs.Value.Value	= range

				pObsSet.Add pObs


				if debug <> 0 then
					msgbox("Time: " & modJD & (Chr(13) & Chr(10)) & "Measurement: " & pObs.MeasureType & (Chr(13) & Chr(10)) & " value: " & pObs.Value.Value & " " & pObs.Value.Unit & (Chr(13) & Chr(10)) & facID & " to " & satID)
				end if

			elseif dFlag = 3 then
				' ***** RA/DEC *****
				Dim ra, dec
				ra  = splitData(4)
				dec = splitData(5)

				' RA
				pObs.MeasureType	= eMTRightAscension
				pObs.Value.Unit		= "radians"
				pObs.Value.Value	= ra

				pObs.EquinoxType 	= eTrueEquatorMeanEquinox
				pObs.EquinoxEpoch	= eDayOfObs

				pObsSet.Add pObs

				' Dec
				pObs.MeasureType	= eMTDeclination
				pObs.Value.Unit		= "radians"
				pObs.Value.Value	= dec

				pObs.EquinoxType	= eTrueEquatorMeanEquinox
				pObs.EquinoxEpoch	= eDayOfObs

				pObsSet.Add pObs

				if debug <> 0 then
					msgbox("Time: " & modJD & (Chr(13)& Chr(10)) & "RA: " & ra & (Chr(13)& Chr(10)) & "Dec: " & dec)
				end if
				
			elseif dFlag = 4 then
				' ***** X Y Z *****
				Dim X, Y, Z
				X = splitData(4)
				Y = splitData(5)
				Z = splitData(6)


				' X
				pObs.MeasureType		= eMTGPSNav_C1
				pObs.Value.Unit			= "km"
				pObs.Value.Value		= X
				pObs.CartesianComponent	= eXComp
				pObsSet.Add pObs

				' Y
				pObs.MeasureType		= eMTGPSNav_C1
				pObs.Value.Unit			= "km"
				pObs.Value.Value		= Y
				pObs.CartesianComponent	= eYComp
				pObsSet.Add pObs

				' Z
				pObs.MeasureType		= eMTGPSNav_C1
				pObs.Value.Unit			= "km"
				pObs.Value.Value		= Z
				pObs.CartesianComponent	= eZComp
				pObsSet.Add pObs


				if debug <> 0 then
					msgbox("Time: " & modJD & (Chr(13)& Chr(10)) & "X: " & X & (Chr(13)& Chr(10)) & "Y: " & Y & (Chr(13)& Chr(10)) & "Z: " & Z)
				end if
			else
				' something not right if in here
				msgbox("something not right with the data")
			end if



			'-------------------------------------------------------------------------
			' Any Valid Meas? 
			'-------------------------------------------------------------------------

			If pObsSet.Count > 0 Then
				numSets = numSets + 1
				setColl.Add pObsSet
			End If

		Loop

        GetObsSet = numSets

		if debug <> 0 then
			msgbox("at end of GetObsSet")
		end if
		
    End Function

    '-------------------------------------------------------------------------
    ' GetSupportedObsSet method
    '-------------------------------------------------------------------------

    Function GetSupportedObsSet(setColl)
        GetSupportedObsSet = 0
    End Function


	'-------------------------------------------------------------------------
	' CloseFile method
	'-------------------------------------------------------------------------

	Function CloseFile()

		If m_sFileName <> "" Then
			m_Stream.Close()
			m_sFileName = ""
		End If

	End Function


    '-------------------------------------------------------------------------
    ' SaveObs method
    '-------------------------------------------------------------------------

	Function SaveObs(pEnum, bAppend)
		SaveObs = 0
	End Function


	Function GetRegKey (regKey)
		Dim objShell
		Set objShell = CreateObject("WScript.Shell")
		regValue = objShell.RegRead(regKey)
		Set objShell = nothing
	End Function

]]>
</script>

</component>