Question
Transcribed Text
Notes
Public variables: At minimal you need to have the TEMP value as public so it can retain value
Other variables can be made public if you choose.
Bonus: If you plan on doing the bonus work you will also need the following public variables, a
Boolean value for logging being true or false.
Create a filestream and writer object
Interface: You must have progress bars to visually display the amount of coolant flow and control
rod use. They must have their limits set to those listed for both in the project document to
prevent non valid values
Note! You must use the error handling code for adding or removing values from the progress
bars as we saw them in controldemo.zip
Buttons must be used to add or remove value from them as well, not textboxes.
Whatever the value of the progress bars are their numeric value needs to be shown in addition
to the visual presentation the bar itself provides.
Flow of timer tick event -
pull values from the progress bars
begin to build tempadd
tempadd = controlrod(rod value) < this will set initial 200 degrees!
tempadd = coolant(coolant value, tempadd)
tempadd = tempadd minus 30 degrees
TEMP = TEMP plus tempadd
Now, we only care about TEMP as it is what will be fed to the other functions
Order of calling these functions is important as each delivers the value the following function will
need. You CANNOT simply call these in any random order as either null values or incorrect values
WILL result!
TEMP is needed for PSI
PSI is needed for RPM
RPM is needed for POWER
CORESTATUS and TURBINE STATUS can be called now in either order
your tick event must contain a test for the "logging" boolean variable. If TRUE then you will
perform a writeline showing ALL values presented on the interface
Start and stop log buttons
Start - change the logging variable to TRUE and write initial HTML, BODY, and TABLE tags. Also
write the column labels to show what each column will represent in the log
log = True
w.WriteLine("<html><body><table>")
Stop - logging = false and you will close the tags for TABLE, BODY, and HTML
w.WriteLine("</table></Body></html>")
w.Close()
Note for functions: ANY data a function needs MUST be sent in via parameters, NOT public
variables and NOT interface components!
Output all values to the interface.
Textboxes or labels will be fine for output of these values
All interface components MUST be clearly labels as to what they are and do.
Solution Preview
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Public Class Form1' Declaring Public Variable
Public TEMP As Double
Public bolLogging As Boolean
Public w As System.IO.StreamWriter
' Start Button, when click
Private Sub btnStart_Click(sender As Object, e As EventArgs) Handles btnStart.Click
' Timer is enabled
timNukeClk.Enabled = True
' Start button is disabled
btnStart.Enabled = False
' Start button is disabled
btnStop.Enabled = True
End Sub
' Start logging in the form of a web page
Private Sub btnStartLog_Click(sender As Object, e As EventArgs) Handles btnStartLog.Click
' Open file
w = My.Computer.FileSystem.OpenTextFileWriter("test.html", True)
' Setting Logging Boolean Value to True
bolLogging = True
' Writing the web page table headings and portion
w.WriteLine("<html><body><table border='1' style='width:50%'>")
w.WriteLine("<tr><td>Coolant Flow (GPM)</td>")
w.WriteLine("<td>Rod Insertion %</td>")
w.WriteLine("<td>Core Temp.</td>")
w.WriteLine("<td>PSI</td>")
w.WriteLine("<td>Power (Watts)</td>")
w.WriteLine("<td>Turbine (RPM)</td>")
w.WriteLine("<td>Core Status(Watts)</td>")
w.WriteLine("<td>Turbine Status (RPM)</td></tr>")
' Disable Stop Log Button
btnStartLog.Enabled = False
' Enable Save Log Button
btnSaveLog.Enabled = True
End Sub
' Save Log Button, when clicked
Private Sub btnSaveLog_Click(sender As Object, e As EventArgs) Handles btnSaveLog.Click
' Logging boolean value is set to false
bolLogging = False
' Write the closing web page closing tags
w.WriteLine("</table></Body></html>")
' Fiie is closed
w.Close()
' Start Log button is enabled
btnStartLog.Enabled = True
'Save Log button is disabled
btnSaveLog.Enabled = False
End Sub
'Coolant increase flow button, when clicked
Private Sub btnCoolFlUp_Click(sender As Object, e As EventArgs) Handles btnCoolFlUp.Click
' Coolant Flow Progress bar gets increased by 1
pbCoolantFlowV.Increment(1)
End Sub
'Coolant decrease flow button, when clicked
Private Sub btnCoolFlDown_Click(sender As Object, e As EventArgs) Handles btnCoolFlDown.Click
' Coolant Flow Progress bar gets decreased by 1
pbCoolantFlowV.Increment(-1)
End Sub
'Rod insertion increase button, when clicked
Private Sub btnRodInsUp_Click(sender As Object, e As EventArgs) Handles btnRodInsUp.Click
If pbRodInPerV.Value >= 101 Then
pbRodInPerV.Increment(-1)
Else
pbRodInPerV.Increment(1)
End If
End Sub
'Rod insertion decrease button, when clicked
Private Sub btnRodInsDown_Click(sender As Object, e As EventArgs) Handles btnRodInsDown.Click
If pbRodInPerV.Value <= -1 Then
pbRodInPerV.Increment(1)
Else
pbRodInPerV.Increment(-1)
End If
End Sub...
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