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The Plotting Objects (oPlot) may be used as a separate plotting window and
for drawing. It is not as fully capable as the main plot, but is still
extremely useful.
In this example a plotting object was added to plot a single channel of the
four.
 | The X and Y axis of the plotting object may be independently
controlled. If A is entered for a scale value, or left blank, that
scale value will follow the main plot on shift, etc. |
| Channel defines what analog channel to use for plotting (0-9). Each
analog trace must use a unique channel number (similar to the ACHN
instruction). In the main plot, 4 analog channels are being plotted
(0-3), so 9 was used to trace this channel, though it is a duplicate
of one in the main plot. To disable plotting of all the channels in
the main plot, set Use Analog for Macro only in the macro menu. (!USEA
ON). |
| The update value is what quantity you desire to plot. In this
example Analog input value 2 (AINVAL2) is being plotted.
Another interesting choice may be the maximum obtained (AINMAXVAL2).
Or, as with all objects, perform a little math before plotting.
[(AINVAL2),TAN] = the tangent of value 2. |
| Of course, to update the plot, the !POBJ Update instruction needs
to be issued. To ensure that every value arriving is plotted, this
object was named beginning with DA_ so the event triggers when data
arrives. Only use !POBJ Update in one area of your macro
configuration. |
| Show Grid enables/disables the grid for the plotting object from being
shown. |
| Refreshes enables this plotting area to be redrawn every time the main
plot refreshes. Disable this if you are using the plotting object for
history.
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| Creating:
!POBJ oPlot.objName=L,T [,W,H,AMIN,AMAX,TMIN,TMAX,Channel,Grid,Refreshes,X
Label,Y Label
!POBJ oPlot.Plot1=60,95
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| Functions:
SET (.Set or may be omitted)
Plots the value
objName.Set=Value
!POBJ Plot1.Set=50
!POBJ Plot1=100
CLEAR (.Clear or .Clr)
Clears the plot of data and all graphics, grids, etc.
!POBJ List2.Clear
Text Tip (.Tip)
Sets the text pop-up tip
!POBJ objName.Tip=Text string
Move (.Move or .M)
Moves the object to new coordinates/changes sizing
!POBJ objName.Move=[L,T,W,H] or !POBJ objName.M=[L,T,W,H]
Set Focus (.SF)
Sets the current focus of the application to the object
!POBJ objName.SF
Grid
Redraws the grid with the optional settings.
objName.Grid=[ymin,ymax,xmin,xmax,x label, y label.]
SNAP
Takes a jpg snapshot of the plotting object using the defined filename
objName.Snap=filename
!POBJ Plot1.Snap plot1
DRAW
The plotting object supports all drawing commands. Note the structure.
@POBJ objName.Draw=FCIR 50a,50a,10,12
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| Update Value (.Update or .U)
Sets the value to plot on data arrival
!POBJ objName.U=[text]
!POBJ Plot1.U=(AINVAL3)
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| Values
(objName.T) - Top coordinate
(objName.L) - Left coordinate
(objName.W) - Width
(objName.H) - Height
(objName.B) - Bottom
(objName.R) - Right
(ME) - Used only in its event code, returns object name.
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