HELP
An object that displays
continuously-generated data.

USE
Use Strip Chart to display the recent history
of data that is continuously generated.  For
each y input value, the x value is
incremented by the specified Step size.  When
new data runs off the right side of the
display, the display automatically scrolls to
show you the latest data.

Strip Chart saves all data sent to it
until it's cleared.

Unlike other graphical displays, array
data will be appended to the end of the Strip
Chart trace, rather than first clearing the
trace.

LOCATION
Display ==> Strip Chart

OBJECT MENU

* Auto Scale ==> - Automatically scales the
display to show the entire trace.

  * Auto Scale - Automatically scales both
  axes.

  * Auto Scale X - Automatically scales the X
  axis.

  * Auto Scale Y - Automatically scales the Y
  axis.
These parameters may be added as control
inputs.

* Clear Control ==> - Parameters that specify
when to clear the display.

  * Clear - Clears the displayed trace(s).
This parameter may be added as a control
input.

  * Clear At PreRun - Clears the displayed
trace(s) when the model or thread is PreRun.

  * Clear At Activate - Clears the displayed
trace(s) when the User Object is activated.

  * Next Curve - Resets the pen to display
the next curve in a family of curves (data
from the next time the display operates)
without clearing the previous curve.  Next
Curve must be selected (or activated) before
each new curve in the family.  This parameter
may be added as a control input.

* Zoom ==> - Scales the display.

  * In - Magnifies the display to contain
only the rectangular region that you selected
with the pointer.  You select the region
after selecting this feature by dragging on
the graph area.  This action outlines the
information with a "rubber band" box.

  * Out 2|5|10|20|50|100 x - Expands the
scales of the display by a factor in both the
X and Y directions about the center.

* Markers ==> - Allows you to find the exact
value of a data point on the displayed curve.
If the data is plotted on a log scale, the
values shown on the marker are the linear
data points.

To move markers to a different trace,
click on the button to the left of the marker
values near the bottom of the display.  The
button cycles through the different line
types and colors of the different traces.

  * Off - No markers are shown.

  * One On - One marker is available.

  * Two On - Two markers are available.

  * Delta On - Two markers are available and
the x and y differences between them are
displayed.

  * Interpolate - When checked, you can place
markers in between the displayed data points.
The marker values displayed are calculated by
linear interpolation.  Default is off.

  * Center - If markers are available, brings
them to the center of the visible part of the
trace.  This is useful if you've scrolled the
display and markers are not visible.

* Grid Type ==> - Sets the type of grid
marks.  The value of the major x division is
shown below the maximum x value (to the right
of the x scale name).  The value of the major
y division is shown below the y scale name.

  * No Grid - No grid lines are shown.

  * Tic Marks - Shows tic marks at the major
and minor divisions on all four sides of the
graph.

  * Axis - Shows tic marks at the major and
minor divisions on the X and Y axes of the
graph.  If the actual axes are scrolled off
the graph area, axis lines are drawn on the
edge closest to the axes.

  * Lines - Shows lines at the major
divisions and tic marks at the minor
divisions.  The X and Y axes are shown as
thick lines.

* Panel Layout ==> - Sets the open view's
appearance.

  * Graph Only - The open view shows only the
graph area and the marker information (if it
exists).  No buttons, scales, scale names, or
traces names are shown.  This layout redraws
quickest and provides the largest display
area.

  * Scales - The open view shows the graph
area, the scales, the scale names, and trace
names.  These fields are not recessed and may
not be edited.  This layout is useful when
recessed fields might be distracting, such as
printing graphs, or when the fields should be
protected from editing on a User Panel.

  * Scales & Sliders - The open view shows
all information about the graph.  It includes
the most information and allows you to modify
the most elements interactively.  It is the
default.

* Traces & Scales - A control panel that
allows you to specify values such as the
names, colors, line and point
characteristics, minimum values, and maximum
values for the traces and/or scales.

Traces:

  * Name:  - The name of the trace that is
displayed to the left of the graph area and
the name of the corresponding input terminal.

  * Scale:  - If you have multiple Y scales,
selects which Y scale is to be used for this
trace.

  * Color:  - The color of the trace.  Each
added trace has a different color than the
existing traces.  Default is Pen 4 (yellow).

  * Lines:  - The format of the line
connecting data points.  Default is a
continuous line.

  * Points:  - The symbol that marks each
data point.  To show unconnected data points,
select the single dot Lines format and the
desired Points symbol.  Default is a dot.

You can add a Traces control input pin.
The control input data must be a record with
the following fields:  1) A TraceNum field
with an Integer value (1 is the top trace),
and 2) one or more of the following fields:
Name, Pen, LineType, PointType.  (The Pen,
LineType, and PointType values are integers
from 0 to n, where 0 draws nothing.)  Refer
to "Records and DataSets" in Using HP VEE|
for further information.

Scales:

  * Show Scale:  - If you have multiple Y
scales, a selection (using a check box) to
specify if the end points and an axis of each
additional right scale is displayed to the
right of the graph area.

  * Scale Name:  - The names of the scales.
They may be set here or on the Scales &
Sliders layout.

  * Maximum:  - The maximum values of the
scales.  They may be set here or on the
Scales & Sliders layout.

  * Minimum:  - The minimum values of the
scales.  They may be set here or on the
Scales & Sliders layout.

  * Mapping:  - The way the x and y data is
mapped to the display.  The mapping may be
linear or log, but the x mapping must be
linear.  Default is Linear.

  * Log Cycles:  - The maximum number of
decades shown (counting down from the maximum
x and y values) when AutoScale is activated.
Log Cycles is only used when the Mapping is
Log.  Log Cycles is useful when a trace
contains a large dynamic range in the data.
Default is 4.

  * Scale Colors - The color of any
background grid or tic marks.  Default is
Gray.

You can add a Scales control input pin.
The control input data must be a record with
the following fields:  1) A Text field Scale
with a value X, Y (or Y1), Y2, or Y3, and 2)
one or more of the following fields:  Name,
Min, Max, and Mapping.  (The Mapping text
value may be Linear or Log).  Refer to
"Records and DataSets" in Using HP VEE| for
further information.

* Add Right Scale - Adds up to two additional
scales to permit traces to have different
scale ranges.  After adding a right scale,
use Traces & Scales to assign a trace to the
scale.

* Plot - Presents the Plotter Configuration
control panel.  When OK is pressed, a copy of
the device's entire display is plotted on the
selected plotter.  This parameter may be
added as a control input.  If the current
Plotter Configuration is in Plot to File
mode, you may specify the destination file or
directory name as string data on the Plot
control input.  If no control input value is
given, the file or directory name specified
in Plotter Configuration will be used.  See
Plotter Config for more information.

NOTES
Inputs must be Scalar or Array 1D that can be
converted to type Real.  Complex, PComplex,
and Spectrum values must be "unbuilt" to Real
Values before being input to a Strip Chart.

Since the Strip Chart retains all the
input data until it is cleared, you may need
to occasionally clear the Strip Chart in a
continuous loop to prevent the model from
running out of memory.

To get the best update speed on the Strip
Chart, set the grid type to No Grid.  Use a
Panel Layout of Graph Only or Scales and set
the X scale maximum value so display
scrolling is infrequent.

Add traces with the Terminals ==> Add Data
Input object menu section.  Up to twelve
traces are allowed.

A Title control input may be added, which
sets the title bar name to the specified text
value.  This allows programmatic control over
the title shown when the display is printed
or plotted.

SEE ALSO
Complex Plane, Magnitude Spectrum, Polar
Plot, Waveform (Time), XY Trace, X vs Y Plot,
and Plotter Config.
