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><H1
CLASS="SECT1"
><A
NAME="USAGE"
>Using gstripchart</A
></H1
><P
>Although the <TT
CLASS="APPLICATION"
>gstripchart</TT
> program
    can be used to plot very nearly any parameter that is of interest,
    the default configuration will produce a useful overview of the
    performance parameters of the system that it's being run on.  This
    section describes basic usage of the
    <TT
CLASS="APPLICATION"
>gstripchart</TT
> program in its default
    configuration.  A description of how to customize the parameters
    that are plotted is provided later in this document.</P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="MAINWIN"
>Basic usage</A
></H2
><P
>When you first start
      <TT
CLASS="APPLICATION"
>gstripchart</TT
>, you see the
      <SPAN
CLASS="INTERFACE"
>main window</SPAN
>, as shown in <A
HREF="usage.html#MAIN"
>Figure 1</A
>.
      <DIV
CLASS="FIGURE"
><A
NAME="MAIN"
></A
><P
><IMG
SRC="main.png"></P
><P
><B
>Figure 1. Stripchart Plotter Main Window</B
></P
></DIV
>
      </P
><P
>In its default configuration, the
      <TT
CLASS="APPLICATION"
>gstripchart</TT
> creates a 200 by 50 pixel
      window that contains two main elements &#8212; a scrolling
      "strip" on the left, and a series of "pens" on the right.  When
      using the default configuration, there will be a "pen" and a
      "strip" line showing the current and recently past values of
      system's CPU utilization in blue, the one minute load average in
      yellow, the percentage of swap space in use in white, and the
      inbound and outbound network traffic volumes in red and green,
      respectively.  If a PPP interface is currently active, a green
      indicator light will be displayed in the upper left corner of
      the main window.</P
><P
>Clicking on the <TT
CLASS="APPLICATION"
>gstripchart</TT
>
      <SPAN
CLASS="INTERFACE"
>main window</SPAN
> with mouse button one will
      pop up a <SPAN
CLASS="INTERFACE"
>numeric value</SPAN
> window.  The
      <SPAN
CLASS="INTERFACE"
>numeric value</SPAN
> window corresponding to the
      main window shown in <A
HREF="usage.html#MAIN"
>Figure 1</A
> is shown below in
      <A
HREF="usage.html#TEXT"
>Figure 2</A
>.
      <DIV
CLASS="FIGURE"
><A
NAME="TEXT"
></A
><P
><IMG
SRC="text.png"></P
><P
><B
>Figure 2. Parameter Numeric Value Window</B
></P
></DIV
>
      This window provides a multi-line, text-based display of the
      name, current value, and full-scale value of each of the
      parameters being plotted.  It can be dismissed either by
      clicking on the <B
CLASS="GUIBUTTON"
>close</B
> button in the
      title bar of the <SPAN
CLASS="INTERFACE"
>numeric value</SPAN
> window, or
      by a second mouse click in the <SPAN
CLASS="INTERFACE"
>main
      window</SPAN
>.
      </P
><P
>Clicking on the <TT
CLASS="APPLICATION"
>gstripchart</TT
>
      <SPAN
CLASS="INTERFACE"
>main window</SPAN
> with mouse button three will
      pop up an <B
CLASS="GUIMENU"
>Application</B
> menu containing
      <B
CLASS="GUIMENUITEM"
>Help</B
>,
      <B
CLASS="GUIMENUITEM"
>About</B
>,
      <B
CLASS="GUIMENUITEM"
>Params</B
>, and
      <B
CLASS="GUIMENUITEM"
>Exit</B
> menu items, as shown below in
      <A
HREF="usage.html#MENU"
>Figure 3</A
>.
      <DIV
CLASS="FIGURE"
><A
NAME="MENU"
></A
><P
><IMG
SRC="menu.png"></P
><P
><B
>Figure 3. Main Window with Pop-Up Menu</B
></P
></DIV
>
      The <B
CLASS="GUIMENUITEM"
>Help</B
> and
      <B
CLASS="GUIMENUITEM"
>About</B
> menu items display this help
      information and the usual about box, respectively, and the
      <B
CLASS="GUIMENUITEM"
>Exit</B
> menu item terminates the
      execution of the <TT
CLASS="APPLICATION"
>stripchart</TT
> program.
      The <B
CLASS="GUIMENUITEM"
>Params</B
> displays a window
      containing a notebook with a page describing the details of each
      parameter, as shown in <A
HREF="usage.html#PARAM"
>Figure 4</A
>.
      <DIV
CLASS="FIGURE"
><A
NAME="PARAM"
></A
><P
><IMG
SRC="param.png"></P
><P
><B
>Figure 4. Parameter Window</B
></P
></DIV
>
      </P
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