<chapter id="workingwithplotsandwindows">
<title>Working with Plots and Windows</title>
<para>
This chapter details the concepts behind plots and windows, and provides information on viewing and
manipulating the layout of plots and windows in &kst;.  The following
diagram illustrates the relationships between windows, plots, and plottable data objects.
</para>

<para>
<inlinemediaobject>
<imageobject>
<imagedata fileref="Diagram-kst-windowplotrelation.png" format="PNG"/>
</imageobject>
<textobject>
<phrase>&kst; Window, Plot, and Curve relationships</phrase>
</textobject>
</inlinemediaobject>
</para>

<para>
As can be seen from the above diagram, each window in &kst; can contain zero or more plots, and each
plot can contain zero or more plottable data objects.
</para>

<sect1 id="plotsandplotdialog">
<title>The Plot Dialog</title>
<para>
The plot dialog provides a central location for managing plots.  To access it, select
<guimenuitem>Edit Plots</guimenuitem> from the <guimenu>Plots</guimenu> menu.  At the top of the dialog
box you should see two drop-down lists:
</para>
<screenshot>
<screeninfo>Top of Plot Dialog</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-plotdialogtop.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Top of Plot Dialog</phrase>
</textobject>
</mediaobject>
</screenshot>

<para>
To modify a plot, select the window that contains the plot from the left drop-down list,
and select the plot itself from the right drop-down list.  New windows can be created by
clicking the button in the middle.
</para>

<para>
At the bottom of the plot dialog are four buttons.  <guibutton>Delete</guibutton> deletes
the currently selected plot, <guibutton>Apply as New</guibutton> applies the current
plot settings to a new plot, <guibutton>Apply Edits</guibutton> applies the plot settings
to the currently selected plot, and <guibutton>Close</guibutton> closes the plot dialog
without applying or saving any settings.
</para>

<para>
The plot settings available on each tab of the plot dialog are described below.
</para>

<sect2 id="plotdialogcontent">
<title>Content</title>
<para>
Below is a screenshot of the <guilabel>Content</guilabel> tab.
</para>
<screenshot>
<screeninfo>Plot Dialog Content Tab</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-plotdialogcontent.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Plot Dialog Content Tab</phrase>
</textobject>
</mediaobject>
</screenshot>

<para>
As the name implies, the settings on this tab specify the content of the plot.
The following are brief explanations of the settings.
</para>

<variablelist>
<varlistentry>
<term><guilabel>Unique plot name</guilabel></term>
<listitem>
<para>
The unique plot name is the identifier for the plot.  There cannot be duplicate plot names.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Displayed objects</guilabel> and <guilabel>Available objects</guilabel></term>
<listitem>
<para>
<guilabel>Displayed objects</guilabel> lists the plottable data objects that
should be plotted in the plot. <guilabel>Available objects</guilabel> lists all the
current plottable data objects in &kst; that are not in the <guilabel>Displayed objects</guilabel>
list. To move an item from one list to the other, first highlight the desired item, and click the
appropriate arrow button in between the two lists (the left arrow to move a item from
<guilabel>Available objects</guilabel> to <guilabel>Displayed objects</guilabel>, and the right
arrow to move a item from <guilabel>Displayed objects</guilabel> to <guilabel>Available objects</guilabel>).
Alternatively, dragging and dropping the items works as well.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Foreground and background colors</guilabel></term>
<listitem>
<para>
Select the foreground and background colors to use for this plot using the standard &kde; color chooser.
 The upper left box indicates the foreground
colour, while the lower right box indicates the background colour.  To edit a colour,
double-click on the desired box, and a standard colour chooser dialog will appear.
Click
<inlinemediaobject>
<imageobject>
<imagedata fileref="Widget-kst-swapcolour.png" format="PNG"/>
</imageobject>
</inlinemediaobject>
to swap the foreground and background colours.  If you wish to quickly switch to a white background and black
foreground, click
<inlinemediaobject>
<imageobject>
<imagedata fileref="Widget-kst-defaultcolours.png" format="PNG"/>
</imageobject>
</inlinemediaobject>
Note that the foreground color only affects the axes lines and axes labels,
and is independent of any colors used to plot data objects.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Re-grid</guilabel> and <guilabel>Columns</guilabel></term>
<listitem>
<para>
Check the <guilabel>Re-grid</guilabel> option to rearrange all plots in the selected window in a
grid pattern with the specified number of columns.
</para>
</listitem>
</varlistentry>
</variablelist>

</sect2>

<sect2 id="plotdialoglimits">
<title>Axes</title>
<para>
Below is a screenshot of the <guilabel>Axes</guilabel> tab.
</para>
<screenshot>
<screeninfo>Plot Dialog Axes Tab</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-plotdialoglimits.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Plot Dialog Axes Tab</phrase>
</textobject>
</mediaobject>
</screenshot>

<para>
The settings for the plot axes are specified on this tab. The settings are split into
two identical sections&mdash;an x axis section and a y axis section.
</para>

<variablelist>
<varlistentry>
<term><guilabel>Auto scale</guilabel></term>
<listitem>
<para>
Select this option to let &kst; automatically choose a scale for this axis based on the
highest and lowest values for this axis found in the plotted objects.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Auto up</guilabel></term>
<listitem>
<para>
Select this option to
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Mean-centered</guilabel></term>
<listitem>
<para>
Select this option to center the axis around the mean of the values found in the plot (x values
are used to calculate the mean for the x axis, and y values are used to calculate
the mean for the y axis). Specify
the length of the x axis in the <guilabel>Range</guilabel> text box.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Fixed</guilabel></term>
<listitem>
<para>
Manually specify lower and upper limits for the axis. Enter the limits in the textboxes to the right of
<guilabel>Range</guilabel>.
</para>
</listitem>
</varlistentry>


<varlistentry>
<term><guilabel>Spike Insensitive Auto scale</guilabel></term>
<listitem>
<para>
Select this option to let &kst; automatically choose a scale for the axis that is not necessarily
based on the highest and lowest values found in the plotted objects. In general, <quote>spikes</quote>, or
sudden short increases or decreases in the value, will be ignored when determining the scale.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Logarithmic</guilabel></term>
<listitem>
<para>
Enable this checkbox if you wish to use a logarithmic scale for the axis.
</para>
</listitem>
</varlistentry>

</variablelist>


</sect2>




<sect2 id="plotdialoglabels">
<title>Labels</title>
<para>
Below is a screenshot of the <guilabel>Labels</guilabel> tab.
</para>
<screenshot>
<screeninfo>Plot Dialog Labels Tab</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-plotdialoglabels.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Plot Dialog Labels Tab</phrase>
</textobject>
</mediaobject>
</screenshot>

<para>
Settings for the plot labels can be specified on this tab. Brief descriptions of the settings
are provided below.
</para>

<variablelist>
<varlistentry>
<term><guilabel>Current scalar list</guilabel></term>
<listitem>
<para>
A list of the current scalars defined in &kst;. This list is primarily used to quickly insert
values in the label texts.  Choosing an item from this list will insert the item at the current
text cursor position.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Top label</guilabel></term>
<listitem>
<para>
The label located at the top of the plot. Select a font size and enter the text for the label
using the controls in this row.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Y axis</guilabel></term>
<listitem>
<para>
The label located vertically next to the y axis of the plot. Select a font size and enter
the text for the label using the controls in this row.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>X axis</guilabel></term>
<listitem>
<para>
The label located vertically next to the x axis of the plot. Select a font size and enter
the text for the label using the controls in this row.
</para>
</listitem>
</varlistentry>


<varlistentry>
<term><guilabel>Numbers</guilabel></term>
<listitem>
<para>
The numbers used to label both the x axis and the y axis of the plot. Only the size of the
font can be specified.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Font family</guilabel></term>
<listitem>
<para>
The font used for all labels of the plot.  Select an available font using the drop-down list.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Apply to</guilabel></term>
<listitem>
<para>
Select the plots to which the specified label settings (except Label Text) should be applied.
</para>
<note>
<para>
If <guilabel>All plots</guilabel> or <guilabel>All plots in this window</guilabel> is selected, previous label
settings for the affected plots will be lost.
</para>
</note>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Auto Label</guilabel></term>
<listitem>
<para>
Click this button to automatically generate label texts for all labels on the plot.
The text for <guilabel>Top label</guilabel> will be a list of paths to the data files
used in the plot.  The text for <guilabel>Y axis</guilabel> will be a list of the dependent
variable descriptions (e.g. <quote>Number in Bin</quote> for a histogram).  The text for
<guilabel>X axis</guilabel> will be the name of the vector used as the independent variable.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Labels</guilabel> (preview)</term>
<listitem>
<para>
The preview image at the bottom of the <guilabel>Labels</guilabel> tab provides previews of
all four labels at 100&percnt; zoom.
</para>
</listitem>
</varlistentry>

</variablelist>


</sect2>

<sect2 id="plotdialoglegend">
<title>Legend</title>
<para>
Below is a screenshot of the <guilabel>Legend</guilabel> tab.
</para>
<screenshot>
<screeninfo>Plot Dialog Legend Tab</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-plotdialoglegend.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Plot Dialog Legend Tab</phrase>
</textobject>
</mediaobject>
</screenshot>

<para>
Legend settings for the plot can be specified on this tab; most of these settings concern the
appearance of the legend.  The legend itself is optional.
</para>

<variablelist>
<varlistentry>
<term><guilabel>Show legend</guilabel></term>
<listitem>
<para>
This option enables or disables the legend for the plot.  If you wish to use a legend, you must
select this checkbox.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Display in legend box</guilabel></term>
<listitem>
<para>
Select this option to display a border around the legend.  Selecting this option also allows the background
of the legend to be set using the color chooser located on this tab.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Alignment</guilabel></term>
<listitem>
<para>
The horizontal (left and right) alignment of the items in the legend.  The available settings in the drop-down list are
<guilabel>Right</guilabel>, <guilabel>Center</guilabel>, and <guilabel>Left</guilabel>.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Font family</guilabel></term>
<listitem>
<para>
The font to use for the legend text.  Select a font from the drop-down list.
</para>
</listitem>
</varlistentry>


<varlistentry>
<term><guilabel>Font size</guilabel></term>
<listitem>
<para>
The size of the legend text.  Note that the size is not specified in points, but is relative to a default
size of 0.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Colors</guilabel></term>
<listitem>
<para>
This widget can be used to specify the colour of the legend text.  The upper left box indicates the foreground
colour, while the lower right box indicates the background colour (applicable only if <guilabel>Display in legend box</guilabel>
is checked).  To edit a colour,
double-click on the desired box, and a standard colour chooser dialog will appear.
Click
<inlinemediaobject>
<imageobject>
<imagedata fileref="Widget-kst-swapcolour.png" format="PNG"/>
</imageobject>
</inlinemediaobject>
to swap the foreground and background colours.  If you wish to quickly return to the default colours, click
<inlinemediaobject>
<imageobject>
<imagedata fileref="Widget-kst-defaultcolours.png" format="PNG"/>
</imageobject>
</inlinemediaobject>
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Apply to</guilabel></term>
<listitem>
<para>
Select the plots to apply the specified legend settings to.
</para>
<note>
<para>
If <guilabel>All plots</guilabel> or <guilabel>All plots in this window</guilabel> is selected, previous legend
settings for the affected plots will be lost.
</para>
</note>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Legend</guilabel> (preview)</term>
<listitem>
<para>
The image at the bottom of this tab provides a preview of the legend text at
100&percnt; zoom.  Among other things, the preview can be useful in determining appropriate font sizes.
</para>
</listitem>
</varlistentry>

</variablelist>


</sect2>

<sect2 id="plotdialogmarkers">
<title>Markers</title>
<para>
Below is a screenshot of the <guilabel>Markers</guilabel> tab.
</para>
<screenshot>
<screeninfo>Plot Dialog Markers Tab</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-plotdialogmarkers.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Plot Dialog Markers Tab</phrase>
</textobject>
</mediaobject>
</screenshot>

<para>
Plot markers provide an easy means of flagging areas of interest on a plot.  The <guilabel>Markers</guilabel>
tab provides full access to plot marker settings and options.  Navigation functions for plot markers are described
in the <link linkend="zoomingandscrollingscrollmenu">Scroll Menu</link> section.
</para>
<tip>
<para>
To quickly create plot markers on a plot, place the mouse cursor over the plot and press the
<keycap>Insert</keycap> key.  A vertical dashed line should appear indicating the position of the
plot marker.
</para>
</tip>

<variablelist>
<varlistentry>
<term><guilabel>New</guilabel> and <guibutton>Add</guibutton></term>
<listitem>
<para>
Use the <guilabel>New</guilabel> text field to manually enter a plot marker value.  Values can be
entered in floating point or scientific notation.  Values in scientific notation must be entered in
the form <literal>mEx</literal> or <literal>mex</literal>, where <literal>m</literal> is the
mantissa and <literal>x</literal> is the exponent.  For example, one way to enter the value 15000 in scientific
notation is by typing <userinput>1.5e4</userinput>. </para>
<para>
Click the <guilabel>Add</guilabel> button to create a new plot marker with the specified value. You will be
warned if duplicate plot markers already exist, or if the entered value is not valid.  Note that plot marker
additions or removals made from the <guilabel>Markers</guilabel> tab are not applied unless
the plot dialog settings are applied.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Defined plot markers</guilabel>, <guibutton>Remove</guibutton>, and <guibutton>Remove All</guibutton></term>
<listitem>
<para>
The list of existing plot markers for this plot are listed under <guilabel>Defined plot markers</guilabel>.
To remove plot markers, highlight the desired markers in the list and click the <guibutton>Remove</guibutton> button.
Multiple markers can be selected for removal by clicking and dragging within the list, or by holding down the
<keycap>Shift</keycap> or <keycap>Ctrl</keycap> key and clicking on items in the list. To remove all plot markers
for this plot, click the <guilabel>Remove All</guilabel> button.  Note that plot marker
additions or removals made from the <guilabel>Markers</guilabel> tab are not applied unless
the plot dialog settings are applied.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Automatic Marker Generation</guilabel></term>
<listitem>
<para>
In addition to individually defining plot markers, curves, equations, power spectra, and histograms
 can be used to automatically
generate plot markers as well.  To use one of these data objects for plot marker generation, check the
<guilabel>Use data object as marker source</guilabel> checkbox and select an item from the drop down list.
Then select the criteria to use for creating plot markers.
Selecting <guilabel>Rising edge</guilabel> causes plot markers to be created when the y value of the
selected data object changes from zero to non-zero.  Selecting <guilabel>Falling edge</guilabel> causes
plot markers to be created when the y value of the selected data object changes from non-zero to zero.
Selecting <guilabel>Both</guilabel> causes plot markers to be created on both rising edges and
falling edges of the data object. In all cases, the x value of the point in the data object with the non-zero
y value is used to create the new plot marker.
</para>
<para>
If the selected data object is subsequently updated, additional plot markers will be created if necessary.
However, plot markers will never be removed as a consequence of data object changes, so manually created
plot markers will never be affected.
</para>
</listitem>
</varlistentry>


</variablelist>


</sect2>

</sect1>


<sect1 id="theplotcontextmenu">
<title>The Plot Context Menu</title>
<para>
When working with plots, right-clicking on any plot will bring up a context menu that
provides commonly used functions.  The following list provides a brief overview of the menu items,
often referring to other sections of this document that describe the functions in more detail.
</para>
<variablelist>
<varlistentry>
<term><guimenuitem>Delete</guimenuitem></term>
<listitem>
<para>
Deletes the plot.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Edit...</guimenuitem></term>
<listitem>
<para>
Brings up the Plot Dialog, with this plot selected.  See the
<link linkend="plotsandplotdialog">Plot Dialog</link> section for information on the settings.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Maximize</guimenuitem></term>
<listitem>
<para>
Expands the plot so that it takes up the entire area of the window.  Uncheck this option
to return the plot to its previous size.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Pause</guimenuitem></term>
<listitem>
<para>
Pauses automatic update of live data.  This menu item duplicates the functionality
of <guimenuitem>Pause</guimenuitem> from the <guimenu>Range</guimenu> menu.  See
<link linkend="zoomingandscrollingworkingwithlivedata">Working with Live Data</link>
for more information.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guisubmenu>Zoom</guisubmenu> (submenu)</term>
<listitem>
<para>
The <guisubmenu>Zoom</guisubmenu> submenu is described in the section entitled
<link linkend="zoomingandscrollingthezoommenu">The Zoom Menu</link>.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guisubmenu>Scroll</guisubmenu> (submenu)</term>
<listitem>
<para>
This menu is described in the section entitled
<link linkend="zoomingandscrollingscrollmenu">The Scroll Menu</link>.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guisubmenu>Edit</guisubmenu> (submenu)</term>
<listitem>
<para>
This submenu displays a list of objects available for editing.  Clicking on an object
name from the submenu displays the Edit dialog for the object. Details on this
dialog are available in the <link linkend="curves">Curves</link>.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guisubmenu>Fit</guisubmenu> (submenu)</term>
<listitem>
<para>
This submenu displays a list of curves, histograms, power spectra, and equations
 that can be fit. Selecting a name from
the submenu displays the Fit Function dialog.   This dialog is similar to the
<link linkend="builtinplugins">plugins dialog</link>,
but displays only those plugins that perform fits.  The input vectors are
selected based on the data object.  In addition, curve appearance properties can be changed,
as the <guilabel>Fit</guilabel> function creates vectors, and curves based on the
vectors.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guisubmenu>Filter</guisubmenu> (submenu)</term>
<listitem>
<para>
This submenu displays a list of data objects that can be filtered. Selecting a name from
the submenu displays the Filter Function dialog.  This dialog is similar to the
<link linkend="builtinplugins">plugins dialog</link>,
but displays only those plugins that perform filtering.  The input vector to be filtered
is selected based on the curve.  In addition, curve appearance properties can be changed,
as the <guilabel>Filter</guilabel> function creates vectors, and curves based on the
vectors.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guisubmenu>Remove</guisubmenu> (submenu)</term>
<listitem>
<para>
This submenu displays a list of curves currently in the plot. Clicking on a curve
name from the submenu removes the curve from the plot (the curve itself, however, is
not removed as a data object).
</para>
</listitem>
</varlistentry>
</variablelist>
</sect1>





<sect1 id="thelabeleditor">
<title>The Label Editor</title>
<para>
The label editor allows custom labels to be placed in arbitrary locations in &kst; plot windows, in addition
to the fixed labels created as part of plots.
To use the label editor, select <guimenuitem>Label Editor</guimenuitem> from the <guimenu>Plots</guimenu>
menu.  The mouse mode will change to label editor mode.  To exit label editor mode, select another mouse mode
(such as XY Mouse Zoom).  The following sections describe the functions available when in label editor mode.
</para>

<sect2 id="thelabeleditor-creatingnewlabels">
<title>Creating New Labels</title>
<para>
To create a new label using the label editor, click anywhere within the x and y axes of a plot where
there is not already an existing label.  The label editor dialog should appear:
</para>
<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-labeleditor.png" format="PNG"/>
</imageobject>
</mediaobject>
</screenshot>
<para>
The following are explanations of the dialog box elements.
</para>
<variablelist>
<varlistentry>
<term><guilabel>Scalars</guilabel></term>
<listitem>
<para>
A list of scalars currently defined in &kst;. Selecting an item from the dropdown list inserts
the value of the item at the current cursor position in <guilabel>Label text</guilabel>.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Label text</guilabel></term>
<listitem>
<para>
The text displayed by the label.  You may enter text manually in this dialog and in combination
with scalars selected from the <guilabel>Scalars</guilabel> dropdown list if you wish.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Font</guilabel></term>
<listitem>
<para>
The font to use for the label text.  Select a font from the dropdown list.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Size</guilabel></term>
<listitem>
<para>
The size of the label text.  0 is the default value.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Rotation</guilabel></term>
<listitem>
<para>
The number of degrees to rotate the label.  Positive values rotate the label clockwise, while negative
values rotate the label counter-clockwise.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Alignment</guilabel></term>
<listitem>
<para>
The horizontal alignment of the label.  Select one of <guilabel>Left</guilabel>, <guilabel>Center</guilabel>,
or <guilabel>Right</guilabel>.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guilabel>Color</guilabel></term>
<listitem>
<para>
Select the color to use for the label text.  Clicking the <inlinemediaobject><imageobject><imagedata fileref="Widget-kst-colourchooser.png" format="PNG"/></imageobject></inlinemediaobject> button displays
the standard &kde; color chooser.  Selecting <guilabel>Use plot color</guilabel> uses the foreground
color specified for the plot.
</para>
</listitem>
</varlistentry>
</variablelist>

<para>
Once you are satisfied with the label settings, click <guibutton>Apply</guibutton> to apply the label settings
without closing the label editor dialog.  Click <guibutton>OK</guibutton> to apply the label settings and close the
dialog.  Alternatively, you can click <guibutton>Close</guibutton> to close the label editor dialog without
applying any label settings.
</para>
</sect2>

<sect2 id="thelabeleditor-editinglabels">
<title>Editing and Deleting Existing Labels</title>
<para>
To edit an existing label, click on the label in the plot. The
<link linkend="thelabeleditor-creatingnewlabels">label editor dialog</link> should be displayed.
You can delete the label from the label editor dialog by clicking the <guibutton>Delete</guibutton> button.
</para>
</sect2>

<sect2 id="thelabeleditor-movinglabels">
<title>Moving Labels</title>
<para>
To move an existing label in label editor mode, simply drag the label to the desired location, anywhere within
the plot. 
</para>
</sect2>
</sect1>


<sect1 id="datamode">
<title>Data Mode</title>
<para>Data mode allows precise viewing of the data points use in a plotted data object.  To toggle data mode,
select <guimenuitem>Data Mode</guimenuitem> from the <guimenu>Plots</guimenu> menu. Now, when the cursor
is moved over a plot, a red dot will indicate the closest data point to the cursor, as shown in the
screenshot below.  The status bar will
display the coordinates of the data point (in terms of the x and y vectors used to plot the data object) in status bar at the
lower right corner of the &kst; window.
The status bar will also display the x, y, and z coordinates of any visible image.  If images overlap, only the coordinates of the
topmost image will be displayed.
Note that all zooming functions are still available while in data mode.
</para>
<screenshot>
<screeninfo>Top of Plot Dialog</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-datamode.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Top of Plot Dialog</phrase>
</textobject>
</mediaobject>
</screenshot>
<tip>
<para>
If the status bar is not visible, make sure <guimenuitem>Show Statusbar</guimenuitem> is checked in the
<guimenu>Status</guimenu> menu.
</para>
</tip>
</sect1>


<sect1 id="zoomingandscrolling">
<title>Zooming and Scrolling</title>
<para>
Zooming and scrolling in plots is easy and intuitive with &kst;.  The following sections explain
the different zooming and scrolling modes.
</para>

<sect2 id="zoomingandscrollingzoommodes">
<title>Mouse Zoom Modes</title>
<para>
To access the different zoom modes, choose one of <guimenuitem>XY Mouse Zoom</guimenuitem>,
<guimenuitem>X Mouse Zoom</guimenuitem>, or <guimenuitem>Y Mouse Zoom</guimenuitem> from the
<guimenu>Plots</guimenu> menu.  The different modes are described below.
</para>

<sect3 id="zoomingandscrollingzoommodesxymousezoom">
<title>XY Mouse Zoom</title>
<para>
In XY Mouse Zoom mode, you can zoom into a specific rectangular area of the plot by simply
clicking and dragging to draw a rectangle where desired. The x and y axes of the plot will
change to reflect the new scale.  This mode is often useful for quickly looking at an interesting
area of the plot without having to specify exact axis scales.
</para>
</sect3>

<sect3 id="zoomingandscrollingzoommodesxmousezoom">
<title>X Mouse Zoom</title>
<para>
In X Mouse Zoom mode, the y axis is fixed.  Zooming in is performed by clicking and dragging a
rectangular area; however, the upper and lower limits of the rectangle will always be equal to
the current upper and lower limits of the y axis.  This mode is often useful for looking at
a certain time range, if the x axis happens to represent a time vector.
</para>
<tip>
<para>
You can quickly switch to X Mouse Zoom mode by holding down <keycap>Ctrl</keycap>.  The mouse
cursor will change to indicate the new mode. Releasing
 <keycap>Ctrl</keycap> will return you to the previous mouse zoom mode.
</para>
</tip>

</sect3>

<sect3 id="zoomingandscrollingzoommodesymousezoom">
<title>Y Mouse Zoom</title>
<para>
In Y Mouse Zoom mode, the x axis is fixed.  Zooming in is performed by clicking and dragging a
rectangular area; however, the left and right limits of the rectangle will always be equal to the
current left and right limits of the x axis.  This mode is often useful for zooming in on data that
is concentrated around a horizontal line.
</para>
<tip>
<para>
You can quickly switch to Y Mouse Zoom mode by holding down <keycap>Shift</keycap>.  The mouse
cursor will change to indicate the new mode. Releasing
 <keycap>Shift</keycap> will return you to the previous mouse zoom mode.
</para>
</tip>
</sect3>

</sect2>

<sect2 id="zoomingandscrollingthezoommenu">
<title>The Zoom Menu</title>
<para>
The <guisubmenu>Zoom</guisubmenu> menu can be accessed by right-clicking on a plot and selecting the
<guisubmenu>Zoom</guisubmenu> submenu from the context menu.  A list of zoom actions and their corresponding
keyboard shortcuts will be displayed.  These actions are described below.
</para>
<informaltable>
<tgroup cols="3">
<thead>
<row>
<entry>Zoom Action</entry>
<entry>Keyboard Shortcut</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry><guimenuitem>Zoom Maximum</guimenuitem></entry>
<entry><keycap>M</keycap></entry>
<entry>Sets both the x axis and the y axis scales so that all data points are displayed.
This is equivalent to the <guilabel>AutoScale</guilabel> setting of the Plot Dialog.</entry>
</row>
<row>
<entry><guimenuitem>Zoom Max Spike Insensitive</guimenuitem></entry>
<entry><keycap>S</keycap></entry>
<entry>Sets both the x axis and the y axis scales so that most data points are displayed.
Spikes, or sudden increases or decreases in x or y values, are excluded from the plot display.</entry>
</row>
<row>
<entry><guimenuitem>Zoom Previous</guimenuitem></entry>
<entry><keycap>R</keycap></entry>
<entry>Returns to the most recent zoom setting used.</entry>
</row>
<row>
<entry><guimenuitem>Y-Zoom Mean-centered</guimenuitem></entry>
<entry><keycap>A</keycap></entry>
<entry>Sets the Y axis so that the mean of the y values in the plot is centered vertically.
The actual zoom level is not changed.</entry>
</row>
<row>
<entry><guimenuitem>X-Zoom Maximum</guimenuitem></entry>
<entry><keycombo action="simul"><keycap>Ctrl</keycap><keycap>M</keycap></keycombo></entry>
<entry>Sets the x axis scale such that the x values for all data points are between the
minimum and maximum of the x axis.  The y axis scale is unaltered.</entry>
</row>
<row>
<entry><guimenuitem>X-Zoom Out</guimenuitem></entry>
<entry><keycombo action="simul"><keycap>Shift</keycap><keysym>Right</keysym></keycombo></entry>
<entry>For a non-logarithmic x axis, increases the length of the x axis by a factor of approximately 0.5, without changing the
midpoint of the x axis.  The y axis scale is unaltered.</entry>
</row>
<row>
<entry><guimenuitem>X-Zoom In</guimenuitem></entry>
<entry><keycombo action="simul"><keycap>Shift</keycap><keysym>Left</keysym></keycombo></entry>
<entry>For a non-logarithmic x axis, decreases the length of the x axis by a factor of approximately 0.5, without changing the
midpoint of the x axis. The y axis scale is unaltered.</entry>
</row>
<row>
<entry><guimenuitem>Toggle Log X Axis</guimenuitem></entry>
<entry><keycap>G</keycap></entry>
<entry>Enables or disables using a logarithmic scale for the x axis.</entry>
</row>
<row>
<entry><guimenuitem>Y-Zoom Maximum</guimenuitem></entry>
<entry><keycombo action="simul"><keycap>Shift</keycap><keycap>M</keycap></keycombo></entry>
<entry>Sets the y axis scale such that the y values for all data points are between the
minimum and maximum of the y axis.  The x axis scale is unaltered.</entry>
</row>
<row>
<entry><guimenuitem>Y-Zoom Out</guimenuitem></entry>
<entry><keycombo action="simul"><keycap>Shift</keycap><keysym>Up</keysym></keycombo></entry>
<entry>For a non-logarithmic y axis, increases the length of the y axis by a factor of approximately 0.5, without changing the
midpoint of the y axis.  The x axis scale is unaltered.</entry>
</row>
<row>
<entry><guimenuitem>Y-Zoom In</guimenuitem></entry>
<entry><keycombo action="simul"><keycap>Shift</keycap><keysym>Down</keysym></keycombo></entry>
<entry>For a non-logarithmic y axis, decreases the length of the y axis by a factor of approximately 0.5, without changing the
midpoint of the y axis.  The x axis scale is unaltered.</entry>
</row>
<row>
<entry><guimenuitem>Toggle Log Y Axis</guimenuitem></entry>
<entry><keycap>L</keycap></entry>
<entry>Enables or disables using a logarithmic scale for the y axis.</entry>
</row>
</tbody>
</tgroup>
</informaltable>
<para>
Many of the zoom actions are best used in conjunction with the various
<link linkend="zoomingandscrollingzoommodes">mouse zoom modes</link>.
</para>
</sect2>

<sect2 id="zoomingandscrollingmatchaxis">
<title>Match Axis</title>
<para>
To quickly change the axes of a plot to match those of another plot, right-click on the plot
and select a different plot name from the <guisubmenu>Match Axis...</guisubmenu> menu.
Both the x and y axes scales of the current plot will change to match those of the selected plot.
Note that this does not permanently tie the axes scales together; changing the zoom on either plot
will unmatch the axes scales again.  To tie the axes scales of two or more plots together, use the
<link linkend="zoomingandscrollingtiedzoom">Tied Zoom</link> feature.
</para>
</sect2>

<sect2 id="zoomingandscrollingscrollmenu">
<title>The Scroll Menu</title>
<para>
Functions for scrolling a plot are available by right-clicking a plot and selecting
the <guisubmenu>Scroll</guisubmenu> submenu from the context menu.
Most scrolling functions and their keyboard shortcuts should be self-explanatory.  To quickly jump
to a plot marker, select <guilabel>Next Plot Marker</guilabel> (to jump right) or
<guilabel>Previous Plot Marker</guilabel> (to jump left).  For more information on plot markers, see
the <link linkend="plotdialogmarkers">Markers</link> section.
</para>
<para>
Assuming non-logarithmic axis scales are used, each function scrolls the plot in
the indicated direction by 0.1 of the current length of the x axis
 (when scrolling left or right), or 0.25 of the current length of the y axis (when scrolling up or down).
</para>
<tip>
<para>
You can also scroll left or right in a plot by using the mouse wheel (if available).
</para>
</tip>

<tip>
<para>
To quickly go forwards or backwards along the x axis, select <guimenuitem>Back 1 Screen</guimenuitem>
or <guimenuitem>Advance 1 Screen</guimenuitem> from the <guimenu>Range</guimenu> menu.  The keyboard
shortcuts, <keycombo action="simul"><keycap>Ctrl</keycap><keysym>Left</keysym></keycombo> and
<keycombo action="simul"><keycap>Ctrl</keycap><keysym>Right</keysym></keycombo> respectively, can be
used as well.
</para>
</tip>
</sect2>


<sect2 id="zoomingandscrollingtiedzoom">
<title>Tied Zoom</title>
<para>
When looking at two or more related plots (for example, two curves on separate plots
both dependent on the same time vector), it can sometimes be useful to zoom or scroll the plots simultaneously.
This is possible using &kst;'s tied zoom feature.  To activate tied zoom, click the small square
at the top-right corner of the plots you wish to tie together.  The squares will turn
black in colour to indicate the plots are tied, as shown below.
</para>
<screenshot>
<screeninfo>Top of Plot Dialog</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-tiedzoom.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Top of Plot Dialog</phrase>
</textobject>
</mediaobject>
</screenshot>
<para>
Zooming and scrolling actions performed on one plot in a group of tied plots will be performed on
 on all the plots in the group.
 To remove a plot from the tied group,
simply click on the small square at the top-right corner of the plot again.
The square will turn white in colour to indicate
the plot is not tied.
</para>
<tip>
<para>
To quickly tie or untie all plots (including plots in other windows), select <guimenuitem>Tied Zoom</guimenuitem>
from the <guimenu>Plots</guimenu> menu, or the corresponding icon on the &kst; toolbar.
</para>
</tip>

</sect2>


<sect2 id="zoomingandscrollingworkingwithlivedata">
<title>Working with Live Data</title>
<para>
&kst; features special zooming and scrolling functions designed to make it easy to work with
<quote>live</quote> data, or data that is being updated while &kst; is running.  These features
are designed to be used in conjunction with the regular zooming and scrolling functions.
</para>
<sect3 id="zoomingandscrollingworkingwithlivedatareadfromend">
<title>Updating Plots Automatically</title>
<para>
To have a plot automatically update as data is being added to a data file, choose
<guimenuitem>Read From End</guimenuitem> from the <guimenu>Range</guimenu> menu.
The plot will automatically scroll to the right periodically, to display new data points.
The update interval can be changed by selecting <guimenuitem>Configure Kst...</guimenuitem>
from the <guimenu>Settings</guimenu> menu.  Specify the update interval in the
<guilabel>Plot Update Timer</guilabel> field.
</para>
</sect3>

<sect3 id="zoomingandscrollingworkingwithlivedatapausingupdate">
<title>Pausing Plot Updates</title>
<para>To pause automatic updating of plots, select <guimenuitem>Pause</guimenuitem> from the
<guimenu>Range</guimenu> menu.  You can still perform zooming and scrolling functions while the
updating is paused.  Selecting <guimenuitem>Read From End</guimenuitem> from the <guimenu>Range</guimenu> menu
will resume automatic updating.
</para>
</sect3>

<sect3 id="zoomingandscrollingworkingwithlivedatachangingdatasampleranges">
<title>Changing Data Sample Ranges</title>
<para>To quickly change sample range settings associated with vectors, select
<guimenuitem>Change Data Sample Ranges</guimenuitem> from the <guimenu>Range</guimenu> menu.
Select one or more vectors, change the desired settings for the vectors,
and click <guibutton>Apply</guibutton> to save the settings.
These settings are a subset of those found in the <link linkend="vectors">Edit Vectors</link> dialog.
</para>
</sect3>

</sect2>

</sect1>

<sect1 id="manipulatingplotlayout">
<title>Manipulating Plot Layout</title>
<para>
Plots in a &kst; window are arranged in layers.  Each plot is positioned on one layer, and each layer
contains one plot.  Thus, plots can overlap, with plots in higher layers taking precedence in visibility
 over those in lower ones.  To change the layout of plots in &kst;, layout mode must be activated.
 Layout mode can be toggled by selecting <guimenuitem>Layout Mode</guimenuitem>
 from the <guimenu>Plots</guimenu> menu.
</para>

<sect2 id="manipulatingplotlayoutcontextmenu">
<title>Layout Mode Context Menu</title>
<para>
 While layout mode is activated, right-clicking on any plot displays
a modified context menu.  The selections available in this menu are listed below.
</para>
<variablelist>
<varlistentry>
<term><guimenuitem>Delete</guimenuitem></term>
<listitem>
<para>
Deletes the plot.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Raise</guimenuitem></term>
<listitem>
<para>
Raises the plot one layer up.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Lower</guimenuitem></term>
<listitem>
<para>
Lowers the plot one layer down.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Raise to Top</guimenuitem></term>
<listitem>
<para>
Raises the plot to the top-most layer, guaranteeing it will be visible.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Lower to Bottom</guimenuitem></term>
<listitem>
<para>
Lowers the plot to the bottom-most layer.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Rename...</guimenuitem></term>
<listitem>
<para>
Selecting this item displays a dialog box that allows the unique name of the
plot to be changed.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Move To</guimenuitem></term>
<listitem>
<para>
Selecting a window name from this submenu moves the plot to the window with the corresponding
name.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Cleanup Layout</guimenuitem></term>
<listitem>
<para>
Arranges the plots in the current window in a tile type pattern, with no overlap between plots.
This action applies to all plots in the current window.
</para>
</listitem>
</varlistentry>
</variablelist>
</sect2>

<sect2 id="manipulatingplotlayoutmovingandresizing">
<title>Moving and Resizing Plots</title>
<para>
Moving and resizing plots in layout mode is analogous to moving and
resizing regular windows. To move a plot, simply click anywhere on the desired plot
and drag the plot. An outline of the plot will appear, indicating where the plot
will be placed.  You can drag plots anywhere within the current window.  To
resize a plot, move the mouse cursor to any edge or corner of the plot. The cursor
will change to indicate that the plot can be resized.  Click and drag the outline of the plot
until the plot is the desired shape and size.
</para>
</sect2>

<sect2 id="manipulatingplotlayoutgroupingplots">
<title>Selecting Multiple Plots and Grouping Plots</title>
<para>
Two or more plots can be selected together in layout mode.  To select the plots,
hold down the <keycap>Shift</keycap> key and either sequentially click on each plot you wish to
select, or drag to draw a dotted rectangle around a group of plots.  The selected plots
will be indicated by a gray border around each plot:
</para>
<screenshot>
<screeninfo>Multiple Selected Plots</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-multipleselectedplots.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Multiple Selected Plots</phrase>
</textobject>
</mediaobject>
</screenshot>

<para>
Multiple selected plots can be moved simultaneously by dragging any single plot that is part of the
selection (note that resizing any plot in the selection
removes the selection). In addition, the layout mode context menu contains three additional items when multiple
plots are selected.  These items are described below.
</para>

<variablelist>
<varlistentry>
<term><guisubmenu>Make Same</guisubmenu></term>
<listitem>
<para>
Resizes all the selected plots in the chosen dimension(s) to match the dimension(s) of the plot from which
the context menu was invoked.  For example, right-clicking on a plot in the group and selecting
<guimenuitem>Width</guimenuitem> from the <guisubmenu>Make Same</guisubmenu> submenu
will match the width of all the plots in the group to the width of the first plot.
If <guimenuitem>Size</guimenuitem>
is chosen, both the width and height of each plot in the selection will change.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Align</guimenuitem></term>
<listitem>
<para>
Aligns all plots in the selection to the plot directly underneath the context menu.  Select from
<guimenuitem>Left</guimenuitem>, <guimenuitem>Right</guimenuitem>, <guimenuitem>Top</guimenuitem>, or
<guimenuitem>Bottom</guimenuitem>.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guisubmenu>Pack</guisubmenu> (submenu)</term>
<listitem>
<para>
The <guisubmenu>Pack</guisubmenu> submenu contains two functions.  <guimenuitem>Pack Horizontally</guimenuitem>
divides the entire width of the plot group evenly between the individual plot widths, while
<guimenuitem>Pack Vertically</guimenuitem> divides the entire height of the plot group evenly between the
individual plot heights.  Packing plots usually results in a staggered or <quote>checkered</quote> pattern.
To align the plots in a grid, use the <guimenuitem>Cleanup Layout</guimenuitem> function of the layout mode
context menu.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Group Objects</guimenuitem></term>
<listitem>
<para>
Groups all the selected plots together.  A group of plots is indicated by a blue outline around the entire
group.  The layout of the plots within a group cannot be altered, but a group of plots can be resized or
moved as a whole in the same way the layout of a single plot can be changed.  Grouped plots remain
grouped even when layout mode is exited, so the <guimenuitem>Maximize</guimenuitem> or
<guimenuitem>Delete</guimenuitem> functions of the
<link linkend="theplotcontextmenu">plot context menu</link> can be used on an entire group.
</para>
<para>
To ungroup a group of plots, simply right-click on the group and select <guimenuitem>Ungroup</guimenuitem>.
</para>
</listitem>
</varlistentry>
</variablelist>

</sect2>

</sect1>


<sect1 id="workingwithwindows">
<title>Working with Windows</title>
<para>
&kst; has a flexible window layout that makes use of Kmdi.  Organizing plots on different windows
allows for efficient viewing and manipulating of plots.
</para>

<sect2 id="windowmdimodes">
<title>MDI Modes</title>
<para>
There is a choice of four different MDI (Multi-Document Interface) modes available.
To select a mode, choose one of the menu items from the <guisubmenu>MDI Mode...</guisubmenu>
submenu of the <guimenu>Window</guimenu> menu.  The selected MDI mode will take effect
immediately.
The sections below provide more information on each mode.
</para>

<sect3 id="mdimode-toplevel">
<title>Top Level Mode</title>
<para>
Top level mode is the mode traditionally used by other &kde; applications. In this mode, the
parent window (the window containing all the main menus, toolbars, and status bars)
is a separate window from the plot windows.  The plot windows, while still functionally
tied to the main window, appear as separate windows on the desktop.
</para>
<para>
To quickly switch between plot windows in top level mode, you can click the buttons on the
parent window, as shown below.
</para>
<screenshot>
<screeninfo>Switching windows in top level mode</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-mditoplevel.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Switching windows in top level mode</phrase>
</textobject>
</mediaobject>
</screenshot>

</sect3>

<sect3 id="mdimode-childframe">
<title>Childframe Mode</title>
<para>
In childframe mode, all the plot windows appear inside the main &kst; window and can be individually
resized.  Each plot window contains buttons for minimizing, maximizing, closing, and docking themselves.
The main &kst; window also contains functions for arranging the plot windows.
The following lists the functionality
of the buttons located in the top right corner of each plot window:
</para>

<variablelist>

<varlistentry>
<term><inlinemediaobject><imageobject>
<imagedata fileref="Widget-kst-undock.png" format="PNG"/>
</imageobject></inlinemediaobject></term>
<listitem>
<para>
Undocks the plot window.  An undocked window is not contained within the main &kst; window,
but is located directly on the desktop.
</para>
<tip>
<para>
You can also undock or dock a window by selecting its name from the <guisubmenu>Dock/Undock</guisubmenu>
submenu of the <guimenu>Window</guimenu> menu.  This is also the only way to dock an undocked window.
</para>
</tip>
</listitem>
</varlistentry>

<varlistentry>
<term><inlinemediaobject><imageobject>
<imagedata fileref="Widget-kst-minimize.png" format="PNG"/>
</imageobject></inlinemediaobject></term>
<listitem>
<para>
Minimizes the plot window.  Since the plot window is contained within the main &kst; window,
clicking this button will minimize the window to a titlebar within the &kst; window.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><inlinemediaobject><imageobject>
<imagedata fileref="Widget-kst-maximize.png" format="PNG"/>
</imageobject></inlinemediaobject></term>
<listitem>
<para>
Maximizes the plot window.  The plot window will take up the entirety of the main &kst;
window.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><inlinemediaobject><imageobject>
<imagedata fileref="Widget-kst-close.png" format="PNG"/>
</imageobject></inlinemediaobject></term>
<listitem>
<para>
Closes the plot window.
</para>
</listitem>
</varlistentry>

</variablelist>

<para>
To quickly switch between plot windows in childframe mode, you can click the buttons on the
parent window, as shown below.
</para>
<screenshot>
<screeninfo>Switching windows in top level mode</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-mditoplevel.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Switching windows in top level mode</phrase>
</textobject>
</mediaobject>
</screenshot>

<para>
To easily organize the plot windows within the main &kst; window, you can choose one of the
tiling functions from the <guisubmenu>Tile...</guisubmenu> submenu of the <guimenu>Window</guimenu>
menu.  These functions are described below.
</para>
<variablelist>
<varlistentry>
<term><guimenuitem>Cascade Windows</guimenuitem></term>
<listitem>
<para>
Cascades the windows starting from the top left corner, maintaining the original window sizes.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Cascade Windows</guimenuitem></term>
<listitem>
<para>
Cascades the windows starting from the top left corner, but resizes each window so that the
bottom right corner of each window reaches the bottom right of the main &kst; window.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Expand Vertically</guimenuitem></term>
<listitem>
<para>
Resizes each window to its maximum height.  The widths of the windows are not changed.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Expand Horizontally</guimenuitem></term>
<listitem>
<para>
Resizes each window to its maximum width.  The heights of the windows are not changed.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Tile Non-overlapped</guimenuitem></term>
<listitem>
<para>
Arranges the windows in a tile pattern, with no windows overlapping and
each window being as close to a square as possible.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Tile Overlapped</guimenuitem></term>
<listitem>
<para>
Arranges the windows in three or four stacks, depending on the number of windows and the main
&kst; window size.
</para>
</listitem>
</varlistentry>

<varlistentry>
<term><guimenuitem>Tile Vertically</guimenuitem></term>
<listitem>
<para>
Arranges the windows in a tile pattern, with each window having maximum height
and no windows overlapping.
</para>
</listitem>
</varlistentry>

</variablelist>




</sect3>


<sect3 id="mdimode-tabpage">
<title>Tab Page Mode</title>
<para>
Tab page mode arranges each plot window on a separate tab within the main &kst; window.  In this
mode, the plot windows are not independently resizeable or moveable&mdash;they conform to the size
and shape of the main &kst; window.
</para>
<para>
To switch between plot windows in tab page mode, you can click on the tabs corresponding to each
window, as shown below.
</para>

<screenshot>
<screeninfo>Switching windows in tab page mode</screeninfo>
<mediaobject>
<imageobject>
<imagedata fileref="Screenshot-kst-mditabpage.png" format="PNG" />
</imageobject>
<textobject>
<phrase>Switching windows in tab page mode</phrase>
</textobject>
</mediaobject>
</screenshot>

</sect3>

<sect3 id="mdimode-ideal">
<title>IDEAl Mode</title>
<para>
IDEAl mode seems to be identical to tab page mode.
</para>
</sect3>

</sect2>

<sect2 id="creatingdeletingwindows">
<title>Creating and Deleting Windows</title>
<para>
New windows in &kst; can be created in a number of ways.  To create
a new, empty, window, select <guimenuitem>New Window</guimenuitem> from the <guimenu>File</guimenu>
menu.  You will be prompted for a unique name for the new window.  You can also create a new window
while creating a new plottable data object.  See <link linkend="curveplacement">Placement</link>
for the specific details.
</para>

<para>
To delete an existing window, simply select <guimenuitem>Close</guimenuitem> from the <guimenu>Window</guimenu>
menu.  To delete all current windows in &kst;, select <guimenuitem>Close All</guimenuitem> from
the <guimenu>Window</guimenu> menu.
</para>
<important>
<para>
When a window is deleted, all plots within that window are deleted as well.  However, data objects, such
as curves, are not deleted.
</para>
</important>
</sect2>

<sect2 id="addingremovingplotsfromwindows">
<title>Moving Plots Between Windows</title>
<para>
To move a plot from one window to another, you can use the <guimenuitem>Move To</guimenuitem> function of the
<link linkend="manipulatingplotlayoutcontextmenu">layout mode context menu</link>.  
</para>


</sect2>
</sect1>


</chapter>
