The K Desktop Environment

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4. The Menu Entries

4.1 File

New Plot

Creates a new empty plot to insert items using the dialog Items.

Open Plot File

Opens an existing plot file.

In a plot file all settings of a graphical presentation are stored in ASCII format.

In case of activated setting Autoplot the graphical presentation is displayed immediately.

Open Data File

Opens an existing data file.

The numeric values have to be arranged in rows and columns in an ASCII file. Within a row the values may be separated by commas, tabs, or spaces.

The first character of comment lines has to be #.

The number of rows and columns is detected by kpl.

In case of activated setting Autoplot the graphical presentation is displayed immediately according to the settings done using the dialog Configure Autoplot.

Loading of data files overwrites an eventually displayed presentation. When a data file is to be inserted in an existing graphical presentation, this has to be done by creating a new item using the Edit menu.

Open Recent

Opens a sub menu for selecting one of up to five recently opened plot or data files.

Save

Saves created or edited plot files.

Save As

Allows to save the current graphical presentation in a new plot file.

Close

Closes the current plot file.

Display Plot

Displays the graphical presentation or refreshes after changes.

In case of activated setting Autoplot the graphical presentation is displayed immediately after loading of plot or data files.

PostScript Output

Saves the graphical presentation as a PostScript file in Portrait or Landscape orientation.

In comparison with the output obtained with Print and Print to File, these files may be edited easily. For example, the coordinates of data points are stored without scaling, according to the values from data files or function evaluations.

The output can be used as Encapsulated PostScript to import graphics in other applications. The bounding box is calculated exactly when Calculate PS Bounding Box is checked in the Options menu.

Print

Prints the graphical presentation to a printer chosen from a list or to a file.

New Window

Opens a new instance of kpl.

Close Window

Close the window. If the closed window was the last instance open, kpl will exit.

Exit

Exits kpl.

4.2 Edit

Opens the dialog Items (if not already open), where items of the presentation may be added, edited, deleted, and copied. Also parameter fits of functions to data sets can be performed here. The dialog can be left open during work with kpl.

4.3 View

Zoom In

Increases the magnification by 20 %:

Zoom Out

Decreases the magnification by 20 %:

Zoom

Here the magnification factor of the graphical presentation can be set.

Reload

By this the current data or plot file will be reloaded and presented. Autoplot will be activated.

Reload periodically

Here periodically refreshing of the presentation of plot or data files may be activated. Also the time interval may be set. Autoplot will be activated by refreshing.

4.4 Options

Show Tool Bar

Display of the tool bar is toggled.

Show Status Bar

Display of the status bar is toggled.

Show Function Source

Here the display of the functions source files in the dialogs for function parameters is toggled.

Autoplot

Here the automatic display of the presentation after loading of data or plot files is toggled.

Calculate PS Bounding Box

Here the calculation of the bounding box for generated PostScript files is toggled. The calculation needs GhostScript to be installed. Without calculation the bounding box is set according to the format in the Basic Settings dialog.

Unsaved Changes Warning

Here the display of warnings at unsaved changes is toggled.

Save Options At End

Here the saving of the current window size, the visibility of the dialog Items, the Basic Settings, and the Autoplot Settings at the program's ending is toggled.

This setting itself also will be saved.

Configure Key Bindings

Opens the dialog Configure key bindings, where the shortcuts for the Reload action and the various Scroll actions may be changed.

Configure Basics

Opens the dialog Basic Settings, where the size of the presentation and the colors as well as the output format for function parameters may be preset.

Configure Autoplot

Opens the dialog Autoplot Settings, where the settings for the automatic scaling of data files loaded by command line parameter, by the file menu, or by drag and drop, are done.

Configure Autofit

Opens the dialog Autofit Settings, where the settings for the automatic parameter fittings of functions to data sets from files are performed.

Save Options

Here the current window size, the visibility of the dialog Items, the Basic Settings, the Autoplot Settings, and the Autofit Settings are saved.

4.5 Help

Contents

Here the contents page of the help for kpl is available.

About kpl

Displays essential information about kpl.

About KDE

Displays essential information about KDE.

4.6 Context Menu

Clicking the plot area with the right mouse button brings up a context menu with the most important actions according to the current state.

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