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Wasmer Consulting - NMPlot - User's Guide - A Brief Tour of NMPlot

NMPlot User's Guide, Chapter 3: A Brief Tour of NMPlot

The following screen capture shows NMPlot's main window as it would appear after opening two files: the plot Sample Plot - Contours.nmp and the grid Sample Grid - Airport Noise.grd. The main components of NMPlot are labeled.

Application Title Bar

NMPlot's application title bar displays the program icon, the program name and version, and buttons to minimize, maximize, and close the application.

Clicking on the program icon displays the Control menu, which contains commands for positioning, resizing, minimizing, maximizing, and closing NMPlot. Double-clicking on the program icon closes NMPlot. Double-clicking on the title bar toggles the window between its maximized and normal sizes.

Menu Bar

The menu bar displays the headings for each of NMPlot's menus.

To display a menu, either click on its heading with the mouse, or press the Alt key plus the underlined letter in the heading of the menu. For example, to display the Help menu, press Alt + H. Note that on some versions of Microsoft Windows, the underline segments will be hidden until you press the Alt key.

To choose an item on a menu, either: click on the item; press the key corresponding to an underlined letter in the item's text; or select the item using the up and down arrow keys, and then press the Enter key.

The result of choosing a menu item depends on the item's type.

Menu items that do not currently apply will appear in gray.


The toolbar displays buttons that provide quick access to frequently used commands in NMPlot. To activate a command, press its toolbar button. If a command is unavailable, its toolbar button will be gray.

The toolbar contains the following buttons:

Button Description
  Print a plot
  Print preview a plot
  Change a plot's options
  Go to a plot's home view
  Activate Panning tool
  Activate Zooming tool
  Activate Display Properties tool
  Activate Measurement tool
  Activate Point of Interest Computation tool
  Activate Grid Computation tool

If you forget the purpose of a toolbar button, briefly hold the mouse cursor over it. A tooltip window will appear, displaying a brief description of the button.

Status Bar

The status bar, located to the right of the toolbar, displays information that varies, depending on the action you are currently performing.

North Indicator

The north indicator shows the direction of north on a plot.

To display the exact direction of north, briefly hold the mouse cursor over the north indicator. A tooltip window will appear, displaying the direction of north in degrees.

When NMPlot is busy performing a lengthy operation, the north indicator is replaced with an animated image of a stopwatch.


The workspace occupies the entire NMPlot application window below the toolbar. When you open a file, a new document window appears in the workspace. Any number of document windows can be open simultaneously.

A document window can be moved and resized in the workspace. Alternatively, it can be maximized so that it fills the entire workspace.

Use the Window menu to manage document windows.

Document Title Bar

The title bar of a document window is similar to the title bar of an application. It displays the document icon, the document file name, and buttons to maximize and close the window.

At any given time, one document window is active. The active window will appear in front of other document windows, and the text on its title bar will be darker. The active document is the focus of your actions: all mouse, keyboard, toolbar, and menu activity is directed to it. In order to work with a document, you must first activate it.

To active a document window, you can:

To maximize a document window, you can:

To restore a maximized document window, you can:

To close a document window, you can:

Plot Document

When you create a new plot, or open an existing one, NMPlot displays it in a plot document window. See Introduction to Plots for an overview of the plot window.

When a plot document is active, you can:

Grid Document

When you open a grid file, NMPlot displays it in a grid document window. This window shows you the contents of the grid file, as described in Viewing Grids. Additional background information about grids can be found in Introduction to Grids.

When a grid document is active, the commands in the Grid menu are available, allowing you to work with the grid. These commands are covered in Working With Grids.

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