EMMENU is an ergonomic user interface for TEM users, based on the TCL-NT
software, which is an interactive software package for advanced image processing
running under Microsoft Windows-NT 4.0.
Images are displayed in a protected screen area using an advanced viewport concept. Optional dual display configuration enables the user to separate image - and userinterface displays.
Pentium II PC with at least 256 MB memory
256 color graphic with 1600 x 1200 pixel graphic display
Microsoft Windows-NT 4.0.
1.1 First start
When starting the TCL-NT software the very first time, you are welcomed
by this window:
Either select your name ( if it is already available ) or New,
then click on . If
you selected New you have to introduce yourself as a new user to
Enter the user name and a user specific directory ( the user macros are searched and stored in this directory by default ). You can also click on and the Browse folder dialog will open, where you can select a directory ( = folder ).
If the state of the license code is 'unknown' (see figure below), you
will get a 'Dongle error'; otherwise there is already the correct license
code entered by TVIPS:
In this case just press
to go on and enter the correct license code:
Hint: starting the next time you will see the last user who has used
the software. At this point it is always possible to create a new user.
The program EMMENU is specially designed for acquisition, storage, display and analysis of TEM images including following functions:
The EMMENU software is embedded within the TCL-NT software, so you first
have to launch TCL-NT. After that, the main window is visible on your screen:
As usual in many "Windows" programs the main window consists of five parts (from top to down): the titlebar, the menubar, the toolbar, the clientarea and the statusbar.
In this help the single parts of the program are described. We assume,
that the user is familiar with the use of Windows programs, so we will
not explain what buttons, menus, windows, ... are and how to use the single
features provided by the operation system..
A first, quick overview is given in this chapter, the more specific explanations will follow in the next chapters.
The picture below shows a section from the TCL-NT main window:
The titlebar (= caption) holds the controlelements provided by Windows
NT; in the middle section are the name of the actual TCL-NT user and the
programname 'EMMENU' displayed.
The top menus are located in the menubar, from where they are selected with the left mousebutton. Some of the submenus, within the top menus, correspond with the buttons in the toolbar. The approprate hints will be given when the menus and submenus are discussed in more detail.
The statusbar holds actual information, e.g. about the program state.
The clientarea is used for displaying the images and/or the powerspectra.
Note: The displayed greyvalues (8 bit) are not the same values
as the recorded values from the CCD camera (12, 14) and all calculations
are done with the original values within 16 bit accuracy.
Within the clientarea you can use either the left mousebutton for getting
information about the greyvalue and the overlay
where the mousecursor points to (results are displayed in the statusbar),
or the right mousebutton for zooming a square
section out of the display.
The next picture shows how the measurement works: the point for which the measurement is taken is surrounded by four arrows. In this case the position is x=199 and y=960. The greyvalue and overlay are 255 (= white) and 0 (= no overlay), respectively.
The next picture shows how the zoom works: The square around the cursor
(= the little magnifying glass) is normaly zoomed by a factor of two. Pressing
the <Shift> or the <Ctrl> key at the keyboard while zooming the factor
arizes to four and using both keys together it will be eight.
The size of the zoomed area depends on two things: the zoomfactor and the size of the area where the zoomed section is displayed. In the 'Change Configuration ...' submenu are two choices for this size: either 256x256 or 512x512 pixels. Also the coordinates of the upper left corner of the display region can be set in this menu.
Example: assuming the display size for the zoomed image is 256x256 pixels then the zoomed area is 128x128 pixels when the used zoomfactor is two.
Note: this zoom method works with the 8 bit display data! For a stronger analysis of the data you must use the features from the 'Analysis' command group within the 'EMMENU' menu.
Hint: holding the left/right mousebutton pressed while moving over the
clientarea the outputs from measurement/zoom are updated immediately.