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Data Table Display: mmDataTable

The OOMMF application mmDataTable provides a data display service to other OOMMF applications. It accepts data from other applications and displays it in a window. Its typical use is to display the evolving values of quantities computed by a micromagnetic solver program.

The client application(s) which send the mmDataTable data to be displayed control the flow of data. The user, interacting with the mmDataTable window, controls how the data is displayed. Upon launch, mmDataTable displays only a menu bar. Upon user request, a display window below the menubar displays data values.

Each message from a client application contains a list of (name, value, units) triples containing data for display. For example, one element in the list might be {Magnetization 800000 A/m}. The mmDataTable application stores the latest value it receives for each name. Earlier values are discarded when new data arrives from a client.

The Data menu holds a list of all the data names for which the mmDataTable application has received data. Each data name on the list lies next to a checkbutton. When the checkbutton is toggled from off to on, the corresponding data name and its value and units are displayed at the bottom of the display window. When the checkbutton is toggled from off to on, the corresponding data name is removed from the display window. In this way, the user selects from all the data received what is to be displayed. The Data window is detachable so the user may easily click multiple checkbuttons.

In addition to selecting what data names are displayed, the user may also control the format in which the data values are displayed. A mouse click on a displayed data value brings up a dialog box in which the user may specify the formatting the value undergoes (by the Tcl command format) prior to display. The Options menu includes a Format menu item which lets the user set the default formatting for data values.

Under the File menu, the menu item Exit terminates the mmDataTable application.


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OOMMF Documentation Team
September 15, 1998