Menu Bars

In the Unix X-Window version, the menu bar automatically wraps to multiple lines if there is not enough space. The program window can be resized so that only the main information window and the menu bar are visible. Images can then be loaded into separate, positionable windows. On occasion, it is necessary to quit and restart tnimage after resizing the window to obtain a multi-line menu bar.

The Motif menus can be ``torn off'' and dragged to one side by clicking on the dashed line at the top of the menu. Thus, it is possible, for example, to have one or more of the menus on the screen permanently and then shrink the main window to an inconspicuous size. These torn-off menus act as permanent pushbuttons, saving tedious repetitive mouse clicking.

Clicking on one of the four large arrows in the information area moves the current image in the direction of the arrow. The distance moved is determined by the ``step value'' which can be changed by the gray + and - keys (KP_add and KP_subtract) or in the ``Config'' dialog.

The main cancel button is always active and interrupts many repetitive operations, such as flood fill, densitometry, circle-drawing mode, etc.

The main paste button copies all opaque pixels in the currently-selected region onto whatever is beneath it.

Tutorial files Five tutorial files are included with Tnimage:

1. DENSITOM.PCX - an image file demonstrating strip densitometry.
2. DENSITO2.TIF - an image file demonstrating spot densitometry.
3. DECONVOL.TIF - an image file demonstrating convolution and deconvolution using FFT (Part 1).
4. DECONVO2.TIF - an image file demonstrating convolution and deconvolution using FFT (Part 2).
5. FILTER.TIF - an image file demonstrating digital filtering using FFT.
6. Also see Section 13.3, ``Macro Programming Guide'' in this manual.