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Thin Data Cubes

As of 11/4/2010, Lispix will read 1-Dimensional SER or TIA files.  These are data cubes which are only one pixel high, in other words they consist of only one scan line. Here are some hints for working with these cubes.

Since the data cube is so thin, nothing will be visible as Lispix first displays it, and selection of sections of the scan line are not possible.  Here are ways to improve the view and make selection easier:

Zoom the window by a factor of 4 or more:  In the expanded Lispix Menu Bar, Zoom / 4.  This makes a long cube window and long slice slider.  To see the more of the cube, use Zoom / Size Window to Image.

Increase the height of the scan line by zooming only in the y-dimension:  Zoom / Zoom Image by Arbitrary Zoom Factor, and type in two numbers for the x and y zoom.  The second number zooms the height of the scan line.

If the line is longer than the window, you can move it using the No Scroll - Drag to Scroll button in the expanded Lispix Menu Bar. 

As with any image, you can move the line around, one pixel at a time, with the arrow keys on your keyboard.

You can also click on the cube window, then use Navigator / Make in the menu bar.  Drag the right side of the Navigator window to enlarge it and make the scan line visible in it.  Click or drag on the Navigator window to place or move the red rectangle, which represents the location of the cube window relative to the whole cube.

Select a portion of the scan line, to plot a sum spectrum for example, using Select / Draw Rectangle.  Drawing the rectangle is easier the taller the window.  You can drag the lower edge of the cube window to increase its height - this will not change the height of the scan line which is controlled by the zoom factor(s).  You can also center the scan line in the window using Drag to Scroll.  For thin cubes only, you can draw a rectangle that extends above and/or below the scan line to select a portion of it.  Lispix uses only the left and right edge of the rectangle for thin cubes and the **Data Cube** / Plot / Sum Spect within Rectangle command.