Save to Disk-
Saves the currently-displayed graph into an ASCII file.
Smooth -
Performs Gaussian smoothing on the data being displayed.
Auto Baseline -
Automatically calculates an optimal curved baseline and
subtracts it from the data. The smoothness of the calculated
baseline can be changed by clicking on ``BL smoothness''. The
calculated baseline is displayed for 1 second before
subtracting it.
Manual Baseline-
Allows you to select a baseline manually. Click at several
locations on the graph where you want the baseline to go. Small
squares will appear to indicate where you clicked. You can
click-and-drag these squares to move them. When finished, press
a key or click ``Finished'' to subtract the baseline.
The baseline curve is constructed
using a B-spline (see `B-spline curve'). The squares can be anywhere
on the screen, and do not have to be inside the plot. Also, it is possible to
subtract a baseline from only a portion of the data by placing boxes
only under the portion you wish to change. However, any negative
numbers created by baseline subtraction are truncated to 0's.
Up to 200 boxes (`control points') can be used.
Capture Image-
Clicking `capture' allows you to capture the
graph into a new image. After clicking on `capture', a new image
which includes the graph is automatically created. The
new image is put into the background, behind the image you are
currently scanning, to continue with the next scan.
Change-
Toggles between ``change'' and ``measure'' modes.
Bezier change-
Changes data in current graph using a Bezier curve. If graph has multiple
panels, click on the desired panel before clicking ``Bezier change''
to select which graph to change. After clicking ``Bezier change'',
click on the graph to set the control points. Each point is shown by
a small square and may be re-positioned by clicking within the square.
Clicking ``Finished'' will cause the curve to be substituted for the
data in the graph.
Help-
Calls a help screen.
OK -
Ends plotting, returns to densitometry mode.