11. UTILITIES
11.1. GVPlot
GVPlot replaces WinPlots as our program for printing any type of ORTEC spectrum file. In the interactive mode (it can also be run in command-line mode), a preview of the spectrum plot is displayed on the screen and updated as you adjust the display parameters. You can select the graph colors and symbols for the plot, the start and stop channels or energy range, the printer to be used, and logarithmic or linear vertical scaling. Optionally, you can save these display settings and recall them for later use. The sample, detector, and acquisition descriptions in the file can be printed or suppressed. In addition, you can save, recall, and display the spectrum file’s corresponding analysis information; as well as ROIs stored in the spectrum file or in a separate
.ROI
file.
To start GVPlot, enter gv or gv[space]p in the “
search programs and files
” box then click the
Gv Plot search result; or open the Windows Start menu and click GammaVision then Gv Plot.
You can also run GVPlot in command line mode for use in
.JOB
files, or directly from other
Windows programs (see Section 11.1.5). In this mode, you can either specify the settings or use the defaults.
The spectrum files are associated with GVPlot by the installation program, so double-clicking on a spectrum filename in Windows Explorer will start GVPlot and display that spectrum.
11.1.1. Screen Features
Figure 311 shows the major GVPlot screen features.
1) Title bar, shows the current spectrum filename. On the far right are the standard Windows
Minimize, Maximize, and Close buttons.
2) Menu Bar, shows the available menu commands (which can be selected with either the mouse or keyboard); these functions are discussed in detail in the following sections.
3) Toolbar, beneath the menu bar, contains icons for recalling a spectrum, printing it, and adjusting the vertical and horizontal scale of the spectrum window. You can display or hide the toolbar from the View menu.
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GammaVision
®
v7 (A66-BW) 783620H / 1013
Fig. 311. The Main GVPlot Display.
4) The Expanded Spectrum Window shows all or part of the full histogram; this allows you to zoom in on a particular part of the spectrum and see it in more detail. You can change the vertical and horizontal scaling, and perform a number of operations such as displaying peak information, marking and modifying ROIs, and displaying the residuals (see item 6 below).
This window contains a vertical line called a marker that highlights a particular position in the spectrum. Information about that position is displayed on the Marker Information Line
(see item 7 below). Right-clicking in this window opens a right-mouse-button menu, which is discussed in Section 11.1.4.
5) The Full Spectrum Window shows the full histogram from the file or the Detector memory.
The vertical scale switches between logarithmic and linear in concert with the scaling in the expanded window. When you zoom in on part of the spectrum in the expanded window, the
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