The Spectrum Graph displays your NMR spectrum as a graph of intensity vs. frequency. In addition to the simple zoom and scroll that you may be familiar with in other software, Chenomx NMR Suite includes a number of specialized tools for manipulating your view of your spectrum.
| Menu Location | View > Zoom > Show Entire Spectrum |
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Show Entire Spectrum lets you quickly expand the current view, setting both the vertical and horizontal scales to their largest possible values.
Tips and Tricks
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Show Entire Spectrum is not available when the full spectrum is already visible.
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Show Entire Spectrum is applied by default when you first open any spectrum, unless you have set specific zoom settings in the Preferences.
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| Menu Location | View > Zoom > Set Zoom |
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You can set the Spectrum Graph to display specific frequency (horizontal) and height (vertical) ranges. Displaying specific ranges can be useful for preparing illustrations or focusing on a particular area of the spectrum.
How do I zoom to specific frequency and height ranges?
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Open the Set Zoom dialog.
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Enter the horizontal range (X-Axis) in ppm that you would like to display, or select Entire Axis to zoom out to the full spectrum width.
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Enter the vertical range (Y-Axis) in standard intensity (si) that you would like to display, or select Entire Axis to zoom out to the full spectrum height.
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Click OK.
Tips and Tricks
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When you open the Set Zoom dialog, the values that appear initially correspond to your current view. If you change the values in only one dimension, your current settings in the other dimension remain intact.
| Menu Location | View > Zoom > Undo Zoom |
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| Menu Location | View > Zoom > Redo Zoom |
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Just as Undo and Redo let you recall recent actions, Undo Zoom and Redo Zoom let you recall recent views of the spectrum.
Tips and Tricks
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Redo Zoom is not available until you have used Undo Zoom at least once.
| Menu Location | View > Zoom > Auto Zoom |
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Auto Zoom lets you quickly adjust the vertical scale of the current view so that the tallest peak in the currently displayed frequency range fits nicely in the viewing pane.
Tips and Tricks
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You can apply Auto Zoom to the Spectrum Graph at any time by clicking anywhere on the spectrum with the middle mouse button.
| Menu Location | View > Zoom > Increase Vertical Zoom |
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| Menu Location | View > Zoom > Decrease Vertical Zoom |
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Increase/Decrease Vertical Zoom lets you incrementally adjust the vertical scale of the current view, without changing the displayed frequency range.
Tips and Tricks
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Decrease Vertical Zoom is not available when the full intensity range is visible.
| Menu Location | View > Zoom > Increase Horizontal Zoom |
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| Menu Location | View > Zoom > Decrease Horizontal Zoom |
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Increase/Decrease Horizontal Zoom lets you incrementally adjust the horizontal scale of the current view, without changing the displayed intensity range.
Tips and Tricks
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Decrease Horizontal Zoom is not available when the full frequency range is visible.
Processor offers a number of useful ways to change the current view by interacting directly with the Spectrum Graph.
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Click and drag directly on the spectrum. A red zoom box appears to show you the region you are about to zoom in on.
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Use the horizontal and vertical scroll bars appearing at the bottom and right sides of the Spectrum Graph.
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Middle-click anywhere in the Spectrum Graph to apply an Auto Zoom.
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Select a region using the “Select Region” tool, and double-click in the region, or right-click in the region and select Expand Region. The region expands horizontally to fill the Spectrum Graph.
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Select a region using the “Select Region” tool, and middle-click in the region, or right-click in the region and select Auto Zoom Region. The region expands horizontally to fill the Spectrum Graph, and an Auto Zoom is applied.
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Place the mouse cursor anywhere in the Spectrum Graph, and use the mouse scroll wheel to adjust the Vertical Zoom.
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Place the mouse cursor anywhere in the Spectrum Graph, then hold down the Shift key and use the scroll wheel on your mouse to scroll horizontally.
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Place the mouse cursor anywhere in the Spectrum Graph, press and hold the Control key (Command for Mac OS X) and use the mouse scroll wheel to adjust the Horizontal Zoom.
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Press + (plus) or - (minus) to adjust the Vertical Zoom.
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Press * (asterisk) or / (slash) to adjust the Horizontal Zoom.
The Spectrum Thumbnail appears in the bottom right corner of modules with a Spectrum View, and displays a miniature version of the Spectrum Graph. You can interact with the Spectrum Thumbnail to change what's shown in the Spectrum Graph.
How do I toggle the display of the Spectrum Thumbnail?
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Click Show Spectrum Thumbnail.
How do I use the Spectrum Thumbnail?
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Click and drag in the Spectrum Thumbnail. A red zoom box appears to show you the region you are about to zoom in on, and remains to indicate the region currently displayed in the Spectrum Graph.
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Click and drag inside the zoom box to move it. The Spectrum Graph updates to show the new region.
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Click and drag one of the solid borders of the zoom box to move that border, or click and drag one of the corners to move the size and shape of the displayed region.
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Click or double-click anywhere in the Spectrum Thumbnail outside the zoom box to show the entire spectrum in the Spectrum Graph. The results are the same as using the “Show Entire Spectrum” zoom tool.
You can use the Select Region tool as an alternate zoom function, to specify areas with which to filter the Compound Table, and to obtain information about the selected region itself, including the region's width and the area under various lines within the region.
| Menu Location | View > Zoom > Select Region |
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How do I select a region?
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Activate Select Region.
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Click and drag across a region of the Spectrum Graph to select the region.
Tips and Tricks
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You can also activate Select Region by double-clicking anywhere in the Spectrum View.
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Double-click in the selected region to expand the region horizontally to fill the Spectrum Graph.
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Middle-click in the selected region to expand the region horizontally to fill the Spectrum Graph and apply an Auto Zoom.
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Additional information about the selected region appears in the top right corner of the Spectrum Graph. The information displayed always includes the region width in Hz and ppm. Depending on the module, the display can also include the areas under the compound line, overlay line, simulation line, spectrum line or sum line within the selected region, as well as the percentage of the selected area fit by the sum line (Profiler only).
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In Profiler, you can use the selected region to filter the contents of the Compound Table via Quick Searches. Right-click on the selected region, then click Filter for Compounds in Selected Region.
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The selected region remains in the Spectrum Graph until you click on an empty region of the Spectrum Graph, select a new region using the Select Region tool, or expand the current selected region to fill the Spectrum Graph.
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