Image Viewer > Quick Reference > Image Viewer Tools

Most of the basic image review tools should be self-explanatory and fairly intuitive to use.

Regular tools are those tools that, when pressed, immediately operate on the selected display set. Rotate, Flip or Invert are examples of such tools. To use regular tools, simply:

1.	Click on the display set of interest to select it.

2.	Click on the desired toolbar button to apply the operation.

Mouse tools are tools whose functions are mapped to a particular mouse button. Window/Level, Zoom, Pan are examples of such tools. The button to which the function is assigned is indicated in the tooltip of the toolbar button. To use mouse tools, simply.

1.	Click on the desired toolbar button.

2.	Click on the display set of interest and use the tool as described briefly in the table below.

Tool	Mouse Button 1	Usage
Stack	Left	Hold mouse button down, drag vertically.
Window/Level	Right	Hold mouse button down, drag horizontally and vertically.
Adjust Opacity	Right	Hold mouse button down, drag horizontally or vertically.
Zoom	Right	Hold mouse button down, drag vertically.
Pan	Left	Hold mouse button down, drag horizontally and vertically.
Magnifying Glass	Left	Hold mouse button down, drag horizontally and vertically.
Probe	Left	Hold mouse button down, drag horizontally and vertically.
Spatial Locator	Right	Hold mouse button down, drag horizontally and vertically.
Draw Shutter	Left	Select shutter shape from drop-down, click in image to begin drawing; subsequent clicks complete the shutter. Note that there is no need to hold the mouse button down.
Ruler	Left	2 clicks define the ruler, one for each endpoint. Note that there is no need to hold the mouse button down.
Elliptical ROI	Left	2 clicks define the corners of the ROI. Note that there is no need to hold the mouse button down.
Rectangular ROI	Left	2 clicks define the corners of the ROI. Note that there is no need to hold the mouse button down.
Polygonal ROI	Left	Repeated clicks draw the ROI. To complete, bring mouse back to first point or simply double-click. Note that there is no need to hold the mouse button down.
Text Area	Left	Single click shows text edit box, enter text and hit ENTER or click away from the text edit box to finish.
Text Callout	Left	First click defines arrow head position, second click defines callout endpoint. Text edit box is shown on second click. Note that there is no need to hold mouse button down while drawing.
Protractor	Left	First and third click define end points, second click defines vertex. Note that there is no need to hold mouse button down while drawing.

For convenience, mouse tools can be configured to be useable even when they are not selected in the toolbar. The default configuration provides the following shortcuts assignments.

Tool	Shortcut 1
Stack	Mouse Wheel
Window/Level	Middle Mouse Button
Zoom	Ctrl-Mouse Wheel
Pan	Ctrl-Left Mouse Button

Note that because there are now so many items on the toolbar, you can change the toolbar to wrap around horizontally so all the items on the toolbar are visible. By default, the toolbar only ever shows one row of buttons with the rest residing in a "spillover". Alternatively, you can also use menu and toolbar customization to hide tools which are less frequently used.

1 The mouse buttons and shortcuts listed are only the factory default assignments. You may configure the actual mouse buttons and shortcuts via menu and toolbar customization.