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The scroll bar is the fastest movement, and the scroll bar arrows are the slowest movement. The click-drag method (and the click-pull method) provide controlled, moderate speed movement through the data. To use the click-drag, you use the 'pointer' cursor. Click anywhere near the edge of the image, and while the mouse button is depressed, drag the cursor to the edge of the image; as the cursor gets to the edge of the image, the image will begin scrolling in the opposite direction (see image below). This click-drag movement is reminiscent of the scrolling movement seen in many word processing programs, where the cursor is used to selected text and then begin scrolling/selecting further into the document.
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Grab-
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Drag
This a new feature as of IGB 6.5. Here, you select the 'hand' cursor, by clicking the 'hand' box. You click the cursor in the image ('grab'), and you 'pulldrag' the image in the direction you want it to move. This allows the image and the cursor to move in the same direction (the opposite of click-drag method) (see image below). After moving to an area of interest, you will need to reset the cursor to the arrow (click the arrow box) in order to select annotations or elements within the image.
Autoscroll
This is a very useful feature for moving through images of large data sets. You can set the speed of movement in the window (see image below), and IGB will move through the image, from left to right, at a set speed. Autoscroll can be accessed through the View menu. To make starting and stopping the Autoscroll function even easier, you can set a keyboard shortcut for it. Go to File > Preferences > Shortcuts, and set a shortcut key.
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