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Grokking The Gimp
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3.5.4 Selections and Guides

The image window guides (see Section  2.6.1) can be used to accurately positioning a selection made with the Ellipse Select or Rectangle Select tools. An example of the former is illustrated in Figure  3.27.

Figure 3.27: Positioning an Elliptical Selection Using the Guides
Figure 3.27

The figure shows a clock and also shows horizontal and vertical guides that have been positioned tangent to the perimeter of the clock's upper and left edges.

Choosing the Ellipse Select tool from the Toolbox, the selection is begun by clicking and dragging from the intersection of the two guides. If the Snap to Guides checkbox in the Image:View menu is toggled on, the initial point for the selection snaps to the guides' intersection. Because the guides are tangent to the clock's perimeter, dragging the mouse until the selection touches the two tangent points perfectly completes the selection.

Grokking The Gimp
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