The gap4 Contig Selector is used to display, select and reorder contigs. In the Contig Selector all contigs are shown as colinear horizontal lines separated by short vertical lines. The length of the horizontal lines is proportional to the length of the contigs and their left to right order represents the current ordering of the contigs.
Users can change the contig order by dragging the lines representing the contigs.
This is done by clicking and holding the middle mouse button, or Alt left mouse button, on a line and then moving the mouse cursor. The Contig Selector can also be used to select contigs for processing. For example, clicking with the right mouse button on the line representing a contig will invoke a menu containing the commands which can be performed on that contig. There are several alternative ways of specifying which contig an operation should be performed on. Contigs are identified by the name or number of any reading they contain.