Zoom and Scroll

IGV supports zooming and scrolling from full genome to base pair resolution. As an example, the tutorial explores chromosome 7:

1. Jump to chromosome 7 by clicking 7 at the top of the whole genome view or by selecting chr7 from the drop-down chromosome list in the toolbar. Note that the heat map display of chromosome 7 makes it easy to see the amplifications between 53,000,000 and 54,000,000, but the resolution is too coarse for the gene names at the left to be readable.
2. Zoom in by double-clicking on the amplified area of data tracks until you are viewing approximately 21 MB (you can also use the zoom slider):
3. To see the track names, hover over a track. Alternatively, select Tracks>Set Track Height and increase the track size until the track names in the left-most window are legible.