According to certain embodiments of the present invention, a graphical presentation is generated from a data representation. A lens is applied to reveal a region-of-interest occluded by an occluding portion of an image. The lens includes an extent of the lens, a focal region including a magnification and a transparency to reduce occlusion of the region-of-interest by the occluding portion, and a shoulder region between the extent of the lens and the focal region. The shoulder region provides context for the focal region with respect to a portion of the image outside of the extent of the lens by preserving visibility of information surrounding the focal region. The shoulder region also has decreasing transparency as depth decreases from the focal region to the portion of the image outside of the extent of the lens.