Showing a modified view of the selected region of interest while leaving the rest of the visualization unchanged, these tools extend the metaphor of a magnifying glass to include any sort of useful visual transformation of application data. They can be used to help the user understand various types of information, from text documents to scientific visualizations.
- [Stone et al, 2004]: Maureen C.Stone, Ken Fishkin, Eric A Bier, The Movable Filter as a User Interface Tool,2004.
- [Viega et al, 1996]: John Viega, Matthew J. Conway, George Williams, and Randy Pausch, 3D magic Lenses, ACM, 1996, Pages 51–58.
- [Fox, 1998]:David Fox, NYU Media Research Lab, ACM, Composing Magic Lenses, 1998]