@inproceedings{pahud2013toward, author = {Pahud, Michel and Hinckley, Ken and Iqbal, Shamsi and Sellen, Abigail and Buxton, Bill}, title = {Toward compound navigation tasks on mobiles via spatial manipulation}, booktitle = {Proceedings of Mobile HCI 2013 (TOCHI)}, year = {2013}, month = {August}, abstract = {We contrast the Chameleon Lens, which uses 3D movement of a mobile device held in the nonpreferred hand to support panning and zooming, with the Pinch-Flick-Drag metaphor of directly manipulating the view using multi-touch gestures. Lens-like approaches have significant potential because they can support navigation-selection, navigation-annotation, and other such compound tasks by off-loading navigation to the nonpreferred hand while the preferred hand annotates, marks a location, or draws a path on the screen. Our experimental results show that the Chameleon Lens is significantly slower than Pinch-Flick-Drag for the navigation subtask in isolation. But our studies also reveal that for navigation between a few known targets the lens performs significantly faster, that differences between the Chameleon Lens and Pinch-Flick-Drag rapidly diminish as users gain experience, and that in the context of a compound navigation-annotation task, the lens performs as well as Pinch-Flick-Drag despite its deficit for the navigation subtask itself. Demonstration:}, publisher = {ACM}, url = {http://approjects.co.za/?big=en-us/research/publication/toward-compound-navigation-tasks-on-mobiles-via-spatial-manipulation/}, }