@article{Lopes2016,
title = "Expeditious illustration of layer-cake models on and above a tactile surface ",
journal = "Computers & Geosciences ",
volume = "",
number = "",
pages = " - ",
year = "2016",
note = "",
issn = "0098-3004",
doi = "http://dx.doi.org/10.1016/j.cageo.2016.02.009",
url = "http://www.sciencedirect.com/science/article/pii/S0098300416300334",
author = "Daniel Simões Lopes and Daniel Mendes and Maurício Sousa and Joaquim Jorge",
keywords = "Layer-cake models",
keywords = "Illustrative geology",
keywords = "Sketch-based modeling",
keywords = "Spatial interaction",
keywords = "Stereoscopic visualization ",
abstract = "Abstract Too often illustrating and visualizing 3D geological concepts are performed by sketching in 2D mediums, which may limit drawing performance of initial concepts. Here, the potential of expeditious geological modeling brought by hand gestures is explored. A spatial interaction system was developed to enable rapid modeling, editing, and exploration of 3D layer-cake objects. User interactions are acquired with motion capture and touch screen technologies. Virtual immersion is guaranteed by using stereoscopic technology. The novelty consists of performing expeditious modeling of coarse geological features with only a limited set of hand gestures. Results from usability-studies show that the proposed system is more efficient when compared to a windows-icon-menu-pointer modeling application. "
}