Touch Interaction with 3D Geographical Visualization on Web: Selected Technological and User Issues

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Authors

HERMAN Lukáš STACHOŇ Zdeněk STUCHLÍK Radim HLADÍK Jiří KUBÍČEK Petr

Year of publication 2016
Type Article in Proceedings
Conference ISPRS Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XLII-2/W2
MU Faculty or unit

Faculty of Science

Citation
Web on-line verze příspěvku
Doi http://dx.doi.org/10.5194/isprs-archives-XLII-2-W2-33-2016
Field Earth magnetism, geography
Keywords 3D visualization; interaction; human computer interaction; user issues; touch screen
Description The use of both 3D visualization and devices with touch displays is increasing. In this paper, we focused on the Web technologies for 3D visualization of spatial data and its interaction via touch screen gestures. At the first stage, we compared the support of touch interaction in selected JavaScript libraries on different hardware (desktop PCs with touch screens, tablets, and smartphones) and software platforms. Afterward, we realized simple empiric test (within-subject design, 6 participants, 2 simple tasks, LCD touch monitor Acer and digital terrain models as stimuli) focusing on the ability of users to solve simple spatial tasks via touch screens. An in-house testing web tool was developed and used based on JavaScript, PHP, and X3DOM languages and Hammer.js libraries. The correctness of answers, speed of users’ performances, used gestures, and a simple gesture metric was recorded and analysed. Preliminary results revealed that the pan gesture is most frequently used by test participants and it is also supported by the majority of 3D libraries. Possible gesture metrics and future developments including the interpersonal differences are discussed in the conclusion.
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