Geography Reference
In-Depth Information
respondents spent more time in the map until they found the target. In the middle of
the Fig.
3
, the gaze trajectories are similar for both variants (2D and 3D). Image at
the bottom of shows the situation, where more trajectories were observed in the 2D
map.
Conclusion
Locations of the targets in the experiment tasks were placed in similar
distance from the centre of the image (where respondents gaze starts) for
both variants of the map. Nevertheless in some cases, answers were faster in
2D map, in some cases in the 3D one. Data from the short questionnaire after
the experiments shows that respondents consider the 2D variant more suitable
for answering the question. No significant differences between 2D and 3D
maps were found for four metrics (Time to Answer, Fixation Count, Fixation
Duration Median and Scanpath Length). Respondents also did not clearly
incline to the one of variants from the aesthetics point of view.
Point symbol search was more difficult on the map where 3D effect was
created with use of map tilt (map no. 9). For this map, statistically significant
differences were observed for all recorded eye-tracking metrics. This type of
maps should not be used very often, because users have problems with
orientation in this map.
On the other hand, results for all other stimuli (maps no 1-8) indicate that
in situations when it is reasonable and desirable, the 3D map of the city could
be used instead of the standard two-dimensional. In the three-dimensional
map, more information is contained and the 3D representation did not influ-
ence the reading of the map and its comprehensibility.
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