Lightweight Relief Shearing for Enhanced Terrain Perception on Interactive Maps

@article{Willett2015LightweightRS,
  title={Lightweight Relief Shearing for Enhanced Terrain Perception on Interactive Maps},
  author={Wesley Willett and Bernhard Jenny and Tobias Isenberg and Pierre Dragicevic},
  journal={Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems},
  year={2015}
}
We explore interactive relief shearing, a set of non-intrusive, direct manipulation interactions that expose depth and shape information in terrain maps using ephemeral animations. Reading and interpreting topography and relief on terrain maps is an important aspect of map use, but extracting depth information from 2D maps is notoriously difficult. Modern mapping software attempts to alleviate this limitation by presenting digital terrain using 3D views. However, 3D views introduce occlusion… 
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References

SHOWING 1-10 OF 32 REFERENCES
Interactive Local Terrain Deformation Inspired by Hand-painted Panoramas
TLDR
The advantages and the suitability of applying local geometry deformation to digital panoramas and existing methods to perform such terrain editing with digital means are explored.
Introducing Plan Oblique Relief
TLDR
Inspired by the work of manual mapmakers of the past, the paper begins with a historical review that includes maps by Xaver Imfeld of Switzerland, Erwin Raisz of the United States, and Heinrich Berann of Austria to take a candid look at the advantages and disadvantages of plan oblique relief.
Interactive Design of 3D Maps with Progressive Projection
Abstract The progressive projection is by origin a manual cartographic technique, traditionally used by panoramic landscape painters; however, it is rarely encountered in digitally created
A variational approach for automatic generation of panoramic maps
TLDR
This article takes a variational approach to the design of panoramic maps, and rearranges geographic structures to maximize the visibility of a specified set of features while minimizing the deformation of the landscape's shape.
Fostering Students' Comprehension of Topographic Maps
TLDR
Stereo visualization was more successful than shading in facilitating students' completion of the task, and classroom activities in the earth sciences may benefit from incorporating stereo visualizations into map-learning exercises.
Re-assessing the Role Played by Shaded Relief in Topographic Scale Maps
AbstractHill shading and contouring were examined in relation to how they affected the performance of several tasks of map reading and map interpretation. Evaluation of the experimental results
True-3D in Cartography—Current Hard- and Softcopy Developments
TLDR
For some years, lenticular-foil maps have been the most prominent examples of hardcopy 3D maps, However, softcopy displays have recently been undergoing a very dynamic development triggered by the TV and game industry.
Prevalence of the terrain reversal effect in satellite imagery
TLDR
The findings demonstrate that the illusion is acutely present and caution us that in an interactive environment where people can rotate the display, the authors might be introducing a severe perceptual problem.
Some Objective Tests of the Legibility of Relief Maps
TLDR
The results demonstrate that the choice of an appropriate relief map has a very real effect on the map reader's performance, and that this choice must depend on the way the map is to be used.
3D Scene Manipulation with 2D Devices and Constraints
TLDR
A new system that uses constraints to restrict object motion in a 3D scene, making interaction much simpler and more intuitive and the presented techniques are significantly more efficient than commonly used solutions.
...
1
2
3
4
...