Usability of GI for non-Visual
 Perceptualisation: Experiences from
        the HaptiMap Project

               Presenter...
Outline
•   Introduction to HaptiMap
•   Examples of how project partners
    currently use geographical information
•   R...
HaptiMap Overview
• ―Haptic, Audio and Visual interfaces for
  Maps and Location-based Services‖
• Pedestrian Navigation
•...
HaptiMap Overview ..cont’d
• Target Audience: HCI Application
  Developers
• Development of ―Adaptable Toolkit‖, i.e.
  cr...
Current Usage of GI
• Task ―Perceptualisation of geographical
  information and interaction design‖
• 18 studies reported ...
An Exception – TouchMap
• Simplified map shown on touchscreen
• Vibrations felt when features touched
• Data self-generate...
Issues and Opportunities
• Non-visual perceptualisation requires direct
  access to underlying vector structure of data
  ...
Toolkit GI Data Structure
• Geometry




   Point                         LineString                                    Po...
HaptiMap is a large-scale integrating project
funded by the European Commission under the
 7th Framework Programme (FP7-IC...
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Usability of GI for non-visual perceptualisation: Experiences from the HaptiMap Project

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Paul Kelly's presentation in the 2nd Workdshop on usability of geographic information, 23rd March 2010 at UCL, London. See details at http://www.virart.nottingham.ac.uk/GI%20Usability/index.html

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Usability of GI for non-visual perceptualisation: Experiences from the HaptiMap Project

  1. 1. Usability of GI for non-Visual Perceptualisation: Experiences from the HaptiMap Project Presenter: Paul Kelly Electrical & Electronic Engineering Queen’s University Belfast
  2. 2. Outline • Introduction to HaptiMap • Examples of how project partners currently use geographical information • Relevance of GI Usability • Our proposed solution (as yet unproven) 2 Electrical and Electronic Engineering, Queen’s University Belfast
  3. 3. HaptiMap Overview • ―Haptic, Audio and Visual interfaces for Maps and Location-based Services‖ • Pedestrian Navigation • Non-visual representation of spatial information, e.g. Haptic Belt / Viflex / Sonification • (Non-exclusive) focus on blind and partially-sighted users 3 Electrical and Electronic Engineering, Queen’s University Belfast
  4. 4. HaptiMap Overview ..cont’d • Target Audience: HCI Application Developers • Development of ―Adaptable Toolkit‖, i.e. cross-platform software library – Drivers for esoteric hardware – Simplified / usable interface to Geographical Information 4 Electrical and Electronic Engineering, Queen’s University Belfast
  5. 5. Current Usage of GI • Task ―Perceptualisation of geographical information and interaction design‖ • 18 studies reported to EC • Studies that use conventional sources of GI tend to use conventional maps • Studies involving novel non-visual perceptualisation tend to use only self- generated Points of Interest — why? 5 Electrical and Electronic Engineering, Queen’s University Belfast
  6. 6. An Exception – TouchMap • Simplified map shown on touchscreen • Vibrations felt when features touched • Data self-generated, but more complex: <map_feature> <name>BUILDING 4</name> <type>1</type> <id>4</id> <point> <x>21.0</x> <y>18.0</y> </point> <point> <x>0.0</x> <y>2.0</y> </point> <point> <x>4.0</x> <y>0.0</y> </point> <point> <x>0.0</x> <y>-2.0</y> </point> </map_feature> 6 Electrical and Electronic Engineering, Queen’s University Belfast
  7. 7. Issues and Opportunities • Non-visual perceptualisation requires direct access to underlying vector structure of data → steep learning curve • HaptiMap partners from many different backgrounds – opportunity to ―bridge the gap‖ • Simplifying, or demystifying? • Toolkit GI data structure and API is a meeting point of the two ―sides‖ 7 Electrical and Electronic Engineering, Queen’s University Belfast
  8. 8. Toolkit GI Data Structure • Geometry Point LineString Polygon • Attributes: integers, arrays of integers or strings • Toolkit Resource Files to give meaning to integers 8 Electrical and Electronic Engineering, Queen’s University Belfast
  9. 9. HaptiMap is a large-scale integrating project funded by the European Commission under the 7th Framework Programme (FP7-ICT-224675) 9 Electrical and Electronic Engineering, Queen’s University Belfast

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