Anchored navigation: coupling panning operation with zooming and tilting based on the anchor point on a map

  • Authors:
  • Kazuyuki Fujita;Yuichi Itoh;Kazuki Takashima;Yoshifumi Kitamura;Takayuki Tsukitani;Fumio Kishino

  • Affiliations:
  • Osaka University;Osaka University;Osaka University;Tohoku University;Osaka University;Osaka University

  • Venue:
  • Proceedings of Graphics Interface 2010
  • Year:
  • 2010

Quantified Score

Hi-index 0.00

Visualization

Abstract

We propose two novel map navigation techniques, called Anchored Zoom (AZ) and Anchored Zoom and Tilt (AZT). In these techniques, the zooming and tilting of a virtual camera are automatically coupled with users' panning displacements so that the anchor point determined by users always remains in a viewport. This allows users to manipulate a viewport without mode-switching among pan, zoom, and tilt while maintaining a sense of distance and direction from the anchor point. We conducted an experiment to evaluate AZ and AZT and compare them with Pan & Zoom (PZ) [17] and Speed-dependent Automatic Zooming (SDAZ) [10] in off-screen target acquisition tasks and spatial recognition tests. Results showed that our proposed techniques were more effective than those of competitors in reducing time to reach off-screen objects while maintaining users' sense of distance and direction as well as PZ.