Fisheye Map Using Stroke-Based Generalization for Web Map Services

• YAMAMOTO Daisuke

  Nagoya Institute of Technology

• MURASE Masaki

  Nagoya Institute of Technology

• TAKAHASHI Naohisa

  Nagoya Institute of Technology

抄録

A fisheye map lets users view both detailed and wide areas. The Focus+Glue+Context map is a fisheye map suited for Web map systems; it consists of a detailed map (i.e., Focus), wide-area map (i.e., Context), and an area to absorb the difference in scales between Focus and Context (i.e., Glue). Because Glue is compressed, the road density is too high to draw all of the roads in this area. Although existing methods can filter roads to draw, they have problems with rendering the road density and connectivity in Glue. This paper proposes an improved method to filter roads in Glue by applying a generalization method based on weighted strokes. In addition, a technique to speed up the proposed method by using a weighted stroke database is described. A prototype Web map system with a high level of response was developed and evaluated in terms of its connectivity, road density, and response.

収録刊行物

• IEICE Transactions on Information and Systems

  IEICE Transactions on Information and Systems E101.D (1), 171-180, 2018

  一般社団法人 電子情報通信学会

キーワード

• fisheye view
• web map service
• stroke

詳細情報

• CRID: 1390001204380969216
• NII論文ID: 130006301175
• DOI: 10.1587/transinf.2017edp7014
• ISSN: 17451361
• ISSN: 09168532
• Web Site: https://www.jstage.jst.go.jp/article/transinf/E101.D/1/E101.D_2017EDP7014/_pdf
• 本文言語コード: en
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