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Labeling streets in interactive maps using embedded labels

Published: 04 November 2014 Publication History

Abstract

We consider the problem of labeling linear objects (such as streets) in interactive maps where the user can pan, zoom, and rotate continuously. Our labels contain text (such as street names). They are embedded into the objects they label, i.e., they follow the curvature of the objects, they do not move with respect to the map background, but they scale in order to maintain constant size on the screen. To the best of our knowledge, this is the first work that deals with curved labels in interactive maps.
Our objective is to label as many streets as possible and to select label positions of high quality while forbidding labels to overlap at street crossings. We present a simple but effective algorithm that takes curvature and crossings into account and produces aesthetical labelings. On average over all interaction types, our implementation reaches interactive frame rates of more than 85 frames per second.

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E. Imhof. Positioning names on maps. Amer. Cartogr., 2(2):128--144, 1975.
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S. Maass and J. Döllner. Embedded labels for line features in interactive 3D virtual environments. In Proc. 5th Int. ACM Conf. Computer Graphics, Virtual Reality, Visualization and Interaction in Africa (AFRIGRAPH'07), pages 53--59, 2007.
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S. Seibert and W. Unger. The hardness of placing street names in a Manhattan type map. In G. Bongiovanni, G. Gambos, and R. Petreschi, editors, Proc. 4th Italian Conf. Algorithms Complexity (CIAC'00), volume 1767 of LNCS, pages 102--112. Springer, 2000.
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T. Strijk. Geometric Algorithms for Cartographic Label Placement. PhD thesis, Utrecht University, Department of Computer Science, Jan. 2001.
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M. Vaaraniemi, M. Treib, and R. Westermann. Temporally coherent real-time labeling of dynamic scenes. In Proc. 3rd Int. Conf. Comput. Geospatial Research Appl. (COM.Geo'12), pages 17:1--17:10. ACM, 2012.
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F. Wagner, A. Wolff, V. Kapoor, and T. Strijk. Three rules suffice for good label placement. Algorithmica, 30(2):334--349, 2001.

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cover image ACM Conferences
SIGSPATIAL '14: Proceedings of the 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
November 2014
651 pages
ISBN:9781450331319
DOI:10.1145/2666310
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 04 November 2014

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Author Tags

  1. automated label placement
  2. interactive maps
  3. visualization

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SIGSPATIAL '14
Sponsor:
  • University of North Texas
  • Microsoft
  • ORACLE
  • Facebook
  • SIGSPATIAL

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SIGSPATIAL '14 Paper Acceptance Rate 39 of 184 submissions, 21%;
Overall Acceptance Rate 257 of 1,238 submissions, 21%

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