NDLI: A Streamline Placement Method Highlighting Flow Field Topology

Content Provider	IEEE Xplore Digital Library
Author	Wenyao Zhang Bo Sun Yi Wang
Copyright Year	2010
Abstract	Streamline is an important way to visualize flow fields. In this paper, we propose a new streamline placement method. This method seeds streamlines at the centers of sub-fields that are enclosed by existing streamlines or field boundaries. When a streamline is seeded in a sub-field, the sub-field is generally partitioned into one or more small ones. We then continue the placement in the new sub-fields until there are no any empty ones left. The original field is treated as the first unique sub-field. For the efficiency of implementation, a sub-field is modeled as a four-connected empty area in a predefined control grid. When the control grid is properly set, test results show that, our method can generate almost evenly-spaced streamlines everywhere except at the neighborhood of topological components such as critical points and separatrices. Therefore, the topological structure of flow fields is highlighted by the varying density of streamlines without any additional overhead on analyzing the topology. This is the main advantage that is not owned by other placement methods. In addition, the cost of computation in our method is rather low.
Starting Page	238
Ending Page	242
File Size	448604
Page Count	5
File Format	PDF
ISBN	9781424491148
DOI	10.1109/CIS.2010.58
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	seeding strategy Visualization streamlines placement Spirals visualization Data visualization topology Streaming media Feature extraction Cavity resonators Topology flow field
Content Type	Text
Resource Type	Article

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