Exploring scalar fields using critical isovalues | IEEE Conference Publication | IEEE Xplore

Exploring scalar fields using critical isovalues


Abstract:

Isosurfaces are commonly used to visualize scalar fields. Critical isovalues indicate isosurface topology changes: the creation of new surface components, merging of surf...Show More

Abstract:

Isosurfaces are commonly used to visualize scalar fields. Critical isovalues indicate isosurface topology changes: the creation of new surface components, merging of surface components or the formation of holes in a surface component. Therefore, they highlight interesting isosurface behavior and are helpful in exploration of large trivariate data sets. We present a method that detects critical isovalues in a scalar field defined by piecewise trilinear interpolation over a rectilinear grid and describe how to use them when examining volume data. We further review varieties of the marching cubes (MC) algorithm, with the intention of preserving topology of the trilinear interpolant when extracting an isosurface. We combine and extend two approaches in such a way that it is possible to extract meaningful isosurfaces even when a critical value is chosen as the isovalue.
Date of Conference: 27 October 2002 - 01 November 2002
Date Added to IEEE Xplore: 25 February 2008
Print ISBN:0-7803-7498-3
Conference Location: Boston, MA, USA

References

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