Ray Casting Curved-Quadratic Elements

Wiley, D. F.; Childs, H. R.; Hamann, B.; Joy, K. I.

Ray Casting Curved-Quadratic Elements

Files

201-210.pdf (794.26 KB)

Date

2004

Authors

Wiley, D. F.
Childs, H. R.
Hamann, B.
Joy, K. I.

Publisher

The Eurographics Association

Abstract

We present a method for ray casting curved-quadratic elements in 3D. The advantages of this approach is that a curved element can be directly visualized. Conventionally, higher-order elements are tessellated with several linear elements so that standard visualization techniques can be applied to the linear elements. Our method primarily focuses on how to find an approximation to the intersection between a ray and a curved-quadratic element. Once this approximation is found, conventional accumulation and color mapping techniques can be applied to the approximation to produce a volumetric visualization of the element. A cutting plane implementation is also shown that leverages the ray casting technique.

        @inproceedings{:10.2312/VisSym/VisSym04/201-210
,
booktitle = {Eurographics / IEEE VGTC Symposium on Visualization
},
editor = {Oliver Deussen and Charles Hansen and Daniel Keim and Dietmar Saupe
},
title = {{Ray Casting Curved-Quadratic Elements
}},
author = {Wiley, D. F. and 
Childs, H. R. and 
Hamann, B. and 
Joy, K. I.
},
year = {2004
},
publisher = {The Eurographics Association
},
ISSN = {1727-5296
},
ISBN = {3-905673-07-X
},
DOI = {/10.2312/VisSym/VisSym04/201-210
}
}