{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,6,17]],"date-time":"2024-06-17T22:30:58Z","timestamp":1718663458446},"reference-count":11,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2003,7,7]],"date-time":"2003-07-07T00:00:00Z","timestamp":1057536000000},"content-version":"vor","delay-in-days":36,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Computer Graphics Forum"],"published-print":{"date-parts":[[2003,6]]},"abstract":"Abstract<\/jats:title> For analyzing and interpreting results of flow simulations, particle tracing is a well established visualization method. In addition, it is a preliminary step for more advanced techniques such as line integral convolution. For interactive exploration of large data sets, a very efficient and reliable particle tracing method is needed. For wind channel experiments or flight simulations, large unstructured computational grids have become common practice. Traditional approachs, based on numerical integration methods of ordinary differential equations however fail to deliver sufficiently accurate path calculation at the speed required for interactive use. In this paper we extend the local exact approach of Nielson and Jung in such a way that it can be used for interactive particle tracing in large data sets of steady flow simulation experiments. This will be achieved by sophisticated preprocessing using additional memory. For further visual enhancement of the streamline we construct an implicitly defined smooth B\u00e9zier curve that is used for ray tracing. This allows us to visualize additional scalar values of the simulation as attributes to the trajectory and enables the display of high\u2010quality smooth curves without creating any visualization geometry and providing a good impression of the spatial situation at the same time.<\/jats:italic> <\/jats:p> ACM CSS:<\/jats:bold> I.3.3 Computer Graphics\u2014Line and curve generation<\/jats:italic>; I .3.7 Computer Graphics\u2014Raytracing<\/jats:italic>; G.1.2 Numerical Analysis\u2014Spline and piecewise polynomial approximation<\/jats:italic><\/jats:p>","DOI":"10.1111\/1467-8659.00655","type":"journal-article","created":{"date-parts":[[2003,7,7]],"date-time":"2003-07-07T16:18:45Z","timestamp":1057594725000},"page":"133-142","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Local Exact Particle Tracing on Unstructured Grids"],"prefix":"10.1111","volume":"22","author":[{"given":"Peter","family":"Kipfer","sequence":"first","affiliation":[]},{"given":"Frank","family":"Reck","sequence":"additional","affiliation":[]},{"given":"G\u00fcnther","family":"Greiner","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2003,7,7]]},"reference":[{"key":"e_1_2_8_2_2","article-title":"Particle tracing algorithms for 3D curvilinear grids","author":"Sadarjoen Ari","year":"1994","journal-title":"Technical Report DUT-TWI-94-80"},{"key":"e_1_2_8_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/2945.506222"},{"key":"e_1_2_8_4_2","first-page":"527","article-title":"Tools for computing tangent curves and topological graphs for visualizing piecewise linearly varying vector fields over triangulated domains","author":"Nielson M. 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