In this paper,we present a transfer function-based approach to developing an interactive visualization algorithm for ocean mesoscale eddies.Spatiotemporal coherence and viewport coherence are achieved.Evenly spaced st...In this paper,we present a transfer function-based approach to developing an interactive visualization algorithm for ocean mesoscale eddies.Spatiotemporal coherence and viewport coherence are achieved.Evenly spaced streamlines are only integrated for visible portions of the datasets that maintain a relatively stable visual pattern resolution.The interactive transfer function is introduced to extract 2D and 3D eddy features,such as the Okubo-Weiss parameter,from background ocean currents,and a highly efficient GPU-based framework with an outputsensitive performance is utilized.Using the high-resolution 2D/3D ocean current datasets Maps of Sea Level Anomalies(MSLA)and Hybrid Coordinate Ocean Model(HYCOM),the feasibility and efficiency of our framework are demonstrated.展开更多
基金This research was jointly supported by the National Key R&D Program of China[grant number 2016 YFC1401008,2017YFA0603203 and 2016YFC1402608]the Qingdao National Laboratory for Marine Science and Technology under[grant number 2018ASKJ01 and 2015ASTP-OS15]the Fundamental Research Funds for the Central Univer-sities[grant number 201762005].
文摘In this paper,we present a transfer function-based approach to developing an interactive visualization algorithm for ocean mesoscale eddies.Spatiotemporal coherence and viewport coherence are achieved.Evenly spaced streamlines are only integrated for visible portions of the datasets that maintain a relatively stable visual pattern resolution.The interactive transfer function is introduced to extract 2D and 3D eddy features,such as the Okubo-Weiss parameter,from background ocean currents,and a highly efficient GPU-based framework with an outputsensitive performance is utilized.Using the high-resolution 2D/3D ocean current datasets Maps of Sea Level Anomalies(MSLA)and Hybrid Coordinate Ocean Model(HYCOM),the feasibility and efficiency of our framework are demonstrated.
