The Experts below are selected from a list of 6657726 Experts worldwide ranked by ideXlab platform
Pat Hanrahan - One of the best experts on this subject based on the ideXlab platform.
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Arc Length-Based Aspect Ratio Selection
IEEE transactions on visualization and computer graphics, 2011Co-Authors: Justin Talbot, John Gerth, Pat HanrahanAbstract:The aspect ratio of a plot has a dramatic impact on our ability to perceive trends and patterns in the data. Previous approaches for automatically selecting the aspect ratio have been based on adjusting the orientations or angles of the line segments in the plot. In contrast, we recommend a simple, effective method for selecting the aspect ratio: minimize the arc length of the data curve while keeping the area of the plot constant. The approach is parameterization invariant, robust to a wide range of inputs, preserves visual symmetries in the data, and is a compromise between previously proposed techniques. Further, we demonstrate that it can be effectively used to select the aspect ratio of contour plots. We believe arc length should become the default aspect ratio selection method.
Justin Talbot - One of the best experts on this subject based on the ideXlab platform.
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Arc Length-Based Aspect Ratio Selection
IEEE transactions on visualization and computer graphics, 2011Co-Authors: Justin Talbot, John Gerth, Pat HanrahanAbstract:The aspect ratio of a plot has a dramatic impact on our ability to perceive trends and patterns in the data. Previous approaches for automatically selecting the aspect ratio have been based on adjusting the orientations or angles of the line segments in the plot. In contrast, we recommend a simple, effective method for selecting the aspect ratio: minimize the arc length of the data curve while keeping the area of the plot constant. The approach is parameterization invariant, robust to a wide range of inputs, preserves visual symmetries in the data, and is a compromise between previously proposed techniques. Further, we demonstrate that it can be effectively used to select the aspect ratio of contour plots. We believe arc length should become the default aspect ratio selection method.
R. H. M. Huijsmans - One of the best experts on this subject based on the ideXlab platform.
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Low-aspect ratio appendages for wind-assisted ships
Journal of Marine Science and Technology, 2021Co-Authors: N. J. Kolk, J A Keuning, I. Akkerman, R. H. M. HuijsmansAbstract:Wind propulsion for commercial ships has been identified as a key component in the energy transition for the maritime industry. The sailing hybrid ship will operate with leeway (drift) angles to produce a lateral force known as sideforce, for steady operation under sail. In this paper, experimental results for the sailing performance of ships fitted with bilge keel appendages are presented. Systematic variations in appendage height, length, and position were tested, including several special cases (multiple bilge keels). The appendage typology is shown to mitigate the strong ‘destabilizing’ yaw moment that is characteristic of wind-assisted commercial vessels and to promote the non-linear sideforce component. The working principal for bilge keels—promotion of flow separation—can be employed to specify the separation location for components of the vessel vortex wake to improve the sailing performance of the ship.
F Schlimbach - One of the best experts on this subject based on the ideXlab platform.
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multilevel mesh partitioning for optimising aspect ratio
International Conference on Parallel Processing, 1999Co-Authors: Chris Walshaw, Mark Cross, Ralf Diekmann, F SchlimbachAbstract:mesh partitioning problem. They usually combine a graph contraction algorithm together with a local optimisation method which refines the partition at each graph level To date these algorithms have been used almost exclusively to minimise the cut-edge weight, however it has been shown that for certain classes of solution algorithm, the convergence of the solver is strongly influenced by the subdomain aspect ratio. In this paper therefore, we modify the multilevel algorithms in order to optimise a cost function based on aspect ratio. Several variants of the algorithms are tested and shown to provide excellent results. -
aspect radio for mesh partitioning
European Conference on Parallel Processing, 1998Co-Authors: Ralf Diekmann, Robert Preis, F Schlimbach, Chris WalshawAbstract:This paper deals with the measure of Aspect Ratio for mesh partitioning and gives hints why, for certain solvers, the Aspect Ratio of partitions plays an important role. We define and rate different kinds of Aspect Ratio, present a new center-based partitioning method which optimizes this measure implicitly and rate several existing partitioning methods and tools under the criterion of Aspect Ratio.
John Gerth - One of the best experts on this subject based on the ideXlab platform.
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Arc Length-Based Aspect Ratio Selection
IEEE transactions on visualization and computer graphics, 2011Co-Authors: Justin Talbot, John Gerth, Pat HanrahanAbstract:The aspect ratio of a plot has a dramatic impact on our ability to perceive trends and patterns in the data. Previous approaches for automatically selecting the aspect ratio have been based on adjusting the orientations or angles of the line segments in the plot. In contrast, we recommend a simple, effective method for selecting the aspect ratio: minimize the arc length of the data curve while keeping the area of the plot constant. The approach is parameterization invariant, robust to a wide range of inputs, preserves visual symmetries in the data, and is a compromise between previously proposed techniques. Further, we demonstrate that it can be effectively used to select the aspect ratio of contour plots. We believe arc length should become the default aspect ratio selection method.
