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The visualization window to which new plots or operations will display or occur. |
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MeshTV can animate files which are members of a file family. An animation involves showing pictures one after another to make a "movie." One picture comes from each file. |
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The fundamental building block of a mesh. It defines the nodal coordinates of one contiguous section of a mesh, and is also known as a mesh block. |
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Command Line Interface. Pronounced one letter at a time. See Command Line Interface . |
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A method of interacting with MeshTV by issuing commands. You can find a list of commands which MeshTV understands in the MeshTV Command Line Interface Manual. Using a command line interface requires more typing, but is often quicker that an GUI for an experienced user. |
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See Mesh . |
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Generally, the absolute minimum and maximum of a variable. However, the user can set the data extents that a particular plot will view, in which case, the data extents are the minimum and maximum user-specified values of a variable that are considered for visualization. Different plots may do different things with values outside of these data limits. For example, one plot may decide not to draw values outside of the range. Others may treat them as values at the ends of the range. Unless the user explicitly sets the minimum and maximum, however, the data extents are the absolute minimum and maximum of the variable. |
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See Data extents . |
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The coloring of an graphical item based on its distance from the viewer, giving an impression of depth. In MeshTV, when depth cueing is enabled, items farther away are blended with the background color. |
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A grouping of files which adhere to the following naming convention: All files share the same root name and differ in appended numbers. For example, the files "rect0001.silo" and "rect0002.silo" comprise a family of files. MeshTV can animate families of files. |
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A method of interacting with MeshTV by using buttons, menus and lists. This minimizes the amount of typing users must perform to accomplish goals, but tends to be slower than a CLI would be for more experienced users. |
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In MeshTV's GUI, when an item (called a widget) like a button or label is unavailable for manipulation, its text will appear slightly fuzzy or "grayed out." |
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Graphical User Interface. Pronounced "Gooey." See Graphical User Interface . |
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A surface connecting points of constant value for a variable. |
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A curve, or x/y plot, of the values of a variable along a line or other curve. |
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A physical material, like hydrogen or glass, being modeled in a computer simulation. A material is comprised of one or more material species. |
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A single component of a material. A material can contain one or more material species. For example, the material Air contains the species Oxygen and the species Nitrogen. The portion of the material in a zone for a particular material species is measured by mass fraction, since the species are assumed to be distributed evenly throughout the material in the zone. |
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A zone which contains multiple materials. Also called a mixed material zone. |
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A mathematical point. The fundamental building block of mesh or zone. |
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An area at the bottom of MeshTV's Main window in the GUI. This area allows you to post windows for future access. |
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A "filter" that can be applied to the data. Operators manipulate the data so that various features can be seen. For example, one such operator might slice a 3D dataset so that 2D information can be seen. Another operator might reduce the dataset to allow for easier manipulation. |
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A graphical representation of data. Examples include graphs of variable values, materials, or the computational mesh. |
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A mesh consisting of set of locations, or points, in space. These nodes are not connected. |
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To place the items in a window into the Notepad in MeshTV's Main window. |
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A plot which maps a variable's values to a corresponding color from a color table. This allows users quickly grasp the range of numerical values of a given variable over a section of the data. |
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SGI's Red Green Blue format. A format for saving image data. |
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Quadrilateral mesh. A mesh which contains four nodes per zone in 2D and eight nodes per zone (four nodes per zone face) in 3D. These meshes are logically rectangularly connected. |
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A library developed at Lawrence Livermore National Laboratory to handle scientific database issues, such as cross-platform compatibility, mesh, material, and variable data structures, and multidimensional arrays. MeshTV can read and display information from SILO files. |
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Unstructured mesh. A general mesh representation composed of an arbitrary list of zones of arbitrary sizes and shapes. A quadmesh can be represented as a ucdmesh, but not the other way around, since quadmeshes have an implied rectangular connectivity, and ucdmeshes have no implied connectivity. |
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To move the items in a window in the Notepad in MeshTV's Main window back into their own window. |
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Data which are associated with a computational mesh. Variables usually represent values of some physics quantity, like pressure or density. Values are located either at the mesh nodes or as constants throughout the zones. |
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Computer software which allows users to turn numbers into pictures. Such a tool helps users identify trends and abnormalities in data sets. |
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The window where plots are displayed. MeshTV supports a maximum of 16 visualization windows. Also referred to as a Vis window. |
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At item in MeshTV's GUI. Widgets include buttons, text fields, menu items, and scrollable lists, for example. |
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An area or volume from which meshes are comprised. Zones are polygons or polyhedra with nodes as vertices. Zones are occupied by one or more materials. |