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Moritz Geometry Editor


Data Planes


Three data planes-perpendicular to the X, Y, and Z axes-can be present in the 3D plot. These planes are filled with the data color of the mesh cells that they intersect. All three data planes are present in this Figure See 3D Mesh Tally. Two planes are used in this Figure See Grid Tally with 2 Data Planes where data cells are drawn as wire frame. This Figure See Cylindrical Mesh Tally shows a data plane perpendicular to the axis of a cylindrical mesh. The shrinking factor for the 3D mesh cells does not affect the data planes.

The data planes are positioned by selecting a Drag Data Plane item in the Data Plane submenu of the Graphics menu or one of the context menus and then clicking in a 2D plot and moving the position of the plane with the mouse. The 3D data plane is updated during the mouse motion. The submenus contain items for enabling or disabling the data planes, as appropriate. Menu items that don't make sense, such as enabling a plane that has not been defined, are inactive.

When multiple meshes with mesh tally data are present, the data planes show the cells of the current grid tally mesh. The current mesh is the one for which properties were last displayed in the Mesh Tally property page. When changing the visible mesh on that page, extant data planes will remain and may not be appropriate for the current mesh. These planes must be disabled or repositioned.

Data planes can be used with nonaligned meshes, but the position of the 2D cursor may not accurately reflect the 3D position of the data plane. For nonaligned cylindrical meshes, which data plane (X, Y, or Z) is the one that results in an axial plane is unpredictable (sometimes no plane will). Data planes parallel to the axis of an RZT mesh will not be correct when there are subdivisions in the theta direction.



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