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Lattice Display Styles
An optional lattice grid shows the lattice elements in the 2D windows. The grid is visible in the Figure at the left. Whether to show the grid and its properties, such as the line width, are set on the 2D Lattice Style property page. Each element can be labeled with the number of the filling universe, the lattice element index, or nothing. The grid and labels become crowded and of limited usefulness when the 2D lattice cells are small at low magnifications. The property page contains settings to not draw the grid and labels when the lattice cell is smaller than a threshold number of pixels. The grid and labels use separate thresholds.
Options on the 3D Lattice Style property page enable the lattice unit cell, usually in wire frame, to be shown at the (0, 0, 0) lattice position or repeated at all element positions. These global settings can be overridden for individual lattices in the Cell Lattice property page. In the 3D views above, the unit cell is repeated. These figures also show the container cell in wireframe; its color is orange in the left 3D view. The unit cell may be visible, regardless of the Show Unit Cellsetting, if the lattice cell carries the Visible in 3D style; that box should be unchecked on the Cell Style property page.
The Resolution factor N on the 3D Lattice Style Property page3D Lattice Style property page reduces the number of lattice elements drawn by skipping N - 1 elements in each direction. An element that is not skipped may not be drawn for others reasons, such as the cells in its universe being invisible.
Separate resolution factors can be set in the I, J, and K lattice directions for a specific lattice on the Cell Lattice property page. There one can also restrict the range of lattice elements displayed in 3D in each direction; the default setting is to display all visible elements. The element display limits can be positioned with the mouse in a 2D window. The Figure above shows a lattice with a resolution > 1 in the vertical direction and only half of the elements shown in the lateral direction. The resolutions and display limits do not affect the 2D plots.
When the 3D display limits are less than the lattice extents in 2 or 3 directions, the extents can be applied in an and or or mode. In the and mode, and element must be between each of the display limits to be shown. In the or mode, the element is shown if it is between any of the limits that are smaller than the lattice extents.
 White Rock Science http://www.whiterockscience.com/wrs.html 505 672 1105 |
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