The 2D windows show cuts through the geometry at constant X, Y, and Z. The value of the constant, or depth, is changed by selecting a value with the mouse in an orthogonal cut. The window title gives depth value. The axis can be positioned at the origin [(S, T) = (0, 0), where S and T are two of X, Y, and Z] or at the depths of the orthogonal cuts. Lines show the intersections of surfaces with the cut.
Three nonexclusive options show the positions of cells. Filling fills the interior of a cell. Sparse shading, where not every pixel is colored, leaves an underlying bitmap image visible. Bounding draws the segments of surfaces that border the cell. Outlining uses the same ray tracing algorithm as shading, but only colors pixels at the cell edge. Surfaces and cells can be numbered. The cell labels can be cell number, material, or importance. The Surfaces and Cells chapters above give more information.
All graphics elements can be turned on or off and customized in various ways. The fonts used for the cell and surface numbers are separate. Any available font and font color can be used.
Changing the size of a 2D window forces a redraw of the plot. When dragging the size with the mouse, multiple redraws occur. To prevent redraws of complicated plots from slowing down the operation, the Control key can be held down during resizing to prevent redrawing. Once the desired size is obtained, a redraw must be manually requested with the redraw toolbar buttonor the Redraw item in the 2D context menu.
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