Dialog Box - called from: Input2 Menu
This dialog controls the appearance of the display crystal shape. The Crystal Forms for Display dialog in the Input1 menu controls the actual generation of the faces which make up this shape.
Display. Crystal means the edges which define the external boundary faces. Atoms means the atomic structure including bonds and polyhedra. If you are drawing a molecule or polymer, crystal edges are not normally shown, but you can nevertheless display a crystal shape if desired.
Edges Only/Faces Only/Both. In 3D Drawing modes the actual planes of the crystal faces can be shown, instead of or in addition to the edges between faces. Set the Opacity and color of the faces in the group at the bottom of the dialog.
Dash length and dash ratio. The dashes are used for back edges of crystals and in display of Crystal Axes and Unit Cell. Length or repeat distance is in inches/centimeters, and the length factor is the actual length of the solid part divided by the repeat distance. Note that when using Frames in output the dash length remains the same - it may be desirable to decrease the length for very small plots.
Back edges - those not visible if the crystal is opaque - may be specified as none (not shown at all), dashed or solid.
Lines/Cylinders. In 3D Drawing modes the edges may be shown as lines or cylinders of the specified width.
Colors, Patterns, Pen numbers. Front edges are those which are visible; back edges are not visible in an opaque crystal. Widths of lines are set in the Line Widths dialog in the Input2 Menu). See Input Colors/Patterns/Pens for general aspects of input.
For alternate ways of drawing unit cells, and problems sometimes encountered with crystal edges, see Drawing Crystal and Unit-Cell edges.