Change here the properties of a crystallographic or atomic plane (or list of
planes, previously selected with Plane->Select, when
Global is pressed).
Parameters for empty entries or
Local choices remain unchanged.
To change the plane name write the new name in the Plane entry, followed
by the plane number (GAMGI only needs the number to identify the plane).
Reference
GAMGI can handle crystallographic planes, related with a cell containing
the relevant crystallographic information, and atomic planes, defined by
three non-colinear atoms.
To create crystallographic planes, set
Reference to
Cell.
GAMGI automatically shows a
Cell entry,
h,
k,
l
entries to indicate the plane indices, plus a
Vectors menu, to select
the cell vectors to use,
Conventional or
Primitive. For the sake
of simplicity, GAMGI does not accept 4-indice notation for planes or directions
in hexagonal cells.
Pressing the mouse over a cell in the current layer, the cell identification
is automatically written in the
Cell entry. When a valid cell is found
and its
Type is
Projection, the default
Polygon page
is automatically replaced by a
Projection page.
When
Reference is set to
Atoms, GAMGI automatically shows
three
Atom entries. Pressing the mouse sucessively over three
non-colinear atoms in the current layer, the three entries become occupied
and the plane defined. After pressing
Ok, an error is shown if the
atoms are disposed linearly.