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International
Tables for Crystallography Volume G Definition and exchange of crystallographic data Edited by J. R. Hester and B. McMahon © International Union of Crystallography 2026 |
International Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060001011 Chapter 4.2 Core dictionary (coreCIF) |
Core dictionary version 3.3.0
_function.Closest
Name:_function.Closest
Definition:
The function
d = Closest( v, w )
returns the cell translation vector required to obtain the
closest cell-translated occurrence of the vector V to the vector
W.
Type: Real
Values appear in Matrix context.
Dimension: [3]
Units: none
Evaluation method:
Function Closest( v :[Matrix, Real], # coord vector to be cell translated
w :[Matrix, Real]) { # target vector
d = v - w
Closest = Int( Mod( 99.5 + d, 1.0 ) - d )
}
Category:
function