Declarations

function Mirror(Value, Max: Integer): Integer; overload;
function Mirror(Value, Min, Max: Integer): Integer; overload;

Overload Details

Overload 1

function Mirror(Value, Max: Integer): Integer; overload;

Mirrors an integer value in range [0..Max].

Parameter	Type	Description
Value	Integer	Integer value to mirror.
Max	Integer	Inclusive upper bound.

Type	Description
Integer	Mirrored integer coordinate in range [0..Max].

Overload 2

function Mirror(Value, Min, Max: Integer): Integer; overload;

Mirrors an integer value in range [Min..Max].

Parameter	Type	Description
Value	Integer	Integer value to mirror.
Min	Integer	Inclusive lower bound.
Max	Integer	Inclusive upper bound.

Type	Description
Integer	Mirrored integer coordinate in range [Min..Max].

Description

Mirror constrains Value to range [0..Max] (or [Min..Max]) using center-pixel mirror symmetry (with cycle length $2\times \text{Max}$).

For example, for Max = 3, the sequence of values generated across coordinate space is: 0, 1, 2, 3, 2, 1, 0, 1, 2, 3, 2, 1.

See also

• Reflect
• Clamp
• Wrap