PADIT Function

PADIT Function

Pads an array with variable thickness.

Usage

c = PADIT( a[, b] )

Input Parameters

a — An n-dimensional array.

b — (optional) A scalar with which to pad the array; if b is omitted then each pad layer is a copy of its underlying layer.

Returned Value

c — The padded version of parameter a.

Keywords

t — An n-by-2 array of integers: t(m,0) and t(m,1) are bottom and top pad thicknesses for dimension m of a. Default: pad each side with one layer.

Example

a = INDGEN(2, 3)

PM, a

; PV-WAVE prints:

; 0       2       4

; 1       3       5

PM, PADIT(a)

; PV-WAVE prints:

; 0       0       2       4       4

; 0       0       2       4       4

; 1       1       3       5       5

; 1       1       3       5       5

PM, PADIT(a, 6)

; PV-WAVE prints:

; 6       6       6       6       6

; 6       0       2       4       6

; 6       1       3       5       6

; 6       6       6       6       6