08-15-2012
Swapping the columns of a text file for a subset of rows
Hi,
I'd like to swap the columns 1 and 2 of a space-delimited text file but only for the first 1000 rows. How do I go about doing that? Thanks!
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'A1','A2'
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'C1','C2'
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pfspad(1) General Commands Manual pfspad(1)
NAME
pfspad - Add borders to a frame in PFS stream
SYNOPSIS
pfspad [--left <columns>] [--right <columns>] [--top <rows>] [--bottom <rows>] [--width <new_width>] [--height <new_height>] [--R <val>]
[--G <val>] [--B <val>] [--Y <val>] [--help]
DESCRIPTION
Add borders to each frame in PFS stream. User specifies size of left, right, top and bottom border or size of an output image. Color of
borders can be specified as well.
OPTIONS
--left <columns>, -l <columns>
Width in pixels of the left border.
--right <columns>, -r <columns>
Width in pixels of the right border.
--top <rows>, -t <rows>
Height in pixels of the top border.
--bottom <rows>, -b <rows>
Height in pixels of the bottom border.
--width <new_width>, -W <new_width>
Width of an output image. Note that --width can be mixed with either --left or --right option.
--height <new_height>, -H <new_height>
Height of an output image. Note that --height can be mixed with either --top or --bottom option.
--R <val>, -R <val>, --G <val>, -G <val>, --B <val>, -B <val>
Color of borders in RGB mode. Default color is black, and if some of the components is not specified, its value is set to 0.0.
--Y <val>, -Y <val>
Color of borders in luminance mode.
--help, -h
Print a list of commandline options.
EXAMPLES
pfsin image.hdr | pfspad --left 50 --bottom 20 | pfsout out.hdr
Add 50 columns to the left and 20 rows to the bottom side of image.hdr. Color of borders is default black.
pfsin image.hdr | pfspad --top 20 --height 500 --width 400 --R 1.0 | pfsout out.hdr
Add 20 rows to the top side of image.hdr and create output image out.hdr 500 pixels in height and 400 pixels in width. Color of bor-
ders is set to red.
SEE ALSO
pfsin(1) pfsout(1)
BUGS
Please report bugs and comments to Dorota Zdrojewska <dzdrojewska@wi.ps.pl>.
pfspad(1)