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Diffstat (limited to 'ipl/gprogs/striper.icn')
| -rw-r--r-- | ipl/gprogs/striper.icn | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/ipl/gprogs/striper.icn b/ipl/gprogs/striper.icn new file mode 100644 index 0000000..5cf4f07 --- /dev/null +++ b/ipl/gprogs/striper.icn @@ -0,0 +1,87 @@ +############################################################################ +# +# File: striper.icn +# +# Subject: Program to make striped pattern from image edge +# +# Author: Ralph E. Griswold +# +# Date: March 14, 1995 +# +############################################################################ +# +# This file is in the public domain. +# +############################################################################ +# +# This program takes the left column or top row of pixels of an image +# and creates a 1 x n or n x 1 image file from it. The result, when +# tiled, is a striped pattern. +# +# This program is useful for creating regular striped patterns from +# scans. +# +# The following options are supported: +# +# -d s stripe direction: +# "h" horizontal (the default) +# "v" vertical +# "b" both horizontal and vertical +# -p s prefix for GIF file names, default "stripes_" +# -w i width of swatch, default 1 +# -x i x offset, default 0 +# -y i y offset, default 0 +# +############################################################################ +# +# Requires: Version 9 graphics +# +############################################################################ +# +# Links: options, wopen +# +############################################################################ + +link options +link wopen + +procedure main(args) + local file, hidden, count, prefix, opts, w, h, v, x, y + + opts := options(args, "d:w+p:x+y+") + prefix := \opts["p"] | "stripes_" + w := \opts["w"] | 1 + x := \opts["x"] | 0 + y := \opts["y"] | 0 + case opts["d"] of { + "h": h := 1 + "v": v := 1 + "b": { + h := 1 + v := 1 + } + &null: h := 1 + default: stop("Invalid direcTion specification") + } + + count := 0 + + every file := !args do { + hidden := WOpen("canvas=hidden", "image=" || file) | { + write(&errout, "*** cannot open ", file) + next + } + if \h then { + WriteImage(hidden, prefix || right(count +:= 1, 3, "0") || ".gif", + x, 0, w, WAttrib(hidden, "height")) | + write(&errout, "*** cannot write image file") + } + if \v then { + WriteImage(hidden, prefix || right(count +:= 1, 3, "0") || ".gif", + 0, y, WAttrib(hidden, "width"), w) | + write(&errout, "*** cannot write image file") + } + WClose(hidden) + } + +end |