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#!/bin/bash
# $Id: GMT_RGBchart.sh 15178 2015-11-06 10:45:03Z fwobbe $
#
# Plots a page of all 555 unique named colors
# Usage: GMT_RGBchart.sh <size>
# where <size> is the page size. Use either: ledger, a4, or letter
# This produces the file GMT_RGBchart_<size>.ps
. gmt_shell_functions.sh
gmt_init_tmpdir
SIZE=$1
COL=16
ROW=35
if [ "X"$SIZE"" = "Xletter" ] ; then
WIDTH=10.5
HEIGHT=8.0
ORIENT=landscape
elif [ "X"$SIZE"" = "Xa4" ] ; then
WIDTH=11.2
HEIGHT=7.8
else
SIZE=tabloid
WIDTH=16.5
HEIGHT=10.5
fi
ps=GMT_RGBchart_$SIZE.ps
allinfo=$GMT_TMPDIR/allinfo.tmp
cpt=$GMT_TMPDIR/lookup.cpt
rects=$GMT_TMPDIR/rects.tmp
whitetags=$GMT_TMPDIR/whitetags.tmp
blacktags=$GMT_TMPDIR/blacktags.tmp
labels=$GMT_TMPDIR/labels.tmp
gmt gmtset PS_MEDIA $SIZE PS_PAGE_ORIENTATION landscape
rectheight=0.56
W=`gmt math -Q $WIDTH $COL DIV 0.95 MUL =`
H=`gmt math -Q $HEIGHT $ROW DIV $rectheight MUL =`
textheight=`gmt math -Q 1 $rectheight SUB =`
fontsize=`gmt math -Q $HEIGHT $ROW DIV $rectheight MUL 0.6 MUL 72 MUL =`
fontsizeL=`gmt math -Q $HEIGHT $ROW DIV $textheight MUL 0.7 MUL 72 MUL =`
# Produce $allinfo from color and name files
egrep -v "^#|grey" "${GMT_SOURCE_DIR}"/src/Colors.txt | $AWK -v COL=$COL -v ROW=$ROW \
'BEGIN{col=0;row=0}{if(col==0&&row<2){col++};if ($1 == $2 && $2 == $3) {printf "%s", $1} else {printf "%s/%s/%s", $1, $2,
$3};printf " %g %s %g %g\n",0.299*$1+0.587*$2+0.114*$3,$4,col,row;col++;if(col==COL){col=0;row++}}' > $allinfo
# Produce temp files from $allinfo
$AWK '{printf "%g %s %g %s\n", NR-0.5, $1, NR+0.5, $1}' $allinfo > $cpt
$AWK -v h=$rectheight -v W=$W -v H=$H '{printf "%g %g %g %g %g\n",$4+0.5,$5+1-0.5*h,NR,W,H}' $allinfo > $rects
$AWK -v h=$rectheight -v fs=$fontsize '{if ($2 <= 127) printf "%g %g %gp,1 %s\n",$4+0.5,$5+1-0.5*h,fs,$1}' $allinfo > $whitetags
$AWK -v h=$rectheight -v fs=$fontsize '{if ($2 > 127) printf "%g %g %gp,1 %s\n",$4+0.5,$5+1-0.5*h,fs,$1}' $allinfo > $blacktags
$AWK -v h=$textheight -v fs=$fontsizeL '{printf "%g %g %gp,1 @#%s@#\n",$4+0.5,$5+0.6*h,fs,$3}' $allinfo > $labels
# Plot all tiles and texts
gmt psxy -R0/$COL/0/$ROW -JX$WIDTH/-$HEIGHT -X0.25i -Y0.25i -B0 -C$cpt -Sri -W $rects -K > $ps
gmt pstext -R -J -O -K $labels -F+f --FONT=black >> $ps
gmt pstext -R -J -O -K $blacktags -F+f --FONT=black >> $ps
gmt pstext -R -J -O -K $whitetags -F+f --FONT=white >> $ps
# Put logo in top left corner
gmt logo -R -J -O -K -Dg0.5/1+jMC+w$W >> $ps
height=`gmt math -Q $HEIGHT $ROW DIV =`
gmt pslegend -O -R -J -DjBR+w$WIDTH >> $ps <<END
L $fontsizeL 1 R Values are R/G/B. Names are case-insensitive.
L $fontsizeL 1 R Optionally, use GREY instead of GRAY.
END
gmt_remove_tmpdir
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