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#!/usr/bin/env bash
#
# Plots a page of all 663 unique named colors
COL=16
ROW=35
WIDTH=16.5
HEIGHT=10.5
allinfo=allinfo.tmp
cpt=lookup.cpt
rects=rects.tmp
whitetags=whitetags.tmp
blacktags=blacktags.tmp
labels=labels.tmp
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
paste ${GMT_SOURCE_DIR}/src/gmt_color_rgb.h ${GMT_SOURCE_DIR}/src/gmt_colornames.h | tr '{,}"\r' ' ' > Colors.txt
egrep -v "^#|grey" 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 > $labels
gmt begin GMT_RGBchart
gmt set PS_MEDIA tabloid PS_PAGE_ORIENTATION landscape
# Plot all tiles and texts
gmt plot -R0/$COL/0/$ROW -JX$WIDTH/-$HEIGHT -X0.25i -Y0.25i -B0 -C$cpt -Sri -W $rects
gmt text $labels -F+f --FONT=black
gmt text $blacktags -F+f --FONT=black
gmt text $whitetags -F+f --FONT=white
# Put logo in top left corner
gmt logo -Dg0.5/1+jMC+w$W
height=$(gmt math -Q $HEIGHT $ROW DIV =)
gmt legend -DjBR+w$WIDTH <<END
L ${fontsizeL}p,Helvetica-Bold R Values are R/G/B. Names are case-insensitive.
L ${fontsizeL}p,Helvetica-Bold R Optionally, use GREY instead of GRAY.
END
gmt end show
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