bash/imagemagick 'sketch'

A challenge from Mary last week, to come up with a work of art to portray the 124 days that we'd been in lock-down.

And the code thereto:

#!/bin/bash

declare -a ones=("" One Two Three Four Five Six Seven Eight Nine)

declare -a tens=("" Teen Twenty Thirty Forty Fifty Sixty Seventy Eighty Ninety)

declare text

function doOnes {

    text=${ones[$1]}

}

function doTens {

    case $1 in

        1)

            case $text in

                "")      text=Ten ;;

                "One")   text=Eleven ;;

                "Two")   text=Twelve ;;

                "Three") text=Thirteen ;;

                "Five")  text=Fifteen ;;

                *)       text=$text"teen" ;;

            esac

            ;;

        *)

            text=${tens[$1]}" "$text

            ;;

    esac

    

}

function doHundreds {

    text=${ones[$1]}" Hundred "$text

}

function makeText {

    reversed=$( printf $1 | rev )

    for x in $( seq 0 $((${#reversed} - 1)) ); do

        digit=$(( ${reversed:${x}:1} ));

        case $x in

            0) doOnes $digit ;;

            1) doTens $digit $text ;;

            2) doHundreds $digit $text ;;

        esac

    done

}

        

cmd="convert -size 1500x1020 xc:ivory"

for i in $( seq 1 124 ); do

    makeText $i

    pointsize=" -pointsize "$((200-$i))

    color=" -fill rgb\("$((2*$i))",25,"$((255-$(($i*2)) ))",0.001\)"

    stroke=" -stroke black"

    x=$(( 10 + $(($i*3)) ))

    y=$(( 140 + $(($i*7)) ))

    draw=" -draw \"text "$x","$y" '"$text"'\""

    cmd=$cmd$pointsize$color$stroke$draw

done

cmd=$cmd" xxx.gif"

eval $cmd

display xxx.gif&