CODEWITHSUNDEEP
bashcommand-line-interface
Brad Parks
Brad Parks

Reputation: 72111

Dump the letters of the alphabet to a series of Pngs from the command line?

I'd like to create a bunch of PNGs, one for each letter of the alphabet.

How can I do this from the command line on mac/linux?

Upvotes: 0

Views: 855

Answers (2)

Brad Parks
Brad Parks

Reputation: 72111

The following script will dump the letters of the alphabet to a series of PNGs. It requires imageMagick and GhostScript be installed on your system for the convert utility.

e.g.

# creates the letters A.png -> Z.png in the current folder
dump_alphabet_as_pngs.sh   

# creates the files test_A.png -> test_Z.png in the current folder, 
# with a red font named "AvantGarde-Book"
dump_alphabet_as_pngs.sh test_ red AvantGarde-Book

dump_alphabet_as_pngs.sh

# Create image for template
TEMPLATE=/tmp/_template.png
convert -size 80x80 xc:white $TEMPLATE

# Setup defaults
PREFIX=${1:-''}
COLOR=${2:-'red'}
FONT=${3:-'helvetica'}
SIZE=${4:-75}

# Note that the following will show you fonts you can use: 'convert -list font |grep Font:'

function createImage()
{
  convert -font $FONT -fill $COLOR -pointsize $SIZE -draw "text 15,70 '$1'" $TEMPLATE $PREFIX$1.png
}

# Generate images
for x in {A..Z}
do
  createImage $x
done

rm -f $TEMPLATE

enter image description here

Upvotes: 1

Diego Torres Milano
Diego Torres Milano

Reputation: 69338

You can create an image of the letter using Inkscape and setting whatever style and color you want. Let's say you create one with the letter A and save it as a.svg Then locate where the A is, for example

style="font-size:72px;fill:#8b0000">A</tspan></text>

and replace it in a loop

for l in {A..Z}; do sed 's@\(#8b0000">\)\(A\)\(</tspan></text>\)@\1'$l'\3@' a.svg | convert - $l.png; done

and you'll have all your letters

enter image description here

Upvotes: 2

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