png version 1.1.0 has been released!

PNG is an almost-pure-ruby PNG library. It lets you write a PNG without any C libraries.

FEATURES

• Very simple interface.
• Outputs simple PNG files with ease.
• Basic PNG reader as well (someday it might do compositing and the like!).
• Almost pure ruby, does require a compiler.

SYNOPSYS

require 'png'

canvas = PNG::Canvas.new 200, 200

# Set a point to a color
canvas[100, 100] = PNG::Color::Black

# draw an anti-aliased line
canvas.line 50, 50, 100, 50, PNG::Color::Blue

png = PNG.new canvas
png.save 'blah.png'

Changes:

1.1.0 / 2007-03-26

• 4 major enhancements:
  • Fixed and incorporated Dominik Barathon's optimizations.
  • Wrote inline methods for pngcrc and pngjoin. Now about 15x faster overall.
  • Basic PNG loading.
  • Reoriented x/y origin to bottom left. This will break things!
• 3 minor enhancements:
  • Awesome ascii art patches from Tom Werner: Canvas#inpsect, Canvas#tos, Color#toascii.
  • Switched to Hoe.
  • PNG.pie_chart from png/pie.
• 1 bug fix:
  • Fixed bug in PNG::Canvas#each.