Difference between revisions of "Ruby"
From Wasya Wiki
(Created page with " == Install ruby on ubuntu 20 == From: https://www.digitalocean.com/community/tutorials/how-to-install-ruby-on-rails-with-rbenv-on-ubuntu-20-04 sudo apt update sudo apt...") |
|||
| Line 13: | Line 13: | ||
type rbenv | type rbenv | ||
| + | |||
| + | == How to render text on image with RMagick and Word wrap? == | ||
| + | From: https://stackoverflow.com/questions/11788216/how-to-render-text-on-image-with-rmagick-and-word-wrap | ||
| + | |||
| + | <pre> | ||
| + | phrase = "my super long text that needs to be auto line breaked and cropped" | ||
| + | background = Magick::Image.read('my_bg_img.jpg').first | ||
| + | image = Magick::Image.read("caption:#{phrase}") do | ||
| + | self.size = '800x600' #Text box size | ||
| + | self.background_color = 'none' #transparent | ||
| + | self.pointsize = 22 # font size | ||
| + | self.font = 'Helvetica' #font family | ||
| + | self.fill = 'gray' #font color | ||
| + | self.gravity = Magick::CenterGravity #Text orientation | ||
| + | end.first | ||
| + | background.composite!(image, Magick::NorthEastGravity, 20, 40, Magick::OverCompositeOp) | ||
| + | background.format = "jpeg" | ||
| + | return background.to_blob | ||
| + | </pre> | ||
Revision as of 03:25, 12 March 2024
Install ruby on ubuntu 20
sudo apt update sudo apt install git curl libssl-dev libreadline-dev zlib1g-dev autoconf bison build-essential libyaml-dev libreadline-dev libncurses5-dev libffi-dev libgdbm-dev curl -fsSL https://github.com/rbenv/rbenv-installer/raw/HEAD/bin/rbenv-installer | bash echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc echo 'eval "$(rbenv init -)"' >> ~/.bashrc
Test:
type rbenv
How to render text on image with RMagick and Word wrap?
From: https://stackoverflow.com/questions/11788216/how-to-render-text-on-image-with-rmagick-and-word-wrap
phrase = "my super long text that needs to be auto line breaked and cropped"
background = Magick::Image.read('my_bg_img.jpg').first
image = Magick::Image.read("caption:#{phrase}") do
self.size = '800x600' #Text box size
self.background_color = 'none' #transparent
self.pointsize = 22 # font size
self.font = 'Helvetica' #font family
self.fill = 'gray' #font color
self.gravity = Magick::CenterGravity #Text orientation
end.first
background.composite!(image, Magick::NorthEastGravity, 20, 40, Magick::OverCompositeOp)
background.format = "jpeg"
return background.to_blob
