Im trying to make Thumbnail pics -- any suggestions?

[wiz_pendases]

Im trying to make Thumbnail pics -- any suggestions? (dont know wher
to start)

 

[Piyush Ranjan]

Note: parts of this message were removed by the gateway to make it a legal Usenet post.

Use rmagick which is a sort of a ruby binding on ImageMagick and
grpahicsmagick

 

[Eric Tucker]

I am using rmagick. However, I hear good things about imagescience if your needs featurewise are more modest.
Sent wirelessly via BlackBerry from T-Mobile.

-----Original Message-----
From: "Piyush Ranjan" <[email protected]>

Date: Thu, 29 Nov 2007 02:45:04
To:[email protected] (ruby-talk ML)
Subject: Re: Im trying to make Thumbnail pics -- any suggestions?


Use rmagick which is a sort of a ruby binding on ImageMagick and
grpahicsmagick

 

[Aria Stewart]

Use rmagick which is a sort of a ruby binding on ImageMagick and
grpahicsmagick

Or ImageScience or the epeg library

 

[Tom Reilly]

Im trying to make Thumbnail pics -- any suggestions? (dont know wher
to start)

# Make Thumb Nails
# This works fine to make thumbnails for my web site
# lots of luck
#Tom Reilly

require 'rmagick'
include Magick

def rsz(hgt,wdt,msze)
if hgt > wdt
r = msze.to_f / hgt.to_f
return [ msze, (wdt.to_f * r).to_i]
else
r = msze.to_f / wdt.to_f
return [(hgt.to_f * r).to_i, msze]
end
end


tnDir = ".\\"
jpgArray = Array.new
dir = Dir.new(tnDir)
dir.each do |d|
jpgArray.push(d) if d =~ /jpg/
end



pix = ImageList.new
jpgArray.each {|x| pix.read(x) if x .downcase =~ /jpg/}

pix.each do |x|

rows = x.rows
columns = x.columns
factor1 = 200
factor2 = 450
a = rsz(columns,rows,factor1)

x.resize!(a[0],a[1])
#img.resize!(cols,rows)
# img2 = x.frame
x.write(".\\stamp\\#{"t" + x.filename}")
end

 

[Ryan Davis]

# Make Thumb Nails
# This works fine to make thumbnails for my web site
# lots of luck
#Tom Reilly

require 'rmagick'
include Magick

def rsz(hgt,wdt,msze)
if hgt > wdt
r = msze.to_f / hgt.to_f
return [ msze, (wdt.to_f * r).to_i]
else
r = msze.to_f / wdt.to_f
return [(hgt.to_f * r).to_i, msze]
end
end


tnDir = ".\\"
jpgArray = Array.new
dir = Dir.new(tnDir)
dir.each do |d|
jpgArray.push(d) if d =~ /jpg/
end



pix = ImageList.new
jpgArray.each {|x| pix.read(x) if x .downcase =~ /jpg/}

pix.each do |x|
rows = x.rows
columns = x.columns
factor1 = 200
factor2 = 450
a = rsz(columns,rows,factor1)
x.resize!(a[0],a[1])
#img.resize!(cols,rows)
# img2 = x.frame
x.write(".\\stamp\\#{"t" + x.filename}")
end

Blech!

This is exactly why I wrote image_science... well, that and installing
ImageMagick/rmagick was always a PITA.

require 'rubygems'
require 'image_science'

Dir["*.jpg"].each do |file|
ImageScience.with_image(file) do |img|
img.thumbnail(200) do |thumb|
thumb.save "#{file.sub(/.jpg$/, '')}_thumb.png"
end
end
end

 

[Thufir]

require 'rubygems'
require 'image_science'

Dir["*.jpg"].each do |file|
ImageScience.with_image(file) do |img|
img.thumbnail(200) do |thumb|
thumb.save "#{file.sub(/.jpg$/, '')}_thumb.png"
end
end
end

Very cool


I'm ok with the ruby, but how would you put that *into* a rails project
so that the above code is run when the new images are imported to the db?



thanks,

Thufir

 

[Andrew Stewart]

require 'rubygems'
require 'image_science'

Dir["*.jpg"].each do |file|
ImageScience.with_image(file) do |img|
img.thumbnail(200) do |thumb|
thumb.save "#{file.sub(/.jpg$/, '')}_thumb.png"
end
end
end

Very cool


I'm ok with the ruby, but how would you put that *into* a rails
project
so that the above code is run when the new images are imported to
the db?

Have a look at the attachment_fu plugin:

http://svn.techno-weenie.net/projects/plugins/attachment_fu/

Regards,
Andy Stewart

 

[John Joyce]

Very cool


I'm ok with the ruby, but how would you put that *into* a rails
project
so that the above code is run when the new images are imported to
the db?



thanks,

Thufir

Put things like that into the Model file.

 

[Piyush Ranjan]

Note: parts of this message were removed by the gateway to make it a legal Usenet post.

you can also use filecolumn for rails file upload and thumbnailing needs.