Just curious if anyone has had any luck installing ImageMagick-6.7.4-Q16
and rmagick-2.13.x. I have been trying to follow a few posts out here, but
no luck. I can obviously get ImageMagick in stalled, but when I try to
install the gem rmagick(gem install rmagick) It's like it's trying to build
the gem.
I have several ruby applications(back end) that use a XML file to get the
offsets in the binary file, then extract that data, and build a image.
Files have to be converted to tiff and jpg, and other operations like image
resizing, etc.. I am about to play around with Dragonfly so I was curious
how people liked it.
sorry.. I'm on Ruby 1.9.2 and Rubygems that comes in that bundle, I think
that's 1.7.2
···
On Tue, Jan 10, 2012 at 7:55 AM, Daniel Stephens <danny.a.stephens@gmail.com > wrote:
Hey everyone,
Just curious if anyone has had any luck installing ImageMagick-6.7.4-Q16
and rmagick-2.13.x. I have been trying to follow a few posts out here, but
no luck. I can obviously get ImageMagick in stalled, but when I try to
install the gem rmagick(gem install rmagick) It's like it's trying to build
the gem.
I have several ruby applications(back end) that use a XML file to get the
offsets in the binary file, then extract that data, and build a image.
Files have to be converted to tiff and jpg, and other operations like image
resizing, etc.. I am about to play around with Dragonfly so I was curious
how people liked it.
On Tue, Jan 10, 2012 at 2:55 PM, Daniel Stephens <danny.a.stephens@gmail.com > wrote:
Hey everyone,
Just curious if anyone has had any luck installing ImageMagick-6.7.4-Q16
and rmagick-2.13.x. I have been trying to follow a few posts out here, but
no luck. I can obviously get ImageMagick in stalled, but when I try to
install the gem rmagick(gem install rmagick) It's like it's trying to build
the gem.
**
Yes, it is trying to build "native extensions".
Assuming you saw this error:
<quote>
~/data/projects/temp/rmagick$ bundle install
Fetching source index for http://rubygems.org/
Installing rmagick (2.13.1) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native
extension.
/home/peterv/.rvm/rubies/ruby-1.9.3-p0/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
extconf.rb:128: Use RbConfig instead of obsolete and deprecated Config.
checking for gcc... yes
checking for Magick-config... no
Can't install RMagick 2.13.1. Can't find Magick-config in
/home/peterv/.rvm/gems/ruby-1.9.3-p0@rmagick
/bin:/home/peterv/.rvm/gems/ruby-1.9.3-p0@global
/bin:/home/peterv/.rvm/rubies/ruby-1.9.3-p0/bin:/home/peterv/.rvm/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Gem files will remain installed in
/home/peterv/.rvm/gems/ruby-1.9.3-p0@rmagick/gems/rmagick-2.13.1 for
inspection.
Results logged to /home/peterv/.rvm/gems/ruby-1.9.3-p0@rmagick
/gems/rmagick-2.13.1/ext/RMagick/gem_make.out
An error occured while installing rmagick (2.13.1), and Bundler cannot
continue.
Make sure that `gem install rmagick -v '2.13.1'` succeeds before bundling.
</quote>
I used the regular trick to find the required debian/Ubuntu packages:
~/data/projects/temp/rmagick$ apt-cache search magick | grep '\-dev'
libmagick++-dev - object-oriented C++ interface to ImageMagick -
development files
libmagickcore-dev - low-level image manipulation library - development files
libmagickwand-dev - image manipulation library - development files
graphicsmagick-libmagick-dev-compat - image processing libraries providing
ImageMagick interface
libgraphicsmagick++1-dev - format-independent image processing - C++
development files
libgraphicsmagick1-dev - format-independent image processing - C
development files
libvips-dev - image processing system good for very large images (dev)
Installed
~/data/projects/temp/rmagick$ sudo apt-get install libmagickcore-dev
# this pulls in 80+ packages .. probably a smaller set would suffice ...
~/data/projects/temp/rmagick$ sudo apt-get install libmagickwand-dev
# this was only 1 package
And now gem install or bundle install works:
~/data/projects/temp/rmagick$ bundle install
Fetching source index for http://rubygems.org/
Installing rmagick (2.13.1) with native extensions
Using bundler (1.0.21)
I am just familiar with image manipulation within .net framework
developing environments, such as how to use visual basic language to
program image rotation, how to use visual c# to create image watermark.
And, can you show me how these imag editing operations can be realized
with java script?