GIMP Color-to-Alpha

From: http://gimpbook.com/tips.html
Eliminate a solid background behind text or a simple figure:
For instance, if you have a solid white background with antialiased text on it,
and you want to keep the text but change the background to transparent:
The Color to Alpha plug-in (in the Colors menu) will usually do a nice job, much better than Select by Color. If you need to touch up small areas, try drawing with the Paintbrush tool, with the foreground color set to the background color you want to erase and the tool's Mode set to Color Erase. (Make sure you've enabled alpha on the layer.)

This tool is under the "Color" menu -> Color to Alpha

svn: Can't move '.svn/tmp/entries' to '.svn/entries': Operation not permitted sshfs

Are you getting this error message on svn checkout with sshfs?

svn: Can't move '.svn/tmp/entries' to '.svn/entries': Operation not permitted sshfs

# Add the -o workaround=rename option fixes the problem

sshfs -o workaround=rename user@server:/dir ~/mnt/dir


See:

http://stackoverflow.com/questions/3016368/after-mounting-using-sshfs-i-cannot-commit-my-changes-using-subversion

Add new user on Ubuntu/Linux command line

useradd -m -s /bin/bash userName
passwd userName

LaTeX and git

Hi,

Some of you may remember our discussion at dinner about using git/SVN with LaTeX documents. One of the problems that was mentioned was line-based diff - whenever the formatting of the paragraph changes all of the lines are marked as modified, even if the content did not change.

* git diff --color-words

I found very nice solution to the problem: in git diff you can use the option --color-words which performs word-based diff and highlights the changes in colors.

* gitattributes

You can also put the following line into your .gitattributes file:

*.tex diff=tex

which treats some tags (likes \section{}) as separate words even if there is no whitespace in between.

I am almost converted to git - thanks for opening my eyes ;)

Cheers,

Bartek

PyAS - nuggets

PyAS - Nuggets

Ipython cpaste magic func to paste in code.

cython -a -> annotated html with colours for how long things take ... click to expand

Git & github getting started

Global setup:

Download and install Git
git config --global user.name "Your Name"
git config --global user.email eilif@gmx.de


Next steps:

mkdir test
cd test
git init
touch README
git add README
git commit -m 'first commit'
git remote add origin git@github.com:markovg/test.git
git push origin master


Existing Git Repo?

cd existing_git_repo
git remote add origin git@github.com:markovg/test.git
git push origin master


Importing a Subversion Repo?

Click here


When you're done:

Continue

Emacs tricks: cua-mode

cua-mode:

You cut some code from a website and it has a few columns of junk at the front, enter cua-mode

M-x cua-mode

Set marker, C-RET enters column mode. Select the block, C-x to cut.