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Showing posts from April, 2011

Web Fonts, emacs, Tron Legacy

After read the jtnimoy blog, about how emacs got into Tron Legacy. I had noticed he had embedded a beautiful typeface on his site and I started to pay some attention on web fonts and the new Google service "Google Web Fonts".
They have a good collection of fonts available under an open source license.

Getting which browser access your site, from apache's logs

I am developing a small web based system to run inside my sector here where I work. I had spend some time to make it compatible with the majority of web browsers available. I'm still not using html 5 and rendering dynamic graphics to png to display on Internet Explorer browsers. Even the PNG transparency is fixed to a solid background color for better rendering on Internet Explorer 6, so I decided to check which browser my colleges are using to access this small system.
To do it so, I used the follow line on my server's console:
cat /var/log/apache2/access.log | cut -d "\"" -f 6 | sort | uniq

Which had returned:

GbPlugin
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; InfoPath.1; InfoPath.2)
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; InfoPath.2)
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2)
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SL…

How to create stacked area graphs with Gnuplot

Marco has a nice tutorial showing how to make stacked area charts using Gnuplot.
http://freesoftware.zona-m.net/how-to-create-stacked-area-graphs-with-gnuplot/

jquery plugin for mind mapping

Looking for some jquery plugin for mind mapping, I've reached a stakoverflow conversation:
http://stackoverflow.com/questions/1374149/jquery-mind-map-think-map

And there is a cool demo here re-written with jquery:
https://github.com/kennethkufluk/js-mindmap

Last version (pure javascript)
http://kenneth.kufluk.com/google/js-mindmap/

And another tool, also interesting which worth a future review:
http://thejit.org/demos/

RRDtool, MRTG, Tobi Oetiker

Tobi Oetiker has created two good tools for visualizations, th MRTG and the RRDtool. Both realy worth attention for their performance and in special the RRDtool for its versatility.


Changing SVG with inkscape from command line

One can do more than simple convert vector to raster drawings with inkscape from the command line. In fact, there are other tools if the goal is just converting files, as rsvg and convert.

With inkscape, is also possible to change the drawing, using verbs.

From the inkscape man page, we can find the folowing example:
Duplicate the object with id="path1555", rotate the duplicate 90 degrees, save SVG, and quit:
inkscape filename.svg --select=path1555 --verb=EditDuplicate --verb=ObjectRotate90 --verb=FileSave --verb=FileCloseGoogling a little on inkscape "--verb", I did find more examples, a list with the available verbs and details from the inkscape wiki.