Posted by Nikolaus Gradwohl
Sat, 28 Nov 2009 04:23:00 GMT
Ruby provides some very interesting set operations on arrays.
given the two arrays A and B wich look like this
A = ["A", "B", "C", "D"]
B = ["C", "D", "E"]
There are three set operations we can use that union, intersection and difference.
Union
A | B
contains all elements from both sets without doublicates. So this
results in ["A", "B", "C", "D", "E"]
Difference
A - B
contains all elements from set A that are not in set B. So this
results in ["A", "B"]
Intersection
A & B
contains all elements that are in set A and in set B. So this
results in ["C", "D"]
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Posted by Nikolaus Gradwohl
Mon, 23 Nov 2009 02:06:00 GMT
45 pages so far. I started making screenshots for the examples, and finished some of the code examples.
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Posted by Nikolaus Gradwohl
Sun, 15 Nov 2009 05:42:00 GMT
32 pages so far, i added another section and i finished some of the examples for the book.
One example for the chapter on interaction will be a litte game. The player has to type
some random letters that appear on the screen. After 20 sections the number of found
letters is displayed as the score.
click here to give it a try
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Posted by Nikolaus Gradwohl
Thu, 12 Nov 2009 03:57:00 GMT
I wrote a processing-sketch to test how to connect to points using
multiple curves that are slightliy shifted by random values. Looks
really good in datavisualisation apps.
click here to run
the applet and see the code.
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Posted by Nikolaus Gradwohl
Wed, 11 Nov 2009 02:20:00 GMT
I wrote 26 pages so far, and i startet a new chapter on interaction using audio and video.
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Posted by Nikolaus Gradwohl
Sat, 07 Nov 2009 09:36:00 GMT
It's a bit chaotic at the moment, but i managed to write at least 1/2 a page every day. I have 21 pages now and i
have split up my docbook file in one file per chapter. I also started writing some of the example processing-sketches.
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Posted by Nikolaus Gradwohl
Sat, 07 Nov 2009 06:14:00 GMT
have made a new version of my ruby caldav lib.
version 0.3 is a bugfix release, to make it work with the kde4 calendar
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Posted by Nikolaus Gradwohl
Thu, 05 Nov 2009 03:22:00 GMT
I wrote 4 new pages on the processing book i write for pragprowrimo,
and startet to read what i have written. i also fixed some small typos.
i think one section needs to be rewritten, but i'm surpriced how well it works so far.
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Posted by Nikolaus Gradwohl
Tue, 03 Nov 2009 03:00:00 GMT
I wrote anoter 5 pages of my processing book, and as the praglife blog tells us
i haven't tried to correct anything besides syntax-errors in my docbook files yet.
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Posted by Nikolaus Gradwohl
Sun, 01 Nov 2009 19:26:00 GMT
The pragmatic programmers have started the Pragmatic Programmers Writing Month and post tips in their
pragmatic live blog. The goal is to write 80 pages or more during november.
I have started
a book on processing today and managed to write my first 6 pages. i will post my progress
on this blog and tag the articles with pragprowrimo
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