Soup Monster
Posted by Nikolaus Gradwohl
a college of mine found another monster when she tried to eat her soup
extra low framerates in Processing
Posted by Nikolaus Gradwohl
when you want to write a processing sketch, that doesn't redraw several times a second, but updates the main method only once in a while (for example once per hour or minute) the following code can be used to start a thread that triggers a redraw after a delay. Just make sure the setup method calls the noLoop() methode and than start the thread calling start( millisecondsToWait );
void setup() {
size(300,300);
smooth();
noLoop(); // <- turn off the processing loop
start( 20 * 1000 ); // <- start the thread
}
void draw() {
background( 255 );
// draw some random circles
for ( int i =0; i< 10; i++) {
color c = color(random( 255 ));
fill( c );
stroke( c );
int radius = int(random( 100 )+ 40);
ellipse( random( width ), random( height ), radius, radius );
}
}
void start( final int mil ) { //<- mil has to be final to be accessible in run()
new Thread() {
public void run() {
while( true ) {
delay( mil );
redraw();
}
}
}.start();
}
Ruby Caldav Library 0.2
Posted by Nikolaus Gradwohl
I have made a new version of my ruby caldav lib.
version 0.2 is a bugfix release, there are no new features but i removed some essential typos
login screen background
Posted by Nikolaus Gradwohl
i just cleand up my harddisk a bit and found a background image i made a while ago for the login screen on my laptop
Nagios-Frontend in SL-viewer
Posted by Nikolaus Gradwohl
i wanted to test the region modules in OpenSimulator - a opensource server implementing the SecondLife protocol.
Because I didn't want to write another "hello world"-region module, i took my nagios-server as a datasource for my module.
now i can see the status of all the services my nagios is monitoring using a SL-Viewer :-)
the code is based on the demo-region from the opensim team and can be downloaded here.
qr-code midlet installer
Posted by Nikolaus Gradwohl
to simplify the installation of my mobileprocessing-sketch i have generated a qrcode-tag that downloads the jad file and installs the midlet on the mobile phone.
simply point a qrcode reader like the one from zxing to the image and click on download
Random numbers with MobileProcessing
Posted by Nikolaus Gradwohl
I wrote my first sketch in MobileProcessing. MobileProcessing is a processing dialect, that can be used to write apps for java-capable mobile phones.
The application can be used to generate random numbers. every key-event shows a new random number.
/**
a random number generator by
<a href="http://www.local-guru.net/blog">Guru</a>
*/
PFont font;
int rnd = 0;
void setup() {
font = loadFont( FACE_PROPORTIONAL, STYLE_PLAIN, SIZE_LARGE );
textFont( font );
textAlign( CENTER );
fill(0);
rnd = random(0,100000);
noLoop();
}
void draw() {
background(255);
text( "\n\n\n"+rnd, 0, 0, width, height );
}
void keyPressed() {
rnd = random(0,100000);
redraw();
}
the first snowdrop
Posted by Nikolaus Gradwohl
today i made a picture of the first snowdrop this year. the picture was shot with my new mobile phone (K550i - has a realy nice 2 megapixel cam with autofocus)
switching java-versions in ubuntu
Posted by Nikolaus Gradwohl
to switch between 2 installed versions of the jdk in ubuntu 2 commands are needed:
sudo update-alternatives --config java
is used to choose the java version
sudo update-alternatives --config javac
is used to change the javac version
osc sequencer in ruby
Posted by Nikolaus Gradwohl
I wrote a simple osc sequencer in ruby using rosc. The script triggers the drum-kit and the bass i implemented last week.
the pattern may also be of different length. This allows very interesting polyrythmic loops.
require 'osc'
Host = 'localhost'
Port = 3334
c = OSC::UDPSocket.new
hh = OSC::Message.new('/drum', 's', "hh" )
bd = OSC::Message.new('/drum', 's', "bd" )
sn = OSC::Message.new('/drum', 's', "sn" )
ba = OSC::Message.new('/bass', 'i', 64 )
#c.send sn, 0, Host, Port
bpm = 120
step = 1.0/8;
s = bpm * step / 60.0 ;
snd = [ bd, sn, hh ]
pattern = [
[1, 0, 0, 1, 0, 1, 0, 0 ],
[0, 0, 1, 0, 0, 0, 1, 1 ],
[1, 1, 1, 1, 1, 1, 1, 1 ]
]
bass = [
40, 40, 0, 40, 40, 0, 43, 0,
40, 40, 0, 40, 40, 0, 38, 0 ]
count = 0;
while(true)
(0..2).each { |i|
c.send(snd[i], 0, Host, Port) if pattern[i][count % pattern[i].length] == 1
}
ba.args = [bass[ count % bass.length]]
c.send( ba, 0, Host, Port ) if bass[ count % bass.length ] != 0
sleep s
count+=1
end
