GMU:Speculative Atmospheres/Andrea Geyer: Difference between revisions

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   if (data != null) {
   if (data != null) {
     int intData = int(data); // ---> variable for incoming data
     int intData = int(data); // ---> !! variable for incoming data


     background(255, 255, 0);
     background(255, 255, 0);
     noStroke ();
     noStroke ();
     ellipse (560, 360, 600, 600); // ---> 1. circle: as a reference for the 2. circle
     ellipse (560, 360, 600, 600);  
    /* ---> 1. circle: 'background circle' (just as a referrence for the 2. circle) */


     noStroke ();
     noStroke ();
     fill (intData, intData, intData); // ---> !! set fill color with the value read
     fill (intData, intData, intData); // ---> !! set fill colour with the value read
     ellipse (560, 360, intData, 600); // ---> 2. circle: visualizes the incoming data
     ellipse (560, 360, intData, 600);  
    /* ---> 2. circle: the 'pupil' (visualizes the incoming data) */
   }
   }
}
}

Revision as of 11:10, 11 May 2021

An experiment with the LED sensor of an Arduino, linked to Processing graphics:

inverted pulsating cat’s eye

When the light is high, the pupil of the cat’s eye widens,

when the light is low, the pupil of the cat’s eye closes.

[I know in reality, it’s the other ways round… ;) ]


--> The color of the pupil also changes, from bright (high value) to dark (low value)

Cateye1.png

Cateye2.png

Cateye3.png

Cateye4.png


the relevant part of the processing code:

 if (data != null) {
   int intData = int(data); // ---> !! variable for incoming data
   background(255, 255, 0);
   noStroke ();
   ellipse (560, 360, 600, 600); 
   /* ---> 1. circle: 'background circle' (just as a referrence for the 2. circle) */
   noStroke ();
   fill (intData, intData, intData); // ---> !! set fill colour with the value read
   ellipse (560, 360, intData, 600); 
   /* ---> 2. circle: the 'pupil' (visualizes the incoming data) */
 }

}