IFD:All Hail The Pixels/ProcessingSketches: Difference between revisions

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-== 17.10.2011 Processing sketches ==
+== 17.10.2014 Processing sketches ==
 === P01 Shapes and Relations ===
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    line(-halfDimension, -halfDimension, halfDimension, halfDimension );
    line( halfDimension, -halfDimension, -halfDimension, halfDimension);
+}
+</source>
+<br /><br />
+== 07.11.2014 Processing sketches ==
+=== P03 Nested Rects ===
+<source lang="java">
+/*
+ P03 Nested Rectangles with a while loop
+ Demonstration of how to make a repetetive structure using
+ a while-loop. Here the variable "rectSize" is decreased in
+ every step and the coordinate system is rotated a little bit
+ as well. The while-loop is executed as long as the value
+ of rectSize is larger than zero (rectSize > 0).
+*/
+size(1000,600);
+// variable with the start size of the rectangles structure
+int rectSize = 500;
+// variable to specify the amount the rectangles are shrinked in each step
+int difference = 30;
+background(255);
+// since all shapes are aligned centered, the center rect mode is used
+rectMode(CENTER);
+noFill();
+// set the origin of the coordinate system to the center of the stage
+translate(width/2, height/2);
+// continue the following statements within the while-loop as long as the value
+// of the variable "rectSize" is larger than 0
+while(rectSize > 0){
+  //draw a rectangle with the actual size of "rectSize"
+  rect(0,0,rectSize,rectSize);
+  // for the next loop: decrease the value of "rectSize" by the value of "difference"
+  rectSize = rectSize - difference;
+  // rotate the coordinate system by 4 degrees
+  rotate(radians(4));
 }
 </source>
 <br /><br />