Example for using Iterator class from Iterator.pde

iteratefx02.pde

// ok let's see what happens

// this is my default color block
// not all colors may be used in any particular sketch
color nearBlack = color(11,11,18,255);
color darkBGray = color(43,49,55,255);
color lightBGray = color(143,149,165,255);
color skyBlue = color(38,178,238,45);
color vViolet = color(155,74,237,95);
color vYellow = color(255, 255, 0, 255);

// until I figure out how to change values inside a color object
// noisy variation will have to be done directly on rgb values
// which are then reassembled in the Iterator.noiseColor() method
// and returned as a color
// so this is skyBlue in the raw:
/*
int red = 38;
int green = 178;
int blue = 238;
int alpha = 45;
*/


int red = int(random(45,255));
int green = int(random(45,255));
int blue = int(random(45,255));
int alpha = 31;
color pointColor = color(red, green, blue, alpha);

// for label font
//PFont font;
Iterator iter;

// number of points to iterate over per draw() loop
// will be chosen randomly from range (c0-cn, x0-xn)
// this number increments relatively quickly
//int generations = 5000;
int generations = 20000;

// how many times to iterate f(x) before graphing (c, x)
int iterations = 600;
//int iterations = 300;
// int iterations = 200;
// int iterations = 100;
// // these are too low for more than testing for most functions
//int iterations = 50;
//int iterations = 25;

// range for konstant
float k0 = -0.1;
float kn = 2.751;

float expn = random(-2.1, 2.1);

// ranges for x and c

// large starting pool to survey results
// float x0 = -2.85;
// float c0 = -2.85;
// float xn = 2.85;
// float cn = 2.85;

// // values to mess with
float x0 = -0.51;
float c0 = -11.5;
float xn = 0.52;
float cn = 0.1;

/*
// shows whole of interesting part of x -> x^2 + c
float x0 = -2.0;
float c0 = -2.25;
float xn = 2.25;
float cn = 0.5;
*/


int count = 0;
int totalPoints = 0;

/*// debug draw
int pw = 2;
int ph = 2;
*/

String path = "~/Dropbox/programming/seehear/_images/iteratefx02/";

void setup(){
	size(1910, 1030);
	background(nearBlack);
	//slower framerate in setup() for more time to see.
	//frameRate(30);

	iter = new Iterator(generations, iterations, expn, x0, xn, c0, cn, k0, kn);
	// iter.initExp(n0, nn, true);
	iter.startNoise();
	
	// uncomment for graph lines through origin (0,0)
	// stroke(darkBGray);
	// iter.drawGraph();

	// font for label
	//font = loadFont("SquareShooterMono48.vlw");
}

void draw(){
	smooth();

	/* debug */
	// stroke(vYellow);
	// point(width/pw, height/2);
	// point(width/2, height/ph);
	// pw++;
	// ph++;

	stroke(pointColor);
	noFill();
	iter.iterate();

	// this iteration of Iterator does not have this Noisy Method yet!
	// iter.iterateWithNoisyExponent();

	// draw label
	/*
	textFont(font, 36);
	textAlign(CENTER);
	totalPoints += generations;
	String tPoints = str(totalPoints);
	float stringW = textWidth(tPoints);
	fill(nearBlack);
	noStroke();
	// args for rect(startx, starty, width, height)
	rect((width/2)-(stringW/2), height-(100+36),  stringW,36);
	fill(lightBGray);
	text(tPoints, width/2, height-100);
  */
	
	// get new color
	iter.noisePlease();
	pointColor = iter.noiseColor(red, green, blue, alpha);

	if((frameCount % 1000) == 0){
		String filename = path + "fx02.0" + frameCount + ".png";
		save(filename);
	}
}