lineFractal.pde

int x = 1;
int y = 0;
int x2 = 0;
int len = 100;
int y2 = 100;
boolean part1 = true;

void setup(){
  size(400,300);
  frameRate(10);
 // quad(2,4,7,2,19);
}

void draw(){
 parab();
}


void quad (float a, float b, float c, float xmin, float xmax){
  float y;
  for(float x=xmin; x<xmax; x=x+0.25){
    y = (a*x*x) + (b*x) + c;
    float x2 = -x;
    point(x+300, y);
    point(x2+300, y);
    
    
  }
}

// general quadratic function: y = ax^2 + bx + c
float quadraticY (float a, float b, float c, float x){
  return (a*x*x + b*x + c);
} 


public void parab(){
   if(part1==true){
    if(y<len){
        line(x,y,x2,y2);
         x2 +=2;
         y += 2;
     }else{
       part1=false;
     }
  
  }else{
    if (y2>10){
     line(x,y,x2,y2);
         x +=2;
         y2 -= 2;
    }
  }
}