Hi.

I'm trying to learn and understand the Geomerative library, but the examples I am working with use some code from an older version of the library.

Specifically I am looking for the new syntax for the subshapes variable:
http://www.ricardmarxer.com/old_geomerative/documentation/rshape_class_rshape.htm

Which I can't seem to locate in the new documentation. Here is the context:

1. import geomerative.*;
   
   PFont font;
   
   RFont f;
   RGroup grp;
   RShape s;
   
   float len;
   float angle;
   float pos;
   
   //------------------------ Runtime properties ----------------------------------
   // Save each frame
   boolean SAVEVIDEO = false;
   boolean SAVEFRAME = true;
   boolean APPLICATION = false;
   
   String DEFAULTAPPLETRENDERER = JAVA2D;
   int DEFAULTAPPLETWIDTH =600;
   int DEFAULTAPPLETHEIGHT =600;
   
   String DEFAULTAPPLICRENDERER = OPENGL;
   int DEFAULTAPPLICWIDTH = 600;
   int DEFAULTAPPLICHEIGHT =600;
   //------------------------------------------------------------------------------
   
   
   // The error range for the tangent position and angle
   float ANGLEERROR = 0.1;
   float POINTERROR = 0;
   
   
   // The length variation of the tangnet
   //   -> 500: sketchy, blueprint
   //   -> 150: light blueprint
   //   -> 2000: mystic
   float LENGTHTANGENT = 30;
   
   // The initial text
   String STRNG = "S";
   
   String FONT = "arial.ttf";
   
   // The alpha value of the lines
   int ALPHAVALUE = 2;
   
   // The velocity of the calligraphy
   int VELOCITY = 1;
   
   int MARGIN = 1;
   
   String newString = "";
   
   void setup(){
    
     int w = DEFAULTAPPLICWIDTH, h = DEFAULTAPPLICHEIGHT;
     String r = DEFAULTAPPLICRENDERER;
    
     if(!APPLICATION){
       // Specify the widtha and height at runtime
       w = int(param("width"));
       h = int(param("height"));
       r = (String)param("renderer");
    
    
       // (String) will return null if param("renderer") doesn't exist
       if (r != OPENGL && r != P3D && r != JAVA2D && r != P2D) {
         r = DEFAULTAPPLETRENDERER;
       }
       // int() will return 0 if param("width") doesn't exist
       if (w <= 0) {
         w = DEFAULTAPPLETWIDTH;
       }
       // int() will return 0 if param("height") doesn't exist
       if (h <= 0) {
         h = DEFAULTAPPLETHEIGHT;
       }
     }
    
     size(w,h,r);
     background(255);
     frameRate(25);
    
     LENGTHTANGENT = LENGTHTANGENT * width/800F;
    
     try{
       smooth();
     }catch(Exception e){}
    
     noFill();
    
    
   
       stroke(0, 0, 0,80);
      noFill();
   
     //f = new RFont(this, FONT, 372, RFont.CENTER);
       RG.init(this);
       f = new RFont(FONT, 372, RFont.CENTER);
   
     initialize();
   }
   
   void draw(){
     pushMatrix();
     translate(width/2,height/2);
     // Draw very low alpha and long tangents on random points of each letters
     for(int i=0;i<grp.countElements();i++){
       s = (RShape)(grp.elements[i]);
   
       for(int j=0;j<s.countChildren();j++){
         for(int k=0;k<VELOCITY;k++){
           pos = random(0, 1);
   
           RPoint tg = s.subshapes[j].getCurveTangent(pos);
           RPoint p = s.subshapes[j].getCurvePoint(pos);
   
           p.x = p.x + random(-POINTERROR,POINTERROR);
           p.y = p.y + random(-POINTERROR,POINTERROR);
   
          len = random(-LENGTHTANGENT, LENGTHTANGENT);
          angle = atan2(tg.y, tg.x) + random(-ANGLEERROR, ANGLEERROR);
          
           bezier(p.x,p.y,10,10,90,90,15,80);   
          
         }
       }
     }
     popMatrix();
   
    
     if(keyCode==ENTER){
       STRNG = newString;
       newString = "";
       initialize();
     }else if(keyCode==BACKSPACE){
       if(newString.length() !=0 ){
         newString = newString.substring(0,newString.length()-1);
       }
     }else if(keyCode!=SHIFT){
       newString += key;
     }
   }
   
   void initialize(){
     grp = f.toGroup(STRNG);
     grp.centerIn(g,MARGIN,1,1);
    
     background(255);
   }

this is an example taken from the following book

http://www.lulu.com/product/paperback/type-+-code-processing-for-designers/4430589

any help would be greatly appreciated.

thanks