// stl_scale.java   read  .stl file  scale into  new.stl file
//                  only changes  vertex  x  y  z
//                  set  xoff, yoff, zoff   xmin xmax still from old file
//                  set  xsca, ysca, zsca
//                  x = (x+xoff)*xsca

import java.io.*;
import java.util.*;
import java.text.*;

// solid rect
//   facet normal 0.0 0.0 -1.0
//     outer loop
//       vertex 1.0 1.0 1.0
//       vertex 5.0 4.0 1.0
//       vertex 1.0 4.0 1.0
//     endloop
//   endfacet
//   facet normal 0.0 0.0 -1.0
//     outer loop
//       vertex 1.0 1.0 1.0
//       vertex 5.0 1.0 1.0
//       vertex 5.0 4.0 1.0
//    endloop
//   endfacet
//...
// endsolid

public class stl_scale
{
  double xoff = 0.0; // set these 6 values  !!!
  double yoff = 0.0;
  double zoff = 0.0;
  double xsca = 1.5;
  double ysca = 1.5;
  double zsca = 1.0;
    
  boolean debug = false;
  int num_points = 0;
  double x, y, z;
  double xmin, xmax, ymin, ymax, zmin, zmax; // new
  StringTokenizer T;
  String token;
  String solid = "solid";
  String facet = "facet";
  String  normal = "normal";
  String  outer = "outer";
  String  loop = "loop";
  String  vertex = "vertex";
  String endloop = "endloop";
  String endfacet = "endfacet";
  String endsolid = "endsolid";
    
  stl_scale(String filein, String fileout) // callable
  {
    System.out.println("stl_scale.java reading "+filein+", writing "+fileout);
    System.out.println("xoff="+xoff+", yoff="+yoff+", zoff="+zoff);
    System.out.println("xsca="+xsca+", ysca="+ysca+", zsca="+zsca);
    try
    {
      FileReader fin = new FileReader(filein);
      BufferedReader in = new BufferedReader(fin);
      BufferedWriter fout = new BufferedWriter(new FileWriter(fileout));
      PrintWriter File_out = new PrintWriter(fout);

      String input_line;
      String line;
      int len;

      while(true) // to  endsolid
      {
        input_line = in.readLine(); // 
        len = input_line.length();
        if(debug) System.out.println("input:"+input_line+"  len="+len);
        T = new StringTokenizer(input_line," ");
        token = T.nextToken(); // ?
        if(debug) System.out.println("token:"+token);
	if(token.equals(endsolid))
	{
	  File_out.println(input_line);
	  break;
	}
	if(token.equals(solid))
	{
	  File_out.println(input_line);
	  continue;
	}
	if(token.equals(facet))
	{
	  File_out.println(input_line);
	  continue;
	}
	if(token.equals(outer))
	{
	  File_out.println(input_line);
	  continue;
	}
	if(token.equals(solid))
	{
	  File_out.println(input_line);
	  continue;
	}
	if(token.equals(endloop))
	{
	  File_out.println(input_line);
	  continue;
	}
	if(token.equals(endfacet))
	{
	  File_out.println(input_line);
	  continue;
	}
	if(token.equals(vertex))
	{
          token = T.nextToken(); // x
          if(debug) System.out.println("token:"+token);
          x = Double.parseDouble(token);
          token = T.nextToken(); // y
          if(debug) System.out.println("token:"+token);
          y = Double.parseDouble(token);
          token = T.nextToken(); // z
          if(debug) System.out.println("token:"+token);
          z = Double.parseDouble(token);
	  x = (x+xoff)*xsca;
	  y = (y+yoff)*ysca;
	  z = (z+zoff)*zsca;
	  num_points++;
	  File_out.println("      vertex "+x+" "+y+" "+z+" ");
	}
      } // end while
      fin.close();
      fout.close();
    } // end try
    catch(IOException exception)
    {
      System.out.println("datread.java "+exception);
    }
    System.out.println("stl_scale.java finished num_points="+num_points);
  } // end stl_scale

  public static void main (String[] args)
  {
    new stl_scale(args[0],args[1]); // .stl  new.stl
  }
} // end class stl_scale