Hi all ,
Am making a program that change the size of 28 images according to value given by a user ,the idea of the program is , every time the program asks the user to input  anew value to change the size for the current  image.The thing is every time I entered a new value for each image and then save these images , then when I check the size of the images after save them I notice the size of all the images are the same according to the latest value I have entered . Please I need an idea about how to change  the size of each single image according to a given value every time.  
here  is my code

1. /*
    * To change this template, choose Tools | Templates
    * and open the template in the editor.
    */
   
   package migpackage;
   
   import java.io.BufferedReader;
   import java.io.FileNotFoundException;
   import java.io.FileReader;
   import java.io.IOException;
   import java.util.ArrayList;
   import java.util.Scanner;
   import java.util.StringTokenizer;
   import processing.core.PApplet;
   import processing.core.PImage;
   
   /**
    *
    * @author tamara
    */
   public class MarkerImageGenerator extends PApplet {
   
      // ArrayList<TableRecord>csvInputTableRecords= new ArrayList <TableRecord>();
       ArrayList <PImage> images = new ArrayList<PImage>();
       ArrayList<String> arraylistofImages= new ArrayList<String>();
       ArrayList <PImage> markers = new ArrayList<PImage>();
       ArrayList<String> arraylistofMarkers= new ArrayList<String>();
       public int index=0;
      
       public float cm2;
       public float cm;
       public int markerWidth;
       public int markerHeight;
       Scanner input = new Scanner(System.in);
      
       public float pixelPerCmOfWidth;
       public float pixelPerCmOfHeight;
   
   
   
      
   public static void main(String[] args)
   {
       PApplet.main(new String[]{"--present", "migpackage.MarkerImageGenerator"});
             // ArrayList<TableRecord>csvInputTableRecords= new ArrayList <TableRecord>();
           // TODO code application logic here
   }
       private StringTokenizer st;
       private StringTokenizer st1;
       private ArrayList<TableRecord> csvInputTableRecords = new ArrayList<TableRecord> ();
       private ArrayList<MarkerId> csvInputMarkerIds = new ArrayList<MarkerId> ();
      
         @Override
   
   public void setup()
   {
   
     
       frameRate(1);
       loadCsv("C:\\Documents and Settings\\tamara\\My Documents\\NetBeansProjects\\MIGPackage\\src\\migpackage\\csv\\test4.txt");
       String []imgs =getImageFilenames(csvInputTableRecords);
   
      
       for (int i = 0 ; i < imgs.length ; i++)
       {
           images.add(loadImage("C:\\Documents and Settings\\tamara\\My Documents\\NetBeansProjects\\MIGPackage\\src\\migpackage\\images\\"+imgs[i]));
          
       }
   
       System.out.println("images size:"+ images.size());
       loadCsv2("C:\\Documents and Settings\\tamara\\My Documents\\NetBeansProjects\\MIGPackage\\src\\migpackage\\csv2\\test7.txt");
       String []marks =getMarkerImageFilenames(csvInputMarkerIds);
       for (int j = 0 ; j < marks.length ; j++)
       {
        markers.add(loadImage("C:\\Documents and Settings\\tamara\\My Documents\\NetBeansProjects\\MIGPackage\\src\\migpackage\\markers\\"+marks[j]));
       }
   
        for( int i = 0 ; i < markers.size(); i ++)
          
       {
           System.out.println("marker no:" + markers.size());
   
           markerWidth = markers.get(i).width;
           markerHeight = markers.get(i).height;
           println("The size of the marker before scaling is" + markerWidth + " " + markerHeight);
           float pixelPerCmOfWidth = (100f / 2.54f);
           float pixelPerCmOfHeight = (100f / 2.54f);
           println("the size of the marker per cm is " + pixelPerCmOfWidth + " " + pixelPerCmOfHeight);
        //println("the size of the marker per cm is " + pixelPerCmOfWidth + " " + pixelPerCmOfHeight);
           System.out.print("Enter the size");
      
           float size1 = input.nextFloat();
           System.out.print("Enter the width");
   
   
           cm = size1 *pixelPerCmOfHeight;
           cm2 = size1*pixelPerCmOfWidth;
           scale(cm,cm2);
           println(cm + " " + cm2);
           size((int)cm, (int)cm2);
       }
   
      
   
   
   
   
           /*println("The size of the marker before scaling is" + markerWidth + " " + markerHeight);
          
          
          
           float pixelPerCmOfWidth = (100f / 2.54f);
          float pixelPerCmOfHeight = (100f / 2.54f);
           println("the size of the marker per cm is " + pixelPerCmOfWidth + " " + pixelPerCmOfHeight);
           System.out.print("Enter the size of an image");
           float size1 = input.nextFloat();
           cm = size1 * pixelPerCmOfWidth;
           cm2 = size1 * pixelPerCmOfHeight;
           scale(cm,cm2);
           println(cm + " " + cm2);
            size((int)cm, (int)cm2);*/
   
   }
   void loadCsv(String filename) //throws IOException
   {
     try
     {
       FileReader fr = new FileReader(filename);
   
       BufferedReader br = new BufferedReader(fr);
   
       // declare String variable and prime the read
         String read = br.readLine( );
   
   
   
       while( read != null ) // end of the file?
       {
         st = new StringTokenizer( read, "," );
         //We will check for unique items and add to the arraylist.
        
         // println(sc);
   
         // Get our scene names
         String sc= st.nextToken();
         String cond = st.nextToken( );
         String img = st.nextToken( );
   //      String marker = st.nextToken( );
   
   
         try
         {
           TableRecord trTemp = new TableRecord(sc,cond,img);
           csvInputTableRecords.add(trTemp);
         }
   
         catch( NumberFormatException nfe )
         {
           System.out.println( "Error in table record: "
             + read
             + "; record ignored");
         }    //end of catch
   
         // read the next line
   
         read = br.readLine( );
       }// release resources associated with "flights.txt"
   
       br.close( );
     }//end of try
   
   
     catch( FileNotFoundException fnfe )
     {
       System.out.println( "Unable to find test4.txt" );
     }
   
     catch(IOException ioe)
     {
       ioe.printStackTrace( );
     }
   }
   
   String [] getImageFilenames(ArrayList <TableRecord> firstFile)
        {
             for( int i =0 ; i < firstFile.size() ; i++)
             {
                 arraylistofImages.add(firstFile.get(i).getImgName());
   
             }
              String tempImage[] =new String[arraylistofImages.size()];
                 arraylistofImages.toArray(tempImage);
                 return tempImage;
         }
   
   
   void loadCsv2(String filename1) //throws IOException
   {
     try
     {
       FileReader fr1 = new FileReader(filename1);
   
       BufferedReader br1 = new BufferedReader(fr1);
   
       // declare String variable and prime the read
         String read1 = br1.readLine( );
   
       //   System.out.println(read1);
   
   
       while( read1 != null ) // end of the file?
       {
         st1 = new StringTokenizer( read1, "," );
         System.out.println(st1.countTokens());
         //We will check for unique items and add to the arraylist.
         String mk = new String();
         String patt = new String();
         // println(sc);
         while (st1.hasMoreElements())
         {
           mk = st1.nextToken();
           patt = st1.nextToken( );
         }
         try
         {
           MarkerId trTemp1 = new MarkerId(mk,patt);
           csvInputMarkerIds.add(trTemp1);
         }
   
         catch( NumberFormatException nfe )
         {
           System.out.println( "Error in table record: "
             + read1
             + "; record ignored");
         }    //end of catch
   
         // read the next line
   
         read1 = br1.readLine( );
       }// release resources associated with "flights.txt"
   
       br1.close( );
     }//end of try
   
   
     catch( FileNotFoundException fnfe )
     {
       System.out.println( "Unable to find test7.txt" );
     }
   
     catch(IOException ioe)
     {
       ioe.printStackTrace( );
     }
   }
   String [] getMarkerImageFilenames(ArrayList <MarkerId> firstFile1)
        {
             for( int i =0 ; i < firstFile1.size() ; i++)
             {
                 arraylistofMarkers.add(firstFile1.get(i).getMarker());
   
             }
              String tempMarker[] =new String[arraylistofMarkers.size()];
              arraylistofMarkers.toArray(tempMarker);
              return tempMarker;
         }
   
   
   
   
       @Override
    public void draw()
    {
       System.out.println(markers.size());
               
      if(index<markers.size())
       {
       
               System.out.println("hello");
             
          
              ;
               image(markers.get(index), 0, 0,cm, cm2);
   
   
               save("image_name" + index + ".png");
               index++;
          
        }
          
       }
   }// </editor-fold>// </editor-fold>
   
   
   

Hi all ,
Am trying to change a scale the size  of an image according to a parameter given by a user . The thing is the size of an image it seems  never be  changed after I input the parameter, I do not know why , am using NetBeans with processing
 here is my code , if any one can help me, Thanks

1. /*
    * To change this template, choose Tools | Templates
    * and open the template in the editor.
    */
   
   package markerscaling;
   
   import java.util.Scanner;
   import processing.core.PApplet;
   import processing.core.PImage;
   
   /**
    *
    * @author tamara
    */
   public class Main  extends PApplet{
       Scanner input =new Scanner(System.in);
        public PImage marker;
       public float cm;
       public float cm2;
       public int markerWidth;
       public int markerHeight;
       public static void main(String[] args)
   {
       PApplet.main(new String[]{"--present", "markerscaling.Main"});
             // ArrayList<TableRecord>csvInputTableRecords= new ArrayList <TableRecord>();
           // TODO code application logic here
   }
       @Override
   public void setup()
   {
   
            marker= loadImage("25.png");
            markerWidth= marker.width;
            markerHeight=marker.height;
            println("The size of the marker before scaling is"+ markerWidth+" "+ markerHeight);
            float pixelPerInchOfWidth=markerWidth/72;
            float pixelPerInchOfHight=markerHeight/72;
            float pixelPerCmOfWidth=  (pixelPerInchOfWidth / 2.54f);
            float pixelPerCmOfHeight= (pixelPerInchOfHight / 2.54f);
   
            System.out.print("Enter the size of am imaege");
            float size= input.nextFloat();
           
           
            cm =size*pixelPerCmOfWidth;
            cm2=size*pixelPerCmOfHeight;
           // scale(1.5f,1.5f);
   
           println("the size of the marker after scaling is"+markerWidth+" "+ markerHeight);
          
           size(markerWidth, markerHeight);
           noLoop();
      
       }
       @Override
      public  void draw()
       {
          
           scale(markerWidth/cm, markerHeight/cm2);
         
           image(marker,0,0);
           save("marker.png");
          
       }
       public void KeyPressed()
       {
   
           redraw();
       }
          
   }
   
   
   
   
   
   
   
   
   
   
   
   
   

Hi ,
I have an array and and an arraylist , and i want to compare two values from the both , how should i do it??

For example

1. void collectscenes ()
   {
     for( int i = 0 ; i < listTableRecords.size(); i++)
     {
       if( uniqueScenes[i].equals(listTableRecords[i].getScene()))
       {
         println("Ok");
       }
     }
   }
   

Hi ,
I have the following method that I created in Processing.

1. int searchthis( String item)
     {
       for( int i = 0 ; i< scenes.length ; i++)
       {
         if(scenes[i].equals(item))
         {
           return i;
         }
         else
           return -1;
       }
     }

However, for some reason or other, it does not seem to work.  It gives me the error:

processing.app.debug.RunnerException: unexpected token: int

I have even tried to use public int, however, this does not work either.

Can you see what I am doing wrong in this?

Thanks,


PS.

I just moved it down further in the code and also noticed that I get the error

"This method must return a result of type int"

Hi ,
How can  I read a file from a command line ? Is it possible for processing?

Hi ,

Am trying to make a program of computer vision ,  the program should be able to track the markers  within images and when  it recognizes these markers, it   draws a virtual object on the marker , then the program should be able to register the positions of the marker for example if the program managed to track the  first marker it  registers xy1 as a floating point vector and so on for the rest of the markers  with changing in the value of the vector.Well I managed to   get the program that can  track more than one marker  I used the  library of ( Processing+NyARToolkit+multiple marker tracking)
http://cpbotha.net/2010/06/05/processing-nyartoolkit-multiple-marker-tracking/ .

My  question is , is there any function  or  API   Documentation that enables me to register the position of the markers ?

Thanks.

Hi all
I have a 27 images which is taken from a CSV file and I need to load all the images and display them in one time  then  save them , my problem is, when I try to display  them ,they appear one image over the other   . what can i do please so I can display them correctly .
 here is my code that I used to load the images



PImage[] images;
int i;
Record[] records;
int recordCount;
void setup()
{    size(1000,1000);
    images=new PImage[27];
    frameRate(30);
    String[] lines = loadStrings("test4.txt");
    records = new Record[lines.length];
    for (int i = 0; i < lines.length; i++)
    {
        String[] pieces = split(lines[i], ','); // Load data into array
        if (pieces.length == 4)
       {
           records[recordCount] = new Record(pieces);
           recordCount++;
       }
    }
       /*for (int i = 0; i < recordCount; i++)
          {
             String img_name=records[i].img_name;
             images[i]= loadImage("Processing\\sketch_sep07a\\"+img_name);
          }
       */
   }
      


 void draw()
   {
      for (int i = 0; i < recordCount; i++)
      {
        String img_name=records[i].img_name;
        images[i]= loadImage("Processing\\sketch_sep07a\\"+img_name);
     
        image(images[i],0,0);
      }
  }
  
  
 

 

Hi ,
If i have a CSV file which contains 3 columns and another CSV file which contains one column and I want to merger the two files in another file , will the out put file contain  five columns ??
Thanks.

Hi ,

I am  try to read a text file and when I want run the program it giving me an error  unable to find the file

here is my code . I put the   text file in the same sketch folder  and  the program also can not find  it .

import java.io.FileReader;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.StringTokenizer;
import java.util.ArrayList;

//ArrayList<TableRecord> listTableRecords;

void setup()
{
  size(100,100);
  ArrayList <TableRecord> listTableRecords = new ArrayList<TableRecord>( );

   try
   {  
      FileReader fr = new FileReader("experiment2.txt");
     // FileReader ft=new FileReader("tofile.txt");
      BufferedReader br = new BufferedReader( fr );
     
 
      // declare String variable and prime the read
     String stringRead = br.readLine( );
    while( stringRead != null ) // end of the file?
    {
           // process the line read
            StringTokenizer st = new StringTokenizer( stringRead, "," );
            String scene = st.nextToken( );
            String condition = st.nextToken( );
            String  img_name = st.nextToken( );
         try
          {
              TableRecord frTemp = new TableRecord(scene, condition,img_name);
      
              // add FlightRecord obj to listFlightRecords
              listTableRecords.add( frTemp );
          }
         
       
         catch( NumberFormatException nfe )
          {
               System.out.println( "Error in flight record: "
                              + stringRead
                              + "; record ignored" );
          }
         
           // read the next line
           stringRead = br.readLine( );
          }
       

        
         // release resources associated with "flights.txt"
         br.close( );
    }
    catch( FileNotFoundException fnfe )
    {
       System.out.println( "Unable to find experiment2.txt" );
    }
      
   catch( IOException ioe )
    {
     ioe.printStackTrace( );
    }
   
    // print the TableRecords read
   for ( TableRecord table : listTableRecords )
       System.out.println( table );
      
      
}
   
                                     
             
             

 



      

Hi ,
I have generated a CSV file with three column by Microsoft Excel and I want to add a  new column with data but I do not know how to do it any help please ??

Thanks 

Hi ,
when I use mkdir() function in processing it  gives me an error  The function mkdir() does not exist .

what should I do ??

Thanks.

Hi All ,

Does any one know how to create directory (Folder) using processing ??

Thanks.

Hi all,
Does any one know how to paste on image which is a small size on a corner of   another image which is a bigger size??
Thanks

Hi all ,
Am doing a program which blends between two  images but I got this  error

"The file "test.JPEG" is missing or inaccessible, make sure the URL is valid or that the file has been added to your sketch and is readable."



this is my program :-

PImage img ;
    PImage maskImg ;
int []id0 ={0,1,1,1,1,1,0,1,1};
int xCorner;
int yCorner;
int boxWidth;
int boxHeight;
 void setup()
 {
     size(100, 100);
     xCorner=10;
     yCorner=10;
     boxWidth=20;
     boxHeight=20;
     img =loadImage("test.JPEG");
     maskImg=loadImage("rect2.JPEG");
     img.blend(maskImg,12, 12, 76, 76, 12, 12, 76, 76, ADD);
     image(img, 0, 0);
 }

void draw()
{
   background(0);
   int xCount=0;
    int yCount=0;
    for(int i=0;i<id0.length;i++)
      {
          int value=id0[i]; 
          if(value==1)
            {
            
             
              rect(xCorner+(boxWidth*xCount),yCorner+(boxHeight*yCount),boxHeight,boxWidth);
              stroke(255);
              fill(255);
             
             save("rect2.JPEG");
            
             
            }
        

           xCount++;
           if(xCount==3){
               xCount=0;
               yCount++;
            }
           
      }
}

any one tells me what I have to do please ..
thanks

Hi all ,
Am using artoolkit with processing .I have to create so many PNG files with markers and  descriptor files for artoolkit .

does any one know  how to create descriptor files of the markers for artoolkit using processing??

Cheers .

Hi all ,

Am doing a program to generate several markers .Each marker with different ID ,
and I need   to  make the program ask the user  to input the id ,
how can I get an input from the  keyboard ??
any help please ..

Thanks