Program freezes on loadTable()

adomarc

The following program appears to freeze on the loadTable() line. I can get the program to work fine in debugger mode by stepping through the code but it does not seem to want to execute properly with the normal run mode.

Table dotdata;
String filepath="";
String savefilepath="";
int columncount= 0;
int rowcount=0;

void setup() {
  size(500, 500);
  background(0);
  dotdata=new Table();
}

void draw() {
  selectInput("Select .txt file", "fileSelected");

  while (filepath=="") {
  };

  dotdata = loadTable(filepath, "tsv");
  print("hello");

  for (int i=0; i<7; i++) {
    dotdata.removeRow(0);
  }
  dotdata.removeColumn(5);
  dotdata.removeColumn(4);
  dotdata.removeColumn(1);
  dotdata.removeColumn(0);

  dotdata.addColumn();
  dotdata.addColumn();
  dotdata.addColumn();

  //int columncount= dotdata.getColumnCount();
  int rowcount=dotdata.getRowCount();


  for (int i=0; i<rowcount; i++) {
    dotdata.setFloat(i, 2, dotdata.getFloat(i, 0)+150);
    dotdata.setFloat(i, 3, dotdata.getFloat(i, 1)-150);
  }

  for (int i=0; i<rowcount; i++) {
    dotdata.setString(i, 4, str(dotdata.getFloat(i, 2)) + "," + str(dotdata.getFloat(i, 3)));
  }

  filepathnaming();

  saveTable(dotdata, savefilepath);
  exit();
}



void fileSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
    exit();
  } else {
    filepath=selection.getAbsolutePath();
  }
}

void filepathnaming() {
  savefilepath="";
  String[] filepathlist = split(filepath, "\\");

  for (int i=0; i<filepathlist.length-1; i++) {
    savefilepath +=filepathlist[i]+ "\\";
  }

  savefilepath += filepathlist[filepathlist.length-1].substring(0, filepathlist[filepathlist.length-1].indexOf(".txt"))+"_update.csv";

  println(savefilepath);
}

Chrisir

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Chrisir

Maybe instead of while use

if(!filepath.equals("") ) { ......

because draw loops automatically

Also, equality with strings: better use .equals("")

adomarc

@Chrisir

I tried your suggestions but I am still having the same issue. The while loop is there to wait until the user has finished inputting the file with selectInput().

Also note, the code works fine in debug mode if I step through the code.

adomarc

@Chrisir

I also get the following error message in the console when the code executes properly in Debug mode.

Exception in thread "AWT-EventQueue-0" com.sun.jdi.VMDisconnectedException: Got IOException from Virtual Machine at org.eclipse.jdi.internal.connect.PacketSendManager.sendPacket(PacketSendManager.java:90) at org.eclipse.jdi.internal.MirrorImpl.requestVM(MirrorImpl.java:187) at org.eclipse.jdi.internal.MirrorImpl.requestVM(MirrorImpl.java:227) at org.eclipse.jdi.internal.MirrorImpl.requestVM(MirrorImpl.java:243) at org.eclipse.jdi.internal.StringReferenceImpl.value(StringReferenceImpl.java:57) at processing.mode.java.debug.VariableNode.getStringValue(VariableNode.java:96) at processing.mode.java.VariableInspector$ValueCellRenderer.getTableCellRendererComponent(VariableInspector.java:626) at javax.swing.JTable.prepareRenderer(JTable.java:5723) at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:2114) at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:2016) at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:1812) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161) at javax.swing.JComponent.paintComponent(JComponent.java:780) at javax.swing.JComponent.paint(JComponent.java:1056) at javax.swing.JComponent.paintToOffscreen(JComponent.java:5210) at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1579) at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1502) at javax.swing.RepaintManager.paint(RepaintManager.java:1272) at javax.swing.JComponent._paintImmediately(JComponent.java:5158) at javax.swing.JComponent.paintImmediately(JComponent.java:4969) at javax.swing.RepaintManager$4.run(RepaintManager.java:831) at javax.swing.RepaintManager$4.run(RepaintManager.java:814) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:789) at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:738) at javax.swing.RepaintManager.access$1200(RepaintManager.java:64) at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1732) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:726) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Chrisir

I understood why you use while but I think it's not a good idea

also == doesn't work on String

This seems to work:

Table dotdata;
String filepath="";
String savefilepath="";
int columncount= 0;
int rowcount=0;

void setup() {
  size(500, 500);
  background(0);
  dotdata=new Table();

  selectInput("Select .txt file", "fileSelected"); // !!!!!!!!!!!!!!!!!!!!!!!!!!!!
}

void draw() {

  if (!filepath.equals("")) {  // !!!!!!!!!!!!!!!!!

    dotdata = loadTable(filepath, "tsv");
    //  print("hello");

    TableRow r1=dotdata.getRow(0); 

    println(r1.toString());


    for (int i=0; i<7; i++) {
      dotdata.removeRow(0);
    }
    dotdata.removeColumn(5);
    dotdata.removeColumn(4);
    dotdata.removeColumn(1);
    dotdata.removeColumn(0);

    dotdata.addColumn();
    dotdata.addColumn();
    dotdata.addColumn();

    //int columncount= dotdata.getColumnCount();
    int rowcount=dotdata.getRowCount();


    for (int i=0; i<rowcount; i++) {
      dotdata.setFloat(i, 2, dotdata.getFloat(i, 0)+150);
      dotdata.setFloat(i, 3, dotdata.getFloat(i, 1)-150);
    }

    for (int i=0; i<rowcount; i++) {
      dotdata.setString(i, 4, str(dotdata.getFloat(i, 2)) + "," + str(dotdata.getFloat(i, 3)));
    }

    filepathnaming();

    saveTable(dotdata, savefilepath);
    exit();
  }
} 

void fileSelected(File selection) {
  if (selection == null) {
    println("Window was closed or the user hit cancel.");
    exit();
  } else {
    filepath=selection.getAbsolutePath();
  }
}

void filepathnaming() {
  savefilepath="";
  String[] filepathlist = split(filepath, "\\");

  for (int i=0; i<filepathlist.length-1; i++) {
    savefilepath +=filepathlist[i]+ "\\";
  }

  savefilepath += filepathlist[filepathlist.length-1].substring(0, filepathlist[filepathlist.length-1].indexOf(".txt"))+"_update.csv";

  println(savefilepath);
}
///