Make the new node selector applet live, since no more feedback was

forthcoming ...

robots/tracker/GNUmakefile.in

@@ -14,8 +14,7 @@ include $(OBJDIR)/Makeconf
 ifeq ($(JAVAC),)
 JARS =
 else
-JARS = $(TESTBED_SRCDIR)/www/robotrack/tracker.jar \
-	$(TESTBED_SRCDIR)/www/robotrack/selector.jar
+JARS = $(TESTBED_SRCDIR)/www/robotrack/tracker.jar
 endif
 
 all:

tools/selectapplet/NodeSelect.java

@@ -30,9 +30,11 @@ public class NodeSelect extends JApplet {
     private Selector		selector;
     int				myHeight, myWidth;
     String			uid, auth, pid, eid;
-    double			pixels_per_meter = 1.0;
+    double			pixels_per_meter = 100.0;
     URL				urlServer;
     static final DecimalFormat  FORMATTER = new DecimalFormat("0.00");
+    static final int            INCH =
+	Toolkit.getDefaultToolkit().getScreenResolution();
     
     /* From the floormap generation code. */
     int X_ADJUST = 60;
@@ -43,6 +45,7 @@ public class NodeSelect extends JApplet {
     int FONT_WIDTH  = 10;
     Font OurFont    = null;
     Font BoldFont   = null;
+    Font RulerFont  = null;
 
     // The width of the list boxes.
     int LISTBOX_WIDTH = 150;
@@ -50,6 +53,10 @@ public class NodeSelect extends JApplet {
     // For zooming ...
     double scale = 1.0;
 
+    // rulers
+    int HORIZONTAL = 0;
+    int VERTICAL   = 1;
+    
     /*
      * A little class to hold info we need to get data from the server
      * about buildings, floors, nodes.
@@ -150,8 +157,9 @@ public class NodeSelect extends JApplet {
 	    myHeight = appletSize.height;
 	    myWidth  = appletSize.width;
 	}
-	OurFont  = new Font("Helvetica", Font.BOLD, 16);
-	BoldFont = new Font("Helvetica", Font.BOLD, 20);
+	OurFont   = new Font("Helvetica", Font.BOLD, 12);
+	BoldFont  = new Font("Helvetica", Font.BOLD, 20);
+	RulerFont = new Font("SansSerif", Font.PLAIN, 10);
 
 	/*
 	 * Now add my one object to the contentpane.
@@ -559,26 +567,28 @@ public class NodeSelect extends JApplet {
 		this.revalidate();
 	    }
 	    public void mousePressed(MouseEvent e) {
-		int button   = e.getButton();
-		int modifier = e.getModifiersEx();
-		int x        = e.getX() + xoff;
-		int y        = e.getY() - yoff;
-		Node node    = null;
+		int button     = e.getButton();
+		int modifier   = e.getModifiersEx();
+		int x          = e.getX() + xoff;
+		int y          = e.getY() - yoff;
+		PhysNode pnode = null;
 
 		System.out.println("Clicked on " + e.getX() + "," + e.getY());
 		System.out.println("Clicked on " + x + "," + y);
 
 		if (x > 0 && y > 0 && x <= width && y <= height)
-		    node = FindNode(this, (int)(x / scale), (int)(y / scale));
+		    pnode = (PhysNode)
+			FindNode(this, (int)(x / scale), (int)(y / scale));
 		
 		if (!e.isPopupTrigger()) {
-		    if (node != null) {
-			SelectNode(node, modifier);
+		    if (pnode != null) {
+			if (!pnode.allocated)
+			    SelectNode(pnode, modifier);
 			return;
 		    }
 		}
 		// Forward to outer event handler, including the node
-		selector.doPopupMenu(e, node);
+		selector.doPopupMenu(e, pnode);
 	    }
 	    public void mouseReleased(MouseEvent e) {
 		PhysMapPanel.mouseReleased(e);
@@ -688,7 +698,7 @@ public class NodeSelect extends JApplet {
 	    ListPanel.add(ToplistScroller);
 
 	    // add a label for the lower list box
-	    ListPanel.add(new JLabel("Selected Nodes"));
+	    ListPanel.add(new JLabel("Assigned Nodes"));
 
 	    // And add the lower listbox.
 	    ListPanel.add(BotlistScroller);
@@ -790,6 +800,9 @@ public class NodeSelect extends JApplet {
 		DefaultListModel model;
 		PhysNode	 pnode = (PhysNode) a.nextElement();
 
+		if (pnode.allocated)
+		    continue;
+
 		if (pnode.selected)
 		    model = (DefaultListModel) SelectList.getModel();
 		else
@@ -801,11 +814,33 @@ public class NodeSelect extends JApplet {
 	    }
 
 	    /*
-	     * Create a surrounding scroll pane.
+	     * We need to force the physmappanel to layout now, so we
+	     * figure out how big the ruler bars need to be. If we do not
+	     * do that, the rulers will be 0 sized, and really hard to see!
+	     */
+	    PhysMapPanel.getLayout().layoutContainer(PhysMapPanel);
+	    Dimension physmapdim =
+		PhysMapPanel.getLayout().minimumLayoutSize(PhysMapPanel);
+
+	    /*
+	     * Create a surrounding scroll pane.   
 	     */
 	    PhysMapScrollPane = new JScrollPane(PhysMapPanel);
 	    PhysMapScrollPane.setPreferredSize(new Dimension(mapwidth,
 							     mapheight));
+
+	    // Create the row and column headers (rulers, sortof).
+	    Ruler columnView = new Ruler(HORIZONTAL);
+	    Ruler rowView    = new Ruler(VERTICAL);
+
+	    // Make sure the rulers know how big they need to be.
+	    columnView.setPreferredWidth(physmapdim.width);
+	    rowView.setPreferredHeight(physmapdim.height);
+
+	    PhysMapScrollPane.setColumnHeaderView(columnView);
+	    PhysMapScrollPane.setRowHeaderView(rowView);
+
+	    // Now we can add the scrollpane.
 	    MapPanel.add(PhysMapScrollPane);
 
 	    // Add add our two inner panels to the outer panel
@@ -1487,11 +1522,23 @@ public class NodeSelect extends JApplet {
 
 		    map.rescale();
 		}
-		// Force everything to layout again before getSize().
+		// Force everything to layout again.
 		revalidate();
 		validate();
-		repaint();
 
+		// Tell rulers to recompute their size.
+		Ruler ruler =
+		    (Ruler) PhysMapScrollPane.getColumnHeader().getView();
+		ruler.reset();
+		
+		ruler =
+		    (Ruler) PhysMapScrollPane.getRowHeader().getView();
+		ruler.reset();
+
+		// Force everything to layout again.
+		revalidate();
+		validate();
+		    
 		/*
 		 * Okay scale P so that it moves (thereby keeping the
 		 * original position more or less centered). 
@@ -1543,6 +1590,118 @@ public class NodeSelect extends JApplet {
 		repaint();
 	    }
 	}
+
+	/*
+	 * This class and code comes from one of the examples on the Sun
+	 * Java site. 
+	 */
+	public class Ruler extends JComponent {
+	    private int SIZE       = 30;
+
+	    private int orientation;
+	    private int increment;
+	    private int units;
+
+	    public Ruler(int or) {
+		orientation = or;
+		// Tick every meter at any scale.
+		increment = (int) (pixels_per_meter * scale);
+		units = increment * 5;
+	    }
+	    public void reset () {
+		setsizes();
+		// Tick every meter at any scale.
+		increment = (int) (pixels_per_meter * scale);
+		units = increment * 5;
+	    }
+	    private void setsizes() {
+		int		width;
+		int		height;
+
+		if (orientation == HORIZONTAL) {
+		    width  = PhysMapPanel.getWidth();
+		    height = SIZE;
+		}
+		else {
+		    width  = SIZE;
+		    height = PhysMapPanel.getHeight();
+		}
+		System.out.println(orientation + ": " + width + "," + height);
+		setPreferredSize(new Dimension(width, height));
+	    }
+
+	    public int getIncrement() {
+		return increment;
+	    }
+
+	    public void setPreferredHeight(int ph) {
+		setPreferredSize(new Dimension(SIZE, ph));
+	    }
+	    
+	    public void setPreferredWidth(int pw) {
+		setPreferredSize(new Dimension(pw, SIZE));
+	    }
+	    
+	    protected void paintComponent(Graphics g) {
+		Rectangle drawHere = g.getClipBounds();
+		//System.out.println(drawHere);
+
+		// Fill clipping area with dirty brown/orange.
+		g.setColor(new Color(230, 163, 4));
+		g.fillRect(drawHere.x, drawHere.y,
+			   drawHere.width, drawHere.height);
+
+		// Do the ruler labels in a small font that's black.
+		g.setFont(RulerFont);
+		g.setColor(Color.black);
+
+		// Some vars we need.
+		int end        = 0;
+		int start      = 0;
+		int tickLength = 0;
+		String label   = null;
+
+		// Use clipping bounds to calculate first and last locations.
+		if (orientation == HORIZONTAL) {
+		    start = (drawHere.x / increment) * increment;
+		    end = (((drawHere.x + drawHere.width) / increment) + 1)
+			* increment;
+		}
+		else {
+		    start = (drawHere.y / increment) * increment;
+		    end = (((drawHere.y + drawHere.height) / increment) + 1)
+			* increment;
+		}
+
+		//System.out.println("Rulers Painting(" + orientation + "): " +
+		//		       start + "," + end);
+
+		// Draw ticks
+		for (int i = start; i < end; i += increment) {
+		    if (i != 0 && i % units == 0)  {
+			tickLength = 10;
+			label = Integer.toString(i/increment);
+		    }
+		    else {
+			tickLength = 7;
+			label = null;
+		    }
+		    
+		    if (tickLength != 0) {
+			if (orientation == HORIZONTAL) {
+			    g.drawLine(i, SIZE-1, i, SIZE-tickLength-1);
+			    if (label != null)
+				g.drawString(label, i-4, 15);
+			}
+			else {
+			    g.drawLine(SIZE-1, i, SIZE-tickLength-1, i);
+			    if (label != null)
+				g.drawString(label, 2, i+5);
+			}
+		    }
+		}
+	    }
+	}
     }
 
     /*

vis/floormap.in

@@ -334,13 +334,13 @@ elsif (@ARGV == 1) {
 my $path_col = ($scale_arg == 0 ? "thumb_path" : "image_path");
 my $db_scale = max($scale_arg, 1);
 # Nozoom signals a call by robotmap.  Don't use robots "building" otherwise.
-my $robo_bldg = "b.building ". ($nozoom ? "" : "not "). "like '%ROBOTS%'";
+my $robo_bldg = ($nozoom ? "" : "b.building not like '%ROBOTS%' and ");
 my $query_result =
     DBQueryFatal("select b.building,b.title,f.floor,f.$path_col,".
 		 "f.pixels_per_meter ".
 		 "   from buildings as b ".
 		 "left join floorimages as f on f.building=b.building ".
-		 "where $robo_bldg and f.scale=$db_scale");
+		 "where $robo_bldg f.scale=$db_scale");
 
 if (!$query_result->numrows) {
     die("*** $0:\n".

vis/render.in

@@ -2,7 +2,7 @@
 
 #
 # EMULAB-COPYRIGHT
-# Copyright (c) 2000-2004 University of Utah and the Flux Group.
+# Copyright (c) 2000-2005 University of Utah and the Flux Group.
 # All rights reserved.
 #
 
@@ -126,13 +126,13 @@ if (!(defined $min_x)) {
     
     # adjust each node's position so topleftmost node is at (60,60) * $zoom.
     foreach $i (keys %nodes) {
-	$nodes{$i}{"x"} = ($nodes{$i}{"x"} - $min_x + 60) * $zoom;
-	$nodes{$i}{"y"} = ($nodes{$i}{"y"} - $min_y + 60) * $zoom;
+	$nodes{$i}{"x"} = (($nodes{$i}{"x"} - $min_x) * $zoom) + 60;
+	$nodes{$i}{"y"} = (($nodes{$i}{"y"} - $min_y) * $zoom) + 60;
     }
     
     # adjust max x,y appropriately.
-    $max_x = ($max_x - $min_x + 120) * $zoom;
-    $max_y = ($max_y - $min_y + 120) * $zoom;
+    $max_x = (($max_x - $min_x) * $zoom) + 120;
+    $max_y = (($max_y - $min_y) * $zoom) + 120;
 }
 
 # get vlan list.

www/floormap.php3

 <?php
 #
 # EMULAB-COPYRIGHT
-# Copyright (c) 2004 University of Utah and the Flux Group.
+# Copyright (c) 2004, 2005 University of Utah and the Flux Group.
 # All rights reserved.
 #
 include("defs.php3");
@@ -440,6 +440,9 @@ echo "  Click on the dots below to see information about the node.\n";
 echo "  <br>\n";
 echo "  Click elsewhere on the map to set the center point for a zoomed-in view.\n";
 echo "  <br>\n";
+echo "  Check out the nifty new <a href=robotrack/selector.php3?building=MEB>";
+echo "Java Applet</a> for selecting wireless nodes\n";
+echo "  <br>\n";
 # Couldn't get JavaScript submit on checkbox to be portable to IE with map in form.
 # Just use image buttons to show and invert the checkbox state.  That works.
 if ($ghost) {

www/robotrack/flooricon.php3

+<?php
+#
+# EMULAB-COPYRIGHT
+# Copyright (c) 2000-2005 University of Utah and the Flux Group.
+# All rights reserved.
+#
+chdir("..");
+include("defs.php3");
+
+#
+# Only known and logged in users.
+#
+$uid = GETLOGIN();
+LOGGEDINORDIE($uid);
+
+#
+# Verify page arguments. Allow user to optionally specify building/floor.
+#
+if (isset($building) && $building != "") {
+    # Sanitize for the shell.
+    if (!preg_match("/^[-\w]+$/", $building)) {
+	PAGEARGERROR("Invalid building argument.");
+    }
+}
+else {
+    PAGEARGERROR("Must supply a building.");
+}
+
+if (isset($floor) && $floor != "") {
+    if (!preg_match("/^[-\w]+$/", $floor)) {
+	PAGEARGERROR("Invalid floor argument.");
+    }
+}
+else {
+    PAGEARGERROR("Must supply a floor.");
+}
+
+#
+# Make sure it exists in the DB.
+#
+$query_result =
+    DBQueryFatal("select pixels_per_meter from floorimages ".
+		 "where building='$building' and floor='$floor'");
+if (!mysql_num_rows($query_result)) {
+    PAGEARGERROR("No such building/floor $building/$floor");
+}
+
+#
+# Need cleanup "handler" to make sure temp files get deleted! 
+#
+function CLEANUP()
+{
+    global $prefix, $uid;
+
+    #
+    # The backend script (vis/floormap.in) removes all the temp files
+    # with the -c option. Yucky, but file perms and owners make this
+    # the easiest way to do it.
+    # 
+    if (isset($prefix)) {
+	SUEXEC($uid, "nobody", "webfloormap -o $prefix -k ");
+	# This file does belong to the web server.
+	unlink($prefix);
+    }
+    exit();
+}
+register_shutdown_function("CLEANUP");
+
+#
+# Create a tempfile to use as a unique prefix; it is not actually used but
+# serves the same purpose (The script uses ${prefix}.jpg and ${prefix}.map .)
+# 
+$prefix = tempnam("/tmp", "floormap");
+
+#
+# Build the image.
+# 
+$perl_args = "-o $prefix -t -z -n -x -v -y -f $floor $building";
+
+$retval = SUEXEC($uid, "nobody", "webfloormap $perl_args",
+		 SUEXEC_ACTION_IGNORE);
+
+if ($retval) {
+    SUEXECERROR(SUEXEC_ACTION_USERERROR);
+    # Never returns.
+    die("");
+}
+
+#
+# Now spit it back.
+# 
+if (($fp = fopen("${prefix}.jpg", "r"))) {
+    header("Content-type: image/jpg");
+    fpassthru($fp);
+}
+else {
+    # No Data. Spit back a stub image.
+    header("Content-type: image/gif");
+    readfile("coming-soon-thumb.gif");
+}
+?>

www/robotrack/nodeinfo.php3

@@ -72,8 +72,18 @@ while ($row = mysql_fetch_array($query_result)) {
     $or     = $row["orientation"];
     $mobile = ($class == "robot" ? 1 : 0);
     # In meters.
-    $size   = ($class == "robot" ? 0.27 : 0.07);
-    $radius = ($class == "robot" ? 0.18 : 0.04);
+    if ($class == "robot") {
+	$size   = 0.27;
+	$radius = 0.18;
+    }
+    elseif ($class == "pc" || $class == "pcwireless") {
+	$size   = 1.0;
+	$radius = 0.5;
+    }
+    else {
+	$size   = 0.07;
+	$radius = 0.04;
+    }
     $alloc  = (isset($pid) ? 1 : 0);
 
     if (!isset($vname))

www/robotrack/selector.php3

@@ -21,52 +21,59 @@ if (isset($building) && $building != "") {
 	PAGEARGERROR("Invalid building argument.");
     }
     # Optional floor argument. Sanitize for the shell.
-    if (isset($floor) && !preg_match("/^[-\w]+$/", $floor)) {
-	PAGEARGERROR("Invalid floor argument.");
+    if (isset($floor) && $floor != "") {
+	if (!preg_match("/^[-\w]+$/", $floor)) {
+	    PAGEARGERROR("Invalid floor argument.");
+	}
     }
+    else
+	unset($floor);
 }
 else {
     $building = "MEB-ROBOTS";
     $floor    = 4;
 }
 
-if (!isset($pid) ||
-    strcmp($pid, "") == 0) {
-    PAGEARGERROR("You must provide a Project ID.");
-}
-
-if (!isset($eid) ||
-    strcmp($eid, "") == 0) {
-    PAGEARGERROR("You must provide an Experiment ID.");
-}
-
-if (!preg_match("/^[-\w]+$/", $pid)) {
-    PAGEARGERROR("Invalid pid argument.");
-}
-if (!preg_match("/^[-\w]+$/", $eid)) {
-    PAGEARGERROR("Invalid eid argument.");
+if (isset($pid) && $pid != "" && isset($eid) && $eid != "") {
+    if (!preg_match("/^[-\w]+$/", $pid)) {
+	PAGEARGERROR("Invalid pid argument.");
+    }
+    if (!preg_match("/^[-\w]+$/", $eid)) {
+	PAGEARGERROR("Invalid eid argument.");
+    }
+    #
+    # Check to make sure this is a valid PID/EID tuple.
+    #
+    if (! TBValidExperiment($pid, $eid)) {
+	USERERROR("Experiment $pid/$eid is not a valid experiment.", 1);
+    }
 }
-
-#
-# Check to make sure this is a valid PID/EID tuple.
-#
-if (! TBValidExperiment($pid, $eid)) {
-  USERERROR("Experiment $pid/$eid is not a valid experiment.", 1);
+else {
+    unset($pid);
+    unset($eid);
 }
-$ppm      = 1;
 
 #
-# Grab pixel_per_meters for above map.
+# Grab map info. Might be more then a single floor of course. 
 #
-$query_result =
-    DBQueryFatal("select pixels_per_meter from floorimages ".
-		 "where building='$building' and floor='$floor'");
-if (mysql_num_rows($query_result)) {
-    $row = mysql_fetch_array($query_result);
-    $ppm = $row["pixels_per_meter"];
+if (isset($floor)) {
+    $query_result =
+	DBQueryFatal("select floor,pixels_per_meter from floorimages ".
+		     "where building='$building' and scale=1 and ".
+		     "floor='$floor'");
 }
 else {
-    USERERROR("No such building/floor $building/$floor", 1);
+    $query_result =
+	DBQueryFatal("select distinct fl.floor,fl.pixels_per_meter ".
+		     "   from location_info as loc ".
+		     "left join floorimages as fl on ".
+		     "  loc.building=fl.building and loc.floor=fl.floor ".
+		     "where fl.building='$building' and fl.scale=1 ".
+		     "order by floor");
+}
+
+if (! mysql_num_rows($query_result)) {
+    USERERROR("No such building/floor", 1);
 }
 
 #
@@ -78,83 +85,94 @@ echo "<table cellspacing=5 cellpadding=5 border=0 class=\"stealth\">
          <table>
            <tr><th colspan=2>Legend</th></tr>
            <tr>
-             <td><img src='/autostatus-icons/redball.gif' alt=down></td>
-             <td nowrap=1>Dead Node</td>
+             <td><img src='/autostatus-icons/redball.gif' alt=allocated></td>
+             <td nowrap=1>Unavailable Node</td>
            </tr>
            <tr>
-             <td><img src='/autostatus-icons/greenball.gif' alt=down></td>
+             <td><img src='/autostatus-icons/greenball.gif'
+                     alt=unassigned></td>
              <td nowrap=1>Unassigned Node</td>
            </tr>
            <tr>
-             <td><img src='/autostatus-icons/yellowball.gif' alt=down></td>
+             <td><img src='/autostatus-icons/blueball.gif' alt=assigned></td>
              <td nowrap=1>Assigned Node</td>
            </tr>
+           <tr>
+             <td><img src='/autostatus-icons/yellowball.gif' alt=selected></td>
+             <td nowrap=1>Selected Node</td>
+           </tr>
          </table>
        </td>
-       <td class=stealth>This applet allows you to assign your virual nodes
-                         to physical nodes. See below for instructions.
+       <td class=stealth>This applet allows you to select physical nodes
+                         for your experiment. See below for instructions.
                          
         </td>
       </tr>
       </table><hr>\n";
 
-#
-# Create a tempfile to use as a unique prefix; it is not actually used but
-# serves the same purpose (The script uses ${prefix}.jpg and ${prefix}.map .)
-# 
-$prefix = tempnam("/tmp", "floormap");
-
-#
-# Get the unique part to send back.
-#
-if (!preg_match("/^\/tmp\/([-\w]+)$/", $prefix, $matches)) {
-    TBERROR("Bad tempnam: $prefix", 1);
-}
-$uniqueid = $matches[1];
-
-$perl_args = "-o $prefix -t -z -n -x -v -y -f $floor $building";
-
-$retval = SUEXEC($uid, "nobody", "webfloormap $perl_args",
-		 SUEXEC_ACTION_IGNORE);
-
-if ($retval) {
-    SUEXECERROR(SUEXEC_ACTION_USERERROR);
-    # Never returns.
-    die("");
-}
-
-$auth    = $HTTP_COOKIE_VARS[$TBAUTHCOOKIE];
-$baseurl = "../floormap_aux.php3?prefix=$uniqueid";
+$auth       = $HTTP_COOKIE_VARS[$TBAUTHCOOKIE];
+$floorcount = mysql_num_rows($query_result);
+$ppm        = 1;
+$index      = 0;
 
 echo "<applet name='selector' code='NodeSelect.class'
-              archive='selector.jar'
-              width='1025' height='1050'
+              archive='NodeSelect.jar'
+              width='1025' height='700'
               alt='You need java to run this applet'>
-            <param name='floorurl' value='$baseurl'>
             <param name='uid' value='$uid'>
             <param name='auth' value='$auth'>
-            <param name='ppm' value='$ppm'>
-            <param name='building' value='$building'>
-            <param name='floor' value='$floor'>
-            <param name='pid' value='$pid'>
-            <param name='eid' value='$eid'>
-          </applet>\n";
+            <param name='building' value='$building'>\n";
+echo "      <param name='floorcount' value='$floorcount'>";
+while (($row = mysql_fetch_array($query_result))) {
+    $floor = $row['floor'];
+    $ppm   = $row['pixels_per_meter'];
+    
+    echo "  <param name='floor_${index}' value='$floor'>\n";
+    $index++;
+}
+echo "      <param name='ppm' value='$ppm'>";
+if (isset($pid)) {
+    echo "  <param name='pid' value='$pid'>
+            <param name='eid' value='$eid'>\n";
+}
+echo "</applet>\n";
+
 
 echo "<br>
-     <blockquote><blockquote>
+     <blockquote>
      <center>
      <h3>Using the Node Selector Applet</h3>
      </center>
      <ul>
-     <li> Left click over a node brings up a menu of virtual nodes. Select a
-          virtual node from the menu to assign to the physical node.
-     <li> Right click over a node brings up a menu that allows you to get
-          information about the physical node, or cancel the current
-          assignment.
-     <li> Left click over the background image brings up a menu to submit your
-          assignments.
+     <li> Nodes that are currently available for use are in the upper
+          list box.
+     <li> Nodes that have been selected for use (assigned) are in the
+          lower list box.
+     <li> Highlight nodes by selecting them in list boxes or clicking on them
+          in the maps.
+          Shift-Click does the usual thing; adds to an existing selection.
+     <li> Right click over a node will bring up a node context menu.
+     <li> Right click anyplace else brings up the root context menu.
+     <li> Move highlighted nodes between the upper and lower lists by choosing
+          the appropriate option in either context menu.
+     <li> Once you have your nodes assigned (the lower list box), use the
+          'Create NS File' to menu option to popup an NS fragment that you
+          can plug into an existing experiment.
+     </ul>
+     Notes:<br>
+     <ul>
+       <li> Middle click repositions the map so that the point under
+            the mouse moves to the center.
+       <li> Left click and drag in the map scrolls the map around.
+       <li> Zoom in and out using the options on the Root Context Menu.
+       <li> Return the map to the most recent centering position with the
+            <em>Recenter</em> option.
+       <li> Reset the zoom and center to initial startup conditions with
+            the <em>Reset</em> option.
+       <li> The 'rulers' are in 1 meter increments and are intended to provide
+            scale information; they are not relative to a specific origin. 
      </ul>
-     <blockquote><blockquote>\n";
+     </blockquote>\n";
 
 PAGEFOOTER();
 ?>

www/robotrack/virtinfo.php3

@@ -68,18 +68,22 @@ register_shutdown_function("SPEWCLEANUP");
 
 # Get the virtual node info
 $query_result =
-    DBQueryFatal("select vname,fixed from virt_nodes ".
-		 "where pid='$pid' and eid='$eid' ".
-		 "order by vname");
+    DBQueryFatal("select v.vname,fixed,vis.x,vis.y from virt_nodes as v ".
+		 "left join vis_nodes as vis on ".
+		 "     vis.pid=v.pid and vis.eid=v.eid and vis.vname=v.vname ".
+		 "where v.pid='$pid' and v.eid='$eid' ".
+		 "order by v.vname");
 
 while ($row = mysql_fetch_array($query_result)) {
     $vname  = $row["vname"];
     $fixed  = $row["fixed"];
+    $x      = (int) $row["x"];