changeset 3847:db5fea7fbf76

7027692: /applets/WireFrame demo needs to be improved Reviewed-by: alexp
author mrkam
date Fri, 25 Mar 2011 17:59:02 +0100
parents 489a9669a344
children e72a348f25c9
files src/share/demo/applets/WireFrame/Matrix3D.java src/share/demo/applets/WireFrame/ThreeD.java src/share/demo/applets/WireFrame/example1.html src/share/demo/applets/WireFrame/example2.html src/share/demo/applets/WireFrame/example3.html src/share/demo/applets/WireFrame/example4.html
diffstat 6 files changed, 252 insertions(+), 195 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/demo/applets/WireFrame/Matrix3D.java	Fri Mar 25 17:57:57 2011 +0100
+++ b/src/share/demo/applets/WireFrame/Matrix3D.java	Fri Mar 25 17:59:02 2011 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1995, 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1995, 2011, Oracle and/or its affiliates. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -29,22 +29,23 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-/*
- */
 
 /** A fairly conventional 3D matrix object that can transform sets of
-    3D points and perform a variety of manipulations on the transform */
+3D points and perform a variety of manipulations on the transform */
 class Matrix3D {
+
     float xx, xy, xz, xo;
     float yx, yy, yz, yo;
     float zx, zy, zz, zo;
     static final double pi = 3.14159265;
+
     /** Create a new unit matrix */
-    Matrix3D () {
+    Matrix3D() {
         xx = 1.0f;
         yy = 1.0f;
         zz = 1.0f;
     }
+
     /** Scale by f in all dimensions */
     void scale(float f) {
         xx *= f;
@@ -60,6 +61,7 @@
         zz *= f;
         zo *= f;
     }
+
     /** Scale along each axis independently */
     void scale(float xf, float yf, float zf) {
         xx *= xf;
@@ -75,12 +77,14 @@
         zz *= zf;
         zo *= zf;
     }
+
     /** Translate the origin */
     void translate(float x, float y, float z) {
         xo += x;
         yo += y;
         zo += z;
     }
+
     /** rotate theta degrees about the y axis */
     void yrot(double theta) {
         theta *= (pi / 180);
@@ -106,6 +110,7 @@
         zy = Nzy;
         zz = Nzz;
     }
+
     /** rotate theta degrees about the x axis */
     void xrot(double theta) {
         theta *= (pi / 180);
@@ -131,6 +136,7 @@
         zy = Nzy;
         zz = Nzz;
     }
+
     /** rotate theta degrees about the z axis */
     void zrot(double theta) {
         theta *= (pi / 180);
@@ -156,6 +162,7 @@
         xy = Nxy;
         xz = Nxz;
     }
+
     /** Multiply this matrix by a second: M = M*R */
     void mult(Matrix3D rhs) {
         float lxx = xx * rhs.xx + yx * rhs.xy + zx * rhs.xz;
@@ -204,10 +211,11 @@
         zy = 0;
         zz = 1;
     }
+
     /** Transform nvert points from v into tv.  v contains the input
-        coordinates in floating point.  Three successive entries in
-        the array constitute a point.  tv ends up holding the transformed
-        points as integers; three successive entries per point */
+    coordinates in floating point.  Three successive entries in
+    the array constitute a point.  tv ends up holding the transformed
+    points as integers; three successive entries per point */
     void transform(float v[], int tv[], int nvert) {
         float lxx = xx, lxy = xy, lxz = xz, lxo = xo;
         float lyx = yx, lyy = yy, lyz = yz, lyo = yo;
@@ -216,11 +224,13 @@
             float x = v[i];
             float y = v[i + 1];
             float z = v[i + 2];
-            tv[i    ] = (int) (x * lxx + y * lxy + z * lxz + lxo);
+            tv[i] = (int) (x * lxx + y * lxy + z * lxz + lxo);
             tv[i + 1] = (int) (x * lyx + y * lyy + z * lyz + lyo);
             tv[i + 2] = (int) (x * lzx + y * lzy + z * lzz + lzo);
         }
     }
+
+    @Override
     public String toString() {
         return ("[" + xo + "," + xx + "," + xy + "," + xz + ";"
                 + yo + "," + yx + "," + yy + "," + yz + ";"
--- a/src/share/demo/applets/WireFrame/ThreeD.java	Fri Mar 25 17:57:57 2011 +0100
+++ b/src/share/demo/applets/WireFrame/ThreeD.java	Fri Mar 25 17:59:02 2011 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1995, 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1995, 2011, Oracle and/or its affiliates. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -29,28 +29,29 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-/*
- */
-
-/* A set of classes to parse, represent and display 3D wireframe models
-   represented in Wavefront .obj format. */
 
 import java.applet.Applet;
 import java.awt.Graphics;
 import java.awt.Color;
-import java.awt.Event;
 import java.awt.event.*;
 import java.io.*;
 import java.net.URL;
 
+
+/* A set of classes to parse, represent and display 3D wireframe models
+represented in Wavefront .obj format. */
+@SuppressWarnings("serial")
 class FileFormatException extends Exception {
+
     public FileFormatException(String s) {
         super(s);
     }
 }
 
+
 /** The representation of a 3D model */
-class Model3D {
+final class Model3D {
+
     float vert[];
     int tvert[];
     int nvert, maxvert;
@@ -58,78 +59,90 @@
     int ncon, maxcon;
     boolean transformed;
     Matrix3D mat;
-
     float xmin, xmax, ymin, ymax, zmin, zmax;
 
-    Model3D () {
-        mat = new Matrix3D ();
+    Model3D() {
+        mat = new Matrix3D();
         mat.xrot(20);
         mat.yrot(30);
     }
+
     /** Create a 3D model by parsing an input stream */
-    Model3D (InputStream is) throws IOException, FileFormatException {
-      this();
-      StreamTokenizer st = new StreamTokenizer(
-              new BufferedReader(new InputStreamReader(is, "UTF-8")));
-      st.eolIsSignificant(true);
-      st.commentChar('#');
-    scan:
+    Model3D(InputStream is) throws IOException, FileFormatException {
+        this();
+        StreamTokenizer st = new StreamTokenizer(
+                new BufferedReader(new InputStreamReader(is, "UTF-8")));
+        st.eolIsSignificant(true);
+        st.commentChar('#');
+        scan:
         while (true) {
             switch (st.nextToken()) {
-              default:
-                break scan;
-              case StreamTokenizer.TT_EOL:
-                break;
-              case StreamTokenizer.TT_WORD:
-                if ("v".equals(st.sval)) {
-                    double x = 0, y = 0, z = 0;
-                    if (st.nextToken() == StreamTokenizer.TT_NUMBER) {
-                        x = st.nval;
+                default:
+                    break scan;
+                case StreamTokenizer.TT_EOL:
+                    break;
+                case StreamTokenizer.TT_WORD:
+                    if ("v".equals(st.sval)) {
+                        double x = 0, y = 0, z = 0;
                         if (st.nextToken() == StreamTokenizer.TT_NUMBER) {
-                            y = st.nval;
-                            if (st.nextToken() == StreamTokenizer.TT_NUMBER)
-                                z = st.nval;
+                            x = st.nval;
+                            if (st.nextToken() == StreamTokenizer.TT_NUMBER) {
+                                y = st.nval;
+                                if (st.nextToken() == StreamTokenizer.TT_NUMBER) {
+                                    z = st.nval;
+                                }
+                            }
+                        }
+                        addVert((float) x, (float) y, (float) z);
+                        while (st.ttype != StreamTokenizer.TT_EOL && st.ttype
+                                != StreamTokenizer.TT_EOF) {
+                            st.nextToken();
+                        }
+                    } else if ("f".equals(st.sval) || "fo".equals(st.sval) || "l".
+                            equals(st.sval)) {
+                        int start = -1;
+                        int prev = -1;
+                        int n = -1;
+                        while (true) {
+                            if (st.nextToken() == StreamTokenizer.TT_NUMBER) {
+                                n = (int) st.nval;
+                                if (prev >= 0) {
+                                    add(prev - 1, n - 1);
+                                }
+                                if (start < 0) {
+                                    start = n;
+                                }
+                                prev = n;
+                            } else if (st.ttype == '/') {
+                                st.nextToken();
+                            } else {
+                                break;
+                            }
+                        }
+                        if (start >= 0) {
+                            add(start - 1, prev - 1);
+                        }
+                        if (st.ttype != StreamTokenizer.TT_EOL) {
+                            break scan;
+                        }
+                    } else {
+                        while (st.nextToken() != StreamTokenizer.TT_EOL
+                                && st.ttype != StreamTokenizer.TT_EOF) {
+                            // no-op
                         }
                     }
-                    addVert((float) x, (float) y, (float) z);
-                    while (st.ttype != StreamTokenizer.TT_EOL &&
-                            st.ttype != StreamTokenizer.TT_EOF)
-                        st.nextToken();
-                } else if ("f".equals(st.sval) || "fo".equals(st.sval) || "l".equals(st.sval)) {
-                    int start = -1;
-                    int prev = -1;
-                    int n = -1;
-                    while (true)
-                        if (st.nextToken() == StreamTokenizer.TT_NUMBER) {
-                            n = (int) st.nval;
-                            if (prev >= 0)
-                                add(prev - 1, n - 1);
-                            if (start < 0)
-                                start = n;
-                            prev = n;
-                        } else if (st.ttype == '/')
-                            st.nextToken();
-                        else
-                            break;
-                    if (start >= 0)
-                        add(start - 1, prev - 1);
-                    if (st.ttype != StreamTokenizer.TT_EOL)
-                        break scan;
-                } else {
-                    while (st.nextToken() != StreamTokenizer.TT_EOL
-                            && st.ttype != StreamTokenizer.TT_EOF);
-                }
             }
         }
         is.close();
-        if (st.ttype != StreamTokenizer.TT_EOF)
+        if (st.ttype != StreamTokenizer.TT_EOF) {
             throw new FileFormatException(st.toString());
+        }
     }
 
     /** Add a vertex to this model */
     int addVert(float x, float y, float z) {
         int i = nvert;
-        if (i >= maxvert)
+        if (i >= maxvert) {
             if (vert == null) {
                 maxvert = 100;
                 vert = new float[maxvert * 3];
@@ -139,18 +152,21 @@
                 System.arraycopy(vert, 0, nv, 0, vert.length);
                 vert = nv;
             }
+        }
         i *= 3;
         vert[i] = x;
         vert[i + 1] = y;
         vert[i + 2] = z;
         return nvert++;
     }
+
     /** Add a line from vertex p1 to vertex p2 */
     void add(int p1, int p2) {
         int i = ncon;
-        if (p1 >= nvert || p2 >= nvert)
+        if (p1 >= nvert || p2 >= nvert) {
             return;
-        if (i >= maxcon)
+        }
+        if (i >= maxcon) {
             if (con == null) {
                 maxcon = 100;
                 con = new int[maxcon];
@@ -160,6 +176,7 @@
                 System.arraycopy(con, 0, nv, 0, con.length);
                 con = nv;
             }
+        }
         if (p1 > p2) {
             int t = p1;
             p1 = p2;
@@ -168,79 +185,79 @@
         con[i] = (p1 << 16) | p2;
         ncon = i + 1;
     }
+
     /** Transform all the points in this model */
     void transform() {
-        if (transformed || nvert <= 0)
+        if (transformed || nvert <= 0) {
             return;
-        if (tvert == null || tvert.length < nvert * 3)
-            tvert = new int[nvert*3];
+        }
+        if (tvert == null || tvert.length < nvert * 3) {
+            tvert = new int[nvert * 3];
+        }
         mat.transform(vert, tvert, nvert);
         transformed = true;
     }
 
-   /* Quick Sort implementation
-    */
-   private void quickSort(int a[], int left, int right)
-   {
-      int leftIndex = left;
-      int rightIndex = right;
-      int partionElement;
-      if ( right > left)
-      {
+    /* Quick Sort implementation
+     */
+    private void quickSort(int a[], int left, int right) {
+        int leftIndex = left;
+        int rightIndex = right;
+        int partionElement;
+        if (right > left) {
 
-         /* Arbitrarily establishing partition element as the midpoint of
-          * the array.
-          */
-         partionElement = a[ ( left + right ) / 2 ];
+            /* Arbitrarily establishing partition element as the midpoint of
+             * the array.
+             */
+            partionElement = a[(left + right) / 2];
 
-         // loop through the array until indices cross
-         while( leftIndex <= rightIndex )
-         {
-            /* find the first element that is greater than or equal to
-             * the partionElement starting from the leftIndex.
+            // loop through the array until indices cross
+            while (leftIndex <= rightIndex) {
+                /* find the first element that is greater than or equal to
+                 * the partionElement starting from the leftIndex.
+                 */
+                while ((leftIndex < right) && (a[leftIndex] < partionElement)) {
+                    ++leftIndex;
+                }
+
+                /* find an element that is smaller than or equal to
+                 * the partionElement starting from the rightIndex.
+                 */
+                while ((rightIndex > left) && (a[rightIndex] > partionElement)) {
+                    --rightIndex;
+                }
+
+                // if the indexes have not crossed, swap
+                if (leftIndex <= rightIndex) {
+                    swap(a, leftIndex, rightIndex);
+                    ++leftIndex;
+                    --rightIndex;
+                }
+            }
+
+            /* If the right index has not reached the left side of array
+             * must now sort the left partition.
              */
-            while( ( leftIndex < right ) && ( a[leftIndex] < partionElement ) )
-               ++leftIndex;
+            if (left < rightIndex) {
+                quickSort(a, left, rightIndex);
+            }
 
-            /* find an element that is smaller than or equal to
-             * the partionElement starting from the rightIndex.
+            /* If the left index has not reached the right side of array
+             * must now sort the right partition.
              */
-            while( ( rightIndex > left ) &&
-                   ( a[rightIndex] > partionElement ) )
-               --rightIndex;
+            if (leftIndex < right) {
+                quickSort(a, leftIndex, right);
+            }
 
-            // if the indexes have not crossed, swap
-            if( leftIndex <= rightIndex )
-            {
-               swap(a, leftIndex, rightIndex);
-               ++leftIndex;
-               --rightIndex;
-            }
-         }
+        }
+    }
 
-         /* If the right index has not reached the left side of array
-          * must now sort the left partition.
-          */
-         if( left < rightIndex )
-            quickSort( a, left, rightIndex );
-
-         /* If the left index has not reached the right side of array
-          * must now sort the right partition.
-          */
-         if( leftIndex < right )
-            quickSort( a, leftIndex, right );
-
-      }
-   }
-
-   private void swap(int a[], int i, int j)
-   {
-      int T;
-      T = a[i];
-      a[i] = a[j];
-      a[j] = T;
-   }
-
+    private void swap(int a[], int i, int j) {
+        int T;
+        T = a[i];
+        a[i] = a[j];
+        a[j] = T;
+    }
 
     /** eliminate duplicate lines */
     void compress() {
@@ -259,21 +276,21 @@
         }
         ncon = d;
     }
-
     static Color gr[];
 
     /** Paint this model to a graphics context.  It uses the matrix associated
-        with this model to map from model space to screen space.
-        The next version of the browser should have double buffering,
-        which will make this *much* nicer */
+    with this model to map from model space to screen space.
+    The next version of the browser should have double buffering,
+    which will make this *much* nicer */
     void paint(Graphics g) {
-        if (vert == null || nvert <= 0)
+        if (vert == null || nvert <= 0) {
             return;
+        }
         transform();
         if (gr == null) {
             gr = new Color[16];
             for (int i = 0; i < 16; i++) {
-                int grey = (int) (170*(1-Math.pow(i/15.0, 2.3)));
+                int grey = (int) (170 * (1 - Math.pow(i / 15.0, 2.3)));
                 gr[i] = new Color(grey, grey, grey);
             }
         }
@@ -281,151 +298,181 @@
         int lim = ncon;
         int c[] = con;
         int v[] = tvert;
-        if (lim <= 0 || nvert <= 0)
+        if (lim <= 0 || nvert <= 0) {
             return;
+        }
         for (int i = 0; i < lim; i++) {
             int T = c[i];
             int p1 = ((T >> 16) & 0xFFFF) * 3;
             int p2 = (T & 0xFFFF) * 3;
             int grey = v[p1 + 2] + v[p2 + 2];
-            if (grey < 0)
+            if (grey < 0) {
                 grey = 0;
-            if (grey > 15)
+            }
+            if (grey > 15) {
                 grey = 15;
+            }
             if (grey != lg) {
                 lg = grey;
                 g.setColor(gr[grey]);
             }
             g.drawLine(v[p1], v[p1 + 1],
-                       v[p2], v[p2 + 1]);
+                    v[p2], v[p2 + 1]);
         }
     }
 
     /** Find the bounding box of this model */
     void findBB() {
-        if (nvert <= 0)
+        if (nvert <= 0) {
             return;
+        }
         float v[] = vert;
-        float xmin = v[0], xmax = xmin;
-        float ymin = v[1], ymax = ymin;
-        float zmin = v[2], zmax = zmin;
+        float _xmin = v[0], _xmax = _xmin;
+        float _ymin = v[1], _ymax = _ymin;
+        float _zmin = v[2], _zmax = _zmin;
         for (int i = nvert * 3; (i -= 3) > 0;) {
             float x = v[i];
-            if (x < xmin)
-                xmin = x;
-            if (x > xmax)
-                xmax = x;
+            if (x < _xmin) {
+                _xmin = x;
+            }
+            if (x > _xmax) {
+                _xmax = x;
+            }
             float y = v[i + 1];
-            if (y < ymin)
-                ymin = y;
-            if (y > ymax)
-                ymax = y;
+            if (y < _ymin) {
+                _ymin = y;
+            }
+            if (y > _ymax) {
+                _ymax = y;
+            }
             float z = v[i + 2];
-            if (z < zmin)
-                zmin = z;
-            if (z > zmax)
-                zmax = z;
+            if (z < _zmin) {
+                _zmin = z;
+            }
+            if (z > _zmax) {
+                _zmax = z;
+            }
         }
-        this.xmax = xmax;
-        this.xmin = xmin;
-        this.ymax = ymax;
-        this.ymin = ymin;
-        this.zmax = zmax;
-        this.zmin = zmin;
+        this.xmax = _xmax;
+        this.xmin = _xmin;
+        this.ymax = _ymax;
+        this.ymin = _ymin;
+        this.zmax = _zmax;
+        this.zmin = _zmin;
     }
 }
 
+
 /** An applet to put a 3D model into a page */
+@SuppressWarnings("serial")
 public class ThreeD extends Applet
-  implements Runnable, MouseListener, MouseMotionListener {
+        implements Runnable, MouseListener, MouseMotionListener {
+
     Model3D md;
     boolean painted = true;
     float xfac;
     int prevx, prevy;
-    float xtheta, ytheta;
     float scalefudge = 1;
     Matrix3D amat = new Matrix3D(), tmat = new Matrix3D();
     String mdname = null;
     String message = null;
 
+    @Override
     public void init() {
         mdname = getParameter("model");
         try {
             scalefudge = Float.valueOf(getParameter("scale")).floatValue();
-        }catch(Exception e){};
+        } catch (Exception ignored) {
+            // fall back to default scalefudge = 1
+        }
         amat.yrot(20);
         amat.xrot(20);
-        if (mdname == null)
+        if (mdname == null) {
             mdname = "model.obj";
+        }
         resize(getSize().width <= 20 ? 400 : getSize().width,
-               getSize().height <= 20 ? 400 : getSize().height);
+                getSize().height <= 20 ? 400 : getSize().height);
         addMouseListener(this);
         addMouseMotionListener(this);
     }
 
+    @Override
     public void destroy() {
         removeMouseListener(this);
         removeMouseMotionListener(this);
     }
 
+    @Override
     public void run() {
         InputStream is = null;
         try {
             Thread.currentThread().setPriority(Thread.MIN_PRIORITY);
             is = new URL(getDocumentBase(), mdname).openStream();
-            Model3D m = new Model3D (is);
+            Model3D m = new Model3D(is);
             md = m;
             m.findBB();
             m.compress();
             float xw = m.xmax - m.xmin;
             float yw = m.ymax - m.ymin;
             float zw = m.zmax - m.zmin;
-            if (yw > xw)
+            if (yw > xw) {
                 xw = yw;
-            if (zw > xw)
+            }
+            if (zw > xw) {
                 xw = zw;
+            }
             float f1 = getSize().width / xw;
             float f2 = getSize().height / xw;
             xfac = 0.7f * (f1 < f2 ? f1 : f2) * scalefudge;
-        } catch(Exception e) {
+        } catch (Exception e) {
             md = null;
             message = e.toString();
         }
         try {
-            if (is != null)
+            if (is != null) {
                 is.close();
-        } catch(Exception e) {
+            }
+        } catch (Exception e) {
         }
         repaint();
     }
 
+    @Override
     public void start() {
-        if (md == null && message == null)
+        if (md == null && message == null) {
             new Thread(this).start();
+        }
     }
 
+    @Override
     public void stop() {
     }
 
-    public  void mouseClicked(MouseEvent e) {
+    @Override
+    public void mouseClicked(MouseEvent e) {
     }
 
-    public  void mousePressed(MouseEvent e) {
+    @Override
+    public void mousePressed(MouseEvent e) {
         prevx = e.getX();
         prevy = e.getY();
         e.consume();
     }
 
-    public  void mouseReleased(MouseEvent e) {
+    @Override
+    public void mouseReleased(MouseEvent e) {
     }
 
-    public  void mouseEntered(MouseEvent e) {
+    @Override
+    public void mouseEntered(MouseEvent e) {
     }
 
-    public  void mouseExited(MouseEvent e) {
+    @Override
+    public void mouseExited(MouseEvent e) {
     }
 
-    public  void mouseDragged(MouseEvent e) {
+    @Override
+    public void mouseDragged(MouseEvent e) {
         int x = e.getX();
         int y = e.getY();
 
@@ -444,15 +491,17 @@
         e.consume();
     }
 
-    public  void mouseMoved(MouseEvent e) {
+    @Override
+    public void mouseMoved(MouseEvent e) {
     }
 
+    @Override
     public void paint(Graphics g) {
         if (md != null) {
             md.mat.unit();
             md.mat.translate(-(md.xmin + md.xmax) / 2,
-                             -(md.ymin + md.ymax) / 2,
-                             -(md.zmin + md.zmax) / 2);
+                    -(md.ymin + md.ymax) / 2,
+                    -(md.zmin + md.zmax) / 2);
             md.mat.mult(amat);
             md.mat.scale(xfac, -xfac, 16 * xfac / getSize().width);
             md.mat.translate(getSize().width / 2, getSize().height / 2, 8);
@@ -469,20 +518,18 @@
         painted = true;
         notifyAll();
     }
-//    private synchronized void waitPainted() {
-//      while (!painted)
-//          wait();
-//      painted = false;
-//    }
 
+    @Override
     public String getAppletInfo() {
-        return "Title: ThreeD \nAuthor: James Gosling? \nAn applet to put a 3D model into a page.";
+        return "Title: ThreeD \nAuthor: James Gosling? \n"
+                + "An applet to put a 3D model into a page.";
     }
 
+    @Override
     public String[][] getParameterInfo() {
         String[][] info = {
-            {"model", "path string", "The path to the model to be displayed."},
-            {"scale", "float", "The scale of the model.  Default is 1."}
+            { "model", "path string", "The path to the model to be displayed." },
+            { "scale", "float", "The scale of the model.  Default is 1." }
         };
         return info;
     }
--- a/src/share/demo/applets/WireFrame/example1.html	Fri Mar 25 17:57:57 2011 +0100
+++ b/src/share/demo/applets/WireFrame/example1.html	Fri Mar 25 17:59:02 2011 +0100
@@ -6,7 +6,7 @@
     <h1>3D Model: Cube</h1>
       <hr>
       <applet code=ThreeD.class width=100 height=100>
-	<param name=model value=models/cube.obj>
+	<param name=model value="models/cube.obj">
 	  alt="Your browser understands the &lt;APPLET&gt; tag but isn't running the applet, for some reason."
 	  Your browser is completely ignoring the &lt;APPLET&gt; tag!
       </applet>
--- a/src/share/demo/applets/WireFrame/example2.html	Fri Mar 25 17:57:57 2011 +0100
+++ b/src/share/demo/applets/WireFrame/example2.html	Fri Mar 25 17:59:02 2011 +0100
@@ -6,7 +6,7 @@
       <h1>3D Model: Dinosaur</h1>
       <hr>
       <applet code=ThreeD.class width=300 height=300>
-	<param name=model value=models/dinasaur.obj>
+	<param name=model value="models/dinasaur.obj">
 	  alt="Your browser understands the &lt;APPLET&gt; tag but isn't running the applet, for some reason."
 	  Your browser is completely ignoring the &lt;APPLET&gt; tag!
       </applet>
--- a/src/share/demo/applets/WireFrame/example3.html	Fri Mar 25 17:57:57 2011 +0100
+++ b/src/share/demo/applets/WireFrame/example3.html	Fri Mar 25 17:59:02 2011 +0100
@@ -6,7 +6,7 @@
       <h1>3D Model: Hughes</h1>
       <hr>
       <applet code=ThreeD.class width=300 height=300>
-	<param name=model value=models/hughes_500.obj>
+	<param name=model value="models/hughes_500.obj">
 	  alt="Your browser understands the &lt;APPLET&gt; tag but isn't running the applet, for some reason."
 	  Your browser is completely ignoring the &lt;APPLET&gt; tag!
       </applet>
--- a/src/share/demo/applets/WireFrame/example4.html	Fri Mar 25 17:57:57 2011 +0100
+++ b/src/share/demo/applets/WireFrame/example4.html	Fri Mar 25 17:59:02 2011 +0100
@@ -6,7 +6,7 @@
       <h1>3D Model: knoxS</h1>
       <hr>
       <applet code=ThreeD.class width=300 height=300>
-	<param name=model value=models/knoxS.obj>      
+	<param name=model value="models/knoxS.obj">
 	  alt="Your browser understands the &lt;APPLET&gt; tag but isn't running the applet, for some reason."
 	  Your browser is completely ignoring the &lt;APPLET&gt; tag!
       </applet>