1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
|
import java.awt.Color;
import java.awt.GridLayout;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import javax.media.j3d.AmbientLight;
import javax.media.j3d.Appearance;
import javax.media.j3d.Background;
import javax.media.j3d.BoundingBox;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.Bounds;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.DirectionalLight;
import javax.media.j3d.Group;
import javax.media.j3d.Light;
import javax.media.j3d.Material;
import javax.media.j3d.Node;
import javax.media.j3d.Shape3D;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.swing.JComponent;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
import javax.vecmath.Point3f;
import javax.vecmath.Vector3d;
import javax.vecmath.Vector3f;
import com.eteks.sweethome3d.model.FurnitureEvent;
import com.eteks.sweethome3d.model.FurnitureListener;
import com.eteks.sweethome3d.model.Home;
import com.eteks.sweethome3d.model.HomePieceOfFurniture;
import com.eteks.sweethome3d.model.PieceOfFurniture;
import com.eteks.sweethome3d.model.Wall;
import com.eteks.sweethome3d.model.WallEvent;
import com.eteks.sweethome3d.model.WallListener;
import com.sun.j3d.loaders.IncorrectFormatException;
import com.sun.j3d.loaders.ParsingErrorException;
import com.sun.j3d.loaders.Scene;
import com.sun.j3d.loaders.objectfile.ObjectFile;
import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
import com.sun.j3d.utils.geometry.Box;
import com.sun.j3d.utils.geometry.GeometryInfo;
import com.sun.j3d.utils.geometry.NormalGenerator;
import com.sun.j3d.utils.universe.SimpleUniverse;
/**
* A component that displays home walls and furniture with Java 3D.
* @author Emmanuel Puybaret
*/
public class HomeComponent3D extends JComponent {
private Map<Object, ObjectBranch> homeObjects =
new HashMap<Object, ObjectBranch>();
/**
* Creates a 3D component that displays <code>home</code> walls and furniture.
*/
public HomeComponent3D(Home home) {
// Create the Java 3D canvas that will display home
Canvas3D canvas3D = new Canvas3D(
SimpleUniverse.getPreferredConfiguration());
// Link it to a default univers
SimpleUniverse universe = new SimpleUniverse(canvas3D);
universe.getViewingPlatform().setNominalViewingTransform();
// Link scene matching home to universe
universe.addBranchGraph(getSceneTree(home));
// Layout canvas3D
setLayout(new GridLayout(1, 1));
add(canvas3D);
// This component doesn't manage keyboard at this time,
// so it's useless to let its canvas be focusable
canvas3D.setFocusable(false);
}
/**
* Returns scene tree root.
*/
private BranchGroup getSceneTree(Home home) {
BranchGroup root = new BranchGroup();
Group mainGroup = getMainGroup();
Group behaviorGroup = getBehaviorGroup();
// Build scene tree
behaviorGroup.addChild(getHomeTree(home));
mainGroup.addChild(behaviorGroup);
root.addChild(mainGroup);
root.addChild(getBackgroundNode());
for (Light light : getLights()) {
root.addChild(light);
}
return root;
}
/**
* Returns the group initialized to view a home
* with a angle of view of 45?.
*/
private Group getMainGroup() {
Transform3D rotationX = new Transform3D();
rotationX.rotX(Math.PI / 4);
return new TransformGroup(rotationX);
}
/**
* Returns the group which behavior controls the orientation of the scene.
*/
private Group getBehaviorGroup() {
TransformGroup transformGroup = new TransformGroup();
transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
MouseRotate mouseBehavior = new MouseRotate(transformGroup);
mouseBehavior.setFactor(mouseBehavior.getXFactor(), 0);
Bounds schedulingBounds = new BoundingBox();
mouseBehavior.setSchedulingBounds(schedulingBounds);
// Add behavior to transform group to activate it
transformGroup.addChild(mouseBehavior);
return transformGroup;
}
/**
* Returns the background node.
*/
private Node getBackgroundNode() {
Background background = new Background(0.9f, 0.9f, 0.9f);
background.setApplicationBounds(new BoundingBox());
return background;
}
/**
* Returns the lights of the scene.
*/
private Light [] getLights() {
Light [] lights = {
new DirectionalLight(new Color3f(1, 1, 1),
new Vector3f(1, -1, -1)),
new DirectionalLight(new Color3f(1, 1, 1),
new Vector3f(-1, -1, -1)),
new AmbientLight(new Color3f(0.6f, 0.6f, 0.6f))};
for (Light light : lights) {
light.setInfluencingBounds(new BoundingSphere(new Point3d(), 1000000));
}
return lights;
}
/**
* Returns <code>home</code> tree node, with branches for each wall
* and piece of furniture of <code>home</code>.
*/
private Node getHomeTree(Home home) {
Group homeRoot = getHomeRoot();
// Add walls and pieces already available
for (Wall wall : home.getWalls())
addWall(homeRoot, wall, home);
for (HomePieceOfFurniture piece : home.getFurniture())
addPieceOfFurniture(homeRoot, piece);
// Add wall and furniture listeners to home for further update
addHomeListeners(home, homeRoot);
return homeRoot;
}
/**
* Returns the group at home subtree root.
*/
private Group getHomeRoot() {
// Create a transform group initialized to view
// a home of 1000 centimeters wide in a box of 1 unit centered at origin
Transform3D translation = new Transform3D();
translation.setTranslation(new Vector3f(-500, 0, -500));
Transform3D homeTransform = new Transform3D();
homeTransform.setScale(0.001);
homeTransform.mul(translation);
TransformGroup homeTransformGroup =
new TransformGroup(homeTransform);
// Allow transform group to have new children
homeTransformGroup.setCapability(Group.ALLOW_CHILDREN_WRITE);
homeTransformGroup.setCapability(Group.ALLOW_CHILDREN_EXTEND);
return homeTransformGroup;
}
/**
* Adds listeners to <code>home</code> that updates the scene <code>homeRoot</code>,
* each time a piece of furniture or a wall is added, updated or deleted.
*/
private void addHomeListeners(final Home home, final Group homeRoot) {
home.addWallListener(new WallListener() {
public void wallChanged(WallEvent ev) {
Wall wall = ev.getWall();
switch (ev.getType()) {
case ADD :
addWall(homeRoot, wall, home);
break;
case UPDATE :
updateWall(wall);
break;
case DELETE :
deleteObject(wall);
break;
}
}
});
home.addFurnitureListener(new FurnitureListener() {
public void pieceOfFurnitureChanged(FurnitureEvent ev) {
HomePieceOfFurniture piece = (HomePieceOfFurniture)ev.getPieceOfFurniture();
switch (ev.getType()) {
case ADD :
addPieceOfFurniture(homeRoot, piece);
break;
case UPDATE :
updatePieceOfFurniture(piece);
break;
case DELETE :
deleteObject(piece);
break;
}
}
});
}
/**
* Adds to <code>homeRoot</code> a wall branch matching <code>wall</code>.
*/
private void addWall(Group homeRoot, Wall wall, Home home) {
Wall3D wall3D = new Wall3D(wall, home);
this.homeObjects.put(wall, wall3D);
homeRoot.addChild(wall3D);
}
/**
* Updates <code>wall</code> geometry,
* and the walls at its end or start.
*/
private void updateWall(Wall wall) {
this.homeObjects.get(wall).update();
if (wall.getWallAtStart() != null) {
this.homeObjects.get(wall.getWallAtStart()).update();
}
if (wall.getWallAtEnd() != null) {
this.homeObjects.get(wall.getWallAtEnd()).update();
}
}
/**
* Detaches from the scene the branch matching <code>homeObject</code>.
*/
private void deleteObject(Object homeObject) {
this.homeObjects.get(homeObject).detach();
this.homeObjects.remove(homeObject);
}
/**
* Adds to <code>homeRoot</code> a piece branch matching <code>piece</code>.
*/
private void addPieceOfFurniture(Group homeRoot, HomePieceOfFurniture piece) {
HomePieceOfFurniture3D piece3D = new HomePieceOfFurniture3D(piece);
this.homeObjects.put(piece, piece3D);
homeRoot.addChild(piece3D);
}
/**
* Updates <code>piece</code> scale, angle and location.
*/
private void updatePieceOfFurniture(HomePieceOfFurniture piece) {
this.homeObjects.get(piece).update();
}
/**
* Root of a branch that matches a home object.
*/
private static abstract class ObjectBranch extends BranchGroup {
public abstract void update();
}
/**
* Root of wall branch.
*/
private static class Wall3D extends ObjectBranch {
private Home home;
public Wall3D(Wall wall, Home home) {
setUserData(wall);
this.home = home;
// Allow wall branch to be removed from its parent
setCapability(BranchGroup.ALLOW_DETACH);
// Allow to read branch shape child
setCapability(BranchGroup.ALLOW_CHILDREN_READ);
// Add wall shape to branch
addChild(getWallShape());
// Set wall shape geometry and appearance
updateWallGeometry();
updateWallAppearance();
}
/**
* Returns an empty wall shape.
*/
private Node getWallShape() {
Shape3D wallShape = new Shape3D();
// Allow wall shape to change its geometry
wallShape.setCapability(Shape3D.ALLOW_GEOMETRY_WRITE);
return wallShape;
}
@Override
public void update() {
updateWallGeometry();
}
/**
* Sets the 3D geometry of this wall that matches its 2D geometry.
*/
private void updateWallGeometry() {
float [][] wallPoints = ((Wall)getUserData()).getPoints();
// Create points for the bottom and the top of the wall
Point3f [] bottom = new Point3f [4];
Point3f [] top = new Point3f [4];
for (int i = 0; i < bottom.length; i++) {
bottom [i] = new Point3f(
wallPoints[i][0], 0, wallPoints[i][1]);
top [i] = new Point3f(
wallPoints[i][0], this.home.getWallHeight(), wallPoints[i][1]);
}
// List of the 6 quadrilaterals of the wall
Point3f [] wallCoordinates = {
bottom [0], bottom [1], bottom [2], bottom [3],
bottom [1], bottom [0], top [0], top [1],
bottom [2], bottom [1], top [1], top [2],
bottom [3], bottom [2], top [2], top [3],
bottom [0], bottom [3], top [3], top [0],
top [3], top [2], top [1], top [0]};
// Build wall geomtry
GeometryInfo geometryInfo =
new GeometryInfo(GeometryInfo.QUAD_ARRAY);
geometryInfo.setCoordinates(wallCoordinates);
// Generates normals
new NormalGenerator(0).generateNormals(geometryInfo);
// Change wall geometry
((Shape3D)getChild(0)).setGeometry(
geometryInfo.getIndexedGeometryArray());
}
/**
* Sets wall appearance with a white color.
*/
private void updateWallAppearance() {
Appearance wallAppearance = new Appearance();
Material material = new Material();
wallAppearance.setMaterial(material);
((Shape3D)getChild(0)).setAppearance(wallAppearance);
}
}
/**
* Root of piece of furniture branch.
*/
private static class HomePieceOfFurniture3D extends ObjectBranch {
private static Executor modelLoader = Executors.newSingleThreadExecutor();
public HomePieceOfFurniture3D(HomePieceOfFurniture piece) {
setUserData(piece);
// Allow piece branch to be removed from its parent
setCapability(BranchGroup.ALLOW_DETACH);
// Allow to read branch transform child
setCapability(BranchGroup.ALLOW_CHILDREN_READ);
addChild(getPieceOfFurnitureNode());
// Set piece model initial location, orientation and size
updatePieceOfFurnitureTransform();
}
/**
* Returns piece node with its transform group.
*/
private Node getPieceOfFurnitureNode() {
final TransformGroup pieceTransformGroup = new TransformGroup();
// Allow the change of the transformation that sets piece size and position
pieceTransformGroup.setCapability(
TransformGroup.ALLOW_TRANSFORM_WRITE);
pieceTransformGroup.setCapability(Group.ALLOW_CHILDREN_WRITE);
pieceTransformGroup.setCapability(Group.ALLOW_CHILDREN_EXTEND);
// While loading model use a temporary node that displays a white box
final BranchGroup waitBranch = new BranchGroup();
waitBranch.setCapability(BranchGroup.ALLOW_DETACH);
waitBranch.addChild(getModelBox(Color.WHITE));
pieceTransformGroup.addChild(waitBranch);
// Load piece real 3D model
modelLoader.execute(new Runnable() {
public void run() {
BranchGroup modelBranch = new BranchGroup();
modelBranch.addChild(getModelNode());
pieceTransformGroup.addChild(modelBranch);
// Remove temporary node
waitBranch.detach();
}
});
return pieceTransformGroup;
}
@Override
public void update() {
updatePieceOfFurnitureTransform();
}
/**
* Sets the transformation applied to piece model to match
* its location, its angle and its size.
*/
private void updatePieceOfFurnitureTransform() {
HomePieceOfFurniture piece = (HomePieceOfFurniture)getUserData();
// Set piece size
Transform3D scale = new Transform3D();
scale.setScale(new Vector3d(piece.getWidth(), piece.getHeight(), piece.getDepth()));
// Change its angle around y axis
Transform3D orientation = new Transform3D();
orientation.rotY(-piece.getAngle());
// Translate it to its location
Transform3D pieceTransform = new Transform3D();
pieceTransform.setTranslation(new Vector3f(piece.getX(), piece.getHeight() / 2, piece.getY()));
pieceTransform.mul(orientation);
pieceTransform.mul(scale);
// Change model transformation
((TransformGroup)getChild(0)).setTransform(pieceTransform);
}
/**
* Returns the 3D model of this piece that fits
* in a 1 unit wide box centered at the origin.
*/
private Node getModelNode() {
PieceOfFurniture piece = (PieceOfFurniture)getUserData();
Reader modelReader = null;
try {
// Read piece model from a object file
modelReader = new InputStreamReader(piece.getModel().openStream());
ObjectFile loader = new ObjectFile();
Scene scene = loader.load(modelReader);
// Get model bounding box size
BranchGroup modelScene = scene.getSceneGroup();
BoundingBox modelBounds = getBounds(modelScene);
Point3d lower = new Point3d();
modelBounds.getLower(lower);
Point3d upper = new Point3d();
modelBounds.getUpper(upper);
// Translate model to its center
Transform3D translation = new Transform3D();
translation.setTranslation(
new Vector3d(-lower.x - (upper.x - lower.x) / 2,
-lower.y - (upper.y - lower.y) / 2,
-lower.z - (upper.z - lower.z) / 2));
// Scale model to make it fit in a 1 unit wide box
Transform3D modelTransform = new Transform3D();
modelTransform.setScale (
new Vector3d(1 / (upper.x -lower.x),
1 / (upper.y - lower.y),
1 / (upper.z - lower.z)));
modelTransform.mul(translation);
// Add model scene to transform group
TransformGroup modelTransformGroup =
new TransformGroup(modelTransform);
modelTransformGroup.addChild(modelScene);
return modelTransformGroup;
} catch (IOException ex) {
// In case of problem return a default box
return getModelBox(Color.RED);
} catch (IncorrectFormatException ex) {
return getModelBox(Color.RED);
} catch (ParsingErrorException ex) {
return getModelBox(Color.RED);
} finally {
try {
if (modelReader != null) {
modelReader.close();
}
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
}
/**
* Returns a box that may replace model.
*/
private Node getModelBox(Color color) {
Material material = new Material();
material.setDiffuseColor(new Color3f(color));
material.setAmbientColor(new Color3f(color.darker()));
Appearance boxAppearance = new Appearance();
boxAppearance.setMaterial(material);
return new Box(0.5f, 0.5f, 0.5f, boxAppearance);
}
/**
* Returns the bounds of 3D shapes under <code>node</code>.
* This method computes the exact box that contains all the shapes,
* contrary to <code>node.getBounds()</code> that returns a bounding
* sphere for a scene.
*/
private BoundingBox getBounds(Node node) {
BoundingBox objectBounds = new BoundingBox(
new Point3d(Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY),
new Point3d(Double.NEGATIVE_INFINITY, Double.NEGATIVE_INFINITY, Double.NEGATIVE_INFINITY));
computeBounds(node, objectBounds);
return objectBounds;
}
private void computeBounds(Node node, BoundingBox bounds) {
if (node instanceof Group) {
// Compute the bounds of all the node children
Enumeration enumeration = ((Group)node).getAllChildren();
while (enumeration.hasMoreElements ()) {
computeBounds((Node)enumeration.nextElement (), bounds);
}
} else if (node instanceof Shape3D) {
Bounds shapeBounds = ((Shape3D)node).getBounds();
bounds.combine(shapeBounds);
}
}
}
} |
[débutant]java2D en java3D
Répondre avec citation
Partager