org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/swt/RotateAction.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2013 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.g3d.vtk.swt;
  13
  14
  15 import java.awt.event.KeyEvent;
  16 import java.awt.event.MouseEvent;
  17
  18 import javax.vecmath.AxisAngle4d;
  19 import javax.vecmath.Point3d;
  20 import javax.vecmath.Quat4d;
  21 import javax.vecmath.Vector3d;
  22
  23 import org.eclipse.swt.SWT;
  24 import org.eclipse.swt.graphics.Cursor;
  25 import org.eclipse.swt.widgets.Display;
  26 import org.simantics.g3d.math.EulerTools;
  27 import org.simantics.g3d.math.EulerTools.Order;
  28 import org.simantics.g3d.math.MathTools;
  29 import org.simantics.g3d.math.Ray;
  30 import org.simantics.g3d.preferences.PreferenceConstants;
  31 import org.simantics.g3d.scenegraph.IG3DNode;
  32 import org.simantics.g3d.scenegraph.structural.IStructuralNode;
  33 import org.simantics.g3d.vtk.Activator;
  34 import org.simantics.g3d.vtk.common.VTKNodeMap;
  35 import org.simantics.g3d.vtk.gizmo.RotateAxisGizmo;
  36 import org.simantics.g3d.vtk.utils.vtkUtil;
  37 import org.simantics.utils.threads.AWTThread;
  38 import org.simantics.utils.threads.ThreadUtils;
  39
  40 import vtk.vtkProp;
  41 /**
  42  * FIXME: complete rewrite.
  43  *
  44  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
  45  *
  46  */
  47 public class RotateAction extends vtkSwtAction{
  48
  49         public static final int X = 0;
  50     public static final int Y = 1;
  51     public static final int Z = 2;
  52     public static final int P = 3;
  53
  54         private VTKNodeMap nodeMap;
  55         //private TranslateGizmo  gizmo = new TranslateGizmo();
  56         private RotateAxisGizmo gizmo = new RotateAxisGizmo();
  57         private IG3DNode node;
  58
  59
  60
  61         private Cursor activeCursor;// = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);
  62         private Cursor dragCursor;// = Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR);
  63
  64
  65         int stepMethod = 1;
  66         Order order = Order.YXZ;
  67
  68     private int steps;
  69     private double angles[];
  70
  71         int index = P;
  72         boolean valid = false;
  73         private boolean worldCoord = true;
  74         //private AxisAngle4d aa = null;
  75         private Quat4d parentWorldOrientation = null;
  76
  77         //AxisAngle4d rotation = new AxisAngle4d();
  78         Quat4d worldOrientation = new Quat4d();
  79
  80         public void setNode(IG3DNode node) {
  81                 this.node = node;
  82                 if ((node instanceof IStructuralNode) && ((IStructuralNode)node).isPartOfInstantiatedModel() && !((IStructuralNode)node).isInstantiatedModelRoot()) {
  83                         setEnabled(false);
  84                 } else {
  85                         setEnabled(true);
  86                 }
  87
  88                 String set = org.simantics.g3d.Activator.getDefault().getPreferenceStore().getString(PreferenceConstants.ORIENTATION_PRESENTATION);
  89                 if (set.equals("aa")) {
  90                         stepMethod = 0;
  91                 } else if (set.equals("euler")){
  92                         stepMethod = 1;
  93                         String eulerOrder = org.simantics.g3d.Activator.getDefault().getPreferenceStore().getString(PreferenceConstants.EULER_ANGLE_ORDER);
  94                         try {
  95                                 order = Order.valueOf(eulerOrder);
  96                         } catch (Exception e) {
  97                                 order = Order.YXZ;
  98                         }
  99                 } else {
 100                         stepMethod = 2;
 101                 }
 102         }
 103
 104         public IG3DNode getNode() {
 105                 return node;
 106         }
 107
 108         public RotateAction(InteractiveVtkComposite panel, VTKNodeMap nodeMap) {
 109                 super(panel);
 110                 setImageDescriptor(Activator.imageDescriptorFromPlugin("com.famfamfam.silk", "icons/arrow_rotate_clockwise.png"));
 111                 setText("Rotate");
 112                 this.nodeMap = nodeMap;
 113
 114
 115                 steps = 36;
 116         angles = new double[steps+1];
 117         for (int i = 0; i < angles.length; i++) {
 118             angles[i] = - Math.PI + (Math.PI * i * 2.0 / steps);
 119         }
 120
 121         activeCursor = Display.getCurrent().getSystemCursor(SWT.CURSOR_HAND);
 122         dragCursor = Display.getCurrent().getSystemCursor(SWT.CURSOR_CROSS);
 123         }
 124
 125         public void attach() {
 126                 if (node == null)
 127                         return;
 128
 129                 super.attach();
 130                 ThreadUtils.asyncExec(panel.getThreadQueue(), new Runnable() {
 131                         public void run() {
 132                                 attachUI();
 133                                 update();
 134                         }
 135                 });
 136
 137
 138
 139         }
 140
 141         public void deattach() {
 142
 143                 node = null;
 144                 nodeMap.commit();
 145                 deattachUI();
 146                 super.deattach();
 147                 panel.refresh();
 148         }
 149
 150         private void attachUI() {
 151                 panel.getComponent().setCursor(activeCursor);
 152                 gizmo.attach(panel);
 153         }
 154
 155         private void deattachUI() {
 156                 panel.getComponent().setCursor(Display.getCurrent().getSystemCursor(SWT.CURSOR_ARROW));
 157                 gizmo.deattach();
 158         }
 159
 160         @Override
 161         public boolean keyPressed(KeyEvent e) {
 162                 if (e.getKeyCode() == KeyEvent.VK_ESCAPE)
 163                         panel.useDefaultAction();
 164                 if (valid)
 165                         return true;
 166                 if (e.getKeyCode() == KeyEvent.VK_X) {
 167                         if (index != X)
 168                                 index = X;
 169                         else
 170                                 index = P;
 171                 }
 172                 if (e.getKeyCode() == KeyEvent.VK_Y) {
 173                         if (index != Y)
 174                                 index = Y;
 175                         else
 176                                 index = P;
 177                 }
 178                 if (e.getKeyCode() == KeyEvent.VK_Z) {
 179                         if (index != Z)
 180                                 index = Z;
 181                         else
 182                                 index = P;
 183                 }
 184                 if (e.getKeyCode() == KeyEvent.VK_G) {
 185                         worldCoord = !worldCoord;
 186                 }
 187                 gizmo.setType(index);
 188                 panel.refresh();
 189                 return true;
 190         }
 191
 192         @Override
 193         public boolean keyReleased(KeyEvent e) {
 194                 return false;
 195         }
 196
 197
 198
 199         @Override
 200         public boolean mouseClicked(MouseEvent e) {
 201                 if (e.getClickCount() > 1) {
 202                         if (isOverNode(e)) {
 203                                 return true;
 204                         }
 205                         panel.useDefaultAction();
 206                         //if(!gizmo.isPartOf(actor))
 207                         //      panel.useDefaultAction();
 208                         return true;
 209                 }
 210                 return false;
 211         }
 212
 213
 214
 215
 216
 217
 218
 219         public void setWorldCoord(boolean b) {
 220                 if (worldCoord == b)
 221                         return;
 222                 worldCoord = b;
 223                 update();
 224
 225         }
 226
 227
 228         private void update() {
 229                 Vector3d nodePos = node.getWorldPosition();
 230                 System.out.println(nodePos);
 231                 gizmo.setPosition(nodePos);
 232                 if (worldCoord) {
 233                         gizmo.setRotation(new AxisAngle4d());
 234                         parentWorldOrientation = null;
 235                 } else {
 236                         AxisAngle4d aa = new AxisAngle4d();
 237                         parentWorldOrientation = ((IG3DNode)node.getParent()).getWorldOrientation();
 238                         aa.set(parentWorldOrientation);
 239                         gizmo.setRotation(aa);
 240                 }
 241
 242                 Point3d camPos = new Point3d(panel.getRenderer().GetActiveCamera().GetPosition());
 243                 Vector3d p = new Vector3d(nodePos);
 244                 p.sub(camPos);
 245
 246                 if (parentWorldOrientation != null) {
 247                         Quat4d qi = new Quat4d(parentWorldOrientation);
 248                         qi.inverse();
 249                         MathTools.rotate(parentWorldOrientation, p, p);
 250                 }
 251                 if (panel.getRenderer().GetActiveCamera().GetParallelProjection() == 0) {
 252                         double distance = p.length();
 253                         p.negate();
 254             double fov = panel.getRenderer().GetActiveCamera().GetViewAngle();
 255             float s = (float) (Math.sin(fov) * distance * 0.1);
 256
 257             Vector3d scale = new Vector3d(1., 1., 1.);
 258
 259 //            if (p.x > 0.f)
 260 //                scale.x = -1.;
 261 //            if (p.y > 0.f)
 262 //                scale.y = -1.;
 263 //            if (p.z > 0.f)
 264 //                scale.z = -1.;
 265             scale.scale(s);
 266             gizmo.setScale(scale);
 267
 268                 } else {
 269                         Vector3d scale = new Vector3d(1.f, 1.f, 1.f);
 270             double s = panel.getRenderer().GetActiveCamera().GetParallelScale() / 5.;
 271 //            if (p.x > 0.f)
 272 //                scale.x = -1.;
 273 //            if (p.y > 0.f)
 274 //                scale.y = -1.;
 275 //            if (p.z > 0.f)
 276 //                scale.z = -1.;
 277             scale.scale(s);
 278             gizmo.setScale(scale);
 279                 }
 280
 281                 panel.refresh();
 282         }
 283
 284         private boolean isOverNode(MouseEvent e) {
 285                 vtkProp picked[] = panel.pick(e.getX(), e.getY());
 286                 if (picked !=null) {
 287                         for (int i = 0; i < picked.length; i++) {
 288                                 if (node.equals(nodeMap.getNode(picked[i])))
 289                                         return true;
 290                         }
 291                 }
 292                 return false;
 293         }
 294
 295
 296
 297         @Override
 298         public boolean mousePressed(MouseEvent e) {
 299                 if (e.getButton() == MouseEvent.BUTTON1) {
 300
 301
 302                         if (isOverNode(e)) {
 303                                 valid = true;
 304                                 if ((e.getModifiers() & MouseEvent.CTRL_MASK) > 0) {
 305                                         useStep = true;
 306                     } else {
 307                         useStep = false;
 308                     }
 309                                 worldOrientation = node.getWorldOrientation();
 310                                 doChanges(true, e.getX(), e.getY());
 311
 312                                 panel.getComponent().setCursor(dragCursor);
 313                         } else {
 314                                 valid = false;
 315                                 getDefaultAction().mousePressed(e);
 316                                 panel.getComponent().setCursor(activeCursor);
 317                         }
 318                 } else {
 319                         getDefaultAction().mousePressed(e);
 320                 }
 321                 return true;
 322         }
 323
 324
 325
 326         @Override
 327         public boolean mouseReleased(MouseEvent e) {
 328                 if (e.getButton() == MouseEvent.BUTTON1) {
 329                         valid = false;
 330                         worldOrientation = null;
 331                         panel.getComponent().setCursor(activeCursor);
 332                 } else {
 333                         getDefaultAction().mouseReleased(e);
 334                 }
 335                 return true;
 336         }
 337
 338         @Override
 339         public boolean mouseDragged(MouseEvent e) {
 340                 if ((e.getModifiersEx() & MouseEvent.BUTTON1_DOWN_MASK) > 0 && valid) {
 341                         if ((e.getModifiers() & MouseEvent.CTRL_MASK) > 0) {
 342                                 useStep = true;
 343             } else {
 344                 useStep = false;
 345             }
 346                         doChanges(false, e.getX(), e.getY());
 347
 348                         //nodeMap.modified(node);
 349                         update();
 350                 } else {
 351                         getDefaultAction().mouseDragged(e);
 352                         update();
 353                 }
 354                 return true;
 355         }
 356
 357          Vector3d axis = null;
 358
 359         @Override
 360         public boolean keyTyped(KeyEvent e) {
 361                  if (e.getKeyCode() == KeyEvent.VK_LEFT) {
 362                 inputType = InputType.KEY;
 363                 axis = new Vector3d(0.0,1.0,0.0);
 364              } else if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
 365                         inputType = InputType.KEY;
 366                         axis = new Vector3d(0.0,-1.0,0.0);
 367              } else if (e.getKeyCode() ==KeyEvent.VK_UP) {
 368                         inputType = InputType.KEY;
 369                         axis = new Vector3d(1.0,0.0,0.0);
 370              } else if (e.getKeyCode() == KeyEvent.VK_DOWN) {
 371                         inputType = InputType.KEY;
 372                         axis = new Vector3d(-1.0,0.0,0.0);
 373              }
 374                  return true;
 375         }
 376
 377     public void doChanges(boolean pressed, int x, int y) {
 378         Ray ray = vtkUtil.createMouseRay(panel.getRenderer(),x, y);
 379         Vector3d p = node.getWorldPosition();
 380
 381         if (pressed) {
 382             Vector3d axis = getRotationAxis();
 383             if (axis != null) {
 384                 if (!worldCoord) {
 385                         MathTools.rotate(parentWorldOrientation, axis, axis);
 386                 }
 387
 388
 389                 double s[] = new double[2];
 390                 Vector3d i2 = new Vector3d();
 391
 392                 boolean intersect = MathTools.intersectStraightPlane(ray.pos, ray.dir, p, axis, i2, s);
 393                 double dot = Math.abs(ray.dir.dot(axis));
 394                 if (intersect &&  dot > 0.4)
 395                         inputType = InputType.INTERSECT;
 396                 else
 397                         inputType = InputType.NONINTERSECT;
 398
 399
 400                 if (inputType == InputType.INTERSECT) {
 401                     // picking ray and plane defined by gizmo's center point and
 402                     // rotation axis can intersect
 403                     // vector from center point to intersection point
 404                     i2.sub(p);
 405                     // creating vectors i and j that are lying on the plane and
 406                     // are perpendicular
 407                     // vectors are used to calculate polar coordinate for
 408                     // intersection point
 409                     j.set(i2);
 410                     i.cross(j, axis);
 411                     System.out.println("I,J " + i + " " + j);
 412                     double angleI = i2.angle(i);
 413                     double angleJ = i2.angle(j);
 414                     prevAngle = Math.atan2(Math.cos(angleJ), Math.cos(angleI));
 415                 } else {
 416                     // picking ray and plane defined by gizmo's center point and
 417                     // rotation axis are parallel,
 418                     // so we'll use cross product of rotation axis and picking
 419                     // ray to detect amount of rotation
 420                     i.cross(ray.dir, axis);
 421                     MathTools.intersectStraightStraight(ray.pos, ray.dir, p, i, new Vector3d(), new Vector3d(), s);
 422                     prevS = s[1];
 423                 }
 424             }
 425
 426
 427         }
 428
 429         if (inputType != InputType.KEY)
 430                 axis = getRotationAxis();
 431         if (axis == null) {
 432             return;
 433         }
 434         Vector3d taxis = null;
 435         if (!worldCoord) {
 436                 taxis = new Vector3d(axis);
 437                 MathTools.rotate(parentWorldOrientation, axis, axis);
 438         }
 439         System.out.println(inputType);
 440         if (inputType == InputType.INTERSECT) {
 441
 442             double s[] = new double[2];
 443             Vector3d i2 = new Vector3d();
 444             MathTools.intersectStraightPlane(ray.pos, ray.dir, p, axis, i2, s);
 445             i2.sub(p);
 446             double angleI = i2.angle(i);
 447             double angleJ = i2.angle(j);
 448             double angle = Math.atan2(Math.cos(angleJ), Math.cos(angleI));
 449             System.out.println("Angle " + angle + " i " + angleI + " j " + angleJ + " prev " + prevAngle);
 450             if(!worldCoord)
 451                 axis = taxis;
 452             if (useStep) {
 453
 454                 //setOrientation(MathTools.getQuat(rotation));
 455                 AxisAngle4d rot = new AxisAngle4d(axis,angle-prevAngle);
 456                 Quat4d qrot = new Quat4d();
 457                 MathTools.getQuat(rot, qrot);
 458                 //prevAngle = angle;
 459                 qrot.mulInverse(worldOrientation);
 460
 461
 462                 if (stepMethod == 0) {
 463                         rot.set(qrot);
 464                         rot.angle = roundAngle(rot.angle);
 465                         //qrot.set(rot);
 466                         MathTools.getQuat(rot,qrot);
 467                         setOrientation(qrot);
 468                 } else if (stepMethod == 1){
 469
 470                         //Vector3d euler = MathTools.getEuler(qrot);
 471                         Vector3d euler = EulerTools.getEulerFromQuat(order, qrot);
 472                         euler.x = roundAngle(euler.x);
 473                         euler.y = roundAngle(euler.y);
 474                         euler.z = roundAngle(euler.z);
 475                         //Quat4d q = MathTools.getQuat(euler);
 476                         Quat4d q = EulerTools.getQuatFromEuler(order, euler);
 477                         setOrientation(q);
 478                         System.out.println(" (" + MathTools.radToDeg(euler.x) + " " + MathTools.radToDeg(euler.y) + " " + MathTools.radToDeg(euler.z) +  ") " + qrot + " "+ q);
 479                 } else {
 480                         setOrientation(qrot);
 481                 }
 482
 483             } else {
 484                 if (worldCoord) {
 485                         //G3DTools.multiplyOrientation(mo.getG3DNode(graph).getWorldOrientation(), new AxisAngle4d(axis,angle-prevAngle));
 486                         AxisAngle4d aa = MathTools.getAxisAngle(node.getWorldOrientation());
 487                         AxisAngle4d rot = new AxisAngle4d(axis,angle-prevAngle);
 488                         MathTools.multiplyOrientation(aa, rot);
 489                         setWorldOrientation(MathTools.getQuat(rot));
 490                 } else {
 491                         AxisAngle4d aa = MathTools.getAxisAngle(node.getOrientation());
 492                         AxisAngle4d rot = new AxisAngle4d(axis,angle-prevAngle);
 493                         MathTools.multiplyOrientation(aa, rot);
 494                         setOrientation(MathTools.getQuat(rot));
 495                         //G3DTools.multiplyOrientation(mo.getG3DNode(graph).getLocalOrientation(), new AxisAngle4d(axis,angle-prevAngle));
 496                 }
 497                 prevAngle = angle;
 498             }
 499
 500         } else if (inputType == InputType.NONINTERSECT){
 501
 502             double s[] = new double[2];
 503             MathTools.intersectStraightStraight(ray.pos, ray.dir, p, i, new Vector3d(), new Vector3d(), s);
 504             if(!worldCoord)
 505                 axis = taxis;
 506             if (useStep) {
 507                 //setOrientation(MathTools.getQuat(rotation));
 508                 AxisAngle4d rot = new AxisAngle4d(axis,s[1] - prevS);
 509
 510                 Quat4d qrot = new Quat4d();
 511                 //qrot.set(rot);
 512                 MathTools.getQuat(rot, qrot);
 513                 //prevAngle = angle;
 514                 qrot.mulInverse(worldOrientation);
 515
 516
 517                 if (stepMethod == 0) {
 518                         rot.set(qrot);
 519                         rot.angle = roundAngle(rot.angle);
 520                         //qrot.set(rot);
 521                         MathTools.getQuat(rot,qrot);
 522                         setOrientation(qrot);
 523                 } else if (stepMethod == 1){
 524
 525                         //Vector3d euler = MathTools.getEuler(qrot);
 526                         Vector3d euler = EulerTools.getEulerFromQuat(order, qrot);
 527                         euler.x = roundAngle(euler.x);
 528                         euler.y = roundAngle(euler.y);
 529                         euler.z = roundAngle(euler.z);
 530                         //Quat4d q = MathTools.getQuat(euler);
 531                         Quat4d q = EulerTools.getQuatFromEuler(order, euler);
 532                         setOrientation(q);
 533                         System.out.println(" (" + MathTools.radToDeg(euler.x) + " " + MathTools.radToDeg(euler.y) + " " + MathTools.radToDeg(euler.z) +  ") " + qrot + " "+ q);
 534                 } else {
 535                         setOrientation(qrot);
 536                 }
 537                 prevS = s[1];
 538
 539 //                    G3DTools.setOrientation(mo.getG3DNode(graph).getLocalOrientation(), rotations.get(mo));
 540 //                    G3DTools.multiplyOrientation(mo.getG3DNode(graph).getWorldOrientation(), new AxisAngle4d(axis,s[1] - prevS));
 541 //                    AxisAngle4d aa = G3DTools.getOrientation(mo.getG3DNode(graph).getLocalOrientation());
 542 //                    rotations.put(mo, aa);
 543 //                    Vector3d euler = MathTools.getEuler(aa);
 544 //                    euler.x = roundAngle(euler.x);
 545 //                    euler.y = roundAngle(euler.y);
 546 //                    euler.z = roundAngle(euler.z);
 547 //                    aa = MathTools.getFromEuler2(euler);
 548 //                    prevS = s[1];
 549 //                    G3DTools.setOrientation(mo.getG3DNode(graph).getLocalOrientation(), aa);
 550 //                    Vector3d e = MathTools.getEuler(G3DTools.getOrientation(mo.getG3DNode(graph).getLocalOrientation()));
 551 //                    e.scale(180.0/Math.PI);
 552 //                    text += G3DTools.getOrientation(mo.getG3DNode(graph).getLocalOrientation()) + " " + e + " ";
 553
 554
 555             } else {
 556                         if (worldCoord) {
 557                                 AxisAngle4d aa =  MathTools.getAxisAngle(node.getWorldOrientation());
 558                         AxisAngle4d rot = new AxisAngle4d(axis,s[1] - prevS);
 559                         MathTools.multiplyOrientation(aa, rot);
 560                         setWorldOrientation(MathTools.getQuat(rot));
 561                                 //G3DTools.multiplyOrientation(mo.getG3DNode(graph).getWorldOrientation(), new AxisAngle4d(axis,s[1] - prevS));
 562                         } else {
 563                                 AxisAngle4d aa =  MathTools.getAxisAngle(node.getOrientation());
 564                         AxisAngle4d rot = new AxisAngle4d(axis,s[1] - prevS);
 565                         MathTools.multiplyOrientation(aa, rot);
 566                         setOrientation(MathTools.getQuat(rot));
 567                                 //G3DTools.multiplyOrientation(mo.getG3DNode(graph).getLocalOrientation(), new AxisAngle4d(axis,s[1] - prevS));
 568                         }
 569                         //text += G3DTools.getOrientation(mo.getG3DNode(graph).getLocalOrientation()) + " " + MathTools.getEuler(G3DTools.getOrientation(mo.getG3DNode(graph).getLocalOrientation())) + " ";
 570                 prevS = s[1];
 571
 572             }
 573
 574         } else {
 575                 if (worldCoord) {
 576                         AxisAngle4d aa = MathTools.getAxisAngle(node.getWorldOrientation());
 577                 AxisAngle4d rot = new AxisAngle4d(axis,Math.PI * 0.5);
 578                 MathTools.multiplyOrientation(aa, rot);
 579                 setWorldOrientation(MathTools.getQuat(rot));
 580                         //G3DTools.multiplyOrientation(mo.getG3DNode(graph).getWorldOrientation(), new AxisAngle4d(axis,Math.PI * 0.5));
 581                 } else {
 582                         AxisAngle4d aa = MathTools.getAxisAngle(node.getOrientation());
 583                 AxisAngle4d rot = new AxisAngle4d(axis,Math.PI * 0.5);
 584                 MathTools.multiplyOrientation(aa, rot);
 585                 setOrientation(MathTools.getQuat(rot));
 586                         //G3DTools.multiplyOrientation(mo.getG3DNode(graph).getLocalOrientation(), new AxisAngle4d(axis,Math.PI * 0.5));
 587                 }
 588              //   text += G3DTools.getOrientation(mo.getG3DNode(graph).getLocalOrientation()) + " " + MathTools.getEuler(G3DTools.getOrientation(mo.getG3DNode(graph).getLocalOrientation())) + " ";
 589
 590         }
 591         //setInfoText(text);
 592
 593     }
 594
 595     protected void setOrientation(Quat4d q) {
 596         node.setOrientation(q);
 597     }
 598
 599     protected void setWorldOrientation(Quat4d q) {
 600         node.setWorldOrientation(q);
 601     }
 602
 603         @Override
 604         public boolean mouseMoved(MouseEvent e) {
 605                 return getDefaultAction().mouseMoved(e);
 606         }
 607
 608         private Vector3d getRotationAxis() {
 609                 switch (index) {
 610                 case X:
 611                         return new Vector3d(1.0, 0.0, 0.0);
 612                 case Y:
 613                         return new Vector3d(0.0, 1.0, 0.0);
 614                 case Z:
 615                         return new Vector3d(0.0, 0.0, 1.0);
 616                 case P:
 617                         Vector3d axis = new Vector3d(panel.getRenderer().GetActiveCamera()
 618                                         .GetDirectionOfProjection());
 619                         axis.normalize();
 620                         return axis;
 621                 default:
 622                         return null;
 623                 }
 624         }
 625
 626          private double prevS = 0.0;
 627
 628     private Vector3d i = new Vector3d();
 629     private Vector3d j = new Vector3d();
 630     private double prevAngle = 0;
 631
 632     enum InputType{INTERSECT,NONINTERSECT,KEY,NONE};
 633     InputType inputType;
 634     private boolean useStep = false;
 635
 636
 637
 638     private double roundAngle(double angle) {
 639         while (angle < - Math.PI)
 640             angle += Math.PI*2.0;
 641         while (angle > Math.PI)
 642             angle -= Math.PI*2.0;
 643
 644
 645         int index = 0;
 646         while (angle > angles[index])
 647             index++;
 648         if (index == 0) {
 649             angle = angles[0];
 650         } else {
 651             double d = angle - angles[index - 1];
 652             double d2 = angles[index] - angle;
 653             if (d < d2)
 654                 angle = angles[index - 1];
 655             else
 656                 angle = angles[index];
 657         }
 658         return angle;
 659     }
 660
 661 }