org.simantics.plant3d/src/org/simantics/plant3d/utils/ComponentUtils.java

   1 package org.simantics.plant3d.utils;
   2
   3 import java.util.ArrayList;
   4 import java.util.HashMap;
   5 import java.util.List;
   6 import java.util.Map;
   7
   8 import javax.vecmath.Vector3d;
   9
  10 import org.simantics.Simantics;
  11 import org.simantics.db.ReadGraph;
  12 import org.simantics.db.Resource;
  13 import org.simantics.db.common.request.ReadRequest;
  14 import org.simantics.db.common.utils.NameUtils;
  15 import org.simantics.db.exception.DatabaseException;
  16 import org.simantics.g3d.math.MathTools;
  17 import org.simantics.g3d.scenegraph.GeometryProvider;
  18 import org.simantics.g3d.scenegraph.ParametricGeometryProvider;
  19 import org.simantics.layer0.Layer0;
  20 import org.simantics.plant3d.geometry.ParameterRead;
  21 import org.simantics.plant3d.ontology.Plant3D;
  22 import org.simantics.plant3d.scenegraph.EndComponent;
  23 import org.simantics.plant3d.scenegraph.Equipment;
  24 import org.simantics.plant3d.scenegraph.InlineComponent;
  25 import org.simantics.plant3d.scenegraph.Nozzle;
  26 import org.simantics.plant3d.scenegraph.P3DRootNode;
  27 import org.simantics.plant3d.scenegraph.PipeRun;
  28 import org.simantics.plant3d.scenegraph.PipelineComponent;
  29 import org.simantics.plant3d.scenegraph.TurnComponent;
  30 import org.simantics.plant3d.scenegraph.controlpoint.PipeControlPoint;
  31 import org.simantics.plant3d.scenegraph.controlpoint.PipeControlPoint.Direction;
  32 import org.simantics.plant3d.scenegraph.controlpoint.PipeControlPoint.PositionType;
  33 import org.simantics.plant3d.scenegraph.controlpoint.PipingRules;
  34
  35 public class ComponentUtils {
  36
  37
  38         private static Map<String,Class<? extends PipelineComponent>> clazzes = new HashMap<String, Class<? extends PipelineComponent>>();
  39         private static Map<String,GeometryProvider> providers = new HashMap<String,GeometryProvider>();
  40         private static Map<String,String> names = new HashMap<String,String>();
  41
  42         public static void preloadCache() {
  43                 Simantics.getSession().asyncRequest(new ReadRequest() {
  44
  45                         @Override
  46                         public void run(ReadGraph graph) throws DatabaseException {
  47                                 List<String> types = new ArrayList<String>();
  48                                 types.add(Plant3D.URIs.Builtin_Straight);
  49                                 types.add(Plant3D.URIs.Builtin_Elbow);
  50                                 types.add(Plant3D.URIs.Builtin_ConcentricReducer);
  51                                 types.add(Plant3D.URIs.Builtin_BranchSplitComponent);
  52                                 types.add(Plant3D.URIs.Builtin_EccentricReducer);
  53                                 types.add(Plant3D.URIs.Builtin_Elbow45);
  54                                 types.add(Plant3D.URIs.Builtin_Elbow90);
  55
  56                                 for (String typeURI : types) {
  57                                         load(graph, typeURI);
  58                                 }
  59                         }
  60                 });
  61         }
  62
  63         private static GeometryProvider getProvider(ReadGraph graph, Resource type) throws DatabaseException {
  64
  65                 Layer0 l0 = Layer0.getInstance(graph);
  66                 Plant3D p3d = Plant3D.getInstance(graph);
  67                 Resource geom = graph.getPossibleObject(type,p3d.hasGeometry);
  68                 if (geom == null) {
  69                         for (Resource a : graph.getObjects(type, l0.Asserts)) {
  70                                 if (p3d.hasGeometry.equals(graph.getPossibleObject(a, l0.HasPredicate))) {
  71                                         geom = graph.getPossibleObject(a, l0.HasObject);
  72                                         break;
  73                                 }
  74                         }
  75                 }
  76                 if (geom != null) {
  77                         GeometryProvider provider = graph.adapt(geom, GeometryProvider.class);
  78                         if (provider instanceof ParametricGeometryProvider) {
  79                         Map<String,Object> params = graph.syncRequest(new ParameterRead(type));
  80                         if (params.size() > 0)
  81                             ((ParametricGeometryProvider)provider).setProperties(params);
  82                         }
  83                         return provider;
  84                 }
  85                 return null;
  86         }
  87
  88         private static Class<? extends PipelineComponent> getClazz(ReadGraph graph, Resource type) throws DatabaseException {
  89                 Plant3D p3d = Plant3D.getInstance(graph);
  90                 if (graph.isInheritedFrom(type, p3d.InlineComponent))
  91                         return InlineComponent.class;
  92                 if (graph.isInheritedFrom(type, p3d.TurnComponent))
  93                         return TurnComponent.class;
  94                 if (graph.isInheritedFrom(type, p3d.EndComponent))
  95                         return EndComponent.class;
  96                 if (graph.isInheritedFrom(type, p3d.Nozzle))
  97                         return Nozzle.class;
  98                 return null;
  99         }
 100
 101         private static void load(ReadGraph graph, String typeURI) throws DatabaseException {
 102                 Plant3D p3d = Plant3D.getInstance(graph);
 103                 Resource type = graph.getResource(typeURI);
 104
 105                 GeometryProvider provider = getProvider(graph, type);
 106                 if (provider != null || graph.hasStatement(type,p3d.NonVisibleComponent)) {
 107                         providers.put(typeURI, provider);
 108                         if (graph.isInheritedFrom(type, p3d.PipelineComponent))
 109                                 clazzes.put(typeURI,getClazz(graph, type));
 110                         names.put(typeURI, NameUtils.getSafeName(graph, type));
 111                         return;
 112                 }
 113                 throw new DatabaseException("Cannot find component for " + typeURI);
 114         }
 115
 116         private static void load(final String typeURI) throws DatabaseException {
 117                 Simantics.getSession().syncRequest(new ReadRequest() {
 118
 119                         @Override
 120                         public void run(ReadGraph graph) throws DatabaseException {
 121                                 load(graph,typeURI);
 122                         }
 123                 });
 124         }
 125
 126         /**
 127          * Creates a component
 128          *
 129          * Does not set the name or add the component to a piperun.
 130          * @param root
 131          * @param typeURI
 132          * @return
 133          * @throws Exception
 134          */
 135         public static PipelineComponent createComponent(P3DRootNode root, String typeURI) throws Exception {
 136                 Class<? extends PipelineComponent> type = clazzes.get(typeURI);
 137                 GeometryProvider provider = providers.get(typeURI);
 138                 if (type == null || provider == null) {
 139                         load(typeURI);
 140                         type = clazzes.get(typeURI);
 141                         provider = providers.get(typeURI);
 142                 }
 143                 //PipelineComponent component = type.newInstance();
 144                 PipelineComponent component = null;
 145                 if (type == InlineComponent.class) {
 146                         component = root.createInline();
 147                 } else if (type == TurnComponent.class) {
 148                         component = root.createTurn();
 149                 } else if (type == EndComponent.class) {
 150                         component = root.createTurn();
 151                 } else if (type == Nozzle.class) {
 152                         component = root.createNozzle();
 153                 }
 154                 component.setType(typeURI);
 155                 component.setGeometry(provider);
 156                 return component;
 157         }
 158
 159         /**
 160          * Creates a equipment
 161          *
 162          * Does not set the name
 163          *
 164          * @param root
 165          * @param typeURI
 166          * @return
 167          * @throws Exception
 168          */
 169
 170         public static Equipment createEquipment(P3DRootNode root, String typeURI) throws Exception {
 171                 GeometryProvider provider = providers.get(typeURI);
 172                 if (provider == null) {
 173                         load(typeURI);
 174                         provider = providers.get(typeURI);
 175                 }
 176                 Equipment equipment = root.createEquipment();
 177                 equipment.setType(typeURI);
 178                 equipment.setGeometry(provider);
 179                 root.addChild(equipment);
 180                 return equipment;
 181         }
 182
 183         public static Equipment createEquipmentWithNozzles(P3DRootNode root, String typeURI, String nozzleTypeUri) throws Exception {
 184         GeometryProvider provider = providers.get(typeURI);
 185         if (provider == null) {
 186             load(typeURI);
 187             provider = providers.get(typeURI);
 188         }
 189         Equipment equipment = root.createEquipment();
 190         equipment.setType(typeURI);
 191         equipment.setGeometry(provider);
 192         root.addChild(equipment);
 193
 194         for (int i = 0; i < equipment.numberOfFixedNozzles(); i++) {
 195             createNozzle(root, equipment, new Item(nozzleTypeUri, "Nozzle"));
 196
 197         }
 198
 199         return equipment;
 200     }
 201
 202         public static InlineComponent createStraight(P3DRootNode root) throws Exception{
 203                 InlineComponent component = root.createInline();
 204                 component.setType(Plant3D.URIs.Builtin_Straight);
 205                 component.setGeometry(providers.get(Plant3D.URIs.Builtin_Straight));
 206                 return component;
 207         }
 208
 209         public static TurnComponent createTurn(P3DRootNode root) throws Exception {
 210                 TurnComponent elbow = root.createTurn();
 211                 elbow.setType(Plant3D.URIs.Builtin_Elbow);
 212                 elbow.setGeometry(providers.get(Plant3D.URIs.Builtin_Elbow));
 213                 return elbow;
 214         }
 215
 216         public static InlineComponent createReducer(P3DRootNode root) throws Exception {
 217                 InlineComponent component = root.createInline();
 218                 component.setType(Plant3D.URIs.Builtin_ConcentricReducer);
 219                 component.setGeometry(providers.get(Plant3D.URIs.Builtin_ConcentricReducer));
 220                 return component;
 221         }
 222
 223         public static InlineComponent createBranchSplit(P3DRootNode root) throws Exception {
 224                 InlineComponent component = root.createInline();
 225                 component.setType(Plant3D.URIs.Builtin_BranchSplitComponent);
 226                 return component;
 227         }
 228
 229         public static Equipment createEquipment(P3DRootNode root, Item equipmentType) throws Exception {
 230                 Equipment equipment = createEquipment(root, equipmentType.getUri());
 231                 String n = root.getUniqueName(equipmentType.getName());
 232                 equipment.setName(n);
 233                 return equipment;
 234         }
 235
 236         public static Equipment createEquipmentWithNozzles(P3DRootNode root, Item equipmentType, Item nozzleType) throws Exception {
 237         Equipment equipment = createEquipmentWithNozzles(root, equipmentType.getUri(), nozzleType.getUri());
 238         String n = root.getUniqueName(equipmentType.getName());
 239         equipment.setName(n);
 240         return equipment;
 241     }
 242
 243         public static Nozzle createDefaultNozzle(P3DRootNode root, Equipment equipment) throws Exception {
 244                 return createNozzle(root, equipment, new Item(Plant3D.URIs.Builtin_Nozzle, "Nozzle"));
 245         }
 246
 247         public static Nozzle createNozzle(P3DRootNode root, Equipment equipment, Item nozzleType) throws Exception {
 248                 Nozzle nozzle = root.createNozzle();
 249                 nozzle.setType(nozzleType.getUri());
 250                 String n = root.getUniqueName(nozzleType.getName());
 251                 nozzle.setName(n);
 252                 PipeRun pipeRun = new PipeRun();
 253                 n = root.getUniqueName("PipeRun");
 254                 pipeRun.setName(n);
 255                 nozzle.setPipeRun(pipeRun);
 256
 257                 equipment.addChild(nozzle);
 258                 root.addChild(pipeRun);
 259                 // root.getNodeMap().commit("Add nozzle " + n);
 260                 return nozzle;
 261         }
 262
 263         public static class InsertInstruction {
 264                 public String typeUri;
 265
 266                 public PositionType position = PositionType.NEXT;
 267                 public PositionType insertPosition = PositionType.NEXT;
 268
 269                 // Reducer requires pipe specs
 270                 public Double diameter;
 271                 public Double turnRadius;
 272
 273                 // Variable length
 274                 public Double length;
 275
 276                 // Variable angle
 277                 public Double angle;
 278
 279                 public String getTypeUri() {
 280                         return typeUri;
 281                 }
 282
 283                 public void setTypeUri(String typeUri) {
 284                         this.typeUri = typeUri;
 285                 }
 286
 287                 public PositionType getPosition() {
 288                         return position;
 289                 }
 290
 291                 public void setPosition(PositionType position) {
 292                         this.position = position;
 293                 }
 294
 295                 public PositionType getInsertPosition() {
 296                         return insertPosition;
 297                 }
 298
 299                 public void setInsertPosition(PositionType insertPosition) {
 300                         this.insertPosition = insertPosition;
 301                 }
 302
 303                 public Double getDiameter() {
 304                         return diameter;
 305                 }
 306
 307                 public void setDiameter(Double diameter) {
 308                         this.diameter = diameter;
 309                 }
 310
 311                 public Double getTurnRadius() {
 312                         return turnRadius;
 313                 }
 314
 315                 public void setTurnRadius(Double turnRadius) {
 316                         this.turnRadius = turnRadius;
 317                 }
 318
 319                 public Double getLength() {
 320                         return length;
 321                 }
 322
 323                 public void setLength(Double length) {
 324                         this.length = length;
 325                 }
 326
 327                 public Double getAngle() {
 328                         return angle;
 329                 }
 330
 331                 public void setAngle(Double angle) {
 332                         this.angle = angle;
 333                 }
 334
 335         }
 336
 337         public static PipelineComponent addComponent(P3DRootNode root, PipelineComponent component,  InsertInstruction inst) throws Exception {
 338
 339                 PipelineComponent newComponent = ComponentUtils.createComponent(root, inst.typeUri);
 340                 PipeControlPoint newPcp = newComponent.getControlPoint();
 341
 342                 PipeControlPoint toPcp = component.getControlPoint();
 343                 PipeRun pipeRun = toPcp.getPipeRun();
 344
 345                 String typeName = names.get(inst.typeUri);
 346                 if (typeName == null)
 347                         typeName = "Component";
 348
 349                 Vector3d dir = null;
 350                 Vector3d pos = null;
 351
 352                 PositionType position = inst.position;
 353                 PositionType insertPosition = inst.insertPosition;
 354                 boolean lengthAdjustable = false;
 355                 if (newComponent instanceof InlineComponent) {
 356                         lengthAdjustable = ((InlineComponent)newComponent).isVariableLength() || ((InlineComponent)newComponent).isModifialble();
 357                 }
 358                 boolean insertAdjustable = false;
 359                 if (component instanceof InlineComponent) {
 360                         insertAdjustable = ((InlineComponent)component).isVariableLength();
 361                 }
 362                 boolean sizeChange = false;
 363                 if (newComponent instanceof InlineComponent) {
 364                         sizeChange = ((InlineComponent)newComponent).isSizeChange();
 365                 }
 366
 367                 if (toPcp.isInline()) {
 368                         switch (position) {
 369                         case NEXT:
 370                                 if (toPcp.isDualInline()) {
 371                                         toPcp = toPcp.getDualSub();
 372                                         pipeRun = toPcp.getPipeRun();
 373                                 }
 374
 375                                 break;
 376                         case PREVIOUS:
 377                                 if (toPcp.isDualSub()) {
 378                                         toPcp = toPcp.parent;
 379                                         pipeRun = toPcp.getPipeRun();
 380                                 }
 381                                 break;
 382                         default:
 383                                 break;
 384                         }
 385                         Vector3d start = new Vector3d();
 386                         Vector3d end = new Vector3d();
 387                         dir = new Vector3d();
 388                         toPcp.getInlineControlPointEnds(start, end, dir);
 389                         dir.normalize();
 390                         switch (position) {
 391                         case NEXT:
 392                                 pos = new Vector3d(end);
 393                                 break;
 394                         case PREVIOUS:
 395                                 pos = new Vector3d(start);
 396                                 break;
 397                         case SPLIT:
 398                                 pos = new Vector3d(toPcp.getWorldPosition());
 399                                 break;
 400                         default:
 401                                 break;
 402                         }
 403
 404                 } else if (toPcp.isDirected()) {
 405                         dir = new Vector3d(toPcp.getDirection(Direction.NEXT));
 406                         pos = new Vector3d(toPcp.getWorldPosition());
 407                 } else if (toPcp.isTurn() && toPcp.asFixedAngle()) {
 408                         dir = new Vector3d(toPcp.getDirection(position == PositionType.NEXT ? Direction.NEXT : Direction.PREVIOUS));
 409                         pos = new Vector3d(toPcp.getWorldPosition());
 410                         if (!lengthAdjustable) {
 411                                 Vector3d v = new Vector3d(dir);
 412                                 v.scale(toPcp.getInlineLength());
 413                                 pos.add(v);
 414                         } else {
 415                                 if (insertPosition == PositionType.NEXT) {
 416                                         Vector3d v = new Vector3d(dir);
 417                                         v.scale(toPcp.getInlineLength());
 418                                         pos.add(v);
 419                                 } else if (insertPosition == PositionType.SPLIT) {
 420                                         // scale 0.5*length so that we don't remove the length twice from the new component
 421                                         Vector3d v = new Vector3d(dir);
 422                                         v.scale(toPcp.getInlineLength()*0.5);
 423                                         pos.add(v);
 424                                 }
 425                         }
 426                 }
 427
 428
 429                 if (!sizeChange) {
 430                         String name = component.getPipeRun().getUniqueName(typeName);
 431                         newComponent.setName(name);
 432
 433                         pipeRun.addChild(newComponent);
 434
 435                         if (newComponent instanceof InlineComponent) {
 436                             InlineComponent inlineComponent = (InlineComponent)newComponent;
 437                             if (inlineComponent.isVariableLength()|| inlineComponent.isModifialble()) {
 438                                 newPcp.setLength(inst.length);
 439                                 newComponent.setParameter("length", inst.length);
 440                             }
 441                         } else if (newComponent instanceof TurnComponent) {
 442                             TurnComponent turnComponent = (TurnComponent)newComponent;
 443                             if  (turnComponent.isVariableAngle()) {
 444                                 newPcp.setTurnAngle(inst.angle);
 445                                 newComponent.setParameter("turnAngle", inst.angle);
 446                             }
 447                         }
 448
 449                         newComponent.updateParameters();
 450
 451                         Vector3d v = new Vector3d(dir);
 452                         if (insertAdjustable) {
 453                                 if (insertPosition == PositionType.NEXT)
 454                                         v.scale(newComponent.getControlPoint().getInlineLength());
 455                                 else if (insertPosition == PositionType.SPLIT)
 456                                         v.set(0, 0, 0);
 457                                 else if (insertPosition == PositionType.PREVIOUS)
 458                                         v.scale(-newComponent.getControlPoint().getInlineLength());
 459                         } else {
 460                                 v.scale(newComponent.getControlPoint().getInlineLength());
 461                         }
 462                         switch (position) {
 463                         case NEXT:
 464                                 pos.add(v);
 465                                 break;
 466                         case PREVIOUS:
 467                                 pos.sub(v);
 468                                 break;
 469                         case SPLIT:
 470                                 break;
 471                         default:
 472                                 break;
 473                         }
 474
 475                         switch (position) {
 476                         case NEXT:
 477                                 if (toPcp.isDualInline())
 478                                         toPcp = toPcp.getDualSub();
 479                                 newPcp.insert(toPcp, Direction.NEXT);
 480                                 newPcp.setWorldPosition(pos);
 481                                 break;
 482                         case PREVIOUS:
 483                                 if (toPcp.isDualSub())
 484                                         toPcp = toPcp.parent;
 485                                 newPcp.insert(toPcp, Direction.PREVIOUS);
 486                                 newPcp.setWorldPosition(pos);
 487                                 break;
 488                         case SPLIT:
 489                                 PipingRules.splitVariableLengthComponent(newComponent, (InlineComponent)component, true);
 490                         default:
 491                                 break;
 492                         }
 493                 } else {
 494                         PipeRun other = new PipeRun();
 495                         String n = root.getUniqueName("PipeRun");
 496                         other.setName(n);
 497                         other.setPipeDiameter(inst.diameter);
 498                         other.setTurnRadius(inst.turnRadius);
 499                         root.addChild(other);
 500
 501
 502                         if (position == PositionType.NEXT) {
 503                                 PipingRules.addSizeChange(false, pipeRun, other, (InlineComponent)newComponent, toPcp, null);
 504                         } else if (position == PositionType.PREVIOUS){
 505                                 PipingRules.addSizeChange(true, pipeRun, other, (InlineComponent)newComponent, toPcp, null);
 506                         }
 507                         newPcp.setWorldPosition(pos);
 508                         // TODO : chicken-egg problem
 509                         newComponent.updateParameters();
 510                         Vector3d v = new Vector3d(dir);
 511                         v.scale(newComponent.getControlPoint().getLength()*0.5);
 512                         switch (position) {
 513                         case NEXT:
 514                                 pos.add(v);
 515                                 break;
 516                         case PREVIOUS:
 517                                 pos.sub(v);
 518                                 break;
 519                         case SPLIT:
 520                                 break;
 521                         default:
 522                                 break;
 523                         }
 524                         newPcp.setWorldPosition(pos);
 525
 526                 }
 527
 528
 529                 return newComponent;
 530         }
 531         public static boolean connect(PipelineComponent current, PipelineComponent endTo) throws Exception {
 532                 return connect(current, endTo, null, null);
 533         }
 534
 535         /**
 536          * Connects component to another component
 537          * @param current
 538          * @param endTo
 539          * @param endType
 540          * @param position
 541          * @return
 542          * @throws Exception
 543          */
 544         public static boolean connect(PipelineComponent current, PipelineComponent endTo, PositionType endType, Vector3d position) throws Exception{
 545                 PipeControlPoint endCP = endTo.getControlPoint();
 546                 boolean reversed;
 547                 if (current.getNext() == null)
 548                         reversed = false;
 549                 else if (current.getPrevious() == null)
 550                         reversed = true;
 551                 else
 552                         return false;
 553
 554                 PipeRun pipeRun = current.getPipeRun();
 555                 P3DRootNode root = (P3DRootNode)current.getRootNode();
 556                 PipeControlPoint currentCP = current.getControlPoint();
 557
 558                 if (endType == null || endType == PositionType.NEXT || endType == PositionType.PREVIOUS) {
 559
 560
 561
 562                         boolean requiresReverse = false;
 563                         if (!reversed && endCP.getPrevious() != null) {
 564                                 if (endCP.getNext() != null)
 565                                         return false;
 566                                 requiresReverse = true;
 567                         } else if (reversed && endCP.getNext() != null) {
 568                                 if (endCP.getPrevious() != null)
 569                                         return false;
 570                                 requiresReverse = true;
 571                         }
 572                         PipeRun other = endCP.getPipeRun();
 573                         boolean mergeRuns = other == null ? true : pipeRun.canMerge(other);
 574
 575                         if (requiresReverse) {
 576                                 // Pipe line must be traversible with next/previous relations without direction change.
 577                                 // Now the component, where we are connecting the created pipeline is defined in different order.
 578                                 PipingRules.reverse(other);
 579
 580                         }
 581
 582                         if (mergeRuns) {
 583                                 // Runs have compatible specs and must be merged
 584                                 if (other != null && pipeRun != other)
 585                                         pipeRun.merge(other);
 586                                 else if (other == null) {
 587                                         if (!(endTo instanceof Nozzle)) {
 588                                                 pipeRun.addChild(endTo);
 589                                         } else {
 590                                                 endTo.setPipeRun(pipeRun);
 591                                         }
 592                                 }
 593                                 if (!reversed) {
 594                                         currentCP.setNext(endCP);
 595                                         endCP.setPrevious(currentCP);
 596                                 } else {
 597                                         currentCP.setPrevious(endCP);
 598                                         endCP.setNext(currentCP);
 599                                 }
 600                         } else {
 601                                 // Runs do not have compatible specs, and a reducer must be attached in between.
 602                                 InlineComponent reducer = ComponentUtils.createReducer(root);
 603                                 PipeControlPoint pcp = reducer.getControlPoint();
 604
 605                                 Vector3d endPos = endCP.getWorldPosition();
 606                                 Vector3d currentPos = currentCP.getWorldPosition();
 607                                 Vector3d v = new Vector3d(endPos);
 608                                 v.sub(currentPos);
 609                                 v.scale(0.5);
 610                                 v.add(currentPos);
 611
 612                                 PipingRules.addSizeChange(reversed, pipeRun, other, reducer, currentCP, endCP);
 613
 614                                 pcp.setWorldPosition(v);
 615                                 reducer.updateParameters();
 616                         }
 617                         PipingRules.positionUpdate(endCP);
 618                         return true;
 619
 620                 } else if (endType == PositionType.SPLIT) {
 621                         InlineComponent branchSplit = createBranchSplit((InlineComponent)endTo, position);
 622                         if (branchSplit == null)
 623                                 return false;
 624                         PipeControlPoint branchSplitCP = branchSplit.getControlPoint();
 625                         PipeControlPoint pcp = new PipeControlPoint(branchSplit,pipeRun);
 626                         branchSplitCP.children.add(pcp);
 627                         pcp.parent = branchSplitCP;
 628                         pcp.setWorldOrientation(branchSplitCP.getWorldOrientation());
 629                         pcp.setWorldPosition(branchSplitCP.getWorldPosition());
 630
 631
 632                         if(!reversed) {
 633                                 pcp.setPrevious(currentCP);
 634                                 currentCP.setNext(pcp);
 635                         } else {
 636                                 pcp.setNext(currentCP);
 637                                 currentCP.setPrevious(pcp);
 638                         }
 639                         PipingRules.positionUpdate(endCP);
 640                         return true;
 641                 }
 642                 return false;
 643         }
 644
 645         public static InlineComponent createBranchSplit(InlineComponent component, Vector3d pos) throws Exception{
 646                 if (!component.isVariableLength())
 647                         return null;
 648                 PipeRun pipeRun = component.getPipeRun();
 649                 Vector3d sStart = new Vector3d();
 650                 Vector3d sEnd = new Vector3d();
 651                 component.getControlPoint().getInlineControlPointEnds(sStart, sEnd);
 652
 653                 if (MathTools.distance(sStart, sEnd) < (pipeRun.getPipeDiameter()*0.5))
 654                         return null;
 655
 656
 657                 Vector3d p = MathTools.closestPointOnEdge(new Vector3d(pos), sStart, sEnd);
 658                 if (p == sStart) {
 659                         Vector3d v = new Vector3d(sEnd);
 660                         v.sub(sStart);
 661                         v.normalize();
 662                         v.scale(component.getPipeRun().getPipeDiameter()*0.5);
 663                         p.add(v);
 664                 } else if (p == sEnd) {
 665                         Vector3d v = new Vector3d(sStart);
 666                         v.sub(sEnd);
 667                         v.normalize();
 668                         v.scale(component.getPipeRun().getPipeDiameter()*0.5);
 669                         p.add(v);
 670                 }
 671
 672                 P3DRootNode root = (P3DRootNode)component.getRootNode();
 673                 InlineComponent branchSplit = ComponentUtils.createBranchSplit(root);
 674                 String branchName = component.getPipeRun().getUniqueName("Branch");
 675                 branchSplit.setName(branchName);
 676                 component.getPipeRun().addChild(branchSplit);
 677                 PipeControlPoint branchSplitCP = branchSplit.getControlPoint();
 678                 branchSplitCP.setWorldPosition(p);
 679                 PipingRules.splitVariableLengthComponent(branchSplit, component, false);
 680                 return branchSplit;
 681         }
 682 }