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.Collection;
   5 import java.util.HashMap;
   6 import java.util.List;
   7 import java.util.Map;
   8 import java.util.stream.Collectors;
   9
  10 import javax.vecmath.Vector3d;
  11
  12 import org.simantics.Simantics;
  13 import org.simantics.db.ReadGraph;
  14 import org.simantics.db.RequestProcessor;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.common.request.ReadRequest;
  17 import org.simantics.db.common.utils.NameUtils;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.g3d.math.MathTools;
  20 import org.simantics.g3d.scenegraph.GeometryProvider;
  21 import org.simantics.g3d.scenegraph.ParametricGeometryProvider;
  22 import org.simantics.layer0.Layer0;
  23 import org.simantics.plant3d.geometry.ParameterRead;
  24 import org.simantics.plant3d.ontology.Plant3D;
  25 import org.simantics.plant3d.scenegraph.EndComponent;
  26 import org.simantics.plant3d.scenegraph.Equipment;
  27 import org.simantics.plant3d.scenegraph.InlineComponent;
  28 import org.simantics.plant3d.scenegraph.Nozzle;
  29 import org.simantics.plant3d.scenegraph.P3DRootNode;
  30 import org.simantics.plant3d.scenegraph.PipeRun;
  31 import org.simantics.plant3d.scenegraph.PipelineComponent;
  32 import org.simantics.plant3d.scenegraph.TurnComponent;
  33 import org.simantics.plant3d.scenegraph.controlpoint.PipeControlPoint;
  34 import org.simantics.plant3d.scenegraph.controlpoint.PipeControlPoint.Direction;
  35 import org.simantics.plant3d.scenegraph.controlpoint.PipeControlPoint.PositionType;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38 import org.simantics.plant3d.scenegraph.controlpoint.PipingRules;
  39
  40 public class ComponentUtils {
  41
  42         private final static Logger LOGGER = LoggerFactory.getLogger(ComponentUtils.class);
  43
  44         private static Map<String,Class<? extends PipelineComponent>> clazzes = new HashMap<String, Class<? extends PipelineComponent>>();
  45         private static Map<String,GeometryProvider> providers = new HashMap<String,GeometryProvider>();
  46         private static Map<String,String> names = new HashMap<String,String>();
  47
  48         public static void preloadCache(RequestProcessor session) {
  49                 try {
  50                         session.syncRequest(new ReadRequest() {
  51
  52                                 @Override
  53                                 public void run(ReadGraph graph) throws DatabaseException {
  54                                         List<String> types = new ArrayList<String>();
  55                                         types.add(Plant3D.URIs.Builtin_Straight);
  56                                         types.add(Plant3D.URIs.Builtin_Elbow);
  57                                         types.add(Plant3D.URIs.Builtin_ConcentricReducer);
  58                                         types.add(Plant3D.URIs.Builtin_BranchSplitComponent);
  59                                         types.add(Plant3D.URIs.Builtin_EccentricReducer);
  60                                         types.add(Plant3D.URIs.Builtin_Elbow45);
  61                                         types.add(Plant3D.URIs.Builtin_Elbow90);
  62
  63                                         for (String typeURI : types) {
  64                                                 load(graph, typeURI);
  65                                         }
  66                                 }
  67                         });
  68                 } catch (DatabaseException e) {
  69                         LOGGER.error("ComponentUtils.preloadCache() failed unexpectedly", e);
  70                 }
  71         }
  72
  73         private static GeometryProvider getProvider(ReadGraph graph, Resource type) throws DatabaseException {
  74
  75                 Layer0 l0 = Layer0.getInstance(graph);
  76                 Plant3D p3d = Plant3D.getInstance(graph);
  77                 Resource geom = graph.getPossibleObject(type,p3d.hasGeometry);
  78                 if (geom == null) {
  79                         for (Resource a : graph.getObjects(type, l0.Asserts)) {
  80                                 if (p3d.hasGeometry.equals(graph.getPossibleObject(a, l0.HasPredicate))) {
  81                                         geom = graph.getPossibleObject(a, l0.HasObject);
  82                                         break;
  83                                 }
  84                         }
  85                 }
  86                 if (geom != null) {
  87                         GeometryProvider provider = graph.adapt(geom, GeometryProvider.class);
  88                         if (provider instanceof ParametricGeometryProvider) {
  89                         Map<String,Object> params = graph.syncRequest(new ParameterRead(type));
  90                         if (params.size() > 0)
  91                             ((ParametricGeometryProvider)provider).setProperties(params);
  92                         }
  93                         return provider;
  94                 }
  95                 return null;
  96         }
  97
  98         private static Class<? extends PipelineComponent> getClazz(ReadGraph graph, Resource type) throws DatabaseException {
  99                 Plant3D p3d = Plant3D.getInstance(graph);
 100                 if (graph.isInheritedFrom(type, p3d.InlineComponent))
 101                         return InlineComponent.class;
 102                 if (graph.isInheritedFrom(type, p3d.TurnComponent))
 103                         return TurnComponent.class;
 104                 if (graph.isInheritedFrom(type, p3d.EndComponent))
 105                         return EndComponent.class;
 106                 if (graph.isInheritedFrom(type, p3d.Nozzle))
 107                         return Nozzle.class;
 108                 return null;
 109         }
 110
 111         private static void load(ReadGraph graph, String typeURI) throws DatabaseException {
 112                 Plant3D p3d = Plant3D.getInstance(graph);
 113                 Resource type = graph.getResource(typeURI);
 114
 115                 GeometryProvider provider = getProvider(graph, type);
 116                 if (provider != null || graph.hasStatement(type,p3d.NonVisibleComponent)) {
 117                         providers.put(typeURI, provider);
 118                         if (graph.isInheritedFrom(type, p3d.PipelineComponent))
 119                                 clazzes.put(typeURI,getClazz(graph, type));
 120                         names.put(typeURI, NameUtils.getSafeName(graph, type));
 121                         return;
 122                 }
 123                 throw new DatabaseException("Cannot find component for " + typeURI);
 124         }
 125
 126         private static void load(final String typeURI) throws DatabaseException {
 127                 Simantics.getSession().syncRequest(new ReadRequest() {
 128
 129                         @Override
 130                         public void run(ReadGraph graph) throws DatabaseException {
 131                                 load(graph,typeURI);
 132                         }
 133                 });
 134         }
 135
 136         /**
 137          * Creates a component
 138          *
 139          * Does not set the name or add the component to a piperun.
 140          * @param root
 141          * @param typeURI
 142          * @return
 143          * @throws Exception
 144          */
 145         public static PipelineComponent createComponent(P3DRootNode root, String typeURI) throws Exception {
 146                 Class<? extends PipelineComponent> type = clazzes.get(typeURI);
 147                 GeometryProvider provider = providers.get(typeURI);
 148                 if (type == null || provider == null) {
 149                         load(typeURI);
 150                         type = clazzes.get(typeURI);
 151                         provider = providers.get(typeURI);
 152                 }
 153                 //PipelineComponent component = type.newInstance();
 154                 PipelineComponent component = null;
 155                 if (type == InlineComponent.class) {
 156                         component = root.createInline();
 157                 } else if (type == TurnComponent.class) {
 158                         component = root.createTurn();
 159                 } else if (type == EndComponent.class) {
 160                         component = root.createTurn();
 161                 } else if (type == Nozzle.class) {
 162                         component = root.createNozzle();
 163                 }
 164                 component.setType(typeURI);
 165                 component.setGeometry(provider);
 166                 return component;
 167         }
 168
 169         /**
 170          * Creates a equipment
 171          *
 172          * Does not set the name
 173          *
 174          * @param root
 175          * @param typeURI
 176          * @return
 177          * @throws Exception
 178          */
 179
 180         public static Equipment createEquipment(P3DRootNode root, String typeURI) throws Exception {
 181                 GeometryProvider provider = providers.get(typeURI);
 182                 if (provider == null) {
 183                         load(typeURI);
 184                         provider = providers.get(typeURI);
 185                 }
 186                 Equipment equipment = root.createEquipment();
 187                 equipment.setType(typeURI);
 188                 equipment.setGeometry(provider);
 189                 root.addChild(equipment);
 190                 return equipment;
 191         }
 192
 193         public static Equipment createEquipmentWithNozzles(P3DRootNode root, String typeURI, String nozzleTypeUri) throws Exception {
 194         GeometryProvider provider = providers.get(typeURI);
 195         if (provider == null) {
 196             load(typeURI);
 197             provider = providers.get(typeURI);
 198         }
 199         Equipment equipment = root.createEquipment();
 200         equipment.setType(typeURI);
 201         equipment.setGeometry(provider);
 202         root.addChild(equipment);
 203
 204         for (int i = 0; i < equipment.numberOfFixedNozzles(); i++) {
 205             createNozzle(root, equipment, new Item(nozzleTypeUri, "Nozzle"));
 206
 207         }
 208
 209         return equipment;
 210     }
 211
 212         public static InlineComponent createStraight(P3DRootNode root) throws Exception{
 213                 InlineComponent component = root.createInline();
 214                 component.setType(Plant3D.URIs.Builtin_Straight);
 215                 component.setGeometry(providers.get(Plant3D.URIs.Builtin_Straight));
 216                 return component;
 217         }
 218
 219         public static TurnComponent createTurn(P3DRootNode root) throws Exception {
 220                 TurnComponent elbow = root.createTurn();
 221                 elbow.setType(Plant3D.URIs.Builtin_Elbow);
 222                 elbow.setGeometry(providers.get(Plant3D.URIs.Builtin_Elbow));
 223                 return elbow;
 224         }
 225
 226         public static InlineComponent createReducer(P3DRootNode root) throws Exception {
 227                 InlineComponent component = root.createInline();
 228                 component.setType(Plant3D.URIs.Builtin_ConcentricReducer);
 229                 component.setGeometry(providers.get(Plant3D.URIs.Builtin_ConcentricReducer));
 230                 return component;
 231         }
 232
 233         public static InlineComponent createBranchSplit(P3DRootNode root) throws Exception {
 234                 InlineComponent component = root.createInline();
 235                 component.setType(Plant3D.URIs.Builtin_BranchSplitComponent);
 236                 return component;
 237         }
 238
 239         public static Equipment createEquipment(P3DRootNode root, Item equipmentType) throws Exception {
 240                 Equipment equipment = createEquipment(root, equipmentType.getUri());
 241                 String n = root.getUniqueName(equipmentType.getName());
 242                 equipment.setName(n);
 243                 return equipment;
 244         }
 245
 246         public static Equipment createEquipmentWithNozzles(P3DRootNode root, Item equipmentType, Item nozzleType) throws Exception {
 247         Equipment equipment = createEquipmentWithNozzles(root, equipmentType.getUri(), nozzleType.getUri());
 248         String n = root.getUniqueName(equipmentType.getName());
 249         equipment.setName(n);
 250         return equipment;
 251     }
 252
 253         public static Nozzle createDefaultNozzle(P3DRootNode root, Equipment equipment) throws Exception {
 254                 return createNozzle(root, equipment, new Item(Plant3D.URIs.Builtin_Nozzle, "Nozzle"));
 255         }
 256
 257         public static Nozzle createNozzle(P3DRootNode root, Equipment equipment, Item nozzleType) throws Exception {
 258                 Nozzle nozzle = root.createNozzle();
 259                 nozzle.setType(nozzleType.getUri());
 260                 String n = root.getUniqueName(nozzleType.getName());
 261                 nozzle.setName(n);
 262                 PipeRun pipeRun = new PipeRun();
 263                 n = root.getUniqueName("PipeRun");
 264                 pipeRun.setName(n);
 265                 nozzle.setPipeRun(pipeRun);
 266
 267                 equipment.addChild(nozzle);
 268                 root.addChild(pipeRun);
 269                 // root.getNodeMap().commit("Add nozzle " + n);
 270                 return nozzle;
 271         }
 272
 273         public static class InsertInstruction {
 274                 public String typeUri;
 275
 276                 public PositionType position = PositionType.NEXT;
 277                 public PositionType insertPosition = PositionType.NEXT;
 278
 279                 // Component name
 280                 public String name;
 281
 282                 // Reducer requires pipe specs
 283                 public Double diameter;
 284                 public Double turnRadius;
 285
 286                 // Variable length
 287                 public Double length;
 288
 289                 // Variable angle
 290                 public Double angle;
 291
 292                 // Rotation angle used with turns and rotated inline.
 293                 public Double rotationAngle;
 294
 295                 public String getTypeUri() {
 296                         return typeUri;
 297                 }
 298
 299                 public void setTypeUri(String typeUri) {
 300                         this.typeUri = typeUri;
 301                 }
 302
 303                 public PositionType getPosition() {
 304                         return position;
 305                 }
 306
 307                 public void setPosition(PositionType position) {
 308                         this.position = position;
 309                 }
 310
 311                 public PositionType getInsertPosition() {
 312                         return insertPosition;
 313                 }
 314
 315                 public void setInsertPosition(PositionType insertPosition) {
 316                         this.insertPosition = insertPosition;
 317                 }
 318
 319                 public String getName() {
 320                         return name;
 321                 }
 322
 323                 public void setName(String name) {
 324                         this.name = name;
 325                 }
 326
 327                 public Double getDiameter() {
 328                         return diameter;
 329                 }
 330
 331                 public void setDiameter(Double diameter) {
 332                         this.diameter = diameter;
 333                 }
 334
 335                 public Double getTurnRadius() {
 336                         return turnRadius;
 337                 }
 338
 339                 public void setTurnRadius(Double turnRadius) {
 340                         this.turnRadius = turnRadius;
 341                 }
 342
 343                 public Double getLength() {
 344                         return length;
 345                 }
 346
 347                 public void setLength(Double length) {
 348                         this.length = length;
 349                 }
 350
 351                 public Double getAngle() {
 352                         return angle;
 353                 }
 354
 355                 public void setAngle(Double angle) {
 356                         this.angle = angle;
 357                 }
 358
 359                 public Double getRotationAngle() {
 360             return rotationAngle;
 361         }
 362
 363                 public void setRotationAngle(Double rotationAngle) {
 364             this.rotationAngle = rotationAngle;
 365         }
 366
 367         }
 368
 369         public static PipelineComponent addComponent(P3DRootNode root, PipelineComponent component,  InsertInstruction inst) throws Exception {
 370
 371                 PipelineComponent newComponent = ComponentUtils.createComponent(root, inst.typeUri);
 372                 if (inst.name != null)
 373                         newComponent.setName(inst.name);
 374
 375                 PipeControlPoint newPcp = newComponent.getControlPoint();
 376
 377                 PipeControlPoint toPcp = component.getControlPoint();
 378                 PipeRun pipeRun = toPcp.getPipeRun();
 379
 380                 String typeName = names.get(inst.typeUri);
 381                 if (typeName == null)
 382                         typeName = "Component";
 383
 384                 Vector3d dir = null;
 385                 Vector3d pos = null;
 386
 387                 PositionType position = inst.position;
 388                 PositionType insertPosition = inst.insertPosition;
 389                 boolean lengthAdjustable = false;
 390                 if (newComponent instanceof InlineComponent) {
 391                         lengthAdjustable = ((InlineComponent)newComponent).isVariableLength() || ((InlineComponent)newComponent).isModifialble();
 392                 }
 393                 boolean insertAdjustable = false;
 394                 if (component instanceof InlineComponent) {
 395                         insertAdjustable = ((InlineComponent)component).isVariableLength();
 396                 }
 397                 boolean sizeChange = false;
 398                 if (newComponent instanceof InlineComponent) {
 399                         sizeChange = ((InlineComponent)newComponent).isSizeChange();
 400                 }
 401
 402                 if (toPcp.isInline()) {
 403                         switch (position) {
 404                         case NEXT:
 405                                 if (toPcp.isDualInline()) {
 406                                         toPcp = toPcp.getDualSub();
 407                                         pipeRun = toPcp.getPipeRun();
 408                                 }
 409
 410                                 break;
 411                         case PREVIOUS:
 412                                 if (toPcp.isDualSub()) {
 413                                         toPcp = toPcp.parent;
 414                                         pipeRun = toPcp.getPipeRun();
 415                                 }
 416                                 break;
 417                         default:
 418                                 break;
 419                         }
 420                         Vector3d start = new Vector3d();
 421                         Vector3d end = new Vector3d();
 422                         dir = new Vector3d();
 423                         toPcp.getInlineControlPointEnds(start, end, dir);
 424                         dir.normalize();
 425                         switch (position) {
 426                         case NEXT:
 427                                 pos = new Vector3d(end);
 428                                 break;
 429                         case PREVIOUS:
 430                                 pos = new Vector3d(start);
 431                                 break;
 432                         case SPLIT:
 433                                 pos = new Vector3d(toPcp.getWorldPosition());
 434                                 break;
 435                         default:
 436                                 break;
 437                         }
 438
 439                 } else if (toPcp.isDirected()) {
 440                         dir = new Vector3d(toPcp.getDirection(Direction.NEXT));
 441                         pos = new Vector3d(toPcp.getWorldPosition());
 442                 } else if (toPcp.isTurn() && toPcp.asFixedAngle()) {
 443                         dir = new Vector3d(toPcp.getDirection(position == PositionType.NEXT ? Direction.NEXT : Direction.PREVIOUS));
 444                         pos = new Vector3d(toPcp.getWorldPosition());
 445                         if (!lengthAdjustable) {
 446                                 Vector3d v = new Vector3d(dir);
 447                                 v.scale(toPcp.getInlineLength());
 448                                 pos.add(v);
 449                         } else {
 450                                 if (insertPosition == PositionType.NEXT) {
 451                                         Vector3d v = new Vector3d(dir);
 452                                         v.scale(toPcp.getInlineLength());
 453                                         pos.add(v);
 454                                 } else if (insertPosition == PositionType.SPLIT) {
 455                                         // scale 0.5*length so that we don't remove the length twice from the new component
 456                                         Vector3d v = new Vector3d(dir);
 457                                         v.scale(toPcp.getInlineLength()*0.5);
 458                                         pos.add(v);
 459                                 }
 460                         }
 461                 }
 462
 463                 String name = component.getPipeRun().getUniqueName(typeName);
 464                 newComponent.setName(name);
 465
 466                 pipeRun.addChild(newComponent);
 467                 if (newPcp.isSizeChange())
 468                         newComponent.setAlternativePipeRun(pipeRun);
 469
 470                 if (newComponent instanceof InlineComponent) {
 471                     InlineComponent inlineComponent = (InlineComponent)newComponent;
 472                     if (inlineComponent.isVariableLength()|| inlineComponent.isModifialble()) {
 473                         newPcp.setLength(inst.length);
 474                         newComponent.setParameter("length", inst.length);
 475                     }
 476                     if (inst.rotationAngle != null)
 477                         ((InlineComponent) newComponent).setRotationAngle(inst.rotationAngle);
 478                 } else if (newComponent instanceof TurnComponent) {
 479                     TurnComponent turnComponent = (TurnComponent)newComponent;
 480                     if  (turnComponent.isVariableAngle()) {
 481                                 newPcp.setTurnAngle(inst.angle);
 482                                 newComponent.setParameter("turnAngle", inst.angle);
 483                     }
 484                     if (inst.rotationAngle != null)
 485                 ((TurnComponent) newComponent).setRotationAngle(inst.rotationAngle);
 486                 }
 487
 488
 489                 newComponent.updateParameters();
 490
 491                 Vector3d v = new Vector3d(dir);
 492                 if (insertAdjustable) {
 493                         if (insertPosition == PositionType.NEXT)
 494                                 v.scale(newComponent.getControlPoint().getInlineLength());
 495                         else if (insertPosition == PositionType.SPLIT)
 496                                 v.set(0, 0, 0);
 497                         else if (insertPosition == PositionType.PREVIOUS)
 498                                 v.scale(-newComponent.getControlPoint().getInlineLength());
 499                 } else {
 500                         v.scale(newComponent.getControlPoint().getInlineLength());
 501                 }
 502                 switch (position) {
 503                 case NEXT:
 504                         pos.add(v);
 505                         break;
 506                 case PREVIOUS:
 507                         pos.sub(v);
 508                         break;
 509                 case SPLIT:
 510                         break;
 511                 default:
 512                         break;
 513                 }
 514
 515                 switch (position) {
 516                 case NEXT:
 517                         if (toPcp.isDualInline())
 518                                 toPcp = toPcp.getDualSub();
 519                         newPcp.insert(toPcp, Direction.NEXT);
 520                         newPcp.setWorldPosition(pos);
 521                         break;
 522                 case PREVIOUS:
 523                         if (toPcp.isDualSub())
 524                                 toPcp = toPcp.parent;
 525                         newPcp.insert(toPcp, Direction.PREVIOUS);
 526                         newPcp.setWorldPosition(pos);
 527                         break;
 528                 case SPLIT:
 529                         PipingRules.splitVariableLengthComponent(newComponent, (InlineComponent)component, true);
 530                 default:
 531                         break;
 532                 }
 533
 534                 // Move the size change and the rest of the components in the pipe run to a new pipe run
 535                 if (sizeChange) {
 536                         PipeRun other = new PipeRun();
 537                         String n = root.getUniqueName("PipeRun");
 538                         other.setName(n);
 539                         other.setPipeDiameter(inst.diameter);
 540                         other.setTurnRadius(inst.turnRadius);
 541                         root.addChild(other);
 542
 543                         other.addChild(newComponent.getControlPoint().getDualSub());
 544                         newComponent.setAlternativePipeRun(other);
 545
 546                         boolean forward = position != PositionType.PREVIOUS;
 547                         PipelineComponent comp = forward ? newComponent.getNext() : newComponent.getPrevious();
 548                         while (comp != null && comp.getPipeRun() == pipeRun) {
 549                                 if (comp.getParent() == pipeRun) {
 550                                         comp.deattach();
 551                                         other.addChild(comp);
 552                                 } else {
 553                                         comp.setPipeRun(other);
 554                                 }
 555
 556                                 // Reset parameters to match new pipe run
 557                                 comp.updateParameters();
 558
 559                                 comp = forward ? comp.getNext() : comp.getPrevious();
 560                         }
 561
 562                         newComponent.updateParameters();
 563                 }
 564
 565                 return newComponent;
 566         }
 567
 568         public static boolean connect(PipelineComponent current, PipelineComponent endTo) throws Exception {
 569                 return connect(current, endTo, null, null);
 570         }
 571
 572         /**
 573          * Connects component to another component
 574          * @param current
 575          * @param endTo
 576          * @param endType
 577          * @param position
 578          * @return
 579          * @throws Exception
 580          */
 581         public static boolean connect(PipelineComponent current, PipelineComponent endTo, PositionType endType, Vector3d position) throws Exception{
 582                 PipeControlPoint endCP = endTo.getControlPoint();
 583                 boolean reversed;
 584                 if (current.getNext() == null)
 585                         reversed = false;
 586                 else if (current.getPrevious() == null)
 587                         reversed = true;
 588                 else
 589                         return false;
 590
 591                 PipeRun pipeRun = current.getPipeRun();
 592                 P3DRootNode root = (P3DRootNode)current.getRootNode();
 593                 PipeControlPoint currentCP = current.getControlPoint();
 594
 595                 if (endType == null || endType == PositionType.NEXT || endType == PositionType.PREVIOUS) {
 596
 597
 598
 599                         boolean requiresReverse = false;
 600                         if (!reversed && endCP.getPrevious() != null) {
 601                                 if (endCP.getNext() != null)
 602                                         return false;
 603                                 requiresReverse = true;
 604                         } else if (reversed && endCP.getNext() != null) {
 605                                 if (endCP.getPrevious() != null)
 606                                         return false;
 607                                 requiresReverse = true;
 608                         }
 609                         PipeRun other = endCP.getPipeRun();
 610                         boolean mergeRuns = other == null ? true : pipeRun.canMerge(other);
 611
 612                         if (requiresReverse) {
 613                                 // Pipe line must be traversible with next/previous relations without direction change.
 614                                 // Now the component, where we are connecting the created pipeline is defined in different order.
 615                                 PipingRules.reverse(other);
 616
 617                         }
 618
 619                         if (mergeRuns) {
 620                                 // Runs have compatible specs and must be merged
 621                                 if (other != null && pipeRun != other)
 622                                         pipeRun.merge(other);
 623                                 else if (other == null) {
 624                                         if (!(endTo instanceof Nozzle)) {
 625                                                 pipeRun.addChild(endTo);
 626                                         } else {
 627                                                 endTo.setPipeRun(pipeRun);
 628                                         }
 629                                 }
 630                                 if (!reversed) {
 631                                         currentCP.setNext(endCP);
 632                                         endCP.setPrevious(currentCP);
 633                                 } else {
 634                                         currentCP.setPrevious(endCP);
 635                                         endCP.setNext(currentCP);
 636                                 }
 637                         } else {
 638                                 // Runs do not have compatible specs, and a reducer must be attached in between.
 639                                 InlineComponent reducer = ComponentUtils.createReducer(root);
 640                                 PipeControlPoint pcp = reducer.getControlPoint();
 641
 642                                 Vector3d endPos = endCP.getWorldPosition();
 643                                 Vector3d currentPos = currentCP.getWorldPosition();
 644                                 Vector3d v = new Vector3d(endPos);
 645                                 v.sub(currentPos);
 646                                 v.scale(0.5);
 647                                 v.add(currentPos);
 648
 649                                 PipingRules.addSizeChange(reversed, pipeRun, other, reducer, currentCP, endCP);
 650
 651                                 pcp.setWorldPosition(v);
 652                                 reducer.updateParameters();
 653                         }
 654                         PipingRules.positionUpdate(endCP);
 655                         return true;
 656
 657                 } else if (endType == PositionType.SPLIT) {
 658                         InlineComponent branchSplit = createBranchSplit((InlineComponent)endTo, position);
 659                         if (branchSplit == null)
 660                                 return false;
 661                         PipeControlPoint branchSplitCP = branchSplit.getControlPoint();
 662                         PipeControlPoint pcp = new PipeControlPoint(branchSplit,pipeRun);
 663                         branchSplitCP.children.add(pcp);
 664                         pcp.parent = branchSplitCP;
 665                         pcp.setWorldOrientation(branchSplitCP.getWorldOrientation());
 666                         pcp.setWorldPosition(branchSplitCP.getWorldPosition());
 667
 668
 669                         if(!reversed) {
 670                                 pcp.setPrevious(currentCP);
 671                                 currentCP.setNext(pcp);
 672                         } else {
 673                                 pcp.setNext(currentCP);
 674                                 currentCP.setPrevious(pcp);
 675                         }
 676                         PipingRules.positionUpdate(endCP);
 677                         return true;
 678                 }
 679                 return false;
 680         }
 681
 682         public static InlineComponent createBranchSplit(InlineComponent component, Vector3d pos) throws Exception{
 683                 if (!component.isVariableLength())
 684                         return null;
 685                 PipeRun pipeRun = component.getPipeRun();
 686                 Vector3d sStart = new Vector3d();
 687                 Vector3d sEnd = new Vector3d();
 688                 component.getControlPoint().getInlineControlPointEnds(sStart, sEnd);
 689
 690                 if (MathTools.distance(sStart, sEnd) < (pipeRun.getPipeDiameter()*0.5))
 691                         return null;
 692
 693
 694                 Vector3d p = MathTools.closestPointOnEdge(new Vector3d(pos), sStart, sEnd);
 695                 if (p == sStart) {
 696                         Vector3d v = new Vector3d(sEnd);
 697                         v.sub(sStart);
 698                         v.normalize();
 699                         v.scale(component.getPipeRun().getPipeDiameter()*0.5);
 700                         p.add(v);
 701                 } else if (p == sEnd) {
 702                         Vector3d v = new Vector3d(sStart);
 703                         v.sub(sEnd);
 704                         v.normalize();
 705                         v.scale(component.getPipeRun().getPipeDiameter()*0.5);
 706                         p.add(v);
 707                 }
 708
 709                 P3DRootNode root = (P3DRootNode)component.getRootNode();
 710                 InlineComponent branchSplit = ComponentUtils.createBranchSplit(root);
 711                 String branchName = component.getPipeRun().getUniqueName("Branch");
 712                 branchSplit.setName(branchName);
 713                 component.getPipeRun().addChild(branchSplit);
 714                 PipeControlPoint branchSplitCP = branchSplit.getControlPoint();
 715                 branchSplitCP.setWorldPosition(p);
 716                 PipingRules.splitVariableLengthComponent(branchSplit, component, false);
 717                 return branchSplit;
 718         }
 719
 720         public static Collection<String> getPipelineComponentNames(P3DRootNode root) {
 721                 Collection<String> usedNames = root.getChild().stream()
 722                                 .filter(n -> n instanceof PipeRun)
 723                                 .flatMap(n -> ((PipeRun)n).getChild().stream())
 724                                 .filter(n -> n instanceof PipelineComponent)
 725                                 .map(n -> ((PipelineComponent)n).getName())
 726                                 .collect(Collectors.toSet());
 727                 return usedNames;
 728         }
 729 }