/** * Output a specific entity to the specified stream. * * @param model The world model to export * @param entityID The entity to export * @param mainScene The X3D scene to write to */ public X3DNode export(WorldModel model, int entityID, X3DScene mainScene, String worldURL) { // get the entity Entity entity = model.getEntity(entityID); if (entity == null) { errorReporter.messageReport("Cannot find model to export: " + entityID); return null; } if (entity.isController()) { return null; } try { X3DNode group; // if the entity has a position then place it if (entity instanceof PositionableEntity) { double[] position = new double[3]; float[] rotation = new float[4]; float[] scale = new float[3]; ((PositionableEntity) entity).getPosition(position); ((PositionableEntity) entity).getRotation(rotation); ((PositionableEntity) entity).getScale(scale); float[] pos = new float[] {(float) position[0], (float) position[1], (float) position[2]}; // create the transform group node group = mainScene.createNode("Transform"); SFVec3f translationField = (SFVec3f) (group.getField("translation")); translationField.setValue(pos); SFRotation rotationField = (SFRotation) (group.getField("rotation")); rotationField.setValue(rotation); SFVec3f scaleField = (SFVec3f) (group.getField("scale")); scaleField.setValue(scale); } else { // create the transform group node group = mainScene.createNode("Group"); } // create the inline node String url = worldURL + entity.getModelURL(); X3DNode inline = mainScene.createNode("Inline"); MFString urlField = (MFString) (inline.getField("url")); urlField.setValue(1, new String[] {url}); // grab the child node to append to MFNode childrenField = (MFNode) (group.getField("children")); // add inline to the group/transform childrenField.append(inline); return group; } catch (Exception ex) { errorReporter.errorReport("Error.", ex); } return null; }