Add design spec for OpenGL 3D view

Replaces the JavaFX SubScene/MeshView rendering with an OpenGL viewport
(openglfx-jogl, GL 3.3 core), single global VBO, GPU color-picking, and
baked fake shading. Windows/Linux targets; JavaFX 3D path removed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/LandUseNode.java

-/*-
- *  Copyright 2022 Beuth Hochschule für Technik Berlin, Hochschule für Technik Stuttgart
- * 
- *  This file is part of CityDoctor2.
- *
- *  CityDoctor2 is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU Lesser General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  CityDoctor2 is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public License
- *  along with CityDoctor2.  If not, see <https://www.gnu.org/licenses/>.
- */
-package de.hft.stuttgart.citydoctor2.gui.tree;
-
-import de.hft.stuttgart.citydoctor2.datastructure.LandObject;
-import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
-import de.hft.stuttgart.citydoctor2.gui.Renderer;
-
-public class LandUseNode extends Renderable {
-	
-	private final LandObject landUse;
-
-	public LandUseNode(LandObject landUse) {
-		this.landUse = landUse;
-	}
-
-	@Override
-	public void refreshTextColor() {
-		if (!landUse.isValidated()) {
-			setStatus(CheckStatus.NOT_CHECKED);
-		} else if (landUse.containsAnyError()) {
-			setStatus(CheckStatus.ERROR);
-		} else {
-			setStatus(CheckStatus.OK);
-		}		
-	}
-
-	@Override
-	public String getText() {
-		return "[LandUse] " + landUse.getGmlId().getGmlString();
-	}
-
-	@Override
-	public void visit(Renderer renderer) {
-		renderer.render(landUse);
-	}
-
-}

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/ReliefNode.java

-/*-
- *  Copyright 2022 Beuth Hochschule für Technik Berlin, Hochschule für Technik Stuttgart
- * 
- *  This file is part of CityDoctor2.
- *
- *  CityDoctor2 is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU Lesser General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  CityDoctor2 is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public License
- *  along with CityDoctor2.  If not, see <https://www.gnu.org/licenses/>.
- */
-package de.hft.stuttgart.citydoctor2.gui.tree;
-
-import de.hft.stuttgart.citydoctor2.datastructure.ReliefObject;
-import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
-import de.hft.stuttgart.citydoctor2.gui.Renderer;
-
-public class ReliefNode extends Renderable {
-	
-	private final ReliefObject relief;
-
-	public ReliefNode(ReliefObject relief) {
-		this.relief = relief;
-	}
-
-
-	@Override
-	public void refreshTextColor() {
-		if (!relief.isValidated()) {
-			setStatus(CheckStatus.NOT_CHECKED);
-		} else if (relief.containsAnyError()) {
-			setStatus(CheckStatus.ERROR);
-		} else {
-			setStatus(CheckStatus.OK);
-		}		
-	}
-
-	@Override
-	public String getText() {
-		return "[ReliefFeature] " + relief.getGmlId().getGmlString();
-	}
-
-	@Override
-	public void visit(Renderer renderer) {
-		renderer.render(relief);
-	}
-
-}

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/Renderable.java

 package de.hft.stuttgart.citydoctor2.gui.tree;
 
 import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
+import de.hft.stuttgart.citydoctor2.gui.MainWindow;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.utils.Localization;
 import javafx.beans.property.ObjectProperty;
 import javafx.beans.property.SimpleObjectProperty;
+import javafx.scene.input.Clipboard;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import static javafx.scene.input.Clipboard.getSystemClipboard;
 
 public abstract class Renderable {
 	
 	private final ObjectProperty<CheckStatus> statusProperty = new SimpleObjectProperty<>();
 
+	private static Logger logger = LogManager.getLogger(Renderable.class);
+
 	/**
 	 * @return the status
 	 */
@@ -31,4 +40,18 @@ public abstract class Renderable {
 	public abstract String getText();
 	public abstract void visit(Renderer renderer);
 
+	public void getClipboardAction(MainWindow mainWindow) {
+		Clipboard clipboard = getSystemClipboard();
+		clipboard.clear();
+		if (logger.isInfoEnabled()) {
+			logger.info(Localization.getText("MainWindow.infoTopLevelCopyID"));
+		}
+	}
+
+	public void getFeatureExportAction(MainWindow mainWindow) {
+		if (logger.isInfoEnabled()) {
+			logger.info(Localization.getText("MainWindow.infoTopLevelExport"));
+		}
+	}
+
 }

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/RoomNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
-
-import de.hft.stuttgart.citydoctor2.datastructure.AbstractRoom;
-import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
-import de.hft.stuttgart.citydoctor2.gui.Renderer;
-
-public class RoomNode extends Renderable{
-
-    private final AbstractRoom room;
-
-    public RoomNode(AbstractRoom room) {
-        this.room = room;
-    }
-
-    @Override
-    public String getText() {
-        return room.getGmlId().getGmlString();
-    }
-
-
-    @Override
-    public void visit(Renderer renderer) {
-        renderer.render(room);
-    }
-
-    @Override
-    public void refreshTextColor() {
-        if (!room.isValidated()) {
-            setStatus(CheckStatus.NOT_CHECKED);
-        } else if (room.containsAnyError()) {
-            setStatus(CheckStatus.ERROR);
-        } else {
-            setStatus(CheckStatus.OK);
-        }
-    }
-}

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/StoreyNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
-
-import de.hft.stuttgart.citydoctor2.datastructure.Storey;
-import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
-import de.hft.stuttgart.citydoctor2.gui.Renderer;
-
-public class StoreyNode extends Renderable{
-
-    private final Storey storey;
-
-    public StoreyNode(Storey storey) {
-        this.storey = storey;
-    }
-
-    @Override
-    public String getText() {
-        return storey.getGmlId().getGmlString();
-    }
-
-
-    @Override
-    public void visit(Renderer renderer) {
-        renderer.render(storey);
-    }
-
-    @Override
-    public void refreshTextColor() {
-        if (!storey.isValidated()) {
-            setStatus(CheckStatus.NOT_CHECKED);
-        } else if (storey.containsAnyError()) {
-            setStatus(CheckStatus.ERROR);
-        } else {
-            setStatus(CheckStatus.OK);
-        }
-    }
-
-}

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/TinNode.java

-/*-
- *  Copyright 2022 Beuth Hochschule für Technik Berlin, Hochschule für Technik Stuttgart
- * 
- *  This file is part of CityDoctor2.
- *
- *  CityDoctor2 is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU Lesser General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  CityDoctor2 is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public License
- *  along with CityDoctor2.  If not, see <https://www.gnu.org/licenses/>.
- */
-package de.hft.stuttgart.citydoctor2.gui.tree;
-
-import de.hft.stuttgart.citydoctor2.datastructure.TinObject;
-import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
-import de.hft.stuttgart.citydoctor2.gui.Renderer;
-
-public class TinNode extends Renderable {
-	
-	private final TinObject tin;
-
-	public TinNode(TinObject tin) {
-		this.tin = tin;
-	}
-
-
-	@Override
-	public void refreshTextColor() {
-		if (!tin.isValidated()) {
-			setStatus(CheckStatus.NOT_CHECKED);
-		} else if (tin.containsAnyError()) {
-			setStatus(CheckStatus.ERROR);
-		} else {
-			setStatus(CheckStatus.OK);
-		}		
-	}
-
-	@Override
-	public String getText() {
-		return "[TINRelief] " + tin.getGmlId().getGmlString();
-	}
-
-	@Override
-	public void visit(Renderer renderer) {
-		renderer.render(tin);
-	}
-
-}

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/TunnelNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
-
-import de.hft.stuttgart.citydoctor2.datastructure.Tunnel;
-import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
-import de.hft.stuttgart.citydoctor2.gui.Renderer;
-
-public class TunnelNode extends Renderable{
-
-    private final Tunnel tunnel;
-
-    public TunnelNode(Tunnel tunnel) {
-        this.tunnel = tunnel;
-    }
-
-    @Override
-    public String getText() {
-        return tunnel.getGmlId().getGmlString();
-    }
-
-    public Tunnel getTunnel() {
-        return tunnel;
-    }
-
-    @Override
-    public void visit(Renderer renderer) {
-        renderer.render(tunnel);
-    }
-
-    @Override
-    public void refreshTextColor() {
-        if (!tunnel.isValidated()) {
-            setStatus(CheckStatus.NOT_CHECKED);
-        } else if (tunnel.containsAnyError()) {
-            setStatus(CheckStatus.ERROR);
-        } else {
-            setStatus(CheckStatus.OK);
-        }
-    }
-}

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/TunnelPartNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
-
-import de.hft.stuttgart.citydoctor2.datastructure.TunnelPart;
-import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
-import de.hft.stuttgart.citydoctor2.gui.Renderer;
-
-public class TunnelPartNode extends Renderable{
-
-    private final TunnelPart tp;
-
-    public TunnelPartNode(TunnelPart tp) {
-        this.tp = tp;
-    }
-
-    @Override
-    public String getText() {
-        return tp.getGmlId().getGmlString();
-    }
-
-    @Override
-    public void visit(Renderer renderer) {
-        renderer.render(tp);
-    }
-
-    @Override
-    public void refreshTextColor() {
-        if (!tp.isValidated()) {
-            setStatus(CheckStatus.NOT_CHECKED);
-        } else if (tp.containsAnyError()) {
-            setStatus(CheckStatus.ERROR);
-        } else {
-            setStatus(CheckStatus.OK);
-        }
-    }
-}

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/VegetationNode.java

-/*-
- *  Copyright 2022 Beuth Hochschule für Technik Berlin, Hochschule für Technik Stuttgart
- * 
- *  This file is part of CityDoctor2.
- *
- *  CityDoctor2 is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU Lesser General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  CityDoctor2 is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public License
- *  along with CityDoctor2.  If not, see <https://www.gnu.org/licenses/>.
- */
-package de.hft.stuttgart.citydoctor2.gui.tree;
-
-import de.hft.stuttgart.citydoctor2.datastructure.Vegetation;
-import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
-import de.hft.stuttgart.citydoctor2.gui.Renderer;
-
-public class VegetationNode extends Renderable {
-
-	private final Vegetation veg;
-	private final String text;
-
-	public VegetationNode(Vegetation veg) {
-		this.veg = veg;
-        text = "[" + veg.getVegetationType() + "] " + veg.getGmlId().getGmlString();
-	}
-
-	@Override
-	public void refreshTextColor() {
-		if (!veg.isValidated()) {
-			setStatus(CheckStatus.NOT_CHECKED);
-		} else if (veg.containsAnyError()) {
-			setStatus(CheckStatus.ERROR);
-		} else {
-			setStatus(CheckStatus.OK);
-		}
-	}
-
-	@Override
-	public String getText() {
-		return text;
-	}
-
-	@Override
-	public void visit(Renderer renderer) {
-		renderer.render(veg);
-	}
-
-}

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/AllOtherObjectsNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/CityObjectGroupNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
-import de.hft.stuttgart.citydoctor2.datastructure.GenericCityObject;
+import de.hft.stuttgart.citydoctor2.check.Checkable;
+import de.hft.stuttgart.citydoctor2.datastructure.CityObject;
 import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 import javafx.scene.paint.Color;
 
 import java.util.List;
 
-public class AllOtherObjectsNode extends Renderable{
+public class CityObjectGroupNode extends Renderable {
 
-    private final List<GenericCityObject> genericObjects;
+    private final List<? extends CityObject> cityObjects;
+    private final Color renderColor;
+    private final String nodeText;
 
-    public AllOtherObjectsNode(List<GenericCityObject> genericObjects) {
-        this.genericObjects = genericObjects;
+    public CityObjectGroupNode(List<? extends CityObject> cityObjects, String nodeText, Color renderColor) {
+        this.cityObjects = cityObjects;
+        this.nodeText = nodeText;
+        this.renderColor = renderColor;
     }
 
     @Override
     public void refreshTextColor() {
-        boolean wasChecked = false;
-        for (GenericCityObject gco : genericObjects) {
-            if (gco.isValidated()) {
-                wasChecked = true;
-                if (gco.containsAnyError()) {
-                    setStatus(CheckStatus.ERROR);
-                    return;
-                }
-            }
-        }
-        if (wasChecked) {
-            setStatus(CheckStatus.OK);
-        } else {
+        if (cityObjects.stream().anyMatch(cityObject -> !cityObject.isValidated())) {
             setStatus(CheckStatus.NOT_CHECKED);
+        } else if (cityObjects.stream().anyMatch(Checkable::containsAnyError)) {
+            setStatus(CheckStatus.ERROR);
+        } else {
+            setStatus(CheckStatus.OK);
         }
     }
 
+
     @Override
     public String getText() {
-        return "GenericCityObjects";
+        return nodeText;
     }
 
     @Override
     public void visit(Renderer renderer) {
-        renderer.clearCurrentRender();
-        renderer.renderCityObjects(genericObjects, Color.GRAY);
+        renderer.renderCityObjects(cityObjects, renderColor);
     }
 
 }

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/CityObjectNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/CityObjectNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
 import de.hft.stuttgart.citydoctor2.datastructure.CityObject;
 import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 public class CityObjectNode extends Renderable {
 
+	private static final Logger logger = LogManager.getLogger(CityObjectNode.class);
+
 	private final CityObject co;
+	private String text;
 
 	public CityObjectNode(CityObject co) {
 		this.co = co;
+		this.text = co.getDisplayText();
 	}
 
 	@Override
@@ -25,7 +32,7 @@ public class CityObjectNode extends Renderable {
 
 	@Override
 	public String getText() {
-		return co.getGmlId().getGmlString();
+		return text;
 	}
 
 	@Override
@@ -33,4 +40,8 @@ public class CityObjectNode extends Renderable {
 		renderer.render(co);
 	}
 
+	public CityObject getFeature() {
+		return co;
+	}
+
 }

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/EdgeNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/EdgeNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
 import java.text.DecimalFormat;
 import java.text.DecimalFormatSymbols;
@@ -6,6 +6,7 @@ import java.text.DecimalFormatSymbols;
 import de.hft.stuttgart.citydoctor2.datastructure.Edge;
 import de.hft.stuttgart.citydoctor2.datastructure.Vertex;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 
 public class EdgeNode extends Renderable {
 	

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/ErrorNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/ErrorNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
 import de.hft.stuttgart.citydoctor2.check.CheckError;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 
 public class ErrorNode extends Renderable {
 	

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/GenericAttributeNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/GenericAttributeNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
 import de.hft.stuttgart.citydoctor2.datastructure.GenericAttribute;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 
 public class GenericAttributeNode extends Renderable {
 

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/GeometryNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/GeometryNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
 import de.hft.stuttgart.citydoctor2.datastructure.Geometry;
 import de.hft.stuttgart.citydoctor2.datastructure.ImplicitGeometryHolder;
 import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 
 public class GeometryNode extends Renderable {
 

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/LinearRingNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/LinearRingNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
 import de.hft.stuttgart.citydoctor2.datastructure.LinearRing;
 import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 
 public class LinearRingNode extends Renderable {
 

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/OpeningNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/OpeningNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
 import de.hft.stuttgart.citydoctor2.datastructure.Opening;
 import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 
 public class OpeningNode extends Renderable {
 

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/PolygonNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/PolygonNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
 import de.hft.stuttgart.citydoctor2.datastructure.Polygon;
 import de.hft.stuttgart.citydoctor2.gui.CheckStatus;
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 
 public class PolygonNode extends Renderable {
 

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/TextNode.java → CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/TextNode.java

-package de.hft.stuttgart.citydoctor2.gui.tree;
+package de.hft.stuttgart.citydoctor2.gui.tree.node;
 
 import de.hft.stuttgart.citydoctor2.gui.Renderer;
+import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 
 public class TextNode extends Renderable {
 	

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/tree/node/TopLevelCityObjectNode.java

+package de.hft.stuttgart.citydoctor2.gui.tree.node;
+
+import de.hft.stuttgart.citydoctor2.datastructure.CityObject;
+import de.hft.stuttgart.citydoctor2.gui.MainWindow;
+import de.hft.stuttgart.citydoctor2.utils.Localization;
+import javafx.scene.input.Clipboard;
+import javafx.scene.input.ClipboardContent;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import static javafx.scene.input.Clipboard.getSystemClipboard;
+
+
+public class TopLevelCityObjectNode extends CityObjectNode {
+
+    private static final Logger logger = LogManager.getLogger(TopLevelCityObjectNode.class);
+
+    public TopLevelCityObjectNode(CityObject co) {
+        super(co);
+    }
+
+    @Override
+    public void getClipboardAction(MainWindow mainWindow) {
+        Clipboard clipboard = getSystemClipboard();
+        ClipboardContent content = new ClipboardContent();
+        content.putString(this.getFeature().getGmlId().toString());
+        if (!clipboard.setContent(content)) {
+            if (logger.isWarnEnabled()) {
+                logger.warn(Localization.getText("MainWindow.warnCopyIdFailed"));
+            }
+
+        }
+    }
+
+    @Override
+    public void getFeatureExportAction(MainWindow mainWindow) {
+        try {
+            mainWindow.getController().export(this.getFeature());
+            if (logger.isWarnEnabled()) {
+                logger.info(Localization.getText("CityDoctorController.exportSuccess"));
+            }
+        } catch (Exception e) {
+            logger.error("Export failed: Unexpected error occurred");
+            logger.error(e);
+        }
+    }
+}