Merge branch 'master' into...

Merge branch 'master' into 241-new-flag-to-compute-metric-for-the-quality-of-the-stepcircleoptimizer

.gitignore

@@ -45,6 +45,7 @@ VadereModelCalibration/**/output
 VadereModelTests/**/legacy
 VadereUtils/output/**
 VadereModelTests/*_private
+**/current_commit_hash.txt
 
 # Operating system files
 .DS_Store
@@ -54,3 +55,7 @@ VadereModelTests/*_private
 **/output/
 **/legacy/
 **/*_private/
+
+# Vadere Cache
+**/__cache__
+**/vadere-server-output
\ No newline at end of file

.gitlab-ci.yml

@@ -25,6 +25,7 @@ variables:
     VADERE_DEPLOYMENT_BASE_URL: "http://www.vadere.org/builds"
     VADERE_PACKAGE_NAME_BRANCHES: "vadere.${CI_COMMIT_REF_NAME}.${CI_RUNNER_TAGS}.zip"
     VADERE_PACKAGE_NAME_RELEASES: "vadere.${CI_COMMIT_TAG}.${CI_RUNNER_TAGS}.zip"
+    EIKMESH_PACKAGE_NAME_BRANCHES: "eikmesh.${CI_COMMIT_REF_NAME}.${CI_RUNNER_TAGS}.zip"
 
 # Stage Definitions
 # Watch out: integration tests and the seed tests run after deployment, because
@@ -82,6 +83,8 @@ stages:
         - mvn -Dmaven.test.skip=true package
         - python3 -m zipfile -c ${VADERE_PACKAGE_NAME_BRANCHES} CHANGELOG.md README.md VadereModelTests/ VadereGui/target/vadere-gui.jar VadereSimulator/target/vadere-console.jar
         - scp ${VADERE_PACKAGE_NAME_BRANCHES} di49mur@webdev-mwn.lrz.de:~/webserver/htdocs/builds/master/${VADERE_PACKAGE_NAME_BRANCHES}
+        - python3 -m zipfile -c ${EIKMESH_PACKAGE_NAME_BRANCHES} VadereMeshing/README.md VadereMeshing/target/meshing-0.1-SNAPSHOT.jar
+        - scp ${EIKMESH_PACKAGE_NAME_BRANCHES} di49mur@webdev-mwn.lrz.de:~/webserver/htdocs/builds/master/eikmesh/${EIKMESH_PACKAGE_NAME_BRANCHES}
     only:
         refs:
             - master

CHANGELOG.md

@@ -6,15 +6,46 @@
 
 ### Added
 
-- single step mode in GUI: Allows the user to step through the simulation one 
+### Changed
+
+## v1.2 (2019-07-13)
+
+### Added
+
+- VadereServer:
+  - Introducing TraCI server implementation for Vadere to allow remote control
+    of Vaderes simulation loop.
+  - VadereManager/target/vadere-server.jar will open a TCP socket and waits
+    for connection request.
+- FloorField Caching:
+  - CellGrid based floorfields can be loaded from a persisted cache file.
+  - Added attributes:
+    - `cacheType: [NO_CACHE|TXT_CACHE|BIN_CACHE]`
+    - `cacheDir: ""` relative path
+  - Cache files will be saved in a `__cache__` directory beside (sibling) the
+    scenario file. With `cacheDir` it is possible to create some structure within
+    the cache directory. Important: If `cacheDir` is an absolute path the cache
+    file will not be placed in `__cache__`.
+  - A TXT_CACHE type will save the CellGrid in a human readable form (CSV) and
+    BIN_CACHE will use a simple binary format for better performance and space
+    reasons.
+- TikzGenerator:
+  - add configuration to show all traces of pedestrians, even if they
+    left the simulation. Config: PostVis -> `Show all Trajectories on Snapshot`
+  - add named coordinate for each scenario element. The coordinate represents the
+    centroid point of the polygon and can be used as a point for relative placement
+    of labels.
+  - introduced id for reference: Source `src_XXX`, Target `trg_XXX`, AbsorbingArea `absorb_XXX`
+    Obstacels `obs_XXX`, Stairs `str_XXX`, MeasurementArea `mrmtA_XXX`
+- single step mode in GUI: Allows the user to step through the simulation one
   step at a time to identify bugs.
-- simplify obstacles (with undo support): Merge multiple obstacles based on the 
+- simplify obstacles (with undo support): Merge multiple obstacles based on the
   convex hull their points create. The merge can be undon
-- add features to open street map (osm) importer: 
+- add features to open street map (osm) importer:
   - import 'open' paths as polygons with a specified width. With this it is
     possible to create walls or subway entrance
   - add option to include osm ids into each obstacle created
- 
+
 `PostVis` added functionalities:
 - the PostVis works now on the basis of simulation time instead of time steps. Agents' position will be interpolated.
     - the user can jump to a specific simulation time
@@ -24,6 +55,11 @@
 
 ### Changed
 
+- version migration ensures that new attributes in the scenario file will be added
+  with default values if no specific actions are defined in a Transformation class.
+- TikzGenerator: style information for pedestrians are moved to dedicated style
+  classes to simplify changes in generated tikz files.  
+
 ## v1.0 (2019-06-13)
 
 ### Added
@@ -56,7 +92,7 @@
 - `VadereConsole`: Add option `--logname <filename>` to specify the name for the log file.
   Please note that the log file `log.out` is always written (because this file is configured
   in the `log4j.properties` of each Vadere module (i.e., "gui", "meshing", ...). (c61a3946: Simulator)
-- New outputprocessors 
+- New outputprocessors
   * mainly for the BHM: QueueWidthProcessor (to evaluate queueWidth) and PedestrianBehaviorProcessor (evaluate behavior: step / tangential step / sideways step / wait)
   * solely for the OSM: PedestrianFootStepProcessor (logs every step instead of the positions at each time step )
 
@@ -84,7 +120,7 @@
 - `GUI`:
     - improved coloring
 
-- `OutputFile`: Distinguish between indices (rows) and headers (columns), in code and with a new checkbox that when enables allow to write meta-data into output files. Furthermore, resolve naming conflicts (if they occur) in headers of output files (see #201). 
+- `OutputFile`: Distinguish between indices (rows) and headers (columns), in code and with a new checkbox that when enables allow to write meta-data into output files. Furthermore, resolve naming conflicts (if they occur) in headers of output files (see #201).
 
 ### Changed
 
@@ -95,7 +131,7 @@
 - Header in output file have now the following form "[NAME]-PID[ID]". This avoids name conflicts and makes mapping to the relevant processor easy and fast.
 - Migration to Java 11 (OpenJDK).
 - Removed directory `Documentation/version-control` which contained the Git hooks. The Git hooks are not required anymore. Instead, added `git rev-parse HEAD` to file `VadereSimulator/pom.xml` to create `VadereSimulator/resources/current_commit_hash.txt` during each build via `mvn compile`.
-  **Note:** The file `current_commit_hash.txt` is created during Maven's validation phase, i.e., before the actual build. 
+  **Note:** The file `current_commit_hash.txt` is created during Maven's validation phase, i.e., before the actual build.
 
 ## v0.6 (2018-09-07)
 

README.md

@@ -55,7 +55,7 @@ With the following steps, you can run a simulation with one of the built-in exam
 - Start Vadere 
 - Click *Project* > *Open* 
 - Choose `vadere.project` of one of the test projects, e.g. [TestOSM](https://gitlab.lrz.de/vadere/vadere/tree/master/VadereModelTests/TestOSM) and click *open*
-- Select tahe scenario on the left and press *run selected scenario*
+- Select the scenario on the left and press *run selected scenario*
 
 ## Build from Source
 

VadereAnnotation/src/org/vadere/annotation/traci/client/ClientAnnotationProcessor.java

+package org.vadere.annotation.traci.client;
+
+import com.google.auto.service.AutoService;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.Processor;
+import javax.annotation.processing.RoundEnvironment;
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.annotation.processing.SupportedSourceVersion;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.AnnotationMirror;
+import javax.lang.model.element.AnnotationValue;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ElementKind;
+import javax.lang.model.element.ExecutableElement;
+import javax.lang.model.element.Modifier;
+import javax.lang.model.element.TypeElement;
+import javax.lang.model.type.MirroredTypeException;
+import javax.tools.JavaFileObject;
+
+@SupportedAnnotationTypes("org.vadere.annotation.traci.client.TraCIApi")
+@SupportedSourceVersion(SourceVersion.RELEASE_11)
+@AutoService(Processor.class)
+public class ClientAnnotationProcessor extends AbstractProcessor {
+
+
+	private StringBuilder apiMembers;
+	private StringBuilder apiInit;
+	private StringBuilder apiMapping;
+	private StringBuilder apiAbstract;
+
+	@Override
+	public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+
+		apiMembers = new StringBuilder();
+		apiInit = new StringBuilder();
+		apiMapping = new StringBuilder();
+		apiAbstract = new StringBuilder();
+
+		// see SupportedAnnotationTypes (here only TraCIApi)
+		for (TypeElement annotation : annotations) {
+			Set<? extends Element> annotatedElements =
+					roundEnv.getElementsAnnotatedWith(annotation)
+							.stream()
+							.filter(e -> e.getKind().isClass()
+									&& !e.getKind().equals(ElementKind.ENUM)
+									&& !e.getModifiers().contains(Modifier.ABSTRACT)
+							)
+							.collect(Collectors.toSet());
+
+			if (annotatedElements.isEmpty())
+				continue;
+
+			for (Element annotatedElement : annotatedElements) {
+				try {
+					writeApiClass(annotatedElement);
+				} catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
+
+		}
+		try {
+			TypeElement element = processingEnv.getElementUtils().
+					getTypeElement("org.vadere.manager.client.AbstractTestClient");
+			if (element == null)
+				writeAbstractTestClient();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		return true;
+	}
+
+	protected void writeAbstractTestClient() throws IOException {
+		JavaFileObject jFile = processingEnv.getFiler().createSourceFile("AbstractTestClient");
+		try (PrintWriter writer = new PrintWriter(jFile.openWriter())){
+			writer.append("package org.vadere.manager.client; ").println();
+			writer.println();
+			writer.append("import org.vadere.manager.TraCISocket;").println();
+			writer.append("import org.vadere.manager.client.ConsoleReader;").println();
+			writer.append("import java.io.IOException;").println();
+			writer.println();
+			writer.append("public abstract class AbstractTestClient {").println();
+			writer.append(apiMembers.toString()).println();
+			writer.append("\tpublic AbstractTestClient() { }").println();
+			writer.println();
+			writer.append("\tpublic void init(TraCISocket socket, ConsoleReader consoleReader){").println();
+			writer.append(apiInit.toString());
+			writer.println();
+			writer.append(apiMapping.toString());
+			writer.append("\t}").println();
+			writer.println();
+			writer.append(apiAbstract.toString());
+			writer.println();
+			writer.append("}").println();
+		}
+
+	}
+
+	protected void writeApiClass(Element apiClass) throws IOException {
+		TraCiApiWrapper traCIApi = new TraCiApiWrapper(apiClass);
+		JavaFileObject jFile = processingEnv.getFiler().createSourceFile(traCIApi.name);
+
+		apiMembers.append(String.format("\tprotected %s.%s %s;\n", traCIApi.packageName, traCIApi.name, traCIApi.name.toLowerCase()));
+		apiInit.append(String.format("\t\t%s = new %s.%s(socket);\n", traCIApi.name.toLowerCase(), traCIApi.packageName, traCIApi.name));
+
+		try (PrintWriter writer = new PrintWriter(jFile.openWriter())){
+			writer.append("package ").append(traCIApi.packageName).append(";").println();
+			writer.println();
+			for (String anImport : traCIApi.imports) {
+				writer.append("import ").append(anImport).append(";").println();
+			}
+			writer.append("import ").append(traCIApi.cmdEnum).append(";").println();
+			writer.append("import ").append(traCIApi.varEnum).append(";").println();
+			writer.println();
+
+			// start API class
+			writer.append("public class ").append(traCIApi.name).append(" extends ")
+					.append(traCIApi.extendedClassName).append(" {").println();
+
+			// constructor
+			writer.append("\tpublic ").append(traCIApi.name).append("(TraCISocket socket) {").println();
+			writer.append("\t\tsuper(socket, \"").append(traCIApi.name).append("\");").println();
+			writer.append("\t}").println();
+			writer.println();
+
+
+			for (Element element : apiClass.getEnclosedElements()) {
+				List<? extends AnnotationMirror> anMirrors = element.getAnnotationMirrors();
+				if (anMirrors != null){
+					for (AnnotationMirror anMirror : anMirrors) {
+						String anName = anMirror.getAnnotationType().asElement().getSimpleName().toString();
+						String singeAn = traCIApi.singleAnnotation
+								.substring(traCIApi.singleAnnotation.lastIndexOf(".") + 1).trim();
+						if (anName.equals(singeAn)){
+							ApiHandler apiHandler = new ApiHandler(traCIApi, element, anMirror);
+							apiMapping.append(String.format("\t\tconsoleReader.addCommand(\"%s.%s\", \"\", this::%s_%s);\n", traCIApi.name.toLowerCase(), apiHandler.name, traCIApi.name.toLowerCase(), apiHandler.name));
+							apiAbstract.append(String.format("\t\tabstract public void %s_%s (String args[]) throws IOException;\n",traCIApi.name.toLowerCase(), apiHandler.name));
+							switch (apiHandler.apiType){
+								case "GET":
+									writeGET(writer, apiHandler);
+									break;
+								case "SET":
+									writeSET(writer, apiHandler);
+									break;
+							}
+						}
+					}
+				}
+			}
+			writer.append("}").println(); // end API class
+		}
+	}
+
+	protected void writeGET(PrintWriter writer, ApiHandler apiHandler){
+		if (apiHandler.ignoreElementId){
+			writer.append("\tpublic TraCIGetResponse ").append(apiHandler.name).append("() throws IOException {").println();
+			writer.append("\t\tTraCIPacket p = TraCIGetCommand.build(").append(apiHandler.cmd).append(", ").append(apiHandler.varId).append(", \"-1\");").println();
+		}
+		else {
+			writer.append("\tpublic TraCIGetResponse ").append(apiHandler.name).append("(String elementID) throws IOException {").println();
+			writer.append("\t\tTraCIPacket p = TraCIGetCommand.build(").append(apiHandler.cmd).append(", ").append(apiHandler.varId).append(", elementID);").println();
+		}
+
+		writer.append("\n\t\tsocket.sendExact(p);\n").println();
+		writer.append("\t\treturn (TraCIGetResponse) socket.receiveResponse();").println();
+		writer.append("\t}").println();
+		writer.println();
+	}
+
+	protected void writeSET(PrintWriter writer, ApiHandler apiHandler){
+		writer.append("\tpublic TraCIResponse ").append(apiHandler.name).append("(String elementId, ").append(apiHandler.dataTypeStr).append(" data) throws IOException {").println();
+		writer.append("\t\tTraCIPacket p = TraCISetCommand.build(")
+				.append(apiHandler.cmd).append(", elementId, ").append(apiHandler.varId).append(", ").append(apiHandler.varType).append(", data);").println();
+
+		writer.append("\n\t\tsocket.sendExact(p);\n").println();
+		writer.append("\t\treturn socket.receiveResponse();").println();
+		writer.append("\t}").println();
+		writer.println();
+	}
+
+	class TraCiApiWrapper {
+		String name;
+		String singleAnnotation;
+		String multipleAnnotation;
+		String cmdEnum;
+		String varEnum;
+		String packageName;
+		String[] imports;
+		String extendedClassName;
+
+		TraCiApiWrapper(Element apiClass){
+			TraCIApi traCIApi = apiClass.getAnnotation(TraCIApi.class);
+
+
+			name = traCIApi.name();
+			packageName = traCIApi.packageName();
+			imports = traCIApi.imports();
+			extendedClassName = traCIApi.extendedClassName();
+
+			try {
+				singleAnnotation = traCIApi.singleAnnotation().getCanonicalName();
+			} catch (MirroredTypeException e){
+				singleAnnotation = e.getTypeMirror().toString();
+			}
+
+			try {
+				multipleAnnotation = traCIApi.multipleAnnotation().getCanonicalName();
+			} catch (MirroredTypeException e){
+				multipleAnnotation = e.getTypeMirror().toString();
+			}
+
+			try {
+				cmdEnum = traCIApi.cmdEnum().getCanonicalName();
+			} catch (MirroredTypeException e){
+				cmdEnum = e.getTypeMirror().toString();
+			}
+
+			try {
+				varEnum = traCIApi.varEnum().getCanonicalName();
+			} catch (MirroredTypeException e){
+				varEnum = e.getTypeMirror().toString();
+			}
+		}
+	}
+
+	class ApiHandler {
+
+		String cmd;
+		String varId;
+		String varType;
+		String name;
+		String dataTypeStr;
+		boolean ignoreElementId;
+		String apiType; //SET, GET, SUB
+
+		public ApiHandler(TraCiApiWrapper traCIApi, Element method, AnnotationMirror annotationMirror){
+
+			ignoreElementId = false; //default
+			dataTypeStr = "";
+			String cmdPrefix = traCIApi.cmdEnum;
+			cmdPrefix = cmdPrefix.substring(cmdPrefix.lastIndexOf('.') + 1).trim();
+			String varPrefix = traCIApi.varEnum;
+			varPrefix = varPrefix.substring(varPrefix.lastIndexOf('.') + 1).trim();
+
+			Map<? extends ExecutableElement, ? extends AnnotationValue> valueMap = annotationMirror.getElementValues();
+			for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : valueMap.entrySet()) {
+				String key = entry.getKey().getSimpleName().toString();
+				Object value = entry.getValue().getValue();
+				switch (key){
+					case "cmd":
+						this.cmd = cmdPrefix+ "." + value.toString();
+						this.apiType = value.toString().substring(0, 3);
+						break;
+					case "var":
+						this.varId = varPrefix + "." + value.toString() + ".id";
+						this.varType = varPrefix + "." + value.toString() + ".type";
+						break;
+					case "name":
+						this.name = (String) value;
+						break;
+					case "ignoreElementId":
+						this.ignoreElementId = (boolean) value;
+						break;
+					case "dataTypeStr":
+						this.dataTypeStr = value.toString();
+				}
+			}
+		}
+
+		@Override
+		public String toString() {
+			return "ApiHandler{" +
+					"cmd='" + cmd + '\'' +
+					", varId='" + varId + '\'' +
+					", varType='" + varType + '\'' +
+					", name='" + name + '\'' +
+					", ignoreElementId=" + ignoreElementId +
+					", apiType='" + apiType + '\'' +
+					'}';
+		}
+	}
+}

VadereAnnotation/src/org/vadere/annotation/traci/client/TraCIApi.java

+package org.vadere.annotation.traci.client;
+
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.SOURCE)
+public @interface TraCIApi {
+	String packageName() default "org.vadere.manager.client.traci";
+	String[] imports() default {
+			"org.vadere.manager.client.traci.TraCIClientApi",
+			"org.vadere.manager.TraCISocket",
+			"org.vadere.manager.traci.commands.TraCIGetCommand",
+			"org.vadere.manager.traci.commands.TraCISetCommand",
+			"org.vadere.manager.traci.respons.TraCIGetResponse",
+			"org.vadere.manager.traci.writer.TraCIPacket",
+			"org.vadere.manager.traci.respons.TraCIResponse",
+			"java.io.IOException",
+			"java.util.ArrayList"
+	};
+	String extendedClassName() default "TraCIClientApi";
+	String name();
+	Class singleAnnotation();
+	Class multipleAnnotation();
+	Class cmdEnum();
+	Class varEnum();
+}

VadereGui/resources/messages.properties

@@ -303,9 +303,10 @@ ProjectView.btnCancel=Cancel
 ProjectView.btnExpertCSV=Export as csv
 ProjectView.label.simResults=Simulation Results
 
+TopographyCreator.btnGeneratePoly.tooltip=Generate a Planar Straight-Line Graph (PSLG)
 TopographyCreator.btnMergeObstacles.tooltip=Merge Overlapping Obstacles into One Polygon
 TopographyCreator.btnMinimizeTopography.tooltip=Select Viewport area
-TopographyCreator.btnMaximizeTopography.tooltip=Maximize Viewport area
+TopographyCreator.btnMaximizeTopography.tooltip=Maximize Viewport Area
 TopographyCreator.btnQuickSave.tooltip=Quicksave
 TopographyCreator.btnNewTopography.tooltip=New Scenario
 TopographyCreator.btnScroll.tooltip=Scroll Around
@@ -317,14 +318,14 @@ TopographyCreator.btnCutTopography.tooltip=Cut Scenario
 TopographyCreator.btnInsertPedestrian.tooltip=Pedestrian
 TopographyCreator.btnTopographyBound.tooltip=Topography Bound
 TopographyCreator.btnMergeWithConvexHull.tooltip=Merge With Convex Hull
-TopographyCreator.btnTranslation.tooltip=Translate topography
-TopographyCreator.btnElementTranslation.tooltip=Translate topography elements
+TopographyCreator.btnTranslation.tooltip=Translate Topography
+TopographyCreator.btnElementTranslation.tooltip=Translate Topography Elements
 TopographyCreator.btnInsertObstacle.tooltip=Obstacle
 TopographyCreator.btnInsertTarget.tooltip=Target
 TopographyCreator.btnInsertAbsorbingArea.tooltip=Absorbing Area
 TopographyCreator.btnInsertSource.tooltip=Source
 TopographyCreator.btnInsertStairs.tooltip=Stairs
-TopographyCreator.btnInsertMeasurementArea.tooltip=MeasurmentArea
+TopographyCreator.btnInsertMeasurementArea.tooltip=Measurment Area
 TopographyCreator.btnErase.tooltip=Eraser
 TopographyCreator.btnConvexHull.label=Convex Hull
 TopographyCreator.btnSimplePolygon.label=Simple Polygon

VadereGui/resources/messages_de_DE.properties

@@ -297,6 +297,7 @@ ProjectView.btnCancel=Abbrechen
 ProjectView.btnDrawVoronoiDiagram.tooltip=Voronoi-Diagramm zeichnen und anzeigen
 ProjectView.btnDrawMesh.tooltip=Mesh zeichnen und anzeigen
 
+TopographyCreator.btnGeneratePoly.tooltip=Generiere einen PSLG
 TopographyCreator.btnMergeObstacles.tooltip=\u00dcberlappende Hindernisse zusammenf\u00fchren
 TopographyCreator.btnMinimizeTopography.tooltip=Select Viewport area
 TopographyCreator.btnMaximizeTopography.tooltip=Anzeigebereich maximieren

VadereGui/src/org/vadere/gui/components/control/simulation/ActionGeneratePoly.java → VadereGui/src/org/vadere/gui/components/control/ActionGeneratePoly.java

-package org.vadere.gui.components.control.simulation;
+package org.vadere.gui.components.control;
 
+import org.apache.commons.configuration2.Configuration;
+import org.vadere.gui.components.control.simulation.ActionGeneratePNG;
+import org.vadere.gui.components.model.DefaultModel;
 import org.vadere.gui.components.model.DefaultSimulationConfig;
-import org.vadere.gui.components.model.SimulationModel;
 import org.vadere.gui.components.utils.Messages;
-import org.vadere.gui.components.utils.Resources;
-import org.vadere.gui.components.view.SimulationRenderer;
-import org.vadere.gui.postvisualization.PostVisualisation;
+import org.vadere.meshing.mesh.impl.PSLG;
 import org.vadere.meshing.utils.io.poly.PSLGGenerator;
 import org.vadere.state.scenario.Obstacle;
+import org.vadere.util.config.VadereConfig;
 import org.vadere.util.geometry.shapes.VPolygon;
 import org.vadere.util.geometry.shapes.VRectangle;
 import org.vadere.util.logging.Logger;
@@ -21,30 +22,29 @@ import java.io.OutputStreamWriter;
 import java.io.Writer;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.Date;
 import java.util.List;
-import java.util.prefs.Preferences;
 import java.util.stream.Collectors;
 
 import javax.swing.*;
 
 public class ActionGeneratePoly extends AbstractAction {
 	private static Logger logger = Logger.getLogger(ActionGeneratePNG.class);
-	private static Resources resources = Resources.getInstance("global");
-	private final SimulationModel<? extends DefaultSimulationConfig> model;
+	private static final Configuration CONFIG = VadereConfig.getConfig();
+	private final DefaultModel<? extends DefaultSimulationConfig> model;
 
-	public ActionGeneratePoly(final String name, Icon icon, final SimulationRenderer renderer,
-	                         final SimulationModel<? extends DefaultSimulationConfig> model) {
+	public ActionGeneratePoly(final String name, Icon icon, final DefaultModel<? extends DefaultSimulationConfig> model) {
 		super(name, icon);
 		this.model = model;
 	}
 
 	@Override
 	public void actionPerformed(final ActionEvent e) {
-		JFileChooser fileChooser = new JFileChooser(Preferences.userNodeForPackage(PostVisualisation.class).get("SettingsDialog.snapshotDirectory.path", "."));
+		JFileChooser fileChooser = new JFileChooser(CONFIG.getString("SettingsDialog.snapshotDirectory.path"));
 
 		Date todaysDate = new java.util.Date();
-		SimpleDateFormat formatter = new SimpleDateFormat(resources.getProperty("SettingsDialog.dataFormat"));
+		SimpleDateFormat formatter = new SimpleDateFormat(CONFIG.getString("SettingsDialog.dataFormat"));
 		String formattedDate = formatter.format(todaysDate);
 
 
@@ -67,17 +67,27 @@ public class ActionGeneratePoly extends AbstractAction {
 
 			List<Obstacle> obstacles = new ArrayList<>(model.getTopography().getObstacles());
 			obstacles.removeAll(model.getTopography().getBoundaryObstacles());
+
+			List<VPolygon> obsShapes = obstacles.stream()
+					.map(obs -> obs.getShape())
+					.map(shape -> new VPolygon(shape))
+					.collect(Collectors.toList());
+
+			// this computes the union of intersecting obstacles.
+			obsShapes = PSLG.constructHoles(obsShapes);
+
+			// this will help to construct a valid non-rectangular bound.
+			List<VPolygon> polygons = PSLG.constructBound(new VPolygon(bound), obsShapes);
+
 			String polyString = PSLGGenerator.toPSLG(
-					new VPolygon(bound),
-					obstacles.stream()
-							.map(obs -> obs.getShape())
-							.map(shape -> new VPolygon(shape))
-							.collect(Collectors.toList()));
+					polygons.get(0),
+					polygons.size() > 1 ? polygons.subList(1, polygons.size()) : Collections.emptyList());
 			try {
 				outputFile.createNewFile();
 				Writer out = new OutputStreamWriter(new FileOutputStream(outputFile), "UTF-8");
 				out.write(polyString);
 				out.flush();
+				VadereConfig.getConfig().setProperty("SettingsDialog.snapshotDirectory.path", outputFile.getParentFile().getAbsolutePath());