diff --git a/IndoorMap.pro b/IndoorMap.pro
index 0abd632..b4037bb 100644
--- a/IndoorMap.pro
+++ b/IndoorMap.pro
@@ -31,7 +31,6 @@ SOURCES += \
 	params/ElementParamWidget.cpp \
 	params/LayerParamWidget.cpp \
 	params/ActionWidget.cpp \
-	params/ToolBox.cpp \
 	mapview/model/MapModel.cpp \
 	tree/MapTreeModel.cpp \
 	mapview/3D/MapView3D.cpp \
@@ -43,12 +42,13 @@ SOURCES += \
 	params/MetaEditModel.cpp \
 	mapview/2D/MapView2D.cpp \
 	misc/LINTView.cpp \
-	mapview/3DNavMesh/QNavMeshSettings.cpp \
 	mapview/3D/misc/Cube.cpp \
 	mapview/3D/misc/Shader.cpp \
 	mapview/3D/misc/Window.cpp \
     mapview/3D/misc/Outline.cpp \
-    mapview/3D/misc/Handrail.cpp
+    mapview/3D/misc/Handrail.cpp \
+    mapview/3D/navMesh/QNavMeshSettings.cpp \
+    params/ToolBoxWidget.cpp
 
 
 HEADERS  += MainWindow.h \
@@ -111,12 +111,8 @@ HEADERS  += MainWindow.h \
 	mapview/3D/MV3DElementFloorObstaclePillar.h \
 	mapview/3D/MV3DElementAccessPoint.h \
 	mapview/3D/misc/Cube.h \
-	mapview/3D/MV3DElementFloorOutlinePolygon.h \
 	mapview/3D/MV3DElementFloorOutline.h \
 	mapview/3D/misc/Polygon.h \
-	mapview/3DGrid/GridModel.h \
-	mapview/3DGrid/GridRenderer.h \
-	mapview/3DGrid/MyNode.h \
 	mapview/3D/MV3DElementStair.h \
 	mapview/model/MMFloorStair.h \
 	mapview/model/MMFloorStairs.h \
@@ -165,16 +161,20 @@ HEADERS  += MainWindow.h \
 	mapview/2D/tools/ToolNewGroundTruth.h \
 	mapview/2D/tools/ToolNewPOI.h \
 	mapview/3D/MV3DElementElevator.h \
-	mapview/3DNavMesh/NavMeshRenderer.h \
-	mapview/3DNavMesh/NavMeshModel.h \
-	mapview/3DNavMesh/QNavMeshSettings.h \
 	fixC11.h \
 	mapview/3D/misc/Shader.h \
 	mapview/3D/misc/Camera.h \
 	mapview/3D/misc/Renderable3D.h \
 	mapview/3D/misc/Window.h \
     mapview/3D/misc/Outline.h \
-    mapview/3D/misc/Handrail.h
+    mapview/3D/misc/Handrail.h \
+    mapview/3D/grid/GridModel.h \
+    mapview/3D/grid/GridRenderer.h \
+    mapview/3D/grid/MyNode.h \
+    mapview/3D/navMesh/NavMeshModel.h \
+    mapview/3D/navMesh/NavMeshRenderer.h \
+    mapview/3D/navMesh/QNavMeshSettings.h \
+    mapview/3D/misc/TriangleData.h
 
 
 FORMS    += MainWindow.ui
diff --git a/MainController.cpp b/MainController.cpp
index e8383e0..008661e 100644
--- a/MainController.cpp
+++ b/MainController.cpp
@@ -26,7 +26,7 @@
 #include <QFileDialog>
 #include <QTreeView>
 
-#include "mapview/3DGrid/GridRenderer.h"
+#include "mapview/3D/grid/GridRenderer.h"
 
 
 
@@ -108,7 +108,7 @@ MainController::MainController() {
 	//mapModel->load("/apps/map24b.xml");
 	//mapModel->load("/apps/SHL41.xml");
 
-	mapModel->load("/mnt/vm/paper/diss/data/maps/SHL41_nm.xml");
+    //mapModel->load("/mnt/vm/paper/diss/data/maps/SHL41_nm.xml");
 	//mapModel->load("/apps/paper/diss/data/maps/SHL41_nm.xml");
 
 	//mapModel->load("/apps/paper/diss/data/maps/map_elevator2.xml");
diff --git a/MainWindow.cpp b/MainWindow.cpp
index 8598fab..39f7651 100644
--- a/MainWindow.cpp
+++ b/MainWindow.cpp
@@ -62,6 +62,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
 
 	// toolbox
 	QDockWidget* toolBoxWidgetDock = new QDockWidget("", this); toolBoxWidgetDock->setWidget(toolBoxWidget);
+	toolBoxWidgetDock->setFixedWidth(64-11);
 	addDockWidget(Qt::LeftDockWidgetArea, toolBoxWidgetDock);
 
 	// layers
diff --git a/main.cpp b/main.cpp
index e57c1a0..7527daa 100644
--- a/main.cpp
+++ b/main.cpp
@@ -15,19 +15,22 @@ int main(int argc, char *argv[]) {
 
 	QString str = R"(
 
-	QDockWidget {
-			  border: 1px solid #000;
-	  }
+	 QDockWidget {
+				font-weight: bold;
+			}
 
 	  QDockWidget::title {
-		  text-align: left; /* align the text to the left */
+		 /* text-align: left;
 		  background: #ccc;
-		  padding: 1px;
+		  padding: 1px; */
+			font-weight: bold;
 	  }
 
-		 QDockWidget::title:hover {
+
+
+		/* QDockWidget::title:hover {
 				  background: #bbb;
-			  }
+			  }*/
 
 	)";
 
diff --git a/mapview/2D/MapView2D.cpp b/mapview/2D/MapView2D.cpp
index 7c47337..3b8c26b 100644
--- a/mapview/2D/MapView2D.cpp
+++ b/mapview/2D/MapView2D.cpp
@@ -30,6 +30,11 @@ MapView2D::MapView2D(QWidget* parent) : QOpenGLWidget(parent) {
 	// defaults
 	s.setScale(5);
 
+	// android
+	setAttribute(Qt::WA_AcceptTouchEvents);
+    grabGesture(Qt::PanGesture);
+    grabGesture(Qt::PinchGesture);
+
 }
 
 void MapView2D::paintGL() {
@@ -92,3 +97,57 @@ void MapView2D::mouseReleaseEvent(QMouseEvent* e) {
 	tools.mouseReleaseEvent(this, e);
 	update();
 }
+
+
+// android
+bool MapView2D::event(QEvent* event) {
+
+	if (event->type() == QEvent::Gesture) {
+		return gestureEvent(static_cast<QGestureEvent*>(event));
+	} else {
+		return QWidget::event(event);
+	}
+
+}
+
+bool MapView2D::gestureEvent(QGestureEvent* event) {
+	//qCDebug(lcExample) << "gestureEvent():" << event;
+	if (QGesture *swipe = event->gesture(Qt::SwipeGesture)) {
+        //swipeTriggered(static_cast<QSwipeGesture *>(swipe));
+	} else if (QGesture *pan = event->gesture(Qt::PanGesture))
+        panTriggered(static_cast<QPanGesture *>(pan));
+	if (QGesture *pinch = event->gesture(Qt::PinchGesture)) {
+		pinchTriggered(static_cast<QPinchGesture *>(pinch));
+	}
+	return true;
+}
+
+void MapView2D::pinchTriggered(QPinchGesture* gesture) {
+
+	tools.pinchTriggered(this, gesture);
+	update();
+
+//	QPinchGesture::ChangeFlags changeFlags = gesture->changeFlags();
+//	if (changeFlags & QPinchGesture::RotationAngleChanged) {
+////		qreal rotationDelta = gesture->rotationAngle() - gesture->lastRotationAngle();
+////		rotationAngle += rotationDelta;
+////		qCDebug(lcExample) << "pinchTriggered(): rotate by" <<
+////			rotationDelta << "->" << rotationAngle;
+//	}
+//	if (changeFlags & QPinchGesture::ScaleFactorChanged) {
+////		currentStepScaleFactor = gesture->totalScaleFactor();
+////		qCDebug(lcExample) << "pinchTriggered(): zoom by" <<
+////			gesture->scaleFactor() << "->" << currentStepScaleFactor;
+//		std::cout << gesture->totalScaleFactor() << std::endl;
+//	}
+//	if (gesture->state() == Qt::GestureFinished) {
+////		scaleFactor *= currentStepScaleFactor;
+////		currentStepScaleFactor = 1;
+//	}
+//	update();
+}
+
+void MapView2D::panTriggered(QPanGesture* gesture) {
+    tools.panTriggered(this, gesture);
+    update();
+}
diff --git a/mapview/2D/MapView2D.h b/mapview/2D/MapView2D.h
index bd9cbd0..3565c2c 100644
--- a/mapview/2D/MapView2D.h
+++ b/mapview/2D/MapView2D.h
@@ -10,6 +10,9 @@
 class MapModel;
 class MV2DElement;
 
+class QGestureEvent;
+class QPinchGesture;
+class QSwipeGesture;
 #include "tools/Tools.h"
 
 
@@ -80,6 +83,12 @@ protected:
 
 	void keyPressEvent(QKeyEvent* e);
 
+	// android
+	bool event(QEvent *e) override;
+	bool gestureEvent(QGestureEvent* event);
+    void pinchTriggered(QPinchGesture* gesture);
+    void panTriggered(QPanGesture* gesture);
+
 };
 
 #endif // MAP2D_H
diff --git a/mapview/2D/tools/Tool.h b/mapview/2D/tools/Tool.h
index f8fb2ad..20fa33c 100644
--- a/mapview/2D/tools/Tool.h
+++ b/mapview/2D/tools/Tool.h
@@ -9,6 +9,8 @@
 
 #include "../Painter.h"
 
+class QPinchGesture;
+class QPanGesture;
 class MapView2D;
 
 /**
@@ -46,6 +48,9 @@ public:
 
 	virtual bool keyPressEvent(MapView2D* m, QKeyEvent* e) { (void) m; (void) e; return false; }
 
+	virtual bool pinchTriggered(MapView2D* m, QPinchGesture* g) { (void) m; (void) g; return false; }
+    virtual bool panTriggered(MapView2D* m, QPanGesture* g) { (void) m; (void) g; return false; }
+
 	virtual void paintBefore(MapView2D* m, Painter& p) { (void) m; (void) p; }
 	virtual void paintAfter(MapView2D* m, Painter& p) { (void) m; (void) p; }
 
diff --git a/mapview/2D/tools/ToolMapZoom.h b/mapview/2D/tools/ToolMapZoom.h
index f5fb4c5..23b0c27 100644
--- a/mapview/2D/tools/ToolMapZoom.h
+++ b/mapview/2D/tools/ToolMapZoom.h
@@ -9,6 +9,8 @@
  */
 class ToolMapZoom : public Tool {
 
+	float startScale = NAN;
+
 public:
 
 	const std::string getName() const override {
@@ -32,6 +34,34 @@ public:
 
 	}
 
+	virtual bool pinchTriggered(MapView2D *m, QPinchGesture* g) override {
+
+		Scaler& s = m->getScaler();
+		// https://doc.qt.io/qt-5/qtwidgets-gestures-imagegestures-example.html
+
+		QPinchGesture::ChangeFlags changeFlags = g->changeFlags();
+		if (changeFlags & QPinchGesture::RotationAngleChanged) {
+//				qreal rotationDelta = gesture->rotationAngle() - gesture->lastRotationAngle();
+//				rotationAngle += rotationDelta;
+//				qCDebug(lcExample) << "pinchTriggered(): rotate by" <<
+//					rotationDelta << "->" << rotationAngle;
+		}
+		if (changeFlags & QPinchGesture::ScaleFactorChanged) {
+			if (startScale != startScale) {startScale = s.getScale();}
+			s.setScale(startScale * g->totalScaleFactor());
+		}
+		if (g->state() == Qt::GestureFinished) {
+			startScale = NAN;
+		}
+
+		if (s.getScale() > 1000) {s.setScale(1000);}
+		if (s.getScale() < 5) {s.setScale(5);}
+
+		return true;
+
+
+	}
+
 };
 
 #endif // TOOLMAPZOOM_H
diff --git a/mapview/2D/tools/ToolMoveMap.h b/mapview/2D/tools/ToolMoveMap.h
index a01353f..dc8c3b6 100644
--- a/mapview/2D/tools/ToolMoveMap.h
+++ b/mapview/2D/tools/ToolMoveMap.h
@@ -4,6 +4,8 @@
 #include "Tool.h"
 #include "../MapView2D.h"
 
+#include <QPanGesture>
+
 /**
  * this tool allows moving the 2D map
  * using the mouse
@@ -48,6 +50,11 @@ public:
 		return false;
 	}
 
+    virtual bool panTriggered(MapView2D *m, QPanGesture *g) override {
+        m->getScaler().addOffset(g->delta().x(), g->delta().y());
+        return true;
+    }
+
 //	virtual void keyPressEvent(MapView2D* m, QKeyEvent* e) override {
 //		(void) m;
 //		(void) e;
diff --git a/mapview/2D/tools/ToolRuler.h b/mapview/2D/tools/ToolRuler.h
index ce1ee7d..210c784 100644
--- a/mapview/2D/tools/ToolRuler.h
+++ b/mapview/2D/tools/ToolRuler.h
@@ -67,25 +67,23 @@ public:
 		// the visible map-rect
 		const Rect r = p.getScaler().getMapVisible(w, h, step);
 
-		QRect rx(rs,0,w-1-rs,rs);
+		QRect rx(rs,0,w-0-rs,rs);
 		QRect ry(0,rs,rs,h-1-rs);
 
 		// background
 		{
 
-			// samller font
-			QFont f = p.p->font(); f.setPointSize(8);
-			p.p->setFont(f);
-
 			// outline
 			p.setPen(Qt::darkGray);
+			p.setBrush(QColor(240,240,240));
+
 
 			// x-axis
-			QLinearGradient gx(0,0,0,rs); gx.setColorAt(0, c1); gx.setColorAt(1, c2); p.setBrush(gx);
+			//QLinearGradient gx(0,0,0,rs); gx.setColorAt(0, c1); gx.setColorAt(1, c2); p.setBrush(gx);
 			p.p->drawRect(rx);
 
 			// y-axis
-			QLinearGradient gy(0,0,rs,0); gy.setColorAt(0, c2); gy.setColorAt(1, c1); p.setBrush(gy);
+			//QLinearGradient gy(0,0,rs,0); gy.setColorAt(0, c2); gy.setColorAt(1, c1); p.setBrush(gy);
 			p.p->drawRect(ry);
 
 		}
@@ -101,6 +99,10 @@ public:
 		p.setPenBrush(Qt::black, Qt::NoBrush);
 		char buf[128];
 
+		// samller font
+		QFont f = p.p->font(); f.setPointSize(8);
+		p.p->setFont(f);
+
 		// coordinates
 		QRect ru(0,0,rs-1,rs-1);
 		p.p->fillRect(ru, Qt::white);
diff --git a/mapview/2D/tools/Tools.h b/mapview/2D/tools/Tools.h
index 4d3a1df..481535f 100644
--- a/mapview/2D/tools/Tools.h
+++ b/mapview/2D/tools/Tools.h
@@ -5,6 +5,8 @@
 #include "../../../fixC11.h"
 #include "Tool.h"
 
+class QPinchGesture;
+
 /**
  * combine several tools under the interface for one tool
  */
@@ -118,6 +120,17 @@ public:
 		return false;
 	}
 
+	virtual bool pinchTriggered(MapView2D* m, QPinchGesture* g) {//override {
+		if (mainTool) {mainTool->pinchTriggered(m, g);}
+		for (Tool* t : backgroundTools) { if(t->pinchTriggered(m, g)) {return true;} }
+		return false;
+	}
+
+    virtual bool panTriggered(MapView2D* m, QPanGesture* g) {//override {
+        if (mainTool) {mainTool->panTriggered(m, g);}
+        for (Tool* t : backgroundTools) { if(t->panTriggered(m, g)) {return true;} }
+        return false;
+    }
 
 	virtual void paintBefore(MapView2D* m, Painter& p) {//override {
 		for (Tool* t : backgroundTools) {t->paintBefore(m, p);}
diff --git a/mapview/3D/MV3DElementFloorOutline.h b/mapview/3D/MV3DElementFloorOutline.h
index 27e8e91..c397476 100644
--- a/mapview/3D/MV3DElementFloorOutline.h
+++ b/mapview/3D/MV3DElementFloorOutline.h
@@ -82,11 +82,21 @@ protected:
 		if (tmp.pol) {delete tmp.pol;}
 		tmp.pol = new Polygon();
 
+		// all to-be-added polygons (filter!)
 		for (Floorplan::FloorOutlinePolygon* poly : polys) {
 			if (!include(poly)) {continue;}
 			switch (poly->method) {
 			case Floorplan::OutlineMethod::ADD:		tmp.pol->add(poly->poly);		break;
+			case Floorplan::OutlineMethod::REMOVE:	break;
+			default:								throw 1;
+			}
+		}
+
+		// all to-be-removed polygons (NO filter!)
+		for (Floorplan::FloorOutlinePolygon* poly : polys) {
+			switch (poly->method) {
 			case Floorplan::OutlineMethod::REMOVE:	tmp.pol->remove(poly->poly);	break;
+			case Floorplan::OutlineMethod::ADD:		break;
 			default:								throw 1;
 			}
 		}
diff --git a/mapview/3D/MV3DElementFloorOutlinePolygon.h b/mapview/3D/MV3DElementFloorOutlinePolygon.h
deleted file mode 100644
index 34ef9ea..0000000
--- a/mapview/3D/MV3DElementFloorOutlinePolygon.h
+++ /dev/null
@@ -1,60 +0,0 @@
-#ifndef MV3DELEMENTFLOOROUTLINEPOLYGON_H
-#define MV3DELEMENTFLOOROUTLINEPOLYGON_H
-
-//#include <Indoor/floorplan/v2/Floorplan.h>
-
-//#include "misc/Cube.h"
-//#include "MV3DElement.h"
-
-//class MV3DElementFloorOutlinePolygon : public MV3DElement {
-
-//	Floorplan::Floor* f;
-//	Floorplan::FloorOutlinePolygon* poly;
-
-//public:
-
-//	/** ctor */
-//	MV3DElementFloorOutlinePolygon(Floorplan::Floor* f, Floorplan::FloorOutlinePolygon* poly) : f(f), poly(poly) {
-//		;
-//	}
-
-//protected:
-
-
-//	/** repaint me */
-//	void paintGL() override {
-
-//		throw "deprecated!!!";
-
-//		glDisable(GL_CULL_FACE);
-
-////		switch (poly->method) {
-////		case Floorplan::OutlineMethod::ADD:
-////			glColor3f(1,1,1);
-////			break;
-////		case Floorplan::OutlineMethod::REMOVE:
-////			glColor3f(0.3, 0.3, 0.3);
-////			break;
-////		}
-
-//		if (poly->outdoor) {
-//			glColor3f(0, 0, 0.5);
-//		} else {
-//			glColor3f(0.3, 0.3, 0.3);
-//		}
-
-//		glBegin(GL_POLYGON);
-//		glNormal3f(0,1,0);
-//		for (Point2 p2 : poly->poly.points) {
-//			Point3 p3(p2.x, p2.y, f->atHeight);
-//			glVertex3f(p3.x, p3.z, p3.y);
-//		}
-//		glEnd();
-
-//		glEnable(GL_CULL_FACE);
-
-//	}
-
-//};
-
-#endif // MV3DELEMENTFLOOROUTLINEPOLYGON_H
diff --git a/mapview/3D/MV3DElementStair.h b/mapview/3D/MV3DElementStair.h
index 4e9a411..1b90802 100644
--- a/mapview/3D/MV3DElementStair.h
+++ b/mapview/3D/MV3DElementStair.h
@@ -6,6 +6,7 @@
 #include "misc/Cube.h"
 #include "MV3DElement.h"
 #include "misc/Shader.h"
+#include "misc/TriangleData.h"
 
 class MV3DElementStair : public MV3DElement {
 
@@ -25,11 +26,7 @@ protected:
 	/** repaint me */
 	void render(const RenderSettings& rs) override {
 
-		//glDisable(GL_CULL_FACE);
-
-
-		std::vector<float> vertices;
-		std::vector<float> normals;
+		TriangleData data;
 
 		const std::vector<Floorplan::StairPart> parts = stair->getParts();
 		const std::vector<Floorplan::Quad3> quads = Floorplan::getQuads(parts, floor);
@@ -46,66 +43,26 @@ protected:
 			Point3 n = Math::normal(p1,p2);
 			if (n.z < 0) {n = -n;}
 
-			vertices.insert(vertices.end(), {quad.p1.x, quad.p1.y, quad.p1.z});
-			vertices.insert(vertices.end(), {quad.p2.x, quad.p2.y, quad.p2.z});
-			vertices.insert(vertices.end(), {quad.p3.x, quad.p3.y, quad.p3.z});
+			// upper side
+			data.addTriangle(quad.p1, quad.p2, quad.p3, n);
+			data.addTriangle(quad.p3, quad.p4, quad.p1, n);
 
-			vertices.insert(vertices.end(), {quad.p3.x, quad.p3.y, quad.p3.z});
-			vertices.insert(vertices.end(), {quad.p4.x, quad.p4.y, quad.p4.z});
-			vertices.insert(vertices.end(), {quad.p1.x, quad.p1.y, quad.p1.z});
-
-			normals.insert(normals.end(), {n.x, n.y, n.z});
-			normals.insert(normals.end(), {n.x, n.y, n.z});
-			normals.insert(normals.end(), {n.x, n.y, n.z});
-
-			normals.insert(normals.end(), {n.x, n.y, n.z});
-			normals.insert(normals.end(), {n.x, n.y, n.z});
-			normals.insert(normals.end(), {n.x, n.y, n.z});
+			// lower side
+			data.addTriangle(quad.p2, quad.p1, quad.p3, -n);
+			data.addTriangle(quad.p4, quad.p3, quad.p1, -n);
 
 		}
 
 		rs.shader->bind();
 		rs.shader->setModelMatrix(QMatrix4x4());
 		rs.shader->setColor(1.0, 0.55, 0.55);
-		rs.shader->setVertices(vertices.data());
-		rs.shader->setNormals(normals.data());
-		glDrawArrays(GL_TRIANGLES, 0, vertices.size()/3);
+		rs.shader->setVertices(data.getVertices().data());
+		rs.shader->setNormals(data.getNormals().data());
+		glDrawArrays(GL_TRIANGLES, 0, data.getVertices().size()/3);
 		rs.shader->unsetVertices();
 		rs.shader->unsetNormals();
 		rs.shader->release();
 
-		/*
-		TODO_GL
-		//glColor3f(1.0, 0.55, 0.55);
-		glColor3f(0.3, 0.3, 0.3);
-		glBegin(GL_QUADS);
-
-			const std::vector<Floorplan::StairPart> parts = stair->getParts();
-			const std::vector<Floorplan::Quad3> quads = Floorplan::getQuads(parts, floor);
-
-			for (int i = 0; i < (int) parts.size(); ++i) {
-
-				//const Floorplan::StairPart& part = parts[i];
-				const Floorplan::Quad3& quad = quads[i];
-
-				//const Floorplan::Quad3 quad = part.getQuad(floor);
-				const Point3 p1 = quad.p2-quad.p1;
-				const Point3 p2 = quad.p4-quad.p1;
-
-				Point3 n = Math::normal(p1,p2);
-				if (n.z < 0) {n = -n;}
-
-				glNormal3f(n.x, n.z, n.z);
-				glVertex3f(quad.p1.x, quad.p1.z, quad.p1.y);
-				glVertex3f(quad.p2.x, quad.p2.z, quad.p2.y);
-				glVertex3f(quad.p3.x, quad.p3.z, quad.p3.y);
-				glVertex3f(quad.p4.x, quad.p4.z, quad.p4.y);
-
-			}
-		glEnd();
-
-		glEnable(GL_CULL_FACE);
-		*/
 	}
 
 	bool isTransparent() const override {
diff --git a/mapview/3D/MapView3D.cpp b/mapview/3D/MapView3D.cpp
index d1e7aab..313783e 100644
--- a/mapview/3D/MapView3D.cpp
+++ b/mapview/3D/MapView3D.cpp
@@ -5,11 +5,11 @@
 #include "../model/MapModelElement.h"
 #include "../model/MapModel.h"
 
-#include "../3DGrid/GridModel.h"
-#include "../3DGrid/GridRenderer.h"
+#include "../3D/grid/GridModel.h"
+#include "../3D/grid/GridRenderer.h"
 
-#include "../3DNavMesh/NavMeshModel.h"
-#include "../3DNavMesh/NavMeshRenderer.h"
+#include "../3D/navMesh/NavMeshModel.h"
+#include "../3D/navMesh/NavMeshRenderer.h"
 
 #include <QPushButton>
 
diff --git a/mapview/3DGrid/GridModel.h b/mapview/3D/grid/GridModel.h
similarity index 100%
rename from mapview/3DGrid/GridModel.h
rename to mapview/3D/grid/GridModel.h
diff --git a/mapview/3DGrid/GridRenderer.h b/mapview/3D/grid/GridRenderer.h
similarity index 100%
rename from mapview/3DGrid/GridRenderer.h
rename to mapview/3D/grid/GridRenderer.h
diff --git a/mapview/3DGrid/MyNode.h b/mapview/3D/grid/MyNode.h
similarity index 100%
rename from mapview/3DGrid/MyNode.h
rename to mapview/3D/grid/MyNode.h
diff --git a/mapview/3D/misc/Cube.cpp b/mapview/3D/misc/Cube.cpp
index 4ba0c3e..de9010e 100644
--- a/mapview/3D/misc/Cube.cpp
+++ b/mapview/3D/misc/Cube.cpp
@@ -47,8 +47,6 @@ static float cube_normals[] = {
 };
 
 
-//static Shader* shader = nullptr;
-
 Cube::Cube(Point3 pos, float size) : pos(pos), size(size,size,size), rot(0,0,0) {
 
 }
diff --git a/mapview/3D/misc/Cube.h b/mapview/3D/misc/Cube.h
index cda6a84..a7a8e9c 100644
--- a/mapview/3D/misc/Cube.h
+++ b/mapview/3D/misc/Cube.h
@@ -1,6 +1,7 @@
 #ifndef CUBE_H
 #define CUBE_H
 
+#include "../../../fixC11.h"
 #include <Indoor/geo/Point3.h>
 #include "Renderable3D.h"
 
@@ -26,82 +27,6 @@ public:
 
 	void render(const RenderSettings& rs) override;
 
-
-
-
-		/*
-
-		  void paintGL(Shader* shader);
-
-		TODO_GL
-
-		glColor3f(color.x, color.y, color.z);
-
-		glPushMatrix();
-
-			// 3) move to destination
-			glTranslatef(pos.x, pos.z, pos.y);	// swap yz
-
-			// 2) rotate
-			glRotatef(rot.x, 1, 0, 0);
-			glRotatef(rot.y, 0, 0, 1);			// swap yz
-			glRotatef(rot.z, 0, 1, 0);
-
-			// 1) scale
-			glScalef(size.x, size.z, size.y);	// swap yz
-
-
-
-			glBegin(GL_QUADS);
-
-				// bottom
-				glNormal3f(0,-1,0);
-				glVertex3f(+s, -s, -s);
-				glVertex3f(+s, -s, +s);
-				glVertex3f(-s, -s, +s);
-				glVertex3f(-s, -s, -s);
-
-				// top
-				glNormal3f(0,+1,0);
-				glVertex3f(-s, +s, -s);
-				glVertex3f(-s, +s, +s);
-				glVertex3f(+s, +s, +s);
-				glVertex3f(+s, +s, -s);
-
-				// left
-				glNormal3f(-1,0,0);
-				glVertex3f(-s, -s, -s);
-				glVertex3f(-s, -s, +s);
-				glVertex3f(-s, +s, +s);
-				glVertex3f(-s, +s, -s);
-
-				// right
-				glNormal3f(+1,0,0);
-				glVertex3f(+s, +s, -s);
-				glVertex3f(+s, +s, +s);
-				glVertex3f(+s, -s, +s);
-				glVertex3f(+s, -s, -s);
-
-				// front
-				glNormal3f(0,0,+1);
-				glVertex3f(+s, +s, +s);
-				glVertex3f(-s, +s, +s);
-				glVertex3f(-s, -s, +s);
-				glVertex3f(+s, -s, +s);
-
-				// rear
-				glNormal3f(0,0,-1);
-				glVertex3f(+s, -s, -s);
-				glVertex3f(-s, -s, -s);
-				glVertex3f(-s, +s, -s);
-				glVertex3f(+s, +s, -s);
-
-			glEnd();
-
-		glPopMatrix();
-
-		*/
-
 };
 
 #endif // CUBE_H
diff --git a/mapview/3D/misc/Handrail.cpp b/mapview/3D/misc/Handrail.cpp
index a206484..3ac2120 100644
--- a/mapview/3D/misc/Handrail.cpp
+++ b/mapview/3D/misc/Handrail.cpp
@@ -1,3 +1,5 @@
+#include "../../../fixC11.h"
+
 #include "Handrail.h"
 
 #include <Indoor/geo/Point3.h>
diff --git a/mapview/3D/misc/Outline.cpp b/mapview/3D/misc/Outline.cpp
index f34b007..b11be41 100644
--- a/mapview/3D/misc/Outline.cpp
+++ b/mapview/3D/misc/Outline.cpp
@@ -1,3 +1,5 @@
+#include "../../../fixC11.h"
+
 #include "Outline.h"
 
 #include <QMatrix4x4>
@@ -19,17 +21,15 @@ void Outline::render(const RenderSettings& rs) {
 
 	// show both sides
 	//glDisable(GL_CULL_FACE);
-	glEnable(GL_CULL_FACE);
+	//glEnable(GL_CULL_FACE);
 
 	rs.shader->setColor(color.x, color.y, color.z);
-	rs.shader->setVertices(vertices.data());
-	rs.shader->setNormals(normals.data());
-	glDrawArrays(GL_TRIANGLES, 0, vertices.size() / 3);
+	rs.shader->setVertices(triangles.getVertices().data());
+	rs.shader->setNormals(triangles.getNormals().data());
+	glDrawArrays(GL_TRIANGLES, 0, triangles.getVertices().size() / 3);
 	rs.shader->unsetVertices();
 	rs.shader->unsetNormals();
 
-
-
 	rs.shader->release();
 
 }
@@ -39,8 +39,7 @@ void Outline::setColor(float r, float g, float b) {
 }
 
 void Outline::clear() {
-	normals.clear();
-	vertices.clear();
+	triangles.clear();
 }
 
 void Outline::add(std::vector<std::vector<Point3>>& triangles) {
@@ -54,18 +53,22 @@ void Outline::add(std::vector<std::vector<Point3>>& triangles) {
 
 			const Point3 n = cross(p2-p1, p3-p1);
 			if (n.z < 0) {
-				vertices.push_back(p1.x);	vertices.push_back(p1.y);	vertices.push_back(p1.z);
-				vertices.push_back(p3.x);	vertices.push_back(p3.y);	vertices.push_back(p3.z);
-				vertices.push_back(p2.x);	vertices.push_back(p2.y);	vertices.push_back(p2.z);
-			} else {
-				vertices.push_back(p1.x);	vertices.push_back(p1.y);	vertices.push_back(p1.z);
-				vertices.push_back(p2.x);	vertices.push_back(p2.y);	vertices.push_back(p2.z);
-				vertices.push_back(p3.x);	vertices.push_back(p3.y);	vertices.push_back(p3.z);
-			}
 
-			normals.push_back(0);		normals.push_back(0);		normals.push_back(1);
-			normals.push_back(0);		normals.push_back(0);		normals.push_back(1);
-			normals.push_back(0);		normals.push_back(0);		normals.push_back(1);
+				// upper side (floor)
+                this->triangles.addTriangle(p1, p3, p2, Point3(0,0,+1));
+
+				// facing downwards (ceiling)
+                this->triangles.addTriangle(p1, p2, p3, Point3(0,0,-1));
+
+			} else {
+
+				// upper side (floor)
+                this->triangles.addTriangle(p1, p2, p3, Point3(0,0,+1));
+
+				// facing downwards (ceiling)
+                this->triangles.addTriangle(p1, p3, p2, Point3(0,0,-1));
+
+			}
 
 		}
 	}
diff --git a/mapview/3D/misc/Outline.h b/mapview/3D/misc/Outline.h
index 435f5de..d9601a5 100644
--- a/mapview/3D/misc/Outline.h
+++ b/mapview/3D/misc/Outline.h
@@ -5,13 +5,13 @@
 #include "Renderable3D.h"
 #include <vector>
 #include <Indoor/geo/Point3.h>
+#include "TriangleData.h"
 
 class Outline : public Renderable3D {
 
 private:
 
-	std::vector<float> vertices;
-	std::vector<float> normals;
+	TriangleData triangles;
 	Point3 color;
 
 public:
diff --git a/mapview/3D/misc/TriangleData.h b/mapview/3D/misc/TriangleData.h
new file mode 100644
index 0000000..b80a050
--- /dev/null
+++ b/mapview/3D/misc/TriangleData.h
@@ -0,0 +1,77 @@
+#ifndef TRIANGLEDATA_H
+#define TRIANGLEDATA_H
+
+#include <vector>
+#include <Indoor/geo/Point3.h>
+
+class TriangleData  {
+
+	std::vector<float> vertices;
+	std::vector<float> normals;
+	std::vector<float> rgba;
+
+public:
+
+	void addTriangle(Point3 p1, Point3 p2, Point3 p3) {
+
+		vertices.insert(vertices.end(), {p1.x, p1.y, p1.z});
+		vertices.insert(vertices.end(), {p2.x, p2.y, p2.z});
+		vertices.insert(vertices.end(), {p3.x, p3.y, p3.z});
+
+	}
+
+	void addTriangle(Point3 p1, Point3 p2, Point3 p3, const Point3 n) {
+
+		vertices.insert(vertices.end(), {p1.x, p1.y, p1.z});
+		vertices.insert(vertices.end(), {p2.x, p2.y, p2.z});
+		vertices.insert(vertices.end(), {p3.x, p3.y, p3.z});
+
+		normals.insert(normals.end(), {n.x, n.y, n.z});
+		normals.insert(normals.end(), {n.x, n.y, n.z});
+		normals.insert(normals.end(), {n.x, n.y, n.z});
+
+	}
+
+	void addTriangle(Point3 p1, Point3 p2, Point3 p3, const Point3 n, const float r, const float g, const float b, const float a) {
+
+		vertices.insert(vertices.end(), {p1.x, p1.y, p1.z});
+		vertices.insert(vertices.end(), {p2.x, p2.y, p2.z});
+		vertices.insert(vertices.end(), {p3.x, p3.y, p3.z});
+
+		normals.insert(normals.end(), {n.x, n.y, n.z});
+		normals.insert(normals.end(), {n.x, n.y, n.z});
+		normals.insert(normals.end(), {n.x, n.y, n.z});
+
+		rgba.insert(rgba.end(), {r,g,b,a});
+		rgba.insert(rgba.end(), {r,g,b,a});
+		rgba.insert(rgba.end(), {r,g,b,a});
+		rgba.insert(rgba.end(), {r,g,b,a});
+
+	}
+
+
+	void addLine(Point3 p1, Point3 p2, const float r, const float g, const float b, const float a) {
+
+		vertices.insert(vertices.end(), {p1.x, p1.y, p1.z});
+		vertices.insert(vertices.end(), {p2.x, p2.y, p2.z});
+
+		rgba.insert(rgba.end(), {r,g,b,a});
+		rgba.insert(rgba.end(), {r,g,b,a});
+
+	}
+
+	void clear() {
+		vertices.clear();
+		normals.clear();
+		rgba.clear();
+	}
+
+	const std::vector<float>& getVertices() {return vertices;}
+
+	const std::vector<float>& getNormals() {return normals;}
+
+	const std::vector<float>& getRGBA() {return rgba;}
+
+};
+
+#endif // TRIANGLEDATA_H
diff --git a/mapview/3D/misc/Window.cpp b/mapview/3D/misc/Window.cpp
index c98826c..ae4d083 100644
--- a/mapview/3D/misc/Window.cpp
+++ b/mapview/3D/misc/Window.cpp
@@ -1,3 +1,5 @@
+#include "../../../fixC11.h"
+
 #include "Window.h"
 #include "Shader.h"
 
diff --git a/mapview/3DNavMesh/NavMeshModel.h b/mapview/3D/navMesh/NavMeshModel.h
similarity index 100%
rename from mapview/3DNavMesh/NavMeshModel.h
rename to mapview/3D/navMesh/NavMeshModel.h
diff --git a/mapview/3D/navMesh/NavMeshRenderer.h b/mapview/3D/navMesh/NavMeshRenderer.h
new file mode 100644
index 0000000..734130a
--- /dev/null
+++ b/mapview/3D/navMesh/NavMeshRenderer.h
@@ -0,0 +1,157 @@
+#ifndef NAVMESHRENDERER_H
+#define NAVMESHRENDERER_H
+
+
+
+#include <unordered_set>
+#include <Indoor/navMesh/NavMesh.h>
+#include <Indoor/navMesh/NavMeshTriangle.h>
+#include <Indoor/navMesh/NavMeshType.h>
+
+#include <QPainter>
+#include <QOpenGLWidget>
+
+#include "../misc/Renderable3D.h"
+#include "../misc/Shader.h"
+#include "../misc/TriangleData.h"
+
+class NavMeshRenderer {
+
+private:
+
+	// settings
+	//GridRendererColorMode colorMode = GridRendererColorMode::SHOW_NODE_IMPORTANCE;
+	bool showEdges = false;
+
+	struct Color {
+		float r,g,b;
+		Color() : r(1), g(0), b(0) {;}
+		Color(float r, float g, float b) : r(r), g(g), b(b) {;}
+	};
+
+	/** node color depending on the node's type. see ctor */
+	Color colors[200];
+
+public:
+
+	/** ctor */
+	NavMeshRenderer()  {
+
+		colors[GridNode::TYPE_FLOOR] = Color(0.4, 0.4, 0.4);
+		colors[GridNode::TYPE_STAIR] = Color(0,0,1);
+		colors[GridNode::TYPE_ELEVATOR] = Color(0,0,1);
+		colors[GridNode::TYPE_DOOR] = Color(0.0, 0.0, 0.0);
+
+		colors[GridNode::TYPE_OUTDOOR] = Color(0.0, 0.5, 0.0);
+
+	}
+
+
+//	void setNodeColorMode(const GridRendererColorMode mode) {this->colorMode = mode;}
+	void setShowEdges(const bool show) {this->showEdges = show;}
+
+
+	/** render the given grid using GL commands */
+	void render(const RenderSettings& rs, NM::NavMesh<NM::NavMeshTriangle>* navMesh, QOpenGLWidget* dst) {
+
+		if (navMesh == nullptr) {return;}
+
+
+		rs.shader->bind();
+		rs.shader->setModelMatrix(QMatrix4x4());
+
+		TriangleData data;
+
+		for (const NM::NavMeshTriangle* tria : *navMesh) {
+
+			Point3 color;
+
+			switch (tria->getType()) {
+				case (int) NM::NavMeshType::FLOOR_INDOOR:	color = Point3(0.8, 0.8, 0.8); break;
+				case (int) NM::NavMeshType::FLOOR_OUTDOOR:	color = Point3(0.1, 0.8, 0.1); break;
+				case (int) NM::NavMeshType::DOOR:			color = Point3(0.7, 0.7, 0.8); break;
+				case (int) NM::NavMeshType::STAIR_LEVELED:	color = Point3(0.5, 0.5, 0.5); break;
+				case (int) NM::NavMeshType::STAIR_SKEWED:	color = Point3(0.6, 0.6, 0.6); break;
+			}
+
+			data.addTriangle(tria->getP1(), tria->getP3(), tria->getP2(), Point3(0,0,1), color.x, color.y, color.z, 1.0f);
+
+//			vertices.insert(vertices.end(), {tria->getP1().x, tria->getP1().y, tria->getP1().z});
+//			vertices.insert(vertices.end(), {tria->getP3().x, tria->getP3().y, tria->getP3().z});
+//			vertices.insert(vertices.end(), {tria->getP2().x, tria->getP2().y, tria->getP2().z});
+
+//			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
+//			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
+//			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
+
+		}
+
+		rs.shader->setVertices(data.getVertices().data());
+		rs.shader->setVertexColor(data.getRGBA().data());
+		glDrawArrays(GL_TRIANGLES, 0, data.getVertices().size()/3);
+		rs.shader->unsetVertices();
+		rs.shader->unsetVertexColor();
+
+		data.clear();
+
+
+		for (const NM::NavMeshTriangle* tria : *navMesh) {
+
+			Point3 color;
+
+			switch (tria->getType()) {
+				case (int) NM::NavMeshType::FLOOR_INDOOR:	color = Point3(0.6, 0.6, 0.6); break;
+				case (int) NM::NavMeshType::FLOOR_OUTDOOR:	color = Point3(0.0, 0.6, 0.0); break;
+				case (int) NM::NavMeshType::DOOR:			color = Point3(0.5, 0.5, 0.6); break;
+				case (int) NM::NavMeshType::STAIR_LEVELED:	color = Point3(0.4, 0.4, 0.4); break;
+				case (int) NM::NavMeshType::STAIR_SKEWED:	color = Point3(0.4, 0.4, 0.4); break;
+			}
+
+			const float o = 0.001f;
+			data.addLine(tria->getP1(), tria->getP2(), color.x, color.y, color.z, 1);
+			data.addLine(tria->getP2(), tria->getP3(), color.x, color.y, color.z, 1);
+			data.addLine(tria->getP3(), tria->getP1(), color.x, color.y, color.z, 1);
+
+//			vertices.insert(vertices.end(), {tria->getP1().x, tria->getP1().y, tria->getP1().z+o});
+//			vertices.insert(vertices.end(), {tria->getP2().x, tria->getP2().y, tria->getP2().z+o});
+
+//			vertices.insert(vertices.end(), {tria->getP2().x, tria->getP2().y, tria->getP2().z+o});
+//			vertices.insert(vertices.end(), {tria->getP3().x, tria->getP3().y, tria->getP3().z+o});
+
+//			vertices.insert(vertices.end(), {tria->getP3().x, tria->getP3().y, tria->getP3().z+o});
+//			vertices.insert(vertices.end(), {tria->getP1().x, tria->getP1().y, tria->getP1().z+o});
+
+//			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
+//			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
+//			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
+//			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
+//			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
+//			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
+
+		}
+
+		rs.shader->setVertices(data.getVertices().data());
+		rs.shader->setVertexColor(data.getRGBA().data());
+		glDrawArrays(GL_LINES, 0, data.getVertices().size()/3);
+		rs.shader->unsetVertices();
+		rs.shader->unsetVertexColor();
+
+		rs.shader->release();
+
+	}
+
+//	std::vector<MyNode> lint() {
+//		std::vector<MyNode> vec;
+//		lintStair(vec);
+//		return vec;
+//	}
+
+//	void lintStair(std::vector<MyNode>& vec) {
+//		for (MyNode& n1 : *grid) {
+//			if (n1.getNumNeighbors() <= 5) { vec.push_back(n1);}
+//		}
+//	}
+
+};
+
+#endif // NAVMESHRENDERER_H
diff --git a/mapview/3DNavMesh/QNavMeshSettings.cpp b/mapview/3D/navMesh/QNavMeshSettings.cpp
similarity index 100%
rename from mapview/3DNavMesh/QNavMeshSettings.cpp
rename to mapview/3D/navMesh/QNavMeshSettings.cpp
diff --git a/mapview/3DNavMesh/QNavMeshSettings.h b/mapview/3D/navMesh/QNavMeshSettings.h
similarity index 100%
rename from mapview/3DNavMesh/QNavMeshSettings.h
rename to mapview/3D/navMesh/QNavMeshSettings.h
diff --git a/mapview/3DNavMesh/NavMeshRenderer.h b/mapview/3DNavMesh/NavMeshRenderer.h
deleted file mode 100644
index 1f34fda..0000000
--- a/mapview/3DNavMesh/NavMeshRenderer.h
+++ /dev/null
@@ -1,237 +0,0 @@
-#ifndef NAVMESHRENDERER_H
-#define NAVMESHRENDERER_H
-
-
-
-#include <unordered_set>
-#include <Indoor/navMesh/NavMesh.h>
-#include <Indoor/navMesh/NavMeshTriangle.h>
-#include <Indoor/navMesh/NavMeshType.h>
-
-#include <QPainter>
-#include <QOpenGLWidget>
-
-#include "../3D/misc/Renderable3D.h"
-#include "../3D/misc/Shader.h"
-
-class NavMeshRenderer {
-
-private:
-
-	// settings
-	//GridRendererColorMode colorMode = GridRendererColorMode::SHOW_NODE_IMPORTANCE;
-	bool showEdges = false;
-
-	struct Color {
-		float r,g,b;
-		Color() : r(1), g(0), b(0) {;}
-		Color(float r, float g, float b) : r(r), g(g), b(b) {;}
-	};
-
-	/** node color depending on the node's type. see ctor */
-	Color colors[200];
-
-public:
-
-	/** ctor */
-	NavMeshRenderer()  {
-
-		colors[GridNode::TYPE_FLOOR] = Color(0.4, 0.4, 0.4);
-		colors[GridNode::TYPE_STAIR] = Color(0,0,1);
-		colors[GridNode::TYPE_ELEVATOR] = Color(0,0,1);
-		colors[GridNode::TYPE_DOOR] = Color(0.0, 0.0, 0.0);
-
-		colors[GridNode::TYPE_OUTDOOR] = Color(0.0, 0.5, 0.0);
-
-	}
-
-
-//	void setNodeColorMode(const GridRendererColorMode mode) {this->colorMode = mode;}
-	void setShowEdges(const bool show) {this->showEdges = show;}
-
-
-	/** render the given grid using GL commands */
-	void render(const RenderSettings& rs, NM::NavMesh<NM::NavMeshTriangle>* navMesh, QOpenGLWidget* dst) {
-
-		if (navMesh == nullptr) {return;}
-
-
-		rs.shader->bind();
-		rs.shader->setModelMatrix(QMatrix4x4());
-
-		std::vector<float> vertices;
-		std::vector<float> colors;
-
-		for (const NM::NavMeshTriangle* tria : *navMesh) {
-
-			Point3 color;
-
-			switch (tria->getType()) {
-				case (int) NM::NavMeshType::FLOOR_INDOOR:	color = Point3(0.8, 0.8, 0.8); break;
-				case (int) NM::NavMeshType::FLOOR_OUTDOOR:	color = Point3(0.1, 0.8, 0.1); break;
-				case (int) NM::NavMeshType::DOOR:			color = Point3(0.7, 0.7, 0.8); break;
-				case (int) NM::NavMeshType::STAIR_LEVELED:	color = Point3(0.5, 0.5, 0.5); break;
-				case (int) NM::NavMeshType::STAIR_SKEWED:	color = Point3(0.6, 0.6, 0.6); break;
-			}
-
-			vertices.insert(vertices.end(), {tria->getP1().x, tria->getP1().y, tria->getP1().z});
-			vertices.insert(vertices.end(), {tria->getP3().x, tria->getP3().y, tria->getP3().z});
-			vertices.insert(vertices.end(), {tria->getP2().x, tria->getP2().y, tria->getP2().z});
-
-			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
-			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
-			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
-
-		}
-
-		rs.shader->setVertices(vertices.data());
-		rs.shader->setVertexColor(colors.data());
-		glDrawArrays(GL_TRIANGLES, 0, vertices.size()/3);
-		rs.shader->unsetVertices();
-		rs.shader->unsetVertexColor();
-
-		vertices.clear();
-		colors.clear();
-
-		for (const NM::NavMeshTriangle* tria : *navMesh) {
-
-			Point3 color;
-
-			switch (tria->getType()) {
-				case (int) NM::NavMeshType::FLOOR_INDOOR:	color = Point3(0.6, 0.6, 0.6); break;
-				case (int) NM::NavMeshType::FLOOR_OUTDOOR:	color = Point3(0.0, 0.6, 0.0); break;
-				case (int) NM::NavMeshType::DOOR:			color = Point3(0.5, 0.5, 0.6); break;
-				case (int) NM::NavMeshType::STAIR_LEVELED:	color = Point3(0.4, 0.4, 0.4); break;
-				case (int) NM::NavMeshType::STAIR_SKEWED:	color = Point3(0.4, 0.4, 0.4); break;
-			}
-
-			const float o = 0.001f;
-			vertices.insert(vertices.end(), {tria->getP1().x, tria->getP1().y, tria->getP1().z+o});
-			vertices.insert(vertices.end(), {tria->getP2().x, tria->getP2().y, tria->getP2().z+o});
-
-			vertices.insert(vertices.end(), {tria->getP2().x, tria->getP2().y, tria->getP2().z+o});
-			vertices.insert(vertices.end(), {tria->getP3().x, tria->getP3().y, tria->getP3().z+o});
-
-			vertices.insert(vertices.end(), {tria->getP3().x, tria->getP3().y, tria->getP3().z+o});
-			vertices.insert(vertices.end(), {tria->getP1().x, tria->getP1().y, tria->getP1().z+o});
-
-			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
-			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
-			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
-			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
-			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
-			colors.insert(colors.end(), {color.x, color.y, color.z, 1});
-
-		}
-
-		rs.shader->setVertices(vertices.data());
-		rs.shader->setVertexColor(colors.data());
-		glDrawArrays(GL_LINES, 0, vertices.size()/3);
-		rs.shader->unsetVertices();
-		rs.shader->unsetVertexColor();
-
-		rs.shader->release();
-
-
-		/*
-
-		TODO_GL
-
-		glDisable(GL_LIGHTING);
-
-		const float s = 2;
-
-		glBegin(GL_TRIANGLES);
-			for (const NM::NavMeshTriangle* tria : *navMesh) {
-
-
-
-				switch (tria->getType()) {
-					case (int) NM::NavMeshType::FLOOR_INDOOR:	glColor3f(0.8, 0.8, 0.8); break;
-					case (int) NM::NavMeshType::FLOOR_OUTDOOR:	glColor3f(0.1, 0.8, 0.1); break;
-					case (int) NM::NavMeshType::DOOR:			glColor3f(0.7, 0.7, 0.8); break;
-					case (int) NM::NavMeshType::STAIR_LEVELED:	glColor3f(0.5, 0.5, 0.5); break;
-					case (int) NM::NavMeshType::STAIR_SKEWED:	glColor3f(0.6, 0.6, 0.6); break;
-				}
-
-				glVertex3f(tria->getP1().x, tria->getP1().z, tria->getP1().y);
-				glVertex3f(tria->getP2().x, tria->getP2().z, tria->getP2().y);
-				glVertex3f(tria->getP3().x, tria->getP3().z, tria->getP3().y);
-
-			}
-		glEnd();
-
-
-		glEnable(GL_MULTISAMPLE);
-		//glEnable(GL_LINE_SMOOTH);
-
-		glBegin(GL_LINES);
-			//glColor3f(0.2,0.2,0.2);
-			for (const NM::NavMeshTriangle* tria : *navMesh) {
-
-				switch (tria->getType()) {
-					case (int) NM::NavMeshType::FLOOR_INDOOR:	glColor3f(0.6, 0.6, 0.6); break;
-					case (int) NM::NavMeshType::FLOOR_OUTDOOR:	glColor3f(0.0, 0.6, 0.0); break;
-					case (int) NM::NavMeshType::DOOR:			glColor3f(0.5, 0.5, 0.6); break;
-					case (int) NM::NavMeshType::STAIR_LEVELED:	glColor3f(0.4, 0.4, 0.4); break;
-					case (int) NM::NavMeshType::STAIR_SKEWED:	glColor3f(0.4, 0.4, 0.4); break;
-				}
-
-				glVertex3f(tria->getP1().x, tria->getP1().z+0.01, tria->getP1().y);
-				glVertex3f(tria->getP2().x, tria->getP2().z+0.01, tria->getP2().y);
-
-				glVertex3f(tria->getP2().x, tria->getP2().z+0.01, tria->getP2().y);
-				glVertex3f(tria->getP3().x, tria->getP3().z+0.01, tria->getP3().y);
-
-				glVertex3f(tria->getP3().x, tria->getP3().z+0.01, tria->getP3().y);
-				glVertex3f(tria->getP1().x, tria->getP1().z+0.01, tria->getP1().y);
-
-//				glBegin(GL_LINE_LOOP);
-//				glVertex3f(tria->getP1().x, tria->getP1().z+0.01, tria->getP1().y);
-//				glVertex3f(tria->getP2().x, tria->getP2().z+0.01, tria->getP2().y);
-//				glVertex3f(tria->getP3().x, tria->getP3().z+0.01, tria->getP3().y);
-//				glEnd();
-			}
-
-		glEnd();
-
-		glEnable(GL_LIGHTING);
-
-
-//		qp.drawText(20,20, "sdfsdkflsdfjasfklsdklfsdklfsdf");
-//		qp.drawText(20,-20, "sdfsdkflsdfjasfklsdklfsdklfsdf");
-//		qp.drawText(0.5,0.5, "sdfsdkflsdfjasfklsdklfsdklfsdf");
-//		qp.end();
-
-//		renderText(1,1,1, "123");
-
-		const QString str1 = "Triangles: " + QString::number(navMesh->getNumTriangles());
-		const QString str2 = "Size:      ~" + QString::number(navMesh->getNumTriangles() * sizeof(NM::NavMeshTriangle) / 1024) + " kB";
-
-		glColor3f(0.0, 0.0, 0.0);
-		dst->renderText(20,20, str1);
-		dst->renderText(20,35, str2);
-
-	//	dst->renderText(0,0, "2342342342342423423423423423423432");
-	//	dst->renderText(0.1, 0.1, 0.1, "lsdfsdfsdfsdfsdfsdfsdfol");
-
-
-		*/
-
-	}
-
-//	std::vector<MyNode> lint() {
-//		std::vector<MyNode> vec;
-//		lintStair(vec);
-//		return vec;
-//	}
-
-//	void lintStair(std::vector<MyNode>& vec) {
-//		for (MyNode& n1 : *grid) {
-//			if (n1.getNumNeighbors() <= 5) { vec.push_back(n1);}
-//		}
-//	}
-
-};
-
-#endif // NAVMESHRENDERER_H
diff --git a/mapview/model/MapModel.h b/mapview/model/MapModel.h
index f0e551f..c31015d 100644
--- a/mapview/model/MapModel.h
+++ b/mapview/model/MapModel.h
@@ -22,9 +22,6 @@ class MapModel : public QObject, public MapLayerListener {
 
 private:
 
-	///** wrapper-classes for all elements */
-	//std::vector<MapModelElement*> selElements;
-
 	/** the map's root-layer containing all other layers */
 	MapLayer* root = nullptr;
 
@@ -74,6 +71,7 @@ public:
 		if (root) {delete root; root = nullptr;}
 	}
 
+	/** load map from file */
 	void load(const std::string& file) {
 
 		emit aboutToReset();
@@ -90,6 +88,7 @@ public:
 
 	}
 
+	/** save map to file */
 	void save(const std::string& file) {
 
 		Floorplan::Writer::writeToFile(im, file);
diff --git a/params/ToolBox.cpp b/params/ToolBoxWidget.cpp
similarity index 100%
rename from params/ToolBox.cpp
rename to params/ToolBoxWidget.cpp