removed gridSize from the template arguments

- not needed and code much cleaner
some minor changes
new test-cases

grid/factory/GridFactory.h

@@ -11,7 +11,7 @@
 
 #include "../../misc/Debug.h"
 
-template <int gridSize_cm, typename T> class GridFactory {
+template <typename T> class GridFactory {
 
 	/** logging name */
 	static constexpr const char* name = "GridFac";
@@ -19,19 +19,21 @@ template <int gridSize_cm, typename T> class GridFactory {
 private:
 
 	/** the grid to build into */
-	Grid<gridSize_cm, T>& grid;
+	Grid<T>& grid;
 
 
 public:
 
 	/** ctor with the grid to fill */
-	GridFactory(Grid<gridSize_cm, T>& grid) : grid(grid) {;}
+	GridFactory(Grid<T>& grid) : grid(grid) {;}
 
 	/** add the given floor at the provided height (in cm) */
 	void addFloor(const Floor& floor, const float z_cm) {
 
 		Log::add(name, "adding floor at height " + std::to_string(z_cm));
 
+		const float gridSize_cm = grid.getGridSize_cm();
+
 		// build grid-points
 		for(int x_cm = 0; x_cm < floor.getWidth_cm(); x_cm += gridSize_cm) {
 			for (int y_cm = 0; y_cm < floor.getDepth_cm(); y_cm += gridSize_cm) {
@@ -55,6 +57,8 @@ public:
 
 		Log::add(name, "connecting all adjacent nodes at height " + std::to_string(z_cm));
 
+		const int gridSize_cm = grid.getGridSize_cm();
+
 		// connect adjacent grid-points
 		for (int idx = 0; idx < grid.getNumNodes(); ++idx) {
 
@@ -132,6 +136,8 @@ public:
 		int idx2 = -1;
 		const int idx3 = n2.getIdx();
 
+		const int gridSize_cm = grid.getGridSize_cm();
+
 		// move upards in gridSize steps
 		for (int z = gridSize_cm; z < zDiff; z+= gridSize_cm) {
 
@@ -161,11 +167,13 @@ public:
 	}
 
 	/** add the inverted version of the given z-layer */
-	void addInverted(const Grid<gridSize_cm, T>& gIn, const float z_cm) {
+	void addInverted(const Grid<T>& gIn, const float z_cm) {
 
 		// get the original grid's bbox
 		BBox3 bb = gIn.getBBox();
 
+		const int gridSize_cm = grid.getGridSize_cm();
+
 		// build new grid-points
 		for(int x_cm = bb.getMin().x; x_cm <= bb.getMax().x; x_cm += gridSize_cm) {
 			for (int y_cm = bb.getMin().y; y_cm < bb.getMax().y; y_cm += gridSize_cm) {