added guest review, additional changes in transition

tex_review/chapters/transition.tex

@@ -111,8 +111,10 @@
 		resides within a polygon that is actually walkable from the starting position.}
 		\add{Just as before, the navigation mesh can be \emph{automatically}
 		generated from the building's floor plan, based on
-		various algorithms \cite{navMeshAlg1, kallmann2010navigation, van2011navigation}.
-		}
+		various algorithms \cite{navMeshAlg1, kallmann2010navigation, van2011navigation}.}
+		\addy{In contrast to the grid, the number of triangles depend on the size and shape of the 		building as well as the used algorithm. 
+		Increasing the density of triangles intentionally, does not improve the accuracy, as would be 			the case for grid cells of the graph, due to aforementioned continues movement characteristic. 
+		This also removes the need of defining some kind of initial polygon density for the mesh, 			like the spacing of the grid cells, what makes it more flexible.}
 
 	Using variably shaped/sized elements instead of rigid grid-cells
 	provides both, higher accuracy for reaching every corner, and a reduced