Index: dam engine/trunk/doc/Dam Engine - Functional Design/DataCombination.tex
===================================================================
diff -u -r368 -r370
--- dam engine/trunk/doc/Dam Engine - Functional Design/DataCombination.tex	(.../DataCombination.tex)	(revision 368)
+++ dam engine/trunk/doc/Dam Engine - Functional Design/DataCombination.tex	(.../DataCombination.tex)	(revision 370)
@@ -45,8 +45,16 @@
 	\label{fig:SubSoilElements}
 \end{figure}
 
-By linking the location to a soil segment, see \autoref{sec:location}, \ProgramName combines the location to the soil profiles of the soil segment. For piping calculations this is sufficient, for macrostability calculations a 2D-profile is necessary. This is described in \autoref{sec:CombiSurfaceLineSoilProfile}.
+By linking the location to a soil segment, see \autoref{sec:location}, \ProgramName combines the location to all soil profiles of the soil segment. The procedure for combining a surfaceline with a soil profile is described in \autoref{sec:CombiSurfaceLineSoilProfile}.
 
 \section{Combination of surface line with soil profile}\label{sec:CombiSurfaceLineSoilProfile}
+\subsection{Combination of surface line with a 1D soilprofile}\label{sec:CombiSurfaceLine1DSoilProfile}
+A 1D soil profile is a summation of layers with layer boundaries (Z-values) and materialnames. Combination with a surfaceline is uncomplicated if all the Z-values of the surface line are within the boundaries of the soil profile.
+If not, the user can define a filling material.
 
+\subsection{Combination of surface line with a 2D soilprofile}\label{sec:CombiSurfaceLine2DSoilProfile}
+A 2D profile already has a topboundary with different Z-values. Combiniation with a surface line is more complicated since this top boundary and surfacel may differ in X and/or Z-values.
+The origin of the surfaceline can differ from the origin of the top boundary of the soil profile. The user can define this difference. The surfaceline is determing the final length of the combinated 2D-profile.
+If the surface line $\l$ soil profile length: subsoil at the right side will be deleted
+If the surface line $\g$ soil profile length: subsoil at the right side will be generated with Z-values at boundary.
 
