Index: DamEngine/trunk/doc/Dam Engine - Functional Design/REQDataGenerationWater.tex
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diff -u -r2674 -r2756
--- DamEngine/trunk/doc/Dam Engine - Functional Design/REQDataGenerationWater.tex	(.../REQDataGenerationWater.tex)	(revision 2674)
+++ DamEngine/trunk/doc/Dam Engine - Functional Design/REQDataGenerationWater.tex	(.../REQDataGenerationWater.tex)	(revision 2756)
@@ -62,8 +62,12 @@
 
 Lower levels relative to the reference point/plane are stated as positive values. When schematising a rise in the phreatic plane under the crest, the offset are stated as a negative value. 
 
+When the waterlevel is higher then Z Dike top at river calculating can not be made: message is given.
+
 The determination of the intersection of the water level with the outer slope (point A in \autoref{tab:OffsetRRD})is made between the characteristic points Dike toe at river and Dike crest at river. So if the surfacelevel left of the Dike toe at river is above the phreatic line the eventual intersections are ignored.
+If there is no intersection between the phreatic line and the surface line because the water level (high and low) is lower than the minimum Z value of the surface line, then the phreatic line is horizontal until the X = X dike toe at river. From there the phreatic line goes to next available offset points Dike top at river (B) etc. 
 
+
 \subsection {ExpertKnowledgeLineairDike}
 Here, the phreatic plane starts where the outer water level (Point A in \autoref{fig:PL1Linear} intersects the outer slope. It then continues in a straight line to point E and then to point F.