The user has to create a surface line with ascending x-value from channel side of the embankment till the dike top at the polder side.
You can re-order the points, ascending or descending, by clicking on the table header L(enght) of Z(height level)
You get the real order the point, as shown in the drawings, by "Ctrl + click"
It is not impossible to enter a malformed geometry.
The riverside has to be on the left side
The following 5 characteristics points are obligated in the order 1 till 5 with ascending X-value
- Bottom river channel
- Insert river channel
- Dike toe at river
- Dike top at river
- Dike top at polder
Please enter your Surface line according this picture
The description of these parameters can be found on the page Input parameters.