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Please enter your Surface line  according this picture by using points B, C, D, G and J
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So, thhe following 5 characteristics points are obligated in D-FlowSlide with ascending x-valuevalues.
- Bottom river channel (B)
- Insert river channel (C)
- Dike toe at river (D)
- Dike top at river (G)
- Dike top at polder (J)
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