RAS MAPPER – Interpolated Surfaces for Cross Section

[Anonymous]

Hi there,

I have a problem about how does the HEC-RAS generate the interpolated surface. I have a channel has one interpolated surface from the first XS to the last one. However, this does not impact on the calculation, but it does impact on the mapping results.

Screenshots show the interpolated surface and resulting maps are here https://drive.google.com/drive/folders/1qUMsDYmMyoTBmL-jkVd9Imz7Nn8wd6zi?usp=sharing

Really appreciated if anyone have the similar situation and can provide solutions.

CJ

[TypicalEngineer]

In the geometry window where you are getting ready to interpolate lines there are two radio buttons mid window. Top is selected by default. You want the second one where it vaugely suggests to interpolate lines along or centered on the streamline. This option is needed for geo referenced models. See if that helps.

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