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0 votes

Dear friends,

I've tried to extract manning's n values for the cross-sections at my site of interest, however I was quite struggling with that. The RiverGis kept saying ProgrammingError('function st_line_interpolate_point(geometry, numeric) does not exist\nLINE 39: ST_Line_Interpolate_Point(inter_xs_dump.geom, 0.0000...\n ^\nHINT: No function matches the given name and argument types. You might need to add explicit type casts.\n')

Process aborted!

Therefore I've tried the same process with BaldEagle sample data but the result is just the same! The same error occuts. I am getting helpless, does anybody faced the same problem? My input polygon layer has just the same features and structure as the one in sample data. 

Thanks for any kind of help!



1 Answer

0 votes

I have the same problem. Did you manage to solve?

The first time I had this issue I thought it was due to an error in the geometry of the landuse layer, but now I have an automatically-created one so the problem must be elsewhere.

Please give me feedback.

Thank you so much!
Hello, unfortunately I was unable to go through this step and I have not found where the problem was, moreover its all data provided by the developer and I have not changed anything as I wanted to firstly run the model just on provided data. When I tried with my own data I was unable to go through either. I tried to create the layer in hecras (in mapper) and it worked. However, during data processing I've decided to use 1-D model so I did not use the layer in the end.
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