Hello,

I have a problem with resistance file in Mike 21. When I am preparing resistance file, mike 21 see minus values inside, although basis raster have Manning values in range 3-50. I am using Mike Zero Toolbox, GIS, Grid2Mike. In fact minus values are artificial, because I tried to change them by selection, but the program do not select anything. With minus values of resistsance it is impossible to start the computation. I tried generate resistance raster (from polygon shapefile) in many ways and it also doesn't work.

Best regards,

Ewelina

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