Kristina Isberg

That might be the problem, try some smaller areas. You can also try to change the tile size. Go to the "Hydro" Tab and "Create". There you can change this.

Great to hear! Then I hope you will get subbasins in the format you wish. Kind regards, Kristina

Dear Syamsul, "Java heap space" means that there is not enough memory for the WHIST action. Try to add "-Xmx10240M" to the .bat file (if you have RAM > 16 GB or more). Could you please also send me a screen shot of the grid management window as well (go to the main menu/basin/grid folders)

I wonder about the ACC grid. Are the green areas within the grid "nodata"? If so, this might be thee reason for both one-pixel-size subbasins and it is nor possible to "fill up" without a proper Flow accumulation grid. Kind regards Kristina

Dear Syamsul, it is difficult to know why there are holes. Could you send me images of your grids? Bith Flow accumulation and flow direction grid in this area? You have many subbasins of "one pixel size", what kind of area is it? kind regards, Kristina

Hello, Thank you for informing us about this bug. we are well aware of this but have had this kind pf problems in Qgis working with many different files so we have somehow get used to fix all files before starting Qgis processing. But we should perhaps look into this in the future.

Happy to hear that it works now. Good luck with your future work.

OK, if you open Hydro/Create - which "Method Parameters"do you refer to? And if you click on the edit button - do you have the duoro bil file as the Acc-grid? If not change. The tools use the grids shown there (and you can have several choices of "Method Parameters" saved).