FAQ/ I can't edit the drainage area for some reason.¶
In a DioVSITA project, it is not possible to edit the shape of the drainage zone on the screen.
The drainage zone polygon data in this project file was created using PowerShell.
When I checked the project, the data in the project file is in an abnormal state.
The polygon has the same start and end points. Remove the last point.
Note that such a state cannot be created by normal operation of DioVISTA. It seems that it is necessary to modify the PowerShell used when creating drainage zone polygon data there.