Opened 8 years ago

Closed 5 years ago

#2979 closed enhancement (fixed)

r.watershed: better documentation for 'drainage' w/ MFD

Reported by: mankoff Owned by: grass-dev@…
Priority: normal Milestone: 7.6.0
Component: Docs Version: unspecified
Keywords: r.watershed Cc: mankoff@…
CPU: Unspecified Platform: All

Description

When using MFD, is the drainage direction the direction of maximum flow? This isn't explicitly stated in the documentation. What if there is equal drainage in two directions?

Change History (9)

comment:1 by martinl, 8 years ago

Keywords: r.watershed added

in reply to:  description comment:2 by mmetz, 8 years ago

Replying to mankoff:

When using MFD, is the drainage direction the direction of maximum flow? This isn't explicitly stated in the documentation. What if there is equal drainage in two directions?

Yes, for MFD drainage direction follows maximum flow. In case of equal flow in more than one direction, the first encountered is used. This could be refined by using the steepest slope in case of equal flow. However, with MFD chances are very small that several directions have equal flow.

comment:3 by martinl, 8 years ago

Milestone: 7.0.47.0.5

comment:4 by martinl, 8 years ago

Milestone: 7.0.57.3.0

comment:5 by martinl, 8 years ago

Milestone: 7.3.07.4.0

Milestone renamed

comment:6 by neteler, 6 years ago

Milestone: 7.4.07.4.1

Ticket retargeted after milestone closed

comment:7 by neteler, 6 years ago

Milestone: 7.4.17.4.2

comment:8 by martinl, 6 years ago

Milestone: 7.4.27.6.0

All enhancement tickets should be assigned to 7.6 milestone.

comment:9 by mankoff, 5 years ago

Resolution: fixed
Status: newclosed

It appears this was fixed in [68419] on 11 May 2016 about a month after the ticket was opened.

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