Opened 3 years ago

Last modified 2 years ago

#3605 new defect

r.flow incorrect output with upslope flag

Reported by: marisn Owned by: grass-dev@…
Priority: normal Milestone: 7.6.2
Component: Raster Version: svn-trunk
Keywords: r.flow Cc:
CPU: Unspecified Platform: Unspecified

Description

With certain slope configurations r.flow produces really strange output.

g.region n=200 s=0 e=200 w=0 res=1
r.mapcalc expression="sincos=sin(row()*5)*cos(col()*5)"
r.flow -u elevation=sincos flowlength=flow_path

There is an old report of potentially incorrect array access, but no idea if it might be related: #1311

Attachments (1)

r.flow.png (61.9 KB) - added by marisn 3 years ago.
Notice horizontal dark blue lines - they shouldn't be there as surface is smooth in all directions from peaks to pits

Download all attachments as: .zip

Change History (3)

Changed 3 years ago by marisn

Attachment: r.flow.png added

Notice horizontal dark blue lines - they shouldn't be there as surface is smooth in all directions from peaks to pits

comment:1 Changed 2 years ago by martinl

Milestone: 7.6.07.6.1

Ticket retargeted after milestone closed

comment:2 Changed 2 years ago by martinl

Milestone: 7.6.17.6.2

Ticket retargeted after milestone closed

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