Re: [GRASS-user] How can I locate points on a river?

[Micha Silver]

  
  


On 6/21/22 13:32, Thomas Adams wrote:


  
  
Hi Micha!
  
  
  Thank you for the suggestion — yes, I think so; I just
started looking at v.segment… the capability of GRASS
continues to amaze me! Your help is much appreciated!
  
  

  

Me too! Now there is the cloud based actinia to run GRASS modules
  "close to the data". 






  

  BTW, on a separate note… did you get my email some time
ago about revising the "Flood Forecasting: a global
perspective" book? Are you and your colleague interested in
making any additions or revisions to your book chapter for
the 2nd edition? Others reading this, who may be interested,
please contact me!
  
  

  

Yes, I did. The lead author is employed privately now, so I doubt
  he's interested. I contacted the third author, and did not get a
  very enthusiastic response. Maybe I'll reach out to the lead
  author anyway...



  

  Thank you again!
  
  
  Best wishes,
  Tom



  On Mon, Jun 20, 2022 at 3:52
PM Micha Silver 
wrote:
  
  

  Hi Tom:
  
  
  Will v.segment or v.lrs.segment help?
  
  
  https://grass.osgeo.org/grass82/manuals/v.segment.html
  
  https://grass.osgeo.org/grass82/manuals/v.lrs.segment.html
  
  
  You'll need a start point, and a text file with the
distances (along the line) for all additional river
miles.
  
  
  Cheers, Micha
  
   
  
  On 20/06/2022 20:07, Thomas Adams wrote:
  
  
Hi all,
  
  
  I'm trying to identify specific points on the
centerline of a river channel by "river mile" , that
is, points along a path at specified distances from
a starting point  — not at regular intervals. Any
suggestions how I might go about this?
  
  
  I'm using GRASS 8.x
  
  
  Much appreciated…
  
  
  Tom



  

  

  
  

  

  

  



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  -- 
Micha Silver
Ben Gurion Univ.
Sde Boker, Remote Sensing Lab
cell: +972-523-665918

  




-- 

  

  
Thomas E Adams, III
  207 Chowning Place
  Blacksburg, VA 24060
  tea...@gmail.com
(personal)
  t...@terrapredictions.org
(work)
  
  
  
  1 (513) 739-9512 (cell)
  
  

  

  

  

-- 
Micha Silver
Ben Gurion Univ.
Sde Boker, Remote Sensing Lab
cell: +972-523-665918
https://orcid.org/-0002-1128-1325
  

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Re: [GRASS-user] How can I locate points on a river?

[Thomas Adams]

Hi Micha!

Thank you for the suggestion — yes, I think so; I just started looking at
v.segment… the capability of GRASS continues to amaze me! Your help is much
appreciated!

BTW, on a separate note… did you get my email some time ago about revising
the "Flood Forecasting: a global perspective" book? Are you and your
colleague interested in making any additions or revisions to your book
chapter for the 2nd edition? Others reading this, who may be interested,
please contact me!

Thank you again!

Best wishes,
Tom

On Mon, Jun 20, 2022 at 3:52 PM Micha Silver  wrote:

> Hi Tom:
>
>
> Will v.segment or v.lrs.segment help?
>
>
> https://grass.osgeo.org/grass82/manuals/v.segment.html
>
> https://grass.osgeo.org/grass82/manuals/v.lrs.segment.html
>
>
> You'll need a start point, and a text file with the distances (along the
> line) for all additional river miles.
>
>
> Cheers, Micha
>
>
> On 20/06/2022 20:07, Thomas Adams wrote:
>
> Hi all,
>
> I'm trying to identify specific points on the centerline of a river
> channel by "river mile" , that is, points along a path at specified
> distances from a starting point  — not at regular intervals. Any
> suggestions how I might go about this?
>
> I'm using GRASS 8.x
>
> Much appreciated…
>
> Tom
>
>
>
> ___
> grass-user mailing 
> listgrass-user@lists.osgeo.orghttps://lists.osgeo.org/mailman/listinfo/grass-user
>
> --
> Micha Silver
> Ben Gurion Univ.
> Sde Boker, Remote Sensing Lab
> cell: +972-523-665918
>
>

-- 
Thomas E Adams, III
207 Chowning Place
Blacksburg, VA 24060
tea...@gmail.com (personal)
t...@terrapredictions.org (work)

1 (513) 739-9512 (cell)
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[GRASS-user] How can I locate points on a river?

[Helmut Kudrnovsky]

>I'm trying to identify specific points on the centerline of a river channel
>by "river mile" , that is, points along a path at specified distances from
>a starting point  — not at regular intervals. Any suggestions how I might
>go about this?

have a look at 

https://grass.osgeo.org/grass82/manuals/addons/v.fixed.segmentpoints.html

for inspiration to create an input file for v.segment.

kind regards
Helmut


OSGeo charter member
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