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Re: Following a ridgeline [message #60863 is a reply to message #60862]

Wed, 18 June 2008 11:02

Jelle
Messages: 19
Registered: May 2008

Junior Member

On Jun 18, 5:14 pm, Juggernaut <juggernau...@gmail.com> wrote:
> As far as I can tell it seems that a ridge is normally if not always
> the tallest point in its local environment. If you scan the image on
> a going from the top row to the bottom row and get the maximum value
> in that row and report that back and then do the same from the first
> column to the last column and report those values back you have a
> decent outline of the ridge (meaning haven't tried it). It would be
> even more robust if you went through the image on 45 degree diagonals
> as well and report those back so that completely horizontal. Seems
> like it would work to me.

problem is of course.. the ridge in general is the tallest ponts in
the local area. Except for trenches and local dips :). Tha is why I
suggested looking at mean levels a bit further away. hm.. getting to
the point that a piece of paper and a pencil come out :)

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[Message index]

		Re: Following a ridgeline By: Jelle on Wed, 18 June 2008 11:10
		Re: Following a ridgeline By: Jelle on Wed, 18 June 2008 11:02
		Re: Following a ridgeline By: Juggernaut on Wed, 18 June 2008 09:14
		Re: Following a ridgeline By: Jean H. on Wed, 18 June 2008 08:55
		Re: Following a ridgeline By: Jelle on Wed, 18 June 2008 01:52
		Re: Following a ridgeline By: Jean H. on Tue, 17 June 2008 10:14
		Re: Following a ridgeline By: RJA on Tue, 17 June 2008 02:20
		Re: Following a ridgeline By: Peter Clinch on Tue, 17 June 2008 02:01
		Re: Following a ridgeline By: Jelle on Mon, 16 June 2008 16:14
		Re: Following a ridgeline By: Kenneth P. Bowman on Mon, 16 June 2008 12:37
		Re: Following a ridgeline By: mzagursk@gmail.com on Mon, 16 June 2008 13:34
		Re: Following a ridgeline By: karo03de on Mon, 23 June 2008 00:50
		Re: Following a ridgeline By: mzagursk@gmail.com on Mon, 16 June 2008 13:15
		Re: Following a ridgeline By: David Fanning on Mon, 16 June 2008 12:49
		Re: Following a ridgeline By: Mike[2] on Tue, 24 June 2008 08:53

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