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List:       grass-user
Subject:    [GRASS-user] Identify lines by starting point?
From:       Rainer M Krug <r.m.krug () gmail ! com>
Date:       2011-06-29 11:21:56
Message-ID: BANLkTin0Epu6qv6qXr198f48rYpfO0gH19GH5PoZVE6Rt3o65w () mail ! gmail ! com
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Hi

I have created flowpaths for a grid, and have to do some analysis per grid
cell, i.e. per flowline.

Is there a way of identifying a line by its starting point?
I would like to provide the cell / centre of a cell and get the flowline
from this point? I know I could create them separately, but this calculation
is part of a simulation which is repeated several thousand times, and the
grid is quite big, wherefore the individual storage of the flowlines is not
an option here.

Thanks,

Rainer

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology,
UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

Tel :       +33 - (0)9 53 10 27 44
Cell:       +33 - (0)6 85 62 59 98
Fax (F):       +33 - (0)9 58 10 27 44

Fax (D):    +49 - (0)3 21 21 25 22 44

email:      Rainer@krugs.de

Skype:      RMkrug

[Attachment #5 (text/html)]

Hi<div><br></div><div>I have created flowpaths for a grid, and have to do some \
analysis per grid cell, i.e. per flowline. </div><div><br></div><div>Is there a way \
of identifying a line by its starting point?</div><div>I would like to provide the \
cell / centre of a cell and get the flowline from this point? I know I could create \
them separately, but this calculation is part of a simulation which is repeated \
several thousand times, and the grid is quite big, wherefore the individual storage \
of the flowlines is not an option here.</div> \
<div><br></div><div>Thanks,</div><div><br></div><div>Rainer<br clear="all"><br>-- \
<br>Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), \
Dipl. Phys. (Germany)<br><br>Centre of Excellence for Invasion Biology<br> \
Stellenbosch University<br>South Africa<br><br>Tel :       +33 - (0)9 53 10 27 \
44<br>Cell:       +33 - (0)6 85 62 59 98<br>Fax (F):       +33 - (0)9 58 10 27 \
44<br><br>Fax (D):    +49 - (0)3 21 21 25 22 44<br><br>email:      <a \
href="mailto:Rainer@krugs.de" target="_blank">Rainer@krugs.de</a><br> <br>Skype:      \
RMkrug<br><br> </div>



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