Rich Shepard pisze:
On Wed, 10 Feb 2010, Jarek Jasiewicz wrote:
http://grass.osgeo.org/wiki/R.stream.*
Jarek,
Will r.stream.stats calculate the basin area for the two
sub-catchments?
I see the input parameters as the raster maps for streams, flow
direction,
and DEM. Doesn't seem to calc
On 02/11/2010 12:23 AM, Rich Shepard wrote:
On Wed, 10 Feb 2010, Micha Silver wrote:
r.to.vect -s house_catchment out=house_catchment feature=area
Micha,
This process worked flawlessly ... once I corrected slightly off
coordinates for the dam point. The last step I need is a way to calcula
On Wed, 10 Feb 2010, Rich Shepard wrote:
Isn't there a way to calculate areas of the vectors produced by the
r.water.outlet-to-vector process?
Of course there is, silly me: v.report. Works like a charm.
Rich
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On Wed, 10 Feb 2010, Micha Silver wrote:
r.to.vect -s house_catchment out=house_catchment feature=area
Micha,
This process worked flawlessly ... once I corrected slightly off
coordinates for the dam point. The last step I need is a way to calculate
the areas of these two partial basins. The
On Wed, 10 Feb 2010, Jarek Jasiewicz wrote:
http://grass.osgeo.org/wiki/R.stream.*
Jarek,
Will r.stream.stats calculate the basin area for the two sub-catchments?
I see the input parameters as the raster maps for streams, flow direction,
and DEM. Doesn't seem to calculate the areas of the t
Rich Shepard pisze:
On Wed, 10 Feb 2010, Jarek Jasiewicz wrote:
try to use r.stram.basins from add ons it has solevd thsese prooblems
Ah! Will do. Thanks, Jarek.
Rich
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On Wed, 10 Feb 2010, Jarek Jasiewicz wrote:
try to use r.stram.basins from add ons it has solevd thsese prooblems
Ah! Will do. Thanks, Jarek.
Rich
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Rich Shepard pisze:
On Wed, 10 Feb 2010, Micha Silver wrote:
r.null house_catchment setnull=0
and
r.to.vect -s house_catchment out=house_catchment feature=area
Micha,
I have the coordinates correct now. When I get the house_catchment
map I
want the area encluded. Haven't found how to cal
On Wed, 10 Feb 2010, Micha Silver wrote:
r.null house_catchment setnull=0
and
r.to.vect -s house_catchment out=house_catchment feature=area
Micha,
I have the coordinates correct now. When I get the house_catchment map I
want the area encluded. Haven't found how to calculate that; v.build?
Rich Shepard wrote:
On Wed, 10 Feb 2010, Micha Silver wrote:
A quick tip regarding r.water.outlet (you may have noticed this already)
The module creates a new raster covering the whole analysis region with
two possible values: 1 for all cells draining into the outlet, and 0
everywhere else. If
The easiest way that I have found to snap a point to a stream is to
use Qgis to edit the vector.
hth,
Stephen
On Wed, Feb 10, 2010 at 2:04 PM, Rich Shepard wrote:
> On Wed, 10 Feb 2010, Daniel Victoria wrote:
>
>> Looking at the PNG it does not look like any of the pour points are on the
>> chan
On Wed, 10 Feb 2010, Daniel Victoria wrote:
Looking at the PNG it does not look like any of the pour points are on the
channel. It has to be exactly on top of the lines in the flowacc map. By
setting the pour point to the right place you can delineate the drainage
area for each of them and see h
agreed- the lower point does not look like it is on the stream.
On Wed, Feb 10, 2010 at 1:56 PM, Daniel Victoria
wrote:
> Looking at the PNG it does not look like any of the pour points are on
> the channel. It has to be exactly on top of the lines in the flowacc
> map. By setting the pour point
Looking at the PNG it does not look like any of the pour points are on
the channel. It has to be exactly on top of the lines in the flowacc
map. By setting the pour point to the right place you can delineate
the drainage area for each of them and see how much came from the
reservoir.
On Wed, Feb 1
On Wed, 10 Feb 2010, Daniel Victoria wrote:
In order for a basin to be delineated correctly, the pour point has to
be in a high accumulation area (I once heard the expression synthetic
river...)
Daniel,
Perhaps if I explain what I'm trying to do it will help everyone who's
assisting me.
In order for a basin to be delineated correctly, the pour point has to
be in a high accumulation area (I once heard the expression synthetic
river...)
Well, put your pour point on top of the accumulation map and see if
it's on top of the river. If not, change your easting and northing
coordinates
On Wed, 10 Feb 2010, Micha Silver wrote:
A quick tip regarding r.water.outlet (you may have noticed this already)
The module creates a new raster covering the whole analysis region with
two possible values: 1 for all cells draining into the outlet, and 0
everywhere else. If you do r.to.vect stra
On 02/10/2010 12:32 AM, Rich Shepard wrote:
On Tue, 9 Feb 2010, Rich Shepard wrote:
I want to limit my analyses to that portion of the basin that drains
into
a specified location along the main creek. Which module will allow me to
define a partial basin with this point as the outlet?
Got it.
On Tue, 9 Feb 2010, Rich Shepard wrote:
I want to limit my analyses to that portion of the basin that drains into
a specified location along the main creek. Which module will allow me to
define a partial basin with this point as the outlet?
Got it. r.water.outlet, after running r.watershed.
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