On Tue, 9 Mar 2010, Wolf Bergenheim wrote:
Now you are mixing with the format for v.in.ascii. The v.net.path fomat is:
id start_point_x start_point_y end_point_x end_point_y
Wolf,
Yes, this did help. Had I just replaced the string with a number the first
time I'd have calculated the proper
Rich Shepard wrote:
> On Mon, 8 Mar 2010, Wolf Bergenheim wrote:
>
> > The 'id' should not be the string 'id', but rather a unique IDentifier
> > for each point. Usually you will want to use a running number, so that
> > the first is 1 the second is 2 etc...
> > Here is an example of 2 lines:
>
On Mon, Mar 8, 2010 at 19:07, Rich Shepard wrote:
> Wolf,
>
> What you show above is the same two points on both lines. I changed the
> file 'nodes' to read:
>
> 1|242856.60|431305.07
> 2|242551.88|432149.70
Hi Rich,
Now you are mixing with the format for v.in.ascii. The v.net.path fomat is:
id
On Mon, 8 Mar 2010, Wolf Bergenheim wrote:
The 'id' should not be the string 'id', but rather a unique IDentifier
for each point. Usually you will want to use a running number, so that
the first is 1 the second is 2 etc...
Here is an example of 2 lines:
1 242856.60 431305.07 242551.88 432149.70
On Mon, 8 Mar 2010, Wolf Bergenheim wrote:
The 'id' should not be the string 'id', but rather a unique IDentifier
for each point. Usually you will want to use a running number, so that
the first is 1 the second is 2 etc...
Here is an example of 2 lines:
1 242856.60 431305.07 242551.88 432149.70
On Sun, Feb 28, 2010 at 02:09, Rich Shepard wrote:
> On Sat, 27 Feb 2010, Rich Shepard wrote:
>
>> 242856.60 431305.07 242551.88 432149.70
>
> Oops! I forgot the 'id' at the beginning of the line.
>
> So, after adding that I get a new warning:
>
> WARNING: Wrong input format: id 242856.60 431305
Rich Shepard pisze:
I have a vector map of a stream network and want to find the distance
between two points on the main stem. I have the geographic coordinates of
each point on the line representing the stream. I tried v.what but I'm
not
comfortable that gave me the correct answer.
The li
On Sat, 27 Feb 2010, Rich Shepard wrote:
242856.60 431305.07 242551.88 432149.70
Oops! I forgot the 'id' at the beginning of the line.
So, after adding that I get a new warning:
WARNING: Wrong input format: id 242856.60 431305.07 242551.88 432149.70
WARNING: [1] input format errors
Th
On Sat, 27 Feb 2010, Dylan Beaudette wrote:
Try the v.net.* modules.
Dylan,
I must be missing something. I put the e/n coordinates for the
upstream/downstream points along the stream into a file called 'nodes'. Than
I ran:
GRASS 6.4.0svn (oregonM):/usr4/grassbase > v.net.path --o in=aberne
Hi Richard,
Try the v.net.* modules.
Cheers,
Dylan
On Sat, Feb 27, 2010 at 11:09 AM, Rich Shepard wrote:
> I have a vector map of a stream network and want to find the distance
> between two points on the main stem. I have the geographic coordinates of
> each point on the line representing the
I have a vector map of a stream network and want to find the distance
between two points on the main stem. I have the geographic coordinates of
each point on the line representing the stream. I tried v.what but I'm not
comfortable that gave me the correct answer.
The line between the two poin
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