[Qgis-user] Least Cost Path

[krishna Ayyala]

Chris,
Its nothing to do with the number of points. I got the same error when I
ran with 160 points.I also went to the study manual of v.net.salesman. The
network and points are as per their guidelines.
[image: image.png]

On Tue, Feb 4, 2025 at 1:08 PM chris hermansen <clhermansen at gmail.com>
wrote:

> Krishna and list,
>
> On Tue, Feb 4, 2025 at 11:49 AM krishna Ayyala <ayyalakrishna at gmail.com>
> wrote:
>
>> I also ran v.clean on the network. Then ran v.net.salesman on the cleaned
>> network. That did not help. Getting the same error message. Is there a fix
>> for this? I wish to run  v.net.salesman without any errors.
>>
>> On Tue, Feb 4, 2025 at 12:15 PM krishna Ayyala <ayyalakrishna at gmail.com>
>> wrote:
>>
>>> Chris,
>>> Again thanks for your reply. I am not sure if my network is proper. I
>>> downloaded this from an online data source. How to fix it, if there are any
>>> errors? Are there any tools in qgis to fix this?
>>>
>>> Regards.
>>>
>>> On Tue, Feb 4, 2025 at 12:12 PM chris hermansen <clhermansen at gmail.com>
>>> wrote:
>>>
>>>> Krishna and list,
>>>>
>>>> On Tue, Feb 4, 2025, 10:49 krishna Ayyala <ayyalakrishna at gmail.com>
>>>> wrote:
>>>>
>>>>> Chris,
>>>>> Alternatively, I ran v.net.salesman. Even that is giving following
>>>>> error.
>>>>>
>>>>> [image: image.png]
>>>>>
>>>>> [image: image.png]
>>>>>
>>>>>
> Look at the message - Number of cities: 0 / ERROR: Not enough cities (< 2)
>
> This tells you that your data is not properly set up.
>
> Study the manual page for v.net.salesman here:
> https://grass.osgeo.org/grass-stable/manuals/v.net.salesman.html
>
> There is a sample of v.net.salesman usage there which explains clearly how
> to set things up.  Note creation of cities to visit and use of v.net to
> create the network prior to running v.net.salesman.
>
>
> --
> Chris Hermansen · clhermansen "at" gmail "dot" com
>
> C'est ma façon de parler.
>
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