[OpenDroneMap-users] Newbie questions about WebODM

[Piero Toffanin]

Hi Thomas,

Welcome! All good questions, let's see if I can help answer some of them:

1. Assuming you're on Linux, if you've launched WebODM via ./webodm.sh 
start, WebODM should already be accessible from your LAN. Although 
WebODM listens to the 0.0.0.0 interface, docker should make the service 
available to the outside world, see 
https://github.com/OpenDroneMap/WebODM/blob/master/docker-compose.yml#L24.

2. This is a temporary change we've decided to make (limit the default # 
of threads to 1) because one of ODM's components has a fault that leads 
to the process stalling. 
https://github.com/OpenDroneMap/OpenDroneMap/pull/579. We have plans to 
fix it, in the meanwhile people can manually increase the 
--opensfm-processes parameter to a higher value.

3. If there were no Tasks in the project, I would expect that to be the 
case. Once there's a completed task in the project, the map should 
automatically zoom to the union of all Tasks' extents. We could probably 
improve the default view in the case where there are no Tasks. Could you 
open a enhancement request in the WebODM repo for this?

4. This sounds like a fault on our end. I'm not sure why that happened, 
but it's quite possible that the processing loop got stuck somehow. If 
that happens again, please let us know if there's a way to reproduce it. 
A way to "unstuck" the processing loop is to restart the gunicorn/nginx 
process from docker (note, not by using ./webodm.sh stop, that will 
destroy the node-odm-1 container, which also contains your processing 
results). Find the container hash for the webodm_webapp container, then 
enter a bash shell, kill gunicorn/nginx processes and restart them 
(https://github.com/OpenDroneMap/WebODM/blob/master/start.sh#L82)

Cheers!

-Piero

On 06/05/2017 05:42 PM, Thomas Wunder wrote:
> Hi,
> I just came accross OpenDroneMap and WebODM and I've downloaded, installed and
> tried both of them (just following two video tutorials on youtube). To me it
> seems, I'd be best served if I use WebODM for convenience even though I'm
> really into linux console pretty much. Maybe I just haven't found the
> documentation that answers all my questions (please point me there if it
> exists):
>
> 1. WebODM is listening on the loopback interface (localhost:8000). How do I
> tell it or docker to listen on one (or all) of the machine's physical network
> interfaces to make WebODM accessible from my LAN?
>
> 2. On a fresh install of WebODM there's only one processing node configured. My
> virtual machine however is equipped with 24 processor cores and the majority
> of them is idling while just one is at 100% when running a WebODM task. How do
> I add further processing nodes to fully use the VMs processing power?
>
> 3. Looking at the example project (sorry I already deleted it) I tried to open
> a map using that "View Map" button but just found a cut open globe view.
> Seemingly there's no processing output overlayed to it or at least it's not
> being zoomed into.
>
> 4. I tried to process my own drone imagery, consisting of 91 single images
> (1cm/px). First thing I noticed was that my images were obviously scaled to a
> lower resolution of 1350x2400 compared to 3472x3071 they had originally, even
> though I added the option "orthophoto-resolution: 100. Why is that?
> Then after an hour or so processing finished saying
> "conversion finished 1,623,710 points were processed and 1,623,710 points (
> 100% ) were written to the output.
> duration: 19.469s
> Postprocessing: done
> Compressing all.zip"
> but the web frontend obviously didn't realize the task was already finished as
> the status stayed something like "Running" for almost a day until I hit the
> cancel button. It's saying "Cancelling..." since.
> How do I narrow down such a problem? Do you have an idea what could be going
> wrong there?
>
> Thanks a million in advance!
> Best
>   Thomas
>
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