2023-02-22 | 2023-02-23 | 2023-02-24

2023-02-23

Liverpool

Previously... Oasis.2023-02-22#Liverpool

Today, in Liverpool, I have much fewer errors - let's address them.

I'll start by revisiting the unusual 'Node is inside 2 WATER polygons' issue:

1. What's the issue?

   ...
   OasisOSM.py                015911 ERROR: Node[25583] is inside 2 WATER polygons (0 or 1 expected)
   ...
   

   • This is stopping OSM-MeshJSON in its tracks, which is causing the AS30 creation to fail. What's the problem, then? To know this, we must first find the problem.
2. Where's the issue?
   • Below is our entry for the node in our aptly-named .node file for this AS30:

     ...
     25583    -269.34772210544907  -179.90359520353377    0
     ...
     

   • These coordinates are in Earth-North-Up - we need them in Decimal Degrees. Let's convert:

                                 # The python file                                  # The function   # ENU-X               # ENU-Y                # ENU-Z   # AS30 Lat DD   # AS30 Lon DD
     lhc@S23:~$ sudo -u www-data /var/www/html/Oasis/Code/python/OasisM30Utility.py ENUtoDD          -269.34772210544907   -179.90359520353377    0         53.4375         -2.9625000000000004
     
     OasisM30Utility.py         010894 Verbose1: 2023-02-23 10:17:16.431464
     OasisM30Utility.py         010895 Verbose1: uid  = 33
     OasisM30Utility.py         010896 Verbose1: euid = 33
     <6>011011 Info: ddLat=53.43588346649576 ddLon=-2.9665528326263026
     <6>011013 Info: DMS =  53° 26'  9.18" N   2° 57' 59.59" W
     <6>011014 Info: DMS = 53 26 09 N 002 57 59 W
     OasisM30Utility.py         011105 Verbose1: OK (Exit=0)
     

   • Alright - that tells us where we are. Which is?
     
     Here.
   • The issue (I think) is that this is a relation, and both the relation way and it's outer are tagged as water. I've removed the water tag from the outer - let's see how this goes now.

That was it! With that issue sorted, I've cleaned the three Tiles and the Site. Now, to get in there and have a gander.

Unfortunately, it's taken intil 16:40 to get to this point. One machine tried to laod the level for 4 hours before I decided to kill it - I'm calling this the Paris Problem. Your 7.5km radius might be good for Barlow, but not for a densely-mapepd city, like Paris (or Liverpool, in this case). One of our more powerful ones did manage, though, so here's some nice screenshots:

Whilst on that powerful machine, I emptied the Site's MeshesENU - any machine should be able to open it now, which means any machine can do the clean I've just issued after reducing the radii'.