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Discussion: oomap enhancements - feedback sought

in: Orienteering; General

Mar 17, 2021 8:48 PM # 
We extensively use Ollie O'Brien's OpenOrienteeringMap (oomap) website for informal urban events: It's already a fantastic resource and I've been working, with Ollie's knowledge, to add my own improvements. The main ones are:

Global contours (from SRTM - so a bit ropey but better than nothing)
LIDAR-derived contours at 2.5m, 5m or 10m (most of England & Wales, some major population centres in Australia and NZ so far).
Up-to-the-minute mapping data.
Magnetic North grids and map alignment. Also arbitrary rotation (Alt+Shift+Drag)

Downsides: No pre-rendering of O-style maps - only on the PDF and image export. Things take a bit longer as the map data is fetched on the fly. Adding SRTM contours adds a minute or so as the data is only downloaded when needed.

I'm now seeking feedback to see how valuable these additions are. So - please give it a try at the site below. Be aware that this is an ancient PC running off my broadband connection so don't hit it too hard! If feedback is positive I'll work with Ollie to integrate this code into his site.

Mar 20, 2021 3:59 PM # 
JPG, JGW and KMZ exports were broken - now fixed.
Also LIDAR contours added for Perth, WA
Mar 26, 2021 3:28 PM # 
I can't take advantage of the LIDAR (due to location) but really happy with the addition of global SRTM contours. As you note, it is not perfect, but great to have the option to include them. Hopefully you are getting more positive feed back so this can be implemented into the main site.

Mar 27, 2021 12:18 PM # 
Thanks Michael. Not a huge amount of feedback so far...

Ottawa (I'm assuming) - have a look now! I've processed a chunk of data from:

Similarly, if there are areas where better contours would get used and you can point me at a suitable digital elevation model I can see what's possible. E.g. Austria is there now - there are *lots* of contours there!
Mar 28, 2021 1:13 PM # 
Hi David, the added LIDAR data looks great. I don't know why the limited feedback. I know in my club we have a number of very qualified mappers and the club has OCAD licenses (and they also know how to suck in LIDAR etc) so OOmap is not used a lot, although our outreach group does use it for quick events for schools etc. I've definitely seen other Canadian clubs using OOmap, especially for MapRun style events.
The few times I have used it has been as a base template in OOM (the application) and then with Purple Pen. Having the contours on the base is very handy (even if just being used to then draw over).
It would be good to add to the local area North in Quebec (the current ontario set you have "die" just across the provincial border). I'll see if I can track down a source.

Thanks for your effort with this.
Apr 10, 2021 7:00 PM # 
I've now added an alternative to the NASA SRTM-derived contour set. This is from the recently-released GLO-30 elevation model from ESA's Copernicus project. Advantages over SRTM: global coverage where SRTM stops at ~ 60 deg N/S, more recent data, and looks to be a bit higher quality. Background at:
Apr 12, 2021 8:25 PM # 
Looks really nice David. Thanks!

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