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Attackpoint - performance and training tools for orienteering athletes

Discussion: the mostly-ISOM map of San Francisco, and course

in: Golden Gate Escape II (Jul 14, 2012 - San Francisco, CA, US)

Jul 16, 2012 3:31 PM # 
Backstreet Boy:
The 5 foot contours are overkill, and will be halved at least for the next edition of the map. It will also be expanded. The northeast part has most of the traditional San Francisco tourist neighborhoods and destinations.

Jul 16, 2012 4:03 PM # 
Jul 16, 2012 6:54 PM # 
Hi Rex -- Can you elaborate on how you got the contours into OCAD? (Are you using OCAD?) I've stalled on a side-project where I was trying to get GeoPDF data into OCAD...

I like your simplified legend.
Jul 16, 2012 9:20 PM # 
They were really hard to see against the olive-green, and the precision was unnecessary given that most of that was covered by buildings. Increasing the contour interval will make it a lot clearer.

Discussing it with some other people, there was some confusion about the roads with black lines running down them. I didn't have trouble, but I'm familiar with the area.

I was wishing I'd had my thumb compass with the magnifier; I missed some stairways at Fort Mason and Ghirardelli Square. (controls J and N) That's not a criticism; I use it regularly.

It was a lot of fun to run on this map. Thanks, Rex!
Jul 17, 2012 12:01 AM # 
Backstreet Boy:
Tundra/Desert has the system down for converting datasets to vector contours. I did not render the contours, I just made them fit the map. I can send you the instructions he generated (50 steps or so) when I get on my laptop at the hotel.
Jul 17, 2012 1:24 AM # 
That would be great, if T/D doesn't mind!
Jul 19, 2012 4:53 AM # 
If you need me quickly, it's best to email, since I'm currently prone to week+/− work breaks. Rex's 50-step instructions refer to getting contours from a USGS (or another) Digital Elevation Model via tntMIPS; if you already have vector contours, these instructions won't work.

Great map, Rex—sorry I couldn't be there, see work break.

The contours for this map (as well as for Get Lost!!'s 1:25k rogaining maps of San Francisco) are already rendered as contours by the City. We the public don't appear to have access to the underlying DEM, or else I'd have generated a contour interval that's more appropriate. I did delete all but every 4th contour for the Mission Street Scramble. The resulting output looks a bit funny, with many jags, but is usable.
Jul 19, 2012 6:50 AM # 
Thanks, Rex emailed me the 50-step process yesterday. I hope to give it a try this weekend...

This discussion thread is closed.