I've now updated oceantiles_12.png with inland lake data for all of western Canada. The lake detection seems perfect -- I've been re-rendering lakes Winnipeg, Manitoba, Winnipegosis, Dauphin, and That-Other-One-I-Can't-Remember-The-Name-Of, and they look much better now that the holes are filled in. The islands don't render inside-out any more either. I also fixed one bad piece of coastline. I'm still waiting on svn access so that I can get the updated oceantiles data and my laketracer script checked in.

Tonight, in my continued quest to make my computer do the mapping for me, I wrote a tool to use Landsat imagery to detect land and sea tiles, and automatically update oceantiles_12.png. This is important, because errors in the ocean tiles list are causing some islands to render as lakes in t@h.

Now, I just need to get svn access myself, or give the modified oceantiles.dat to someone who can commit it.

Hey, I finally found the diary thing here! Maybe I'll start using this instead of tracking progress on my user wiki page...

After a few weeks' absence, I'm back, and working on large-scale stuff (lakes provincial highways) instead of urban street mapping. Back in June, I wrote a little tool to trace lakes from Landsat data which does a great job, and tonight I used data it generated to correct morwen's coastline import of Lake Manitoba and my earlier hand-tracing of Lake Winnipeg. It was way, way better than my hand trace, and mostly-but-not-always better than the coastline import, so I'm pretty pleased. I'll have to try to get svn access so I can get this tool in there for other people to play with.