[Talk-ca] CanVec import troubles

Tyler Gunn tyler at egunn.com
Sat Sep 25 21:31:08 BST 2010


> Firstly, in response to what Daniel was saying, I took a closer look at that trail, It appears it is actually a winter road. But since the lake coastline data is a real lake, why would I delete it, would the CanVec data replace it? Also why is only one of the sub tiles forested on the map?

The Canvec data is going to be a LOT more accurate than the existing lake coastline data; it was all generally traced from low resolution satellite imagery.   So I'd definitely stick with the Canvec stuff.

I'm not 100% sure what happened with the Canvec data you uploaded, but it looks like the tags are missing from lot of the ways.  The wooded areas are not showing up because they're not marked natural=wood, and the watered areas are not showing up water because they're not marked natural = water.  I'd suggest downloading some of the areas in JOSM and comparing that to the original canvec tiles you were working with to see what went wrong.  If you need help I can download the same tile and take a closer look, but that's what I saw when I downloaded with JOSM.


> Also Tyler, where are you getting the find building data from MLI? I couldn't find it on their website, unless your tracing it from their Ariel imagery.


The MLI buildings were downloaded from https://mli2.gov.mb.ca/t20k/index_seamless.html.
I have converted this data into a format that we can use with OSM.
I've converted the entire province and have been copying in the buildings as I import Canvec tiles.  If there's an area you are interested in let me know and I can clip it out of my buildings import file (which is 200MB for the whole file -- you can see why I haven't posted this :) ).  The primary reason I haven't cut the data up into small tiles and posted it is that I'm slowly clipping areas out of the big import file as I work; this way I can always know what is left to import without having to manually look at the map and see what's there and what isn't.  If there's some areas others want to handle then I'm more than willing to snip 'em out.  The building data seems pretty decent though.



Thanks,
Tyler

--
Tyler Gunn
tyler at egunn.com
http://www.egunn.com/






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