To be fair, the "consistent" error in question was only one track. I assumed that all the tracks in the region were consistently skewed in relation to Yahoo.
I'm a lone mapper (at least I was the last time I checked) I don't have a dozen other people criss-crossing my region that I can use to estimate my GPS's drift - I have to trust my GPS over the images because those are the only two data sets I have available to me. For you guys doing detail work in well tracked areas, it may be a different story. But for those of us who are laying down the initial tracks on a completely blank canvas, we don't have the option of trusting outside imagery over our own data. "Maps are not meant to be precision lookup thingies, they are meant to be big overviews, as good as possible." Boy is THAT true. I use a 3 year old maps on my PocketPC version of TomTom - the maps for virtually every housing allotment built in the past 15 years is skewed to the point that automatic navigation is completely impossible. But, if I view the maps directly, the streets appear OK relative to eachother: Turn left into the allotment, turn right on HomeOwner Lane, and another right on Colorful-Imagery Way. _______________________________________________ newbies mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/newbies
