Tom, VERIFY, VERIFY, VERIFY.
I looked at the CalTopo maps for my area (FN24BI) and they are all at least FIFTY (50) PLUS years out of date. Street/Road names being way off and total lack of some development is very noticeable. 73 Dave KB3EFS On 12/12/2012 05:35 PM, Tom Hayward wrote: > On Mon, Dec 10, 2012 at 11:18 AM, Tom Hayward <[email protected]> wrote: >> On Mon, Dec 10, 2012 at 9:22 AM, Fred Hillhouse <[email protected]> >> wrote: >>> There are other "slippy tile" maps available. I use a series from ArcGIS >>> that is basically the same as the USGS topographic maps. CalTopo also has >>> a >>> few useful tiles as well. >> >> I have created .geo files for using CalTopo tiles in Xastir. They work fine, >> but the OSM license is still in the corner (I think Xastir's code puts this >> over all tiles). >> >> Speaking of licenses, please make sure you are using the CalTopo tiles >> appropriately. Matt puts a lot of time and money into creating and serving >> those. He charges a license fee for use outside of caltopo.com. > I have asked Matt for clarification of the usage agreement for CalTopo > tiles. Here's what he said: > > On Wed, Dec 12, 2012 at 10:29 AM, Matt Jacobs <[email protected]> wrote: >> For users adding things as a one-off, I don't need anything special. For >> them to be included as the default, I need: >> >> * Some form of attribution. >> >> * A sensible user-agent (for apps) or referring URL (for websites) when >> fetching tiles. I turn on logging a couple days a month - too expensive to >> do it constantly - and have scripts that compute bandwidth by user-agent, >> referrer, etc. >> >> * For web sites, a point of contact so that I can occasionally send out >> URL updates. I tell browsers to cache the tiles for a long time, so if I >> make intrusive changes I'll update a dummy parameter (currently v=1) to >> invalidate existing caches. Having everyone in sync on this helps my >> bandwidth and gives a better user experience. >> >> * For apps, it should be hard for users to prefetch bazillions of tiles >> unless the developer wants to pay me. > I'm going to work on adding CalTopo tiles to Xastir. They work as-is > with the OSM code, but they are attributed to OSM :-) I'm planning to > rewrite some of the OSM code so that we can specify an attribution in > the .geo file, and also ensure that Xastir is sending an appropriate > user-agent and that Matt has that user-agent on file. > > Tom KD7LXL > _______________________________________________ > Xastir mailing list > [email protected] > http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir > > -- David A Aitcheson [email protected] Go Green! Print this email only when necessary. _______________________________________________ Xastir mailing list [email protected] http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
