Re: [OSM-talk] lists and # of subscribers
Hi, On Fri, Sep 04, 2009 at 06:11:27PM -0400, Richard Weait wrote: > I often find myself wondering how many are subscribed to the various > osm lists. Out of interest, as a snapshot just now: 1146 on talk 719 on dev 258 on talk-gb Cheers, -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Mapping canals
On Tue, Jan 22, 2008 at 02:25:57PM +, Gervase Markham wrote: > Any GPS can distinguish two points 70ft apart, can't they? With up to about a 20m error (which in practice seems to be about right), you might be out by ~65ft. (Granted, both points are likely to be out by the same amount if taken at the same time, but it's still a bit close IMO.) Cheers, -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] Mapping canals
On Tue, Jan 22, 2008 at 09:44:32PM +, Stephen Gower wrote: > > (amenity=pumpout;water_point), and to come up with a separate tag for > > what we refer to as "Elsan disposal" (a drain where you can empty your > > Porta-Potti!). amenity=poo_hole could be misconstrued. > > That reminds me of something else I meant to add, which you've > partically gone into here - nto all "sanitary_stations" are equal. > You've mentioned some difference, but even with pumpout there's the > question of if it's self-operated or not. amenity=sanitary_station shovel=provide_your_own -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] Bridges / viaducts for railways
On Mon, Jan 28, 2008 at 05:57:24PM +, Tom Chance wrote: > I'm a bit confused about these tags: > > railway=viaduct > bridge=yes > cutting=yes > embankment=yes > > Why is it not a property like bridge, cutting etc. and will it render > correctly? Should it be changed to viaduct=yes? Ewww, yuck... boolean flags. Personally I would tag as: railway=rail bridge=viaduct for cutting I would have thought more like (this is a suggestion, there is probably a better way): railway_level=-1 or railway_level=cutting and for embankment railway_level=1 or railway_level=embankment Map features has the really odd (IMO): railway=viaduct (node) highway=viaduct (node) with the comment of something like "A high or long bridge...". "long" and "node" don't go together as far as I am concerned ;-). You also don't know what type of railway goes over the viaduct, as you lose the railway= information. A possible, but slightly odd, example would be an underground train going above ground and over a viaduct - it would be railway=subway, bridge=viaduct. If memory is correct, I think the DLR does that in some places in London (railway=light_rail, bridge=viaduct)? Not sure what others do, though... Cheers, -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] "Crudely-drawn pint glasses"
Hey ho, On Tue, Jan 29, 2008 at 09:21:08PM +, Gervase Markham wrote: > As always, forgive me if this is an old issue, but: I noticed that an > organisation I have contact with has a map in their "how to get here" > leaflet, which they may well have just copied from somewhere. I'd like > to recommend they use an OSM map instead, but looking at the area: > http://www.openstreetmap.org/?lat=51.45561&lon=-0.96828&zoom=16&layers=B0FT > I find that the area they would screenshot is covered with crudely-drawn > pint glasses.[0] > Asking them to install and configure their own copy of Mapnik seems > somewhat unreasonable... You could try osmps, and then convert the PostScript to the required format. It has the added advantage, IMHO, that the pint glass is much nicer ;-). It's not as polished as Mapnik though, but easier to print. The styles need more work. http://dl.newtoncomputing.co.uk/readingex.pdf http://svn.openstreetmap.org/applications/rendering/osmps The latest osmps (still on my computer) does better things with bounding boxes so the output from the SVN one needs a bit of cropping to get right. -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] Bridges / viaducts for railways
Hi, On Mon, Jan 28, 2008 at 07:16:25PM -, Andy Robinson (blackadder) wrote: > >> Why is it not a property like bridge, cutting etc. and > >> will it render correctly? Should it be changed to > >> viaduct=yes? > > > >Ewww, yuck... boolean flags. > > > >Personally I would tag as: > > > > railway=rail > > bridge=viaduct > > > > bridge and viaduct are two separate types of structure so > strictly speaking bridge=viaduct is incorrect. They might be different to you as a civil engineer... to me a viaduct looks like lots of bridges next to each other (i.e. huh, what's the difference, really?) ;-) Actually, it's more of a thing I have about using on/off, yes/no, true/false type tags - they generally are not right in my opinion. For instance, take the same principle applied to roads highway=yes motorway=yes We use highway=motorway here - if nothing else it stops you doing the silly highway=yes motorway=yes secondary=yes Similarly, something can't be both a bridge and a viaduct. Therefore you want something like over=bridge or over=viaduct a) you reduce the keyspace, and b) you can't have bridge=yes viaduct=yes As usual in my case "over" is a bad name for a key. I guess that's why I stuck to the more generic "bridge" before, with "bridge=yes" being the general case. It's the same as saying bridge=suspension, rather than bridge=yes, suspension=yes (or even bridge_type=suspension - eugh). Maybe something like "transit=" would be better (in the sense of "how this way gets from A to B") and could then include tunnel, cutting, embankment, etc in the list of values as well as bridge and viaduct. Basically, I would say that every "object-type" key (i.e. not things like name=) should have as many non-coexistant values* as possible (if that makes sense), and that single flags (i.e. where a key only ever has one value) should be discouraged wherever possible. * i.e. you can't have both on the same "object", such as suspension and viaduct > We already use layer=+/-5 for setting display layering and > I always envisaged the same simple system could be used > for cuttings and embankments. Yes. I guess the issue here is that cuttings/embankments are usually drawn in on maps. Maybe it's a renderer problem. > I'd prefer to see railway=rail for all rail corridors and > a secondary tag for the type of service/stock used - ie > metrorail/subway/underground/freight etc etc etc Ditto to the above. railway=rail is basically the same as railway=yes if you say that. A railway can't be both subway and normal rail, so you therefore use railway=rail or railway=subway etc. If nothing else you know that it's some type or other of railway, without even having to look at the value (same for bridge, etc). Anyway, that's my computer science thinking - back to your civil engineer ideas... ;-) Cheers, -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] how can I print a atlas ?
On Wed, Jan 30, 2008 at 03:35:02PM +0100, Axel R. wrote: > I would like print the map (to ckeck IRL the streets...) > How can I do this easely ? osmps? http://svn.openstreetmap.org/applications/rendering/osmps Generates PostScript from a .osm file. Example code at the bottom will split the map up into "pages" if you want to produce a book, too (another reminder to self to checkin latest updates). -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] Move tagging RfCs/voting to extra list?
Hi, On Fri, Feb 15, 2008 at 01:08:33PM +, Nick Black wrote: > On Fri, Feb 15, 2008 at 1:03 PM, Frederik Ramm <[EMAIL PROTECTED]> wrote: > > > > You win, I did't know mailman had this feature. (Sounds to me like a > > positive selection though, i.e. you have to defined what you want, not > > what you don't want?) > > So this feature has to be enabled by the list admins, it seems. > > Matthew - can we enable this feature? Yeah, don't see why not. It'll cut some of the stuff out of my mailbox too ;-) I've played around with Mailman and worked out how to do the "negative selection" thing. It's not obvious - set up a topic that will never match anything, and then tick the "I also want to receive messages that do not match a topic". What topics would be useful? Is [tagging] in the Subject: header what's wanted just now? Cheers, -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [tagging] RFC open - new key - aqueduct=yes
Hi Gerv, On Sat, Feb 16, 2008 at 09:35:42AM +, Gervase Markham wrote: > Gervase Markham wrote: > > Currently, we have "waterway=aqueduct" on nodes only. It seems to me to > > make much more sense to treat aqueducts like bridges, with which they > > are closely analogous. So we should replace it with "aqueduct=yes", > > applicable to nodes or ways. > > > > http://wiki.openstreetmap.org/index.php/Proposed_features/Aqueduct > > The (limited) consensus on this page seems to be that we should abandon > aqueduct= and viaduct= and just use bridge= for everything. > > While it seems to me that this isn't current consensus or practice, it > isn't necessarily nuts; I've already proposed bridge_type, and someone > has said that it's easier to have alternative values for bridge, so > instead of bridge=yes, we have bridge=motorised_swing, etc. > http://wiki.openstreetmap.org/index.php/Proposed_features/Bridge_Type > > So why not bridge=viaduct, bridge=aqueduct? You might want to look at the discussion a few weeks ago: http://lists.openstreetmap.org/pipermail/talk/2008-January/022583.html Personally, I share your view about the bridge= tag, having a basic dislike for boolean values unless absolutely necessary. Someone suggested structure= - I quite like that (it also solves the "viaduct isn't a bridge" argument from Andy ;-) ). Cheers, -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] Woodland on a university campus (using layers to make areas render)
On Sun, Mar 16, 2008 at 02:44:21PM +, OJ W wrote: > Where an area of natural=wood is inside an area of amenity=university, the > woodland doesn't appear unless you put it at layer>0 > > http://informationfreeway.org/?lat=52.9356064080633&lon=-1.2017670228240827&zoom=17&layers=B000F000F > > however, that makes the roads 'underneath' the woodland disappear from the > map > > similarly with woodland inside a leisure=park > > http://www.openstreetmap.org/?lat=52.94495&lon=-1.21801&zoom=17&layers=0BFT > > any ideas? I'd suggest that this is an ordering bug in the renderer - the university area is a non-physical thing that just identifies the ground covered (mostly like landuse=residential, etc[1]). The woodland is a real physical thing, so should always be rendered to show in preference to the university area, IMO. Cheers, -- Matthew [1] The main difference being that the university land is probably all owned by the university, whereas the residential land is owned by different people. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] Easy way to export to Illustrator?
Hi, On Fri, Apr 04, 2008 at 09:30:20PM +0200, Axel von Matern wrote: > Is there a easy way to get my OSM data into Illustrator? Does Illustrator import PostScript? In which case you might be able to use osmps[1] (save from JOSM and then run osmps to create PostScript) - otherwise take the next step and run ps2pdf. HTH, -- Matthew [1] http://svn.openstreetmap.org/applications/rendering/osmps ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
[OSM-talk] NaviGPS problems (lockups) + reset solution
Hi all, Just for the record, for all those that have NaviGPS devices, or their derivative. I've got two of these, and had problems with both[0]. The second one I got locked up after a while of using a bad SD card. It froze hard and would not power off. It was under warranty, and Storage Depot kindly replaced it. The older one (it's getting on for a couple of years old now) started to go very slowly the other day. You'd press a button and it took 15 seconds or more to respond. It still powered off and on OK, though. Switched it on today, and it would not power off again. Nothing working, locked hard. I had imagined that the case would be welded, but thankfully it is screwed together. Therefore there is a real power switch...! Unscrew the 7 screws, breaking the "QC OK" seal under the flap. Lift off the top cover. Then you can unscrew one screw in the PCB and lift that off, too. Carefully disconnect the battery at its connector and reconnect after a few seconds. Put back together again and have a working GPS :-) I hate all these modern devices with soft power buttons... Hope that helps someone. (If it's still under warranty I'd replace it, though. Disclaimer on above procedure, of course - you keep the pieces if you break it.) Cheers, -- Matthew [0] Not that it's a bad bit of kit; I really like them. Just the lack of real power button has always worried me, and justifiably so. ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] path or byway ?
Hi, On Sat, Jul 19, 2008 at 06:13:39PM +0100, David Earl wrote: > They are universally rural. They are tracks, yes, but formally public > whereas a track will typically be associated with a farm ore similar. Mostly rural, but not all. There are two in Loughborough that I am aware of - one "Cross Hill Lane": http://informationfreeway.org/?lat=52.756383670302455&lon=-1.2154373874651676&zoom=17&layers=B000F000F The other unnamed, but just labelled as "byway open to all traffic" - on the edge of town, and rather useless as after a while it turns into a private road, no turning room. http://informationfreeway.org/?lat=52.75253955766346&lon=-1.2367663089318803&zoom=17&layers=B000F000F Both are surfaced, and once would have been in the country, of course (like most old roads!). There are many in Suffolk, some tracks, others surfaced, such as http://informationfreeway.org/?lat=52.23996492630855&lon=1.0154108416754053&zoom=17&layers=B000F000F where Swilltub Lane (going North) is a restricted byway, but you can only walk down it as it's all overgrown (in the last 30-40 years or so). Hundred Lane (going East from Swilltub Lane) is a BOAT but indestinguishable from any unclassified road (which it is to the West) apart from a sign saying byway. Byways should be signed in theory, just like a footpath, but might not be of course. Anything labelled "RUPP"[1] is now a byway, since about 2006 (sadly, in my opinion - it's nice to have some strange historic stuff around sometimes). There's an (ex-)RUPP in grey here: http://informationfreeway.org/?lat=52.23587828332072&lon=0.988159603986547&zoom=17&layers=B000F000F I usually label with something like "uk:row=B.O.A.T.", or similar, at least before highway=byway (oxymoron=true? ;-) ) started to be used. Cheers, -- Matthew [1] Road used as a public path ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] Campus map - Who's got a good one?
On Wed, Oct 01, 2008 at 10:29:26AM +0100, Jonathan Bennett wrote: > Ian Dees wrote: > > It might be interesting to start a "draw your campus" competition > > similar to the one that Google did for its Sketchup application, but on > > OSM. What d'ya think? > > I think we should actually ask the marketing departments of the > Universities in question to arrange a donation of their own maps and > data to the project. I'll ask Surrey -- anyone else up for it? If they are anything like the University of Leicester, where I work, then the internal maps will be based on OS data. Worth asking, but don't be surprised if this is the answer! Cheers, -- Matthew ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
