Re: [OSM-dev] Can SQLite3 handle OSM 150G data file?
On 28 Apr 2009, at 00:16, Kelly Jones wrote: I've seen many posts saying that SQLite2 can't handle OpenStreetMap's large planet.osm data file: http://planet.openstreetmap.org/planet-090421.osm.bz2 which is 5.4G bzip2 compressed, about 150G uncompressed. Can SQLite3 handle this? Has anyone tried? I tried to do this myself, but I'm on a slow machine and it's taking too long (several days so far). If someone's done this, can I get a copy? SQLite isn't designed for huge databases like OpenStreetMap. You could get away with a city or small region, but more than that, you will get the slowness that you are seeing. http://www.sqlite.org/faq.html#q19 and some other FAQs on that page. You are much better using Postgres, or even MySQL. Shaun ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Can SQLite3 handle OSM 150G data file?
On Tue, 28 Apr 2009 08:02:30 +0100, Shaun McDonald SQLite isn't designed for huge databases like OpenStreetMap. You could get away with a city or small region, but more than that, you will get the slowness that you are seeing. http://www.sqlite.org/faq.html#q19 and some other FAQs on that page. You are much better using Postgres, or even MySQL. Is there ANY embedded database out there that can handle the planet? Anything that does not require the (unskilled) user of a program to install a local database-server first? Marcus ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Can SQLite3 handle OSM 150G data file?
marcus.wolsc...@googlemail.com wrote: On Tue, 28 Apr 2009 08:02:30 +0100, Shaun McDonald SQLite isn't designed for huge databases like OpenStreetMap. You could get away with a city or small region, but more than that, you will get the slowness that you are seeing. http://www.sqlite.org/faq.html#q19 and some other FAQs on that page. You are much better using Postgres, or even MySQL. Is there ANY embedded database out there that can handle the planet? Anything that does not require the (unskilled) user of a program to install a local database-server first? MonetDB can be running in embedded mode ;) Stefan ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Can SQLite3 handle OSM 150G data file?
There is no reason to be sqlite slow. How much are you are using transactions on your local db? What are you using for import? I'm importing Czech republic (50Mb bziped) in one or two minutes. So for 5.4GB it takes 108 minutes (two hours). But I'm importig to modified osm schema (something like mapnik schema in postgress). It is because of query speed. I'm playing with sqlite and Mapnik. Sqlite knows RTree spatial index and with small modification to mapnik (sqlite datasource) it runs ok. If you use 8x8 tile per render, it is quite fast. RTree in sqlite is fast, but there is overhead, when you use one bound rect per entity and also with mapnik (it queries many times per one render for same area). But if you do not need speed it works. Tomas Shaun McDonald napsal(a): On 28 Apr 2009, at 00:16, Kelly Jones wrote: I've seen many posts saying that SQLite2 can't handle OpenStreetMap's large planet.osm data file: http://planet.openstreetmap.org/planet-090421.osm.bz2 which is 5.4G bzip2 compressed, about 150G uncompressed. Can SQLite3 handle this? Has anyone tried? I tried to do this myself, but I'm on a slow machine and it's taking too long (several days so far). If someone's done this, can I get a copy? SQLite isn't designed for huge databases like OpenStreetMap. You could get away with a city or small region, but more than that, you will get the slowness that you are seeing. http://www.sqlite.org/faq.html#q19 and some other FAQs on that page. You are much better using Postgres, or even MySQL. Shaun ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] API: version number of newly created objects.
2009/4/28 Chris Browet c...@semperpax.com Hi, I see in the api doc: Version numbers will most of the time begin at *1* and increase by *1*every time an element is changed but this behaviour is not guaranteed and should not be relied upon I understand that phrase as I cannot assume that a newly created object will be at version 1. As a creation PUT do not return the version number (AFAIK), does that mean that we are suppose to do a GET on the newly created object to get the version number? If you do a diff upload ( http://wiki.openstreetmap.org/wiki/OSM_Protocol_Version_0.6#Diff_upload:_POST_.2Fapi.2F0.6.2Fchangeset.2F.23id.2Fupload) you will get the version number back in the response and if you update an existing individual object you will get the version number in the response, but, as you say, as documented, creating an individual object won't return the version... I don't know for sure, but, I'd hope that the version number starting at 1 bit is guaranteed even if the increase by 1 isn't... d ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] API: version number of newly created objects.
Hi, Chris Browet wrote: As a creation PUT do not return the version number (AFAIK), does that mean that we are suppose to do a GET on the newly created object to get the version number? No, that would be the stupidest API. I have fixed the Wiki page. Assume new versions to always be 1. If this ever gets changed in the API then the creation call will have to be changed to return the version number as well. Bye Frederik ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] API: version number of newly created objects.
Thanks - Chris - 2009/4/28 Frederik Ramm frede...@remote.org Hi, Chris Browet wrote: As a creation PUT do not return the version number (AFAIK), does that mean that we are suppose to do a GET on the newly created object to get the version number? No, that would be the stupidest API. I have fixed the Wiki page. Assume new versions to always be 1. If this ever gets changed in the API then the creation call will have to be changed to return the version number as well. Bye Frederik ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Can SQLite3 handle OSM 150G data file?
On Tue, Apr 28, 2009 at 8:26 AM, Stefan de Konink ste...@konink.de wrote: marcus.wolsc...@googlemail.com wrote: On Tue, 28 Apr 2009 08:02:30 +0100, Shaun McDonald SQLite isn't designed for huge databases like OpenStreetMap. You could get away with a city or small region, but more than that, you will get the slowness that you are seeing. http://www.sqlite.org/faq.html#q19 and some other FAQs on that page. You are much better using Postgres, or even MySQL. Is there ANY embedded database out there that can handle the planet? Anything that does not require the (unskilled) user of a program to install a local database-server first? MonetDB can be running in embedded mode ;) seriously, you should get paid for the amount you promote MonetDB ;-) cheers, matt ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Problems with rendering tiles with mapnik
DISCLAIMER - I have not set up a mapnik server or followed these instructions. Your error message is probably because it doesn’t understand ‘source’ – do you have this program/script installed? Might be from TCL if I read it correctly. Or it can’t find the file set-mapnik-env – try changing to the directory it’s in (mapnik?) Do not omit the leading periods just means write the line exactly as shown, without skipping the dots at the start. This is again so that your OS knows where to find the scripts referred to. Good luck [http://www.itn.co.uk/images/ITN_Master_blue.gif] PHILLIP BARNETT SERVER MANAGER 200 GRAY'S INN ROAD LONDON WC1X 8XZ UNITED KINGDOM T +44 (0)20 7430 4474 F E phillip.barn...@itn.co.uk WWW.ITN.CO.UKhttp://WWW.ITN.CO.UK P Please consider the environment. Do you really need to print this email? From: dev-boun...@openstreetmap.org [mailto:dev-boun...@openstreetmap.org] On Behalf Of Mohamad Ali Sent: 28 April 2009 04:08 To: dev@openstreetmap.org Subject: [OSM-dev] Problems with rendering tiles with mapnik Hi, I am trying to follow step by step this tutorial: www.weait.com/content/make-your-first-maphttp://www.weait.com/content/make-your-first-map But when I try this command I get this error u...@pc1:~/mapnik$ source set-mapnik-env bash: #!/bin/sh: No such file or directory, also in tutorial, what that mean: Do not omit the leading periods on lines two and three. source set-mapnik-env ./customize-mapnik-map $MAPNIK_MAP_FILE ./z0_generate_tiles.py Thanks Guys Please Note: Any views or opinions are solely those of the author and do not necessarily represent those of Independent Television News Limited unless specifically stated. This email and any files attached are confidential and intended solely for the use of the individual or entity to which they are addressed. If you have received this email in error, please notify postmas...@itn.co.uk Please note that to ensure regulatory compliance and for the protection of our clients and business, we may monitor and read messages sent to and from our systems. Thank You. ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [josm-dev] Deletion conflicts
On 28 Apr 2009, at 09:23, Frederik Ramm wrote: Hi, Shaun McDonald wrote: It is already possible to do a multiget, ... which will return 404 as soon as any one of its targets has been deleted ;-) Nope, you will only get a 404 if the elements have never existed before. If it has been deleted you will get a visible=false. Take this example: http://openstreetmap.org/api/0.6/nodes?nodes=15,18 The maximum number you can request at one time is limited by the length of the GET request, there are no limits set our code, so you may need to bulk it into groups like the gps points call. We could change the call to silently drop the 404, and always return all elements that it could find, with only the elements that could not be found being missing from the list. If no requested ids could be found, then and osm document with no nodes, ways and relations would be returned. Shaun ___ josm-dev mailing list josm-...@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
Re: [OSM-dev] Can SQLite3 handle OSM 150G data file?
On Tue, 28 Apr 2009 09:26:21 +0200, Stefan de Konink ste...@konink.de wrote: marcus.wolsc...@googlemail.com wrote: On Tue, 28 Apr 2009 08:02:30 +0100, Shaun McDonald SQLite isn't designed for huge databases like OpenStreetMap. You could get away with a city or small region, but more than that, you will get the slowness that you are seeing. http://www.sqlite.org/faq.html#q19 and some other FAQs on that page. You are much better using Postgres, or even MySQL. Is there ANY embedded database out there that can handle the planet? Anything that does not require the (unskilled) user of a program to install a local database-server first? MonetDB can be running in embedded mode ;) From what I can see at http://monetdb.cwi.nl/projects/monetdb/SQL/Documentation/Embedded-Server.html#Embedded-Server the embedded-mode is still a server, just for embedded systems. I was talking about having the database as a library be a part of the program. Nothing to install or to start separately. Marcus ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Cloudmade routing for OSM rails_port site.
On Mon, Apr 27, 2009 at 11:04 AM, Марат Хасанов angedo...@gmail.com wrote: Hi all! Let me introduce Routing for OSM! My name is Marat Khasanov and I’m working for CloudMade as Front-End developer. Few days ago I’ve already finished routing tool for OSM project. With this tool you can aOSdd your own routes between points on the map or search for shortest or fastest way by car, bicycle or walking. Current version is based on CM Routing API and interacts with the server over cross-domain JSON requests(similarly to data and search window). You can find possibility to try it here: http://mkhasanov.sandbox.cloudmade.com/directions (only view and routing tabs works) The current algorithm doesn't take into account that roads with access=private or which have barriers on them with access private should be passed through, by default: http://mkhasanov.sandbox.cloudmade.com/directions?lat=44.42775lon=25.99423zoom=15layers=B000FTFTTtravel_mode=carwaypoints=25.98,44.43,26.01013,44.43377 And, as Maarten said, the Permalink is not precise enough, it should provide 5 decimals to be effective in locating a point. Another problem is that the default shortest route for cars should probably avoid tracks, or a shortest on paved roads algorithm should be provided. Problem visible here: http://mkhasanov.sandbox.cloudmade.com/directions?lat=44.3905lon=26.0228zoom=13layers=B000FTFTTtravel_mode=car/shortestwaypoints=25.99,44.41,25.99,44.38 Also, the fast and short route could be the same if the difference isn't noticiable like above, where both the fast and the short route are allegedly 4.7km long. Now it is easy to make your maps better and your mapping more effective finding not crossing roads or other lacks of existing maps. I appreciate community feedback and waiting till you review this functionality and attached patch. Marat. ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev -- Regards, EddyP = Imagination is more important than knowledge A.Einstein ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
[OSM-dev] Embedded databases
I'm slowly hacking on a project that could benefit from an embedded database, and I'm not smart enough to create my own binary format. Furthermore, since we aren't usually under as severe constraints with embedded resources these days, an actual embedded DB makes more sense. I had a few questions regarding people's experiences, however. At the moment, I'm hacking on a prototype that uses Tokyo Cabinet's table store, and geohashes to implement geospatial searches. I'm still working on refining the import process so haven't experimented with how well searches work, and of course geohashes fail near the equator/meridians, so it feels a bit kludgy. Even so, my Ruby code imports a 13.4 meg OSM file into a 7.9M database in about a minute, so performance doesn't seem terrible. I'll still have to implement routing, though, and my geohash hack is about as far as I'll be able to take TC without implementing a custom geospatial datastore, which should be possible for someone smarter than I, but then TC's development process is less than ideal and I don't think it's a good fit. Has anyone used SQLite for more than rendering? There's one report of it working well with Mapnik and another suggestion that it might not. Does anyone have any other experiences to share? How about a working schema and some example import code? I've been reading references to MonetDB. I've googled, but its website seems somewhat disorganized. There appears to be a kernel atop which several interfaces are built? I've encountered references to geospatial support, and routing/embedded use was mentioned here recently. Is the geospatial support confined to a single implementation--only the SQL support, for instance--or does it work across the board? Is there any intro documentation anywhere? I mean, of course there are manuals and tutorials for each component, but what about a tying-it-all-together this is what our architecture gives you that others don't introduction that helps me understand, say, how the different versions can interact? How well does it work with Ruby? Again, either my GoogleFu is weak or it's just not getting used much, because while it reveals the presence of a Ruby library, I can't seem to find any here's what's cool about this and how to start using it blog posts or articles. Feel free to toss out URLs to anything I might have missed, as it certainly isn't my intent to use this list for discussion if there are better resources more readily available, but I'm just not seeing them. :) I've also looked through some of the server/SQL/Xquery docs, but am not clear on how they apply to OSM. Can an XML document be added in its XML form and queried via SQL somehow? Or is there some intermediate import step that makes the data available for routing? Or have I just mis-interpreted what is currently possible? :) Finally, are there any other embedded solutions I may have missed? Ideally, whatever format I use should be accessible via Ruby, whether via existing wrappers or by C libraries I can interface using FFI. ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Cloudmade routing for OSM rails_port site .
On Tue, 28 Apr 2009 16:15:47 +0300, Eddy Petrișor eddy.petri...@gmail.com wrote: I meant shouldn't be passed through. An exception should be made if one of the ends is within the private area. So in other words, the cost of going through an access=private node or way should be way higher than a regular road so that the passing should occur only if absolutely necessary (e.g. must leave a private area or must reach a private area). Hint: Note that a very high cost also means that a huge number of roads that would never lead anywhere near the destination get evaluated in most routing-algorithms. The proper way would probably be to threat ways with access=destination as non-existent unless they contain the destination/start. However that crossing multiple such ways to get to the nearest or the optimal street that is generally available can be a small challenge in coding. That is, if the internal data-format supports such rules at all. So, access=destination is not as easy to implement as you may think. (Same way no one has yet implemented no_uturn turn-restrictions or turn-restrictions with more then 1 node or more then 0 ways in the via role.) Marcus ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Can SQLite3 handle OSM 150G data file?
On Tue, Apr 28, 2009 at 12:29 PM, marcus.wolsc...@googlemail.com wrote: On Tue, 28 Apr 2009 09:26:21 +0200, Stefan de Konink ste...@konink.de wrote: marcus.wolsc...@googlemail.com wrote: On Tue, 28 Apr 2009 08:02:30 +0100, Shaun McDonald SQLite isn't designed for huge databases like OpenStreetMap. You could get away with a city or small region, but more than that, you will get the slowness that you are seeing. http://www.sqlite.org/faq.html#q19 and some other FAQs on that page. You are much better using Postgres, or even MySQL. Is there ANY embedded database out there that can handle the planet? Anything that does not require the (unskilled) user of a program to install a local database-server first? MonetDB can be running in embedded mode ;) From what I can see at http://monetdb.cwi.nl/projects/monetdb/SQL/Documentation/Embedded-Server.html#Embedded-Server the embedded-mode is still a server, just for embedded systems. I was talking about having the database as a library be a part of the program. Nothing to install or to start separately. You could always make your program embed/start the database server regardless of whether it's a library or a server. It would just mean e.g. shipping the postgresql binaries with your program and doing some magic in your program that ensures that the server is started when the program is. ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Embedded databases
As I wrote in another thread I tried sqlite to do rendering along with mapnik. There is no problem to do it even with builtin rtree spatial index. I can try to create some SVN repos to share code, but it was just for playing (not for production). I tweaked postgress datasource in mapnik and make my own implementation of storing GIS geometries, because of no dependecy needs. Also look to existing GIS extension for sqlite. http://www.gaia-gis.it/spatialite/ Importing into sqlite is very fast. I'm using simple C++ importer with expat parser and insert all data in one transaction. Sqlite has also very little size overhead (about 5x size than bzipped OSM). For my another project I use my own datastore, because it is much more faster than universal databases. It uses leveled Z-index. For searching I'm using litmax bigmin method. Its performance is great. So you must choose between speed and simple approach. For routing you will need some special data store to do it fast. Nolan Darilek napsal(a): I'm slowly hacking on a project that could benefit from an embedded database, and I'm not smart enough to create my own binary format. Furthermore, since we aren't usually under as severe constraints with embedded resources these days, an actual embedded DB makes more sense. I had a few questions regarding people's experiences, however. At the moment, I'm hacking on a prototype that uses Tokyo Cabinet's table store, and geohashes to implement geospatial searches. I'm still working on refining the import process so haven't experimented with how well searches work, and of course geohashes fail near the equator/meridians, so it feels a bit kludgy. Even so, my Ruby code imports a 13.4 meg OSM file into a 7.9M database in about a minute, so performance doesn't seem terrible. I'll still have to implement routing, though, and my geohash hack is about as far as I'll be able to take TC without implementing a custom geospatial datastore, which should be possible for someone smarter than I, but then TC's development process is less than ideal and I don't think it's a good fit. Has anyone used SQLite for more than rendering? There's one report of it working well with Mapnik and another suggestion that it might not. Does anyone have any other experiences to share? How about a working schema and some example import code? I've been reading references to MonetDB. I've googled, but its website seems somewhat disorganized. There appears to be a kernel atop which several interfaces are built? I've encountered references to geospatial support, and routing/embedded use was mentioned here recently. Is the geospatial support confined to a single implementation--only the SQL support, for instance--or does it work across the board? Is there any intro documentation anywhere? I mean, of course there are manuals and tutorials for each component, but what about a tying-it-all-together this is what our architecture gives you that others don't introduction that helps me understand, say, how the different versions can interact? How well does it work with Ruby? Again, either my GoogleFu is weak or it's just not getting used much, because while it reveals the presence of a Ruby library, I can't seem to find any here's what's cool about this and how to start using it blog posts or articles. Feel free to toss out URLs to anything I might have missed, as it certainly isn't my intent to use this list for discussion if there are better resources more readily available, but I'm just not seeing them. :) I've also looked through some of the server/SQL/Xquery docs, but am not clear on how they apply to OSM. Can an XML document be added in its XML form and queried via SQL somehow? Or is there some intermediate import step that makes the data available for routing? Or have I just mis-interpreted what is currently possible? :) Finally, are there any other embedded solutions I may have missed? Ideally, whatever format I use should be accessible via Ruby, whether via existing wrappers or by C libraries I can interface using FFI. ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Can SQLite3 handle OSM 150G data file?
Hi, There is no reason to be sqlite slow. How much are you are using transactions on your local db? What are you using for import? I'm importing Czech republic (50Mb bziped) in one or two minutes. So for 5.4GB it takes 108 minutes (two hours). But I'm importig to modified osm schema (something like mapnik schema in postgress). It is because of query speed. sounds cool. Is the Script that does the conversion from osm.xml into sqlite available somewhere? Thanks best regards, ce ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] [bug] direction of GPS traces
This thread seemed to fizzle out without coming to a conclusion. I would suggest the following: - Many developers (never mind users) did not appreciate that the opposite of 'public' in this context is 'anonymous'. - Although the wiki does explain this, the GPX upload page does not, it just has a 'public' checkbox. - It is not unreasonable for users to think that the opposite of 'public' is 'private' - ie, only visible to the user who uploaded the trace. - We should include some text next to the 'public' checkbox to explain - something like Note that all GPX traces uploaded to OSM are visible to all users. Selecting 'public' will associate the trace the user who uploaded it, otherwise it will be anonymous. Does this sound reasonable? I would offer to add the text myself, but I can't find the HTML in the SVN repository. Please will someone either make this change (or something similar), or tell me how to do it? Regards Graham. 2009/4/16 Johnny Rose Carlsen o...@wenix.dk Frederik Ramm frede...@remote.org wrote: Karl Newman wrote: I've been around OSM for a few years now and I was not aware private GPS trackpoints were available for download. Firstly, the API does not talk of private GPS tracks. It only gives you a checkbox saying public. If you go to My GPS traces, then it says PRIVATE with red letters. Maybe indicating that the traces are anonymous would be better. Best Regards, - Johnny Carlsen ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev -- Dr. Graham Jones Hartlepool, UK email: grahamjones...@gmail.com ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Can SQLite3 handle OSM 150G data file?
On 09-04-28 09:14:31 CEST, marcus.wolsc...@googlemail.com wrote: Is there ANY embedded database out there that can handle the planet? Anything that does not require the (unskilled) user of a program to install a local database-server first? has anybody tried embedded innodb? i saw mention of it in the news a few days ago. rj ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
[OSM-dev] Slippy Map Elevation Overlay
I sometimes think that the main slippy map has a bit too much plain white, especially in undeveloped places where there are not many roads such as the Pennines or North Yorkshire Moors in Northern England - I keep wondering if this is an un-mapped area, or if there is nothing there The cycle map is very good with shaded elevation contours, but the main osmarender and mapnik maps do not include this. I would like this sort of shading to be available for the main map too, but I am not convinced that rendering it into the tiles is good, because sometimes those extra colours or contour lines are a distraction, so it would be nice for the user to be able to switch them off. I wondered if there is any reason why we could not create an overlay of elevation information (contours and or shading) that could sit on top of the main map as a user selectable leayer? I have had a quick go at http://maps.webhop.net/srtm.html. It sort of works - the high ground stands out, and you can see the shape of the ground, and you can switch the overlay off and on. It does not work that well as an overlay though because it is not really transparent enough. I find that sometimes the transparency works quite well and you can see the map underneath, and others it is practically opaque. I struggle a bit with javascript and openlayers and wondered if anyone could suggest how I could sort out the opacity problem a bit better? Maybe the main map should use a transparent background, and use the elevation data as the base layer with the map as the overlay? Regards Graham. -- Dr. Graham Jones Hartlepool, UK email: grahamjones...@gmail.com ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
[OSM-dev] Problems with rendering tiles with mapnik
Actually guys, I have Ubuntu OS, and I am a newbie to Linux, I think You are right, Ubuntu is missing the shell, I googled about Install sh but I didn't find information that can help me to fix the problem? Please can u give me more details? Thanks guys, Mohamad ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Problems with rendering tiles with mapnik
El Miércoles, 29 de Abril de 2009, Mohamad Ali escribió: Actually guys, I have Ubuntu OS, and I am a newbie to Linux, I think You are right, Ubuntu is missing the shell, Missing?? Applications - Accesories - Terminal ... -- -- Iván Sánchez Ortega i...@sanchezortega.es http://ivan.sanchezortega.es MSN:i_eat_s_p_a_m_for_breakf...@hotmail.com Jabber:ivansanc...@jabber.org ; ivansanc...@kdetalk.net IRC: ivansanchez @ OFTC freenode signature.asc Description: This is a digitally signed message part. ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
[OSM-dev] More Immediate Changeset Feedback
Would it be possible (I know, patches welcome -- I'm just asking about feasibility right now) to stream the node IDs back as the API creates them instead of waiting until the /changeset/upload operation is finished? This would potentially kill two birds with one stone: 1. Give the clients the ability to show progress 2. Save some memory on the API server (don't have to store the node IDs in memory, can just stream them out) ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Problems with rendering tiles with mapnik
El Miércoles, 29 de Abril de 2009, Dirk-Lüder Kreie escribió: I think You are right, Ubuntu is missing the shell, Missing?? he has /bin/bash apparently, but not /bin/sh Debian and Debian-like systems (i.e. Ubuntu) use bash as a replacement of sh. So, if /bin/sh is *really* missing, just running ln -s /bin/bash /bin/sh should solve the problem. -- -- Iván Sánchez Ortega i...@sanchezortega.es A todos nos gustan las citas sin sentido sacadas de películas mediocres que nos hacen parecer intelectuales. -- The Ninja Bunny signature.asc Description: This is a digitally signed message part. ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Problems with rendering tiles with mapnik
I have Applications - Accesories - Terminal ... -Original Message- From: Dirk-Lüder Kreie [mailto:osm-l...@deelkar.net] Sent: Wednesday, April 29, 2009 10:05 AM To: Iván Sánchez Ortega Cc: dev@openstreetmap.org; Mohamad Ali Subject: Re: [OSM-dev] Problems with rendering tiles with mapnik Iván Sánchez Ortega schrieb: El Miércoles, 29 de Abril de 2009, Mohamad Ali escribió: Actually guys, I have Ubuntu OS, and I am a newbie to Linux, I think You are right, Ubuntu is missing the shell, Missing?? he has /bin/bash apparently, but not /bin/sh -- Dirk-Lüder Deelkar Kreie Bremen - 53.0952°N 8.8652°E ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] Slippy Map Elevation Overlay
Graham Jones (Physics) wrote: I sometimes think that the main slippy map has a bit too much plain white, especially in undeveloped places where there are not many roads such as the Pennines or North Yorkshire Moors in Northern England - I keep wondering if this is an un-mapped area, or if there is nothing there The cycle map is very good with shaded elevation contours, but the main osmarender and mapnik maps do not include this. I would like this sort of shading to be available for the main map too, but I am not convinced that rendering it into the tiles is good, because sometimes those extra colours or contour lines are a distraction, so it would be nice for the user to be able to switch them off. I wondered if there is any reason why we could not create an overlay of elevation information (contours and or shading) that could sit on top of the main map as a user selectable leayer? I have had a quick go at http://maps.webhop.net/srtm.html. It sort of works - the high ground stands out, and you can see the shape of the ground, and you can switch the overlay off and on. It does not work that well as an overlay though because it is not really transparent enough. I find that sometimes the transparency works quite well and you can see the map underneath, and others it is practically opaque. pretty nice, though when zoomed in, it gets blocky - maybe this is actually how the parcel boundaries are, maybe you where just trying to get stuff prototyped.I keep thinking it would be nice to integrate OSM data with free satellite data like java based WorldWind NASA data as the background - haven't really researched this yet. ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
[OSM-dev] Hi OpenStreetMap
Hi Guys We are very happy to join your Project, Wonderful Project We will take a breath and go deeper.. Have a Nice Day Sam The new Internet Explorer 8 optimised for Yahoo!7: Faster, Safer, Easier.___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
[OSM-dev] List of Questions
Sorry We are at beginning, but it's good to understand the basics, how do mapnik create the image from osm file? where are the images are located? Enjoy a better web experience. Upgrade to the new Internet Explorer 8 optimised for Yahoo!7. Get it now.___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
[OSM-dev] building A openstreetmap server
I would to comment about I read: is it correct that everyone can build his openstreet map server? if yes , what are the needs of hardwares and softwares? I tried long time to look for a free mapping system, but I didnt and I think OpenStreetMap is a Wonderful one if it's open source and can be used everywhere... Cheers Guys Enjoy a safer web experience. Upgrade to the new Internet Explorer 8 optimised for Yahoo!7. Get it now.___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] List of Questions
Mapnik get : -the images from Symbols file - data from osm files then mapnik draws (renders) tha images is it true? and about mod_tile, we need to read it first.. sorry not yet finished thanks, and it was a funny joke, hahaha Cheers From: Stephan Plepelits sk...@xover.htu.tuwien.ac.at To: Sam Mor sam_...@y7mail.com Cc: OpenstreetMap DevList dev@openstreetmap.org Sent: Wednesday, 29 April, 2009 2:29:04 PM Subject: Re: [OSM-dev] List of Questions On Tue, Apr 28, 2009 at 08:35:35PM -0700, Sam Mor wrote: Sorry We are at beginning, but it's good to understand the basics, how do mapnik create the image from osm file? Check out this howto: http://wiki.openstreetmap.org/wiki/Mapnik where are the images are located? It depends where you put them ;) Sorry I'm kidding. You can either render them before you serve them to the Web, which doesn't sound bad first, but unfortunately it takes a long time. As alternative you can use mod_tile, an extension for the apache webserver, which renders on demand, and as an advantage serves cached tiles much faster than apache alone. http://wiki.openstreetmap.org/wiki/Mod_tile Hope I could help you. greetings, Stephan -- Seid unbequem, seid Sand, nicht Öl im Getriebe der Welt! - Günther Eich ,-. | Stephan Plepelits, | | Technische Universität Wien - Studium Informatik Raumplanung | | openstreetbrowser.org couchsurfing.com tubasis.at bl.mud.at | | sk...@xover..htu.tuwien.ac.at - My Blog: http://plepe.at | `-' The new Internet Explorer 8 optimised for Yahoo!7: Faster, Safer, Easier.___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [josm-dev] Deletion conflicts
On Mon, 27 Apr 2009, Frederik Ramm wrote: Idea 2: Before re-downloading an area, let JOSM mark all objects that came from the API on the last download as possibly deleted. On merging the newly downloaded dataset with the existing data, reset that flag for every object retrieved from the API. The remaining objects flagged possibly deleted have been deleted on the server and should either be silently removed, or if they have local modifications, a conflict dialog needs to be shown. Probably this idea combined with special status request for these nodes with that flag are best. And if the node status request could be done for multiple nodes at once it would speed up a lot. Ciao -- http://www.dstoecker.eu/ (PGP key available) ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
Re: [josm-dev] Deletion conflicts
On 28 Apr 2009, at 08:17, Dirk Stöcker wrote: On Mon, 27 Apr 2009, Frederik Ramm wrote: Idea 2: Before re-downloading an area, let JOSM mark all objects that came from the API on the last download as possibly deleted. On merging the newly downloaded dataset with the existing data, reset that flag for every object retrieved from the API. The remaining objects flagged possibly deleted have been deleted on the server and should either be silently removed, or if they have local modifications, a conflict dialog needs to be shown. Probably this idea combined with special status request for these nodes with that flag are best. And if the node status request could be done for multiple nodes at once it would speed up a lot. It is already possible to do a multiget, thus up to 4 requests would be required. Map, then one for each of nodes, ways and relations. http://wiki.openstreetmap.org/wiki/OSM_Protocol_Version_0.6#Multi_fetch:_GET_.2Fapi.2F0.6.2F.5Bnodes.7Cways.7Crelations.5D Shaun ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
Re: [josm-dev] Deletion conflicts
Hi, Shaun McDonald wrote: It is already possible to do a multiget, ... which will return 404 as soon as any one of its targets has been deleted ;-) Bye Frederik ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
Re: [josm-dev] Deletion conflicts
On Tue, Apr 28, 2009 at 11:32:51AM +0200, Rolf Bode-Meyer wrote: 2009/4/27 Frederik Ramm frede...@remote.org: (Incidentally - how can a node have only one version and this is deleted? Would one not have to first create the node, making v1, then delete it, making v2?) Why? Deleting doesn't create a version of the deleted element. I don't think CVS does either. CVS (and RCS, I think) do in a sense create a version of the deleted element, by moving the ,v file to an Attic directory in the repository. I think that the revision-per-tree approach of Subversion makes much more sense than the revision-per-file approach of CVS and RCS. The Subversion model could be impractical for OSM, though. There are so many objects being edited concurrently, all over the world. While someone is working on a small local change, the global revision count could easily grow by hundreds or thousands. How do distributed revision control systems solve this problem? Marko ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
Re: [josm-dev] Deletion conflicts
Hi, Rolf Bode-Meyer wrote: (Incidentally - how can a node have only one version and this is deleted? Would one not have to first create the node, making v1, then delete it, making v2?) Why? Deleting doesn't create a version of the deleted element. I don't think CVS does either. I don't know about CVS, but in OSM, deleting something *does* create a new version that differs from the previous version only in the value of the visible attribute (and of course changeset and timestamp). Bye Frederik ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
Re: [josm-dev] Deletion conflicts
2009/4/27 Frederik Ramm frede...@remote.org: (Incidentally - how can a node have only one version and this is deleted? Would one not have to first create the node, making v1, then delete it, making v2?) Why? Deleting doesn't create a version of the deleted element. I don't think CVS does either. Rolf ___ josm-dev mailing list josm-dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/josm-dev
