Re: [OSM-dev] WMS API - where to start
Not sure what you mean by "designing a WMS API" but a search on "WMS specification" seems a good start. - Chris - On Thu, Apr 15, 2010 at 12:35, bernhard wrote: > hi all > > I'm working again on my map maplib. > http://github.com/robotnic/khtmlib > Internet Explorer should work now (exept vector graphics). > > The next thing I want to implement is WMS support. > > Implemetation should be easy. But I don't know how to design the API? > > Can somebody point me to a starting point? > > Bernhard > > > ___ > dev mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/dev > ___ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] WMS Overlay Disappears
Thomas, Thanks! That sent me down the right path. Andy Thomas Wood wrote: > This is more suited to the OpenLayers list, but at a guess it's > because of an incorrect maxResolution setting on the WMS layer, they > default to the Map, or if that's not set, auto-generated not always > successfully. > > Setting up the Map object as shown here should be the first step to > getting the overlay to display. > http://wiki.openstreetmap.org/wiki/OpenLayers_Simple_Example#Instructions > > 2009/3/30 Andrew Ayre : >> Hi! I am generating a map using OpenLayers with an OSM base map and a >> WMS overlay. At the backend I am running GeoServer 1.7.3 with PostGIS. >> >> I can view my WMS data fine in the client in GeoServer and in uDig. >> However when I overlay it on my OpenLayers map it disappears at nearly >> all the zoom levels. Here is a demo: >> >> http://www.britishideas.com/osm >> >> When you load this you can see a black dot over southern Arizona. This >> is my overlay. When you zoom in it disappears. >> >> Any ideas what I am doing wrong? >> >> thanks, Andy -- Andy PGP Key ID: 0xDC1B5864 ___ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] WMS Overlay Disappears
This is more suited to the OpenLayers list, but at a guess it's because of an incorrect maxResolution setting on the WMS layer, they default to the Map, or if that's not set, auto-generated not always successfully. Setting up the Map object as shown here should be the first step to getting the overlay to display. http://wiki.openstreetmap.org/wiki/OpenLayers_Simple_Example#Instructions 2009/3/30 Andrew Ayre : > Hi! I am generating a map using OpenLayers with an OSM base map and a > WMS overlay. At the backend I am running GeoServer 1.7.3 with PostGIS. > > I can view my WMS data fine in the client in GeoServer and in uDig. > However when I overlay it on my OpenLayers map it disappears at nearly > all the zoom levels. Here is a demo: > > http://www.britishideas.com/osm > > When you load this you can see a black dot over southern Arizona. This > is my overlay. When you zoom in it disappears. > > Any ideas what I am doing wrong? > > thanks, Andy > > -- > Andy > PGP Key ID: 0xDC1B5864 > > ___ > dev mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/dev > -- Regards, Thomas Wood (Edgemaster) ___ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] WMS
On Thu, Jun 26, 2008 at 03:07:42AM +0200, Iván Sánchez Ortega wrote: > El Miércoles, 25 de Junio de 2008, 80n escribió: > > > So, I'd like to know if you think it would be a good idea to do load > > > balancing between several OSMXAPI servers. > > > > This is probably a good idea. Do you have any servers in mind? > > Well, for what I've read in the Wiki about OSMXAPI, I only know about > Informationfreeway. Is there a complete list of OSMXAPI servers? Running osmxapi takes about 400GB of disk, and the faster the better. Thus far, no one else has offered a server for hosting osmxapi other than me/HyperCube, despite Etienne saying several times that it would be easy to set up a new copy if people were interested, afaik. Regards, -- Christopher Schmidt MetaCarta ___ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
Re: [OSM-dev] WMS
On Thu, Jun 26, 2008 at 03:07:42AM +0200, Iv?n S?nchez Ortega wrote: > Well, for what I've read in the Wiki about OSMXAPI, I only know about > Informationfreeway. Is there a complete list of OSMXAPI servers? print length(OSMXAPI_SERVERS) > 1 ___ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
Re: [OSM-dev] WMS
Iván Sánchez Ortega wrote: > El Miércoles, 25 de Junio de 2008, 80n escribió: >>> So, I'd like to know if you think it would be a good idea to do load >>> balancing between several OSMXAPI servers. >> This is probably a good idea. Do you have any servers in mind? > > Well, for what I've read in the Wiki about OSMXAPI, I only know about > Informationfreeway. Is there a complete list of OSMXAPI servers? AFAIK you just wrote the complete list :) Stefan ___ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
Re: [OSM-dev] WMS
El Miércoles, 25 de Junio de 2008, 80n escribió: > > So, I'd like to know if you think it would be a good idea to do load > > balancing between several OSMXAPI servers. > > This is probably a good idea. Do you have any servers in mind? Well, for what I've read in the Wiki about OSMXAPI, I only know about Informationfreeway. Is there a complete list of OSMXAPI servers? -- -- Iván Sánchez Ortega <[EMAIL PROTECTED]> MSN:[EMAIL PROTECTED] Jabber:[EMAIL PROTECTED] ; [EMAIL PROTECTED] signature.asc Description: This is a digitally signed message part. ___ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
Re: [OSM-dev] WMS
2008/6/25 Iván Sánchez Ortega <[EMAIL PROTECTED]>: > Hi all, > > > First of all, I want to say that WMS sucks. The 100-page spec sucks, the > efficiency sucks. > > > That said, I just committed to SVN a set of hacks I've come to call "OSM > WMS". > > Why? Long story short, this will allow me to promote OSM to GIS people. Or, > as > FakeSteveC would say, Arctards. > > However, the current implementation has the potential of pounding the API > down > to its knees (no caching of any kind). In fact, I think it has more bugs > than > features. > > So, I'd like to know if you think it would be a good idea to do load > balancing > between several OSMXAPI servers. > This is probably a good idea. Do you have any servers in mind? > > (Yes, I know the best solution is to set up a local mirror of the database > given a planet dump, and get the data from there. I just wanted to make > something very simple to set up.) > > Also, would it be a good idea to call OSMXAPI with the whole earth as a > BBOX > and try to render the whole coastline? Any ideas on how an OSM WMS would > behave on such large requests? > > > Cheers, > -- > -- > Iván Sánchez Ortega <[EMAIL PROTECTED]> > > Don't tell any big lies today. Small ones can be just as effective. > > ___ > dev mailing list > [email protected] > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev > > ___ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
Re: [OSM-dev] WMS
Iván Sánchez Ortega schreef: > However, the current implementation has the potential of pounding the API > down > to its knees (no caching of any kind). In fact, I think it has more bugs than > features. > > So, I'd like to know if you think it would be a good idea to do load > balancing > between several OSMXAPI servers. > > (Yes, I know the best solution is to set up a local mirror of the database > given a planet dump, and get the data from there. I just wanted to make > something very simple to set up.) > > Also, would it be a good idea to call OSMXAPI with the whole earth as a BBOX > and try to render the whole coastline? Any ideas on how an OSM WMS would > behave on such large requests? If you would like to test it on an external datasource, and have only SQL request, I'm happy to port the WMS stuff in a new handler for my webserver osm plugin. Stefan ___ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
