Re: [OSGeo-Discuss] Demo WMS server
Hi Jochen, The deegree demo server [1] hosts a WMS as well. It always runs with the latest stable version of deegree. The Base-URL for the deegree WMS [2], an example for the GetCapabilities [3] and, last but not least, an example for serving OSM slippy maps via WMS [4] as direct data source are also available. [1]http://demo.deegree.org [2]http://demo.deegree.org/deegree-wms/services? [3]http://demo.deegree.org/deegree-wms/services?REQUEST=GetCapabilitiesversion=1.1.1service=WMS [4]http://demo.deegree.org/deegree-wms/wms.jsp - Special features of deegree WMS Greetings, Judit Jochen Topf schrieb: I am just working on a piece of Open Source software that can access WMS servers. I'd like to have some kind of demo server that could be configured in the software by default so that people have a working configuration directly after install which makes it easier for them to get going. The server doesn't have to do much, just deliver a simple world map or so. I looked around a bit for suitable demo servers, but didn't find any. It should be something with a reasonable chance that it will be around for a while. I could imagine that other people have the same problem. How about having such a WMS server on a OSGeo host somewhere? I don't expect a huge amount of load on such a server, its just for demo and not for actual use, really. What do you think about this? I don't have access to any OSGeo hosts, but would be willing to help with the setup. Jochen -- l a t / l o n GmbH Aennchenstrasse 19 53177 Bonn, Germany phone ++49 +228 18496-0fax ++49 +228 18496-29 http://www.lat-lon.de http://www.deegree.org Follow deegree on Twitter: http://twitter.com/deegree_org signature.asc Description: OpenPGP digital signature ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] Demo WMS server
I don't have any demo server to offer. But this application may help you to find WMS services: http://ows-search-engine.appspot.com/ Benjamin Le 11/05/2010 17:40, Jochen Topf a écrit : I am just working on a piece of Open Source software that can access WMS servers. I'd like to have some kind of demo server that could be configured in the software by default so that people have a working configuration directly after install which makes it easier for them to get going. The server doesn't have to do much, just deliver a simple world map or so. I looked around a bit for suitable demo servers, but didn't find any. It should be something with a reasonable chance that it will be around for a while. I could imagine that other people have the same problem. How about having such a WMS server on a OSGeo host somewhere? I don't expect a huge amount of load on such a server, its just for demo and not for actual use, really. What do you think about this? I don't have access to any OSGeo hosts, but would be willing to help with the setup. Jochen ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] Demo WMS server
Thanks, I actually looked at the degree demo server and found at least the layers I tested to be empty. :-( And because of the size restriction I can't use it in my case anyway. And thanks for the other suggestions on this list. None so far solve my problem. I do not have a WMS client with a user interface where people could go through the layers list to chose one. (And then maybe wonder, why this particular layer doesn't work in this case or so.) I only have a config file which needs a WMS URL, layer and SRS at a minimum. Something that ideally will never change. I don't want to hardcode a layer that might not exist anymore tomorrow. Of course I can set this up easily myself, but would prefer to do it somewhere where it benefits other people and the community as a whole can support it. Jochen On Wed, May 12, 2010 at 09:11:07AM +0200, Judit Mays wrote: Date: Wed, 12 May 2010 09:11:07 +0200 From: Judit Mays m...@lat-lon.de To: OSGeo Discussions discuss@lists.osgeo.org Subject: Re: [OSGeo-Discuss] Demo WMS server Hi Jochen, The deegree demo server [1] hosts a WMS as well. It always runs with the latest stable version of deegree. The Base-URL for the deegree WMS [2], an example for the GetCapabilities [3] and, last but not least, an example for serving OSM slippy maps via WMS [4] as direct data source are also available. [1]http://demo.deegree.org [2]http://demo.deegree.org/deegree-wms/services? [3]http://demo.deegree.org/deegree-wms/services?REQUEST=GetCapabilitiesversion=1.1.1service=WMS [4]http://demo.deegree.org/deegree-wms/wms.jsp - Special features of deegree WMS Greetings, Judit Jochen Topf schrieb: I am just working on a piece of Open Source software that can access WMS servers. I'd like to have some kind of demo server that could be configured in the software by default so that people have a working configuration directly after install which makes it easier for them to get going. The server doesn't have to do much, just deliver a simple world map or so. I looked around a bit for suitable demo servers, but didn't find any. It should be something with a reasonable chance that it will be around for a while. I could imagine that other people have the same problem. How about having such a WMS server on a OSGeo host somewhere? I don't expect a huge amount of load on such a server, its just for demo and not for actual use, really. What do you think about this? I don't have access to any OSGeo hosts, but would be willing to help with the setup. Jochen -- l a t / l o n GmbH Aennchenstrasse 19 53177 Bonn, Germany phone ++49 +228 18496-0fax ++49 +228 18496-29 http://www.lat-lon.de http://www.deegree.org Follow deegree on Twitter: http://twitter.com/deegree_org ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss -- Jochen Topf joc...@remote.org http://www.remote.org/jochen/ +49-721-388298 ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] open source polygon cluster aggregation algorithm?
I have to work with plsql, the jts have the right algorithm so I've decided to try it out: wrap the jts inside java stored procedures. It hasn't been straigthforward but it works. Thanks for the hint Mike. Fortunatly gt oracle-spatial plugin has some code to map oracle.sql.STRUCT to JTS geometry, so I've extrapolated the needed classes only, because it was too much to load the whole gt classes in Oracle! giovanni 2010/5/10 Mike Toews mwto...@gmail.com: The recent JTS has a nice buffering options, namely the mitre buffer. It does not have rounded corners, and has been very useful to me (i.e., we can physically survey-out the buffer on the ground with fewer points to locate and stake out). http://lin-ear-th-inking.blogspot.com/2007/12/new-buffer-styles-in-jts-19.html Although I'm no expert at plsql, it appears it can be extended with java, so maybe it could be possible to wrap the Oracle WKT/B(?) through JTS: http://www.devshed.com/c/a/Oracle/Extending-PLSQL-with-Java-Libraries/ Someone must have done this for plsql in the past ... -Mike On 9 May 2010 06:01, G. Allegri gioha...@gmail.com wrote: Hi Stefan. You guessed right, it's buildings generalization. I know jts and geos quite well but unfortunatly I can't use them because I'm working directly on oracle with plsql. I think buffer is the way, but not the one oracle provides because it rounds the corners... Bye, Giovanni 2010/5/7 Stefan Steiniger sst...@geo.uzh.ch: how about using R it has alpha shapes and a-like? What you describe sounds like a problem in map generalization. I.e. the approach of buffering is something what a colleague of mine once implemented to generalize house-blocks for maps (aggregate the single buildings). Unfortunately I don't know of any accessible code for that. If you are proficient in Java or C++ you could make you custom implementation with JTS or Geos (sounds easy to me). on what geographic objects are you working on? and how much does the shape to be need to maintained? stefan G. Allegri wrote: Aside A nice implementation of alpha shapes with jts: http://www.mail-archive.com/jts-de...@lists.jump-project.org/msg01019.html /Aside 2010/5/6 G. Allegri gioha...@gmail.com: Thanks Andrea for the links. Yes, I think the problem is similar, in fact I was also looking for concave hull and alpha shapes algoithms, but the only open solution I've found is from CGAL [1] and... it's too complex to extract and reimplement in my context (database procedural programming). IWe have implemented something very rude: 1 - logically aggregate polyongs in clusters (given a certain distance) 2 - buffer each polygon mantaining the shape (not the usual buffer, which make rounded artifacts) 3 - geometrical union 4 - shrink the result (unbuffer) But I have the time for a long holiday waiting the end of the process :) [1] http://www.cgal.org/Manual/last/doc_html/cgal_manual/Alpha_shapes_2/Chapter_main.html 2010/5/6 Andrea Aime aa...@opengeo.org: G. Allegri ha scritto: I'm looking for an algorithm to do polygon cluster aggregation, similar to the ArcInfo Aggregate Polygon [1]. I know about GEOS Cascaded Union, but I need two more features: 1 - clustering of polygons that fall within a a certain threshold distance from each other 2 - mantain orthogonality, i.e. the original angles/shapes I don't know of any such implementation, but it looks somewhat similar to the computation of a concave hull: http://ubicomp.algoritmi.uminho.pt/local/concavehull.html http://stackoverflow.com/questions/83593/is-there-an-efficient-algorithm-to-generate-a-2d-concave-hull Cheers Andrea -- Andrea Aime OpenGeo - http://opengeo.org Expert service straight from the developers. ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] Demo WMS server
Jochen Topf schrieb: Thanks, I actually looked at the degree demo server and found at least the layers I tested to be empty. :-( Hi Jochen, as we are constantly working on improvements for our services, I would be very interested to hear more about these problems. Maybe we can discuss them on the deegree users list or by private mail? Greetings, Judit -- l a t / l o n GmbH Aennchenstrasse 19 53177 Bonn, Germany phone ++49 +228 18496-0fax ++49 +228 18496-29 http://www.lat-lon.de http://www.deegree.org Follow deegree on Twitter: http://twitter.com/deegree_org ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
