Re: [Geoserver-users] Disperse Markers in geoserver/openlayers
Thanks, but how easy would it be to use the two methods together(clustering and declustering) when zooming to different levels(like Spatialkey.com) ? Maybe by using multiple levels? Also, what about on the fly cubic interpolation of point values. It's not very computer intensive(Spatialkey.com use that as well on points). -Håvard 2011/9/22 Andrea Aime andrea.a...@geo-solutions.it: 2011/9/22 Håvard Wahl Kongsgård haavard.kongsga...@gmail.com: Hi, I have a problem with overlapping points(identical XY). Googling I found that Arcgis has a useful tool Disperse Markers which expands clustered(overlapping points) http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?id=1313pid=1306topicname=Disperse_Markers_(Cartography) . Is a similar feature available in geoserver/openlayers for expanding point clusters on the fly? The math behind it must be very simple, so the alternative is to created a new geom in postigs with expanded clusters. There is a little trick you can employ. Text symbolizers in GeoServer can be associated to a graphic, which in the original intention was the road plate, a background graphic that would be moved along with the label Now, if your label is empty space you can use label displacement to actually move away the points in a controlled way. The downside if you want is that if a new position cannot be found, not even by moving it around within the specified distance, the point won't be painted at all. Here is an example map with cities: http://demo1.geo-solutions.it/playground/GeoSolutions/wms?LAYERS=GeoSolutions%3AcitiesSTYLES=starsFORMAT=image%2FpngSERVICE=WMSVERSION=1.1.1REQUEST=GetMapEXCEPTIONS=application%2Fvnd.ogc.se_inimageSRS=EPSG%3A4326BBOX=-0.59257250976506,38.661416015626,24.887332275391,51.617299804688WIDTH=649HEIGHT=330 and here is the same with the trick above: http://demo1.geo-solutions.it/playground/GeoSolutions/wms?LAYERS=GeoSolutions%3AcitiesSTYLES=displaceFORMAT=image%2FpngSERVICE=WMSVERSION=1.1.1REQUEST=GetMapEXCEPTIONS=application%2Fvnd.ogc.se_inimageSRS=EPSG%3A4326BBOX=-0.59257250976506,38.661416015626,24.887332275391,51.617299804688WIDTH=649HEIGHT=330 I guess you'll need to play a bit with it to get it right, but it may work. The full style is here: http://demo1.geo-solutions.it/playground/styles/displace.sld Cheers Andrea -- --- Ing. Andrea Aime GeoSolutions S.A.S. Tech lead Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.youtube.com/user/GeoSolutionsIT http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf --- -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
Re: [Geoserver-users] Disperse Markers in geoserver/openlayers
2011/9/23 Håvard Wahl Kongsgård haavard.kongsga...@gmail.com: Thanks, but how easy would it be to use the two methods together(clustering and declustering) when zooming to different levels(like Spatialkey.com) ? Maybe by using multiple levels? Also, what about on the fly cubic interpolation of point values. It's not very computer intensive(Spatialkey.com use that as well on points). Two good ideas, both would require some programming work to be implemented. I guess both would fit well the rendering transformations approach that we have on trunk: http://geo-solutions.blogspot.com/2011/01/developers-corner-have-your-sld.html http://docs.codehaus.org/display/GEOTOOLS/Rendering+transformations (the second link contains details, but does not seem to work at the moment) Cheers Andrea -- --- Ing. Andrea Aime GeoSolutions S.A.S. Tech lead Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.youtube.com/user/GeoSolutionsIT http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf --- -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
[Geoserver-users] Custom SRS IAU Projections
Hello, I have recently installed geoserver and used gdal_retile.py to create pyramids of a lunar basemap. The basemap is projected to Moon2000 GCS (link to the spatialreference.org http://spatialreference.org/ref/iau2000/30100/information). I edited my epgs.properties file and added the OGC WKT (from the link above) to that file using vi. Through geoserver's web administration app, I can see that Moon2000 ( which I numbered 30100) has been added. Unfortunately, the wkt portion is showing up completely empty. I suspect that I need to add a custom datum and or spheroid. Can anyone aim me in the right direction? I wish to add a number of the IAU planetary projections. Also, and I will post to the GDAL list. Using gdal_retile has created a .prj in the root directory of the pyramid tree which has an unname projection. Is this typical, or should I, when retiling for geoserver, be using the projection flag. gdal_info, used on each tile returns the correct information (moon2000, correct bounding box, origin, etc.) Here are the contents of that .prj. PROJCS[unnamed, GEOGCS[GCS Name = GCS_MOON|Datum = D_MOON|Ellipsoid = MOON_localRadius|Prim$ DATUM[GCS Name = GCS_MOON|Datum = D_MOON|Ellipsoid = MOON_localRadius|Pri$ SPHEROID[GCS Name = GCS_MOON|Datum = D_MOON|Ellipsoid = MOON_localRadiu$ PRIMEM[Greenwich, 0.0], UNIT[degree, 0.017453292519943295], AXIS[Geodetic longitude, EAST], AXIS[Geodetic latitude, NORTH]], PROJECTION[Equidistant_Cylindrical], PARAMETER[central_meridian, 0.0], PARAMETER[latitude_of_origin, 0.0], PARAMETER[standard_parallel_1, 0.0], PARAMETER[false_easting, 0.0], PARAMETER[false_northing, 0.0], UNIT[m, 1.0], AXIS[Easting, EAST], AXIS[Northing, NORTH]] Thanks, Jay -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2___ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
Re: [Geoserver-users] WFS namespace issue
Hi Jasper, I was able to reproduce, but couldn't easily find the root of the problem. Odd indeed. Perhaps Justin (cc'd) can spot it out more easily as he knows the WFS module better than anyone. Cheers, Gabriel On Tue, Sep 20, 2011 at 4:13 AM, Jasper de Barbanson geoserver-us...@de-barbanson.com wrote: Recently we discovered a problem regarding namespaces in WFS responses. First we assumed it was an configuration problem on our end, however further analysis has resulted in reproducing this problem in a default Geoserver installation. I have reproduced this issue in Geoserver 2.1.1 using the Web Archive version, installed on linux, and in the Windows Installer version, installed on Windows XP SP3. The problem also exists is the latest nightly build. What is the problem you ask? A WFS-request of datastore X with outputFormat GML 3.1 works fine, however every next WFS-request of another datastore Y will fail. It will fail for all other datastores, accept the first accessed datastore. The response which is generated contains null-namespaces. The namespace of datastore Y is not added to the response, but instead the namespace of datastore X is added. Because of de null-namespaces the response is invalid for most applications and browsers. How-to reproduce? - Take a clean install of Geoserver 2.1.1 - Open the console - Go to Layer Preview - Open de preview for 'tiger:giant_polygon' in format 'WFS - GML3.1' (this should give a correct response) - Open de preview for 'topp:states' in format 'WFS - GML3.1' If you do this in Chrome you get the following error: Namespace prefix null on states is not defined. If you look into the response, you can see there is no namespace defined for 'topp', however there is a namespace for 'tiger'. I have the following questions: - is this a bug in Geoserver? - is so, is there a workaround? - if not, what should I change in the configuration to make WFS-requests work for all datastores? Kind regards, Jasper -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users -- Gabriel Roldan OpenGeo - http://opengeo.org Expert service straight from the developers. -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
[Geoserver-users] Point symbol collide when zoom out
I'm displaying Point of interest as graphics. it works well. However, when zooming out, points near to each other will be overlap each other. Is there a vendor option similiar to what mapserver does with mindistance. It only pick to display a single icon when the other icon is too near. http://osgeo-org.1803224.n2.nabble.com/file/n6826322/label.png -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Point-symbol-collide-when-zoom-out-tp6826322p6826322.html Sent from the GeoServer - User mailing list archive at Nabble.com. -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
