Hmmm many many thanks Ryan and Matt.. at least now I know it's not my fault... (but I have spent one day on this problem :-( )
now the new problem is: How to destroy the unuseful and automatically load the useful layers?? I will try to find a solution.. but any suggestion is welcome.. :-) Thanks Ivan Il giorno mer, 07/04/2010 alle 10.29 -0500, Ryan Williams ha scritto: > Ivan, > the OpenLayers wiki > (http://trac.openlayers.org/wiki/FrequentlyAskedQuestions) has an FAQ > on this, it says: > > > What is the maximum amount of layers I can have in my OpenLayers Map? > > The limit is about 75. After that, layers can appear above popups. > This has to do with the z-index in CSS (determines what is 'above' > what). Layers (overlay) start at a z-index of 325. Popups start at > 750. Controls start at 1000. > Every layer 'takes up' about 5 indexes, so it will reach it's limit at > around 75 layers. You cannot have more than 250 popups for the same > reason. > If you need more than 75 layers, consider destroying the ones you > don't show instead of hiding them and recreate them when needed. > > I haven't encountered this myself yet though, so I don't have any > details on how to do the destroying. > Ryan > > On 4/7/2010 10:18 AM, ivan marchesini wrote: > > I can't solve a strange problem.. > > > > If you have sometime to spend go here: > > > > http://alderaan.irpi.cnr.it/test_geoext_06/webgis4.html > > > > 1- please click on a the map and you will get the popup... OK this is > > correct > > > > 2 - now move on the panel "Limiti Amministrativi" (on the right... ) and > > choose the Tab "Mappe" switching on the layer "Limiti Amm. - Comuni" > > > > 3 - please click on a the map and you will get the popup.. but under the > > layer!!!!!!!!!!!! > > > > > > I can't understand!!!! > > > > this web application contains around 100 layers.. > > I add these layer to the map in groups: > > > > > > map.addLayers([layer1,layer2,layer3]) > > map.addLayers([layer4, layer5, ...]) > > ..... > > map.addLayers(LimitiAmmComuni) > > > > > > I have noted that the problem of the "burried popup" arises only with > > the last 14 added layers .. (in fact "Limiti Amm. - Comuni" is the > > last one) > > > > any suggestions?? help?? > > > > many many thanks... > > > > Ivan > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > Users mailing list > > [email protected] > > http://www.geoext.org/cgi-bin/mailman/listinfo/users > > > > > > > > No virus found in this incoming message. > > Checked by AVG - www.avg.com > > Version: 8.5.437 / Virus Database: 271.1.1/2796 - Release Date: 04/07/10 > > 06:32:00 > > > > > > -- > Ryan Williams, GISP > GIS Analyst / Programmer > PAQ Interactive Inc. > 107 S State St., Suite 300 > Monticello, IL 61856-1968 > Office: (217) 762-7955 > Mobile: (217) 722-2794 > [email protected] > _______________________________________________ > Users mailing list > [email protected] > http://www.geoext.org/cgi-bin/mailman/listinfo/users -- Ti prego di cercare di non inviarmi files .dwg, .doc, .xls, .ppt. Preferisco formati liberi. Please try to avoid to send me .dwg, .doc, .xls, .ppt files. I prefer free formats. http://it.wikipedia.org/wiki/Formato_aperto http://en.wikipedia.org/wiki/Open_format Ivan Marchesini Perugia (Italy) Socio fondatore GFOSS "Geospatial Free and Open Source Software" http://www.gfoss.it e-mail: [email protected] [email protected] fax (home): +39(0)5782830887 jabber: [email protected] skype: geoivan73
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