Hi Donald, Thanks for such a thorough reply.
I am not labeling the features, I am just using a external graphics. As said before, if I dont, and use only the default style, then it renders fine. I dont know if the external graphics has the same behaviour you mention with labels. Is this so ? Best regards, and again, thanks for your explanation. Ricardo 2012/4/26 Donald Kerr <[email protected]> > Having done a good bit of research into labeling in Internet Explorer, > principly with trying to get label outlines working, I can confirm that > there are quite significant differences between the VML rendered in > Internet > Explorer when compared to Canvas or SVG in both Chrome and Firefox; > certainly more than one pixel. I'm assuming that the issues you have are > related to VML and Internet Explorer and are therefore similar to the > issues > I have experienced. > > An example that allows various label alignments is available here: > https://github.com/openlayers/openlayers/issues/366#issuecomment-4824401 > > By changing the querystring, different renderers can be tested in various > browsers showing the position differences. > > VML in Internet Explorer is not only different in terms of label > positioning > (not that critical for me), but it's so slow that renderening any more than > a few tens of features can result in a map page becoming quite unusable > from > a user experience point of view. > > I have to admit that I have not tried IE9 and its SVG engine though I have > spoken to people who say that it is also quite slow. As for positioning, it > has to be better than IE8 and VML. > > Microsoft will support IE8 and XP up to 2020 which means that there will be > no rush for corporations to change to IE9 which cannot be installed in XP. > Their VML flavour is deprecated and there will be no further development. > This leaves me, and others, with serious problems when developing vector > layers and labeling. > > If you are in a position to install and use Google Chrome Frame (GCF), this > effectively takes over the rendering of the page and has a fast javascript > engine with rendering in SVG. I have some very good results using this > within an internal intranet where there is control over the user's browser. > If you're developing for the wider community the you'll simply have to > compromise and ensure that your code makes adjustments based on which > renderer is being used in the various browsers. I certainly cannot find > another way around it. > > I hope this helps. > > Regards, > > Donald > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Andreas > Hocevar > Sent: 26 April 2012 17:36 > To: Ricardo Bayley > Cc: [email protected] > Subject: Re: [OpenLayers-Users] Re: OpenLayers.Layer.Vector shifted in > IE9compatibility mode > > > Is the shift about 1 pixel or more? > > Andreas. > > On Thu, Apr 26, 2012 at 10:35 AM, Ricardo Bayley <[email protected] > > > wrote: > > Ok, but it also happens with IE6. Yet to try IE7 and 8. > > > > > > 2012/4/25 Andreas Hocevar <[email protected]> > >> > >> Probably not the answer you want to hear, but don't use compatibility > >> mode. In standards mode, everything will work fine using the SVG > >> renderer. > >> > >> Andreas. > >> > >> On Apr 25, 2012 1:07 PM, "Ricardo Bayley" <[email protected]> > >> wrote: > >>> > >>> I checked if styling has anything to do with it. > >>> If I dont set any styling, leave default style, then features get > >>> rendered properly. > >>> > >>> this is the styl I use > >>> > >>> var style = function(){ > >>> var defaultStyle = new OpenLayers.Style({ > >>> cursor:"pointer", > >>> graphicHeight: "14" , > >>> graphicWidth : "14", > >>> externalGraphic: "imgs/panoramio-marker.png", > >>> graphicZIndex: 999 > >>> }), > >>> selectStyle = new OpenLayers.Style({ > >>> graphicZIndex: 1001, > >>> graphicHeight: "22", > >>> graphicWidth : "22" > >>> }), > >>> myStyle = new OpenLayers.StyleMap({ > >>> 'default': defaultStyle, > >>> 'select': selectStyle > >>> }); > >>> return myStyle; > >>> }; > >>> > >>> app.panoramio.layer.styleMap = style(); > >>> > >>> FYI: panoramio-marker.png is a 18px X 18px png file. > >>> > >>> > >>> Any ideas ? > >>> > >>> > >>> ricardo > >>> > >>> > >>> > >>> 2012/4/25 Ricardo Bayley <[email protected]> > >>>> > >>>> Hi everyone, > >>>> > >>>> I am trying to load Panoramios pictures. It works great on every > >>>> browser but in IE6, 7, 8 and IE9 compatibility mode features are > >>>> not place properly. Location is shifted. If I select any feature > >>>> and show the popup, then popup is shown in the correct X,Y > >>>> location. > >>>> > >>>> This is the code I user to load panoramios json to the > >>>> OpenLayers.Layer.Vector class > >>>> > >>>> var lyr = app.panoramio.layer, photo, feature, GeoJSON = > >>>> {"type":"FeatureCollection","total":data.photos.length,"features":[ > >>>> ]}; > >>>> for(i=0; i < data.photos.length; i++){ > >>>> photo = data.photos[i]; > >>>> > >>>> if(lyr.getFeaturesByAttribute("photo_id",photo.photo_id).length===0 > >>>> ){ > >>>> feature = > >>>> > > {"type":"Feature","geometry":{"type":"Point","coordinates":[photo.longitude, > >>>> photo.latitude]},"properties":photo}; > >>>> GeoJSON.features.push(feature); > >>>> } > >>>> }; > >>>> > >>>> // Reproject > >>>> var format = new OpenLayers.Format.GeoJSON({ > >>>> 'internalProjection': new > >>>> OpenLayers.Projection('EPSG:900913'), > >>>> 'externalProjection': new OpenLayers.Projection('EPSG:4326') > >>>> }), > >>>> f = format.read(GeoJSON); > >>>> lyr.addFeatures(f); > >>>> > >>>> Any ideas why is this happening ? Is there a workaround ? What I > >>>> dont understand is I have other GeoJSON vector layers which load > >>>> correctly in every browser. Could this have anything to do with > >>>> styling ? > >>>> > >>>> > >>>> best regards, > >>>> > >>>> > >>>> Ricardo > >>> > >>> > >>> > >>> _______________________________________________ > >>> Users mailing list > >>> [email protected] > >>> http://lists.osgeo.org/mailman/listinfo/openlayers-users > >>> > > > > > > -- > Andreas Hocevar > OpenGeo - http://opengeo.org/ > Expert service straight from the developers. > _______________________________________________ > Users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/openlayers-users > >
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