Hi, SVG is scalable vector graphics, see: http://nl.wikipedia.org/wiki/Scalable_Vector_Graphics
and is the default renderer for vector features in e.g. Firefox for OpenLayers. VML is vector markup language and is IE only: http://en.wikipedia.org/wiki/Vector_Markup_Language Depending on your browser requirements, I would suggest looking at the canvas renderer (but no IE support without Google ExCanvas, see http://excanvas.sourceforge.net/). Chris notes here http://trac.openlayers.org/ticket/1512 that it won't do any good for IE performancy anyway since it boils down to slow VML in the end any way. lib\OpenLayers\Renderer\Canvas.js and an example here: http://www.openlayers.org/dev/examples/wfs-reprojection.html Best regards, Bart Abuki wrote: > > rldhont wrote: > >> Abuki a écrit : >> >>> Hello, >>> I´m not expert on OpenLayers and also English (I´m from Czech). >>> I´m just trying to make my own browser-based game and I want to use >>> OpenLayers for world map. >>> Now the problem: >>> I want to put on the base layer some object (coordinates from mysql) >>> represented by png images (eg house) and I do it like this: make polygons >>> (circles), make features and make featureLayer (I dont want use markers, >>> because I would like have the clickable area not always square). Then add >>> control onmouseclick, so i have clickable object - thats ok. But I dont >>> know >>> how to put there a lot of images, the only way I understand is to make >>> image >>> layer for every single PNG image, its ok BUT: When I put in mysql 1000 >>> objects a make this for all of them, it is slow (it takes about 10sec >>> loading and browsing is not smooth), and i´m afraid that this is simple >>> so >>> what if would come something complicated... >>> I dont uderstand mapservers and i want to find the way to not use them, >>> because i will run the game on hosted site, so I cant install it there. >>> Also >>> when I try only vector or images layer alone it was slow. >>> So could anyone help me to get it work faster? And is it possible without >>> mapserver? >>> Thanks >>> Abuki >>> >>> >>> >> The problem comes form the vectorial image (SVG,VML) implementation by >> the browsers. For example SVG with images is slower than div with >> images. If you have more than 1000 objects marker layer is faster than >> vector layer. >> _______________________________________________ >> Dev mailing list >> Dev@openlayers.org >> http://openlayers.org/mailman/listinfo/dev >> >> >> > Thanks for replying, but I cant still understand that. What is SVG and VML.. > And how can I do the same as I done, but faster? > > -- Bart van den Eijnden OSGIS, Open Source GIS bart...@osgis.nl http://www.osgis.nl _______________________________________________ Dev mailing list Dev@openlayers.org http://openlayers.org/mailman/listinfo/dev
