Hi All, How OpenLayers does google map rendering. I know this is a board question so i will eloborate
I am using OpenLayers for all my webGIS projects as the renderer/viewer. What ever i do with my data. I display the results using OpenLayers. Recently I need to display shapefiles and apply styling to it. I have a set of existing tools for it 1.OpenLayers can display shapefiles on browser using OpenLayers.Layer.WMS(....) 2. Mapserver I need to create a mapfile and configure it to use some shapefiles. Both the cases didnt worked for me because I need it to configure mapfile/WMS when the user add a new data and I dont have any control over its projection and other informations The users will be uploading their shapefiles (I am reading shapefiles using GDAL/OGR over web so its not a big deal to render any OGR supported vector data ) and they can view it directly on browser. He/She can apply different map styling dynamically. Basic viewing features such as zoom/pan are supported.He can also export the map view to a file and download it for free. The whole application called LSI Viewer will be released under OpenSource soon.. To get a better feel try this lsi.iiit.ac.in/lsi/lsiviewer http://vihang-lvs.garudaindia.in/ (same app on CDAC cloud) I said about lsiviewer so that you can understand my needs clearly. Now you will be clear why I cant rely on OpenLayers I can also render WMS maps in LSIViewer. Now I want to show google, OSM, Bing Maps in the viewer. Here I need help from OpenLayers developers. How google maps are rendered in OpenLayers using Google API? Using FireBug I found that some image is retrieved from google by the API http://khm0.googleapis.com/kh?v=107&hl=en-US&x=368&y=231&z=9&token=64080&style=api%7Csmartmaps when I read this URL I get an 256x256 image. How to form such kind of url if we have only google api ? I guess OpenLayers also get individual tiles from google maps server and render it on map canvas. Is this correct? If yes, How to get those individual tiles? Any help is very much appreciated. Thanks in advance -- Regards, Rashad
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