Uttam Rao wrote: > > Hi Thierry, > > Do you think it as a correct way to use SVG for displaying route maps. > If we use jpeg then we send only a small portion of map for a specific zoom > level. When the user moves right of left then the server sends a new map for > the corrosponding position. > But in SVG we are forced to send the whole map irrespective of which > location user is watching. > And its a major band-width problem for us. > > Also zooming feature is not so useful for us because it only magnifies the > same image. But in our case when we zoom we are supposed to show extra > information about that area. > > The biggest problem is when the user explore deeper and deeper in the map. > If a user is viewing a route from one end of the germany to another end we > are forced to send the whole map which covers his route. > > So I am doubtful whether SVG is a right choice for us or not ?
It seems to me that this is precisely the kind of use case that SVG was designed to excel for. One thing you can do of course is attach styling information to the SVG elements, and then change stylesheets based on the zoom level - this will result in differeny degrees of detail being displayed, without needing to regenerate or retransmit the map. I also agree that segmenting the map (into separate tiles) could be useful in some situations, particularly if the original complete map is too big if sent with all the details... you could have a low-res map for low zoom factors, and lots of detailed tiles with styled subelements for the closeup views. -Bill > Please comment on it. > > Regards > Uttam --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
