OpenLayers, Layers: Tiled vs. single tile

Posted by Chau on Stack Overflow See other posts from Stack Overflow or by Chau
Published on 2010-05-21T14:53:18Z Indexed on 2010/05/26 19:21 UTC
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Each time we add a new layer to our OpenLayers based website (data provided primarily by a GeoServer server), we discuss whether to use a single-tile or a tiled approach.

Some of the parameters we evaluate are the following:

Using the tiled approach we get:

  • Slow but continuous buildup of the viewport
  • Lots of small images
  • Client side caching possibilities
  • Blocking of the loading pipeline (6 requests at a time)
  • Jerky feeling when navigating during load

Using the single-tile approach we get:

  • Smoother feeling when navigating during load
  • Time delay before layer is loaded
  • One large image for each layer
  • No caching of the single tile

We have a lot of data editing in the layers, thus a tile-cache might not be that efficient.

Are there any best-practices when it comes to tiling?

Progressing towards infinitely fast hardware and unlimited data connections, the discussion becomes irrelevant, but what configuration do you percieve as the most user-pleasing?

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