[OpenLayers-Dev] ArcGIS server 9.2 support for OL
crschmidt at metacarta.com
Fri May 16 11:37:29 EDT 2008
On Fri, May 16, 2008 at 07:38:26AM -0700, Yeroc wrote:
> Did this patch make it into OpenLayers? I'm interested in this
> functionality and wonder if it's now a standard part of OpenLayers and if
> not, why not? I didn't see any followups to this initial email...?
I never had a server I could test against, or anyone who confirmed it
worked other than stvn, and with only that reassurance, I wasn't
prepared to put it in trunk.
It was in a sandbox of stvn's somewhere, I think, but I don't know
where. The FAQ might mention it.
> Steven M. Ottens-3 wrote:
> > Hi all,
> > With some help of Chris I've managed to access the tiles generated by
> > ArcGIS server 9.2.
> > There's a public accessible server at:
> > http://serverx.esri.com/antialiasingexamples/
> > ArcGIS server stores its prerendered tiles in a directory structure
> > similar to TMS:
> > layername/zoomlevel/rownumber/columnnumber.filetype:
> > http://serverx.esri.com/arcgiscache/DG_County_roads_yesA_backgroundDark/Layers/_alllayers/L03/R0000147b/C0000138d.png
> > It also has an XML providing some extra data:
> > http://serverx.esri.com/arcgiscache/DG_County_roads_yesA_backgroundDark/Layers/conf.xml
> > The row number and column number are stored in hexadecimal and are
> > calculated from the TileOrigin (upper left).
> > attached is a zip with two files and one patch:
> > ags2.html goes into examples and provides an example with the data of
> > above mentioned site
> > AGS.js goes into lib/OpenLayers/Layer and provides the logic for the
> > tile-url calculation
> > openlayers.diff adds AGS.js to OpenLayers.js
> > There's one major issue: you need specify the correct maxExtent to make
> > sure that no tiles are requested outside the realm of the cache. Also
> > this maxExtent should be a perfect fit for the tiles otherwise a weird
> > offset is shown when zooming in and out. (I haven't calculated the
> > proper extent yet, so one can see this erratic behavior).
> > Regards,
> > Steven
> View this message in context: http://www.nabble.com/ArcGIS-server-9.2-support-for-OL-tp9691195p17276333.html
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