[OpenLayers-Dev] ArcGIS server 9.2 support for OL

[RajC]

Hi Matt

I am trying to overlay AGS created cache layer over a KaMAP created Cache
Layer of the same data set.
However, even after following the tips in this forum, I am unable to get
them lined up.
The AGS layer is not lining up at the correct coord position. I have
generated the AGS cache and set the layer creation with the right extent and
tile origin.

Though your e-mail is dated May 16 2008, Hopefully May I seek your help in
trying to resolve this?
If so I can provide more info on my problem.

RC


mpriour wrote:
> 
> We have actually used it in 2 applications to great success. Though we did
> have to get some help from the author to properly configure some of the
> parameters on a near polar projection system.
> There was no significant difference in performance between this and any
> other pre-rendered tile retrival layer.
> Matt Priour
> Kestrel Computer Consulting
> 
> 
> Christopher Schmidt-4 wrote:
>> 
>> On Fri, May 16, 2008 at 07:38:26AM -0700, Yeroc wrote:
>>> 
>>> Hi...
>>> 
>>> 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.
>> 
>> -- Chris
>> 
>>> Thanks,
>>> Corey
>>> 
>>> 
>>> 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
>>> Sent from the OpenLayers Dev mailing list archive at Nabble.com.
>>> 
>>> _______________________________________________
>>> Dev mailing list
>>> Dev at openlayers.org
>>> http://openlayers.org/mailman/listinfo/dev
>> 
>> -- 
>> Christopher Schmidt
>> MetaCarta
>> _______________________________________________
>> Dev mailing list
>> Dev at openlayers.org
>> http://openlayers.org/mailman/listinfo/dev
>> 
>> 
> 
> 

-- 
View this message in context: http://www.nabble.com/ArcGIS-server-9.2-support-for-OL-tp9691195p19427131.html
Sent from the OpenLayers Dev mailing list archive at Nabble.com.