PrelimAGCStatewideTileSchemaWKID102247.xml

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12-15-2014 06:05 PM

PrelimAGCStatewideTileSchemaWKID102247.xml

Preliminary or proposed NEW "standard" Alaska Albers (Well known ID 102247) cache tiling schema used for statewide ArcGIS Server caching.  Should to be discussed with Alaska ArcGIS Server SIG and general AAUG and Alaska GIS community.  May require additional changed to other services currently available in various GIS shops.

Due to new Alaska Geospatial Council (AGC - formerly know as SDMI) data being delivered as wkid102247 and a finer resolution than previous data, a new cache tiling schema is being reviewed.  Also, with possible implementation of mosaic datasets and Image Server extension, with the combination speeding up the caching process tremendously, additional scales are added.

Proposed cache scale include (14 levels -- should be reviewed and discussed):

1:16,000,000

1:8,000,000

1:4,000,000

1:2,000,000

1:1,000,000

1:500,000

1:250,000

1:125,000

1:63,360

1:32,000

1:24,000

1:16,000

1:9449  (source scale, as delivered to us)

1:5000

- upload and description provided by Rebecca Strauch

for Alaska GIS Users

‌ 12/15/2014

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This is the tile schema I was thinking about a year ago.  It would be nice to have others comment on this and the Alaska AGS-SIG working group can discuss.

(hopefully me making a comment will bring it back to the top of the activity for this geonet place.)

By the way, the "current", pre-AGC/SDMI imagery that I've been using can be found

CurrentStatewideTileSchemaWKID3338.xml

I like the tile schema above. Two years ago (Feb 2014 I have in my notes), at one of our AGS SIG meetings we had a bunch of folks in the room and the take away from that session were the following LODs:

1:16,000,000

1:8,000,000

1:4,000,000

1:2,000,000

1:1,000,000

1:500,000

1:250,000

1:125,000

1:63,360

1:24,000

1:12000

After your work with the data I concur with your choice of  LODs. Having the source scale of the data makes sense on a number of levels,  I'm confident others will agree

Thanks for the feedback Skip. I like the additional scales too.  I'll work on that in a couple weeks, as a test anyway.  Just need to add a few and shift a few files around.  I shouldn't have to rebuild any.

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