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WhereCampPDX 2009 Keynote - Data Interoperability on the GeoWeb
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James Fee
September 30, 2009
Technology
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WhereCampPDX 2009 Keynote - Data Interoperability on the GeoWeb
James Fee
September 30, 2009
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Transcript
Data Interoperability on the GeoWeb James Fee Evangelist
If Sharing is Easy... http://www.flickr.com/photos/13586721@N05/3122021735/
Why is it so hard to share spatial data?
What about spatial data standards?
Community Driven Standards
Just give me a shapefile
None
portland.shp portland.shx portland.dbf
portland.shp portland.shx portland.dbf portland.prj portland.shp.xml
portland.shp portland.shx portland.dbf portland.prj portland.shp.xml portland.sbn portland.sbx portland.ain portland.aih portland.ixs
portland.mxs portland.atx portland.cpg
portland.shp portland.shx portland.dbf portland.prj portland.shp.xml portland.sbn portland.sbx portland.ain portland.aih portland.ixs
portland.mxs portland.atx portland.cpg
None
None
None
None
Can We Come Up With a Standard?
What would work?
What would work? open database
What would work? open database open symbology
What would work? open database open symbology OGC support
What would work? open database open symbology OGC support platform
support
ESRI’s File Geodatabase
ESRI’s File Geodatabase
So just give me a File Geodatabase
None
None
None
So we need an open spatial database format
None
None
None
I really want to get me some of that!
None
‣ All the benefits of Shapefiles ‣ Open ‣ Easy
to use
‣ All the benefits of Shapefiles ‣ Open ‣ Easy
to use ‣ None of the limitations ‣ Multiple files ‣ Limited field widths
Problems with SQLite?
•No support from ESRI Problems with SQLite?
•No support from ESRI •Still not well known in the
community Problems with SQLite?
SpatiaLite
SpatiaLite •Built on SQLite RDBMS
SpatiaLite •Built on SQLite RDBMS •Just a file
SpatiaLite •Built on SQLite RDBMS •Just a file •Portable -
Works on Windows, Linux or Mac OS X
SpatiaLite •Built on SQLite RDBMS •Just a file •Portable -
Works on Windows, Linux or Mac OS X •Implements OGC Simple Features for SQL
Community Driven Standards
Community Driven Standards Users drive formats
How do we share?
Layer Package to the Rescue
Layer Package to the Rescue
What Works for the Layer Package
What Works for the Layer Package •Compressed format shares well
What Works for the Layer Package •Compressed format shares well
•Includes symbology
What Works for the Layer Package •Compressed format shares well
•Includes symbology •Metadata and preview thumbnails
What Works for the Layer Package •Compressed format shares well
•Includes symbology •Metadata and preview thumbnails •Easy to create with ArcMap
Problems with the Layer Package
Problems with the Layer Package •Uses the closed ESRI Layer
file for symbology
Problems with the Layer Package •Uses the closed ESRI Layer
file for symbology •Some files converted to closed File Geodatabase format
Problems with the Layer Package •Uses the closed ESRI Layer
file for symbology •Some files converted to closed File Geodatabase format •Undocumented
We need symbology with our datasets
Options:
Options: SLD/SE
CSS Options: SLD/SE
None
Put my symbology in a sidecar!
portland.sqlite portland.css
Atom, GeoRSS, GeoJSON
Atom, GeoRSS, GeoJSON SQLite Spatial SpatiaLite CSS for Symbology
Making data discoverable
Spatial Data Can Be
Secure Sensitive Open Spatial Data Can Be
Availability During Disasters
Monetize Where Possible
Picking Formats and Target Audience
Picking Formats and Target Audience Photo used under creative commons
from dotbenjamin
Picking Formats and Target Audience Photo used under creative commons
from dotbenjamin
Citizen Participation San Diego Fires
None
Sharing Large Datasets
Sharing Large Datasets
Sharing Large Datasets
Sharing Large Datasets
So what about vectors?
So what about vectors?
So what about vectors?
So what about vectors? 125 GB
None
None
None
None
Selecting Vectors to Download 1.Zoom to your area of interest
2.Draw polygon for selection 3.Query
Vectors in WeoGeo
Vectors in WeoGeo C o m i n g S
o o n !
What does data interoperability give us?
Breaking Through Stacks
Closed formats should be avoided
None
None
None
None
Archiving Geo Data
How Will People Use Your Data in 10 years?
It Was 1998...
None
James was coding up some cutting edge ESRI MapObjects and
FoxPro Magic
Data Archival Systems: 1999
My Old Computer is Dead
If only I had archived in a non-proprietary format...
Ways to keep this from happening to with your data...
Use Open Formats Use ETL Pray
Fight for your right to use open spatial data standards
Thank You James Fee email:
[email protected]
twitter: @cageyjames blog: http://www.spatiallyadjusted.com
mobile: 480.225.2287