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8h
revised Does dissolving features improve geoprocessing efficiency?
tyop
8h
comment Installing ArcGIS for server 10.1 on linux server
Be careful! CentOS is not an Esri-supported platform. I found this out the hard way when a CentOS 6.x security patch released somewhen before 06 Jan 2014 caused ArcGIS 10.1sp1+QIP to stop working (and it corrupted all the services, forcing a complete reinstall/republish). I had to install RHEL 6.x to revive my stricken AGS instances.
18h
answered Does dissolving features improve geoprocessing efficiency?
20h
comment Does dissolving features improve geoprocessing efficiency?
When I speak of "feature size" I'm only referring to the number of vertices. The number of vertices in the largest feature is a likely indicator of the relative storage required for any program unit. Often it's twice the size of the vertex array, since the I/O buffer keeps one copy and the application component keeps another. If you have 40M features running around, the app will need at least 80M to access that feature, and buffering often is based on a factor of the number of vertices (giving space for the sweep of curves). That will use a lot more RAM than 10 4M features.
20h
comment Does dissolving features improve geoprocessing efficiency?
I'm not so sure about the "memory requirements" part. Larger features require more storage. Buffering very complex features is more difficult (and RAM-intensive) than buffering simple features. It's more likely that there's a "sweet spot" between "too many features" and "too many vertices per feature" than making a blanket assertion that dissolving first will always improve buffer performance.
1d
reviewed Approve suggested edit on Working with address data extracted from *.osm
1d
revised How to convert LAS file to ASCII for DSM in SAGA GIS?
!shouting
1d
reviewed Reject suggested edit on Aggregating rasters with GDAL
2d
comment Cannot upgrade User Schema Geodatabase when Master Schema Geodatabase is at previous release?
Can you provide the Python command and geoprocessing request output inside the question? The answer for why ArcGIS thinks you're requesting a user-schema geodatabase upgrade is in the run-time parameters.
Aug
25
awarded  arcsde
Aug
23
answered ArcSDE performance and table changes on upgrade from 9.3 to 10.1?
Aug
22
comment Identifying projection for shapefile with unknown coordinate system, no z values and no measures?
Another victory for "ask the people who gave it to you"!
Aug
22
comment Identifying projection for shapefile with unknown coordinate system, no z values and no measures?
There are an infinite number of possible permutations; this not something which can be scripted effectively.
Aug
22
comment Viewing Esri ASCII Raster file in ArcGIS for Desktop?
What is the problem? How did you use ENVI to "solve the issue"? What do you mean by "all data is not displayed"? (this begs for a screen shot) Since ASCII is an exchange format, but not a display one, what format did you change to, and how?
Aug
22
comment Importing Feature Class to Oracle SDE Geodatabase Simplifies Features
It's no longer possible to create BASIC coordinate reference precision layers with ST_GEOMETRY storage; even if you request BASIC, HIGH will be used instead. I forget if this was a 10.1 or 10.2 feature, but option 1 is not possible. If the coordinate system is correct, then the scale should be set to 1-0.1 millimeters (which is actually too fine for most data); if the coordinate system is wrong (PCS when it should be GCS), then the 1000 xyscale could generate ~111m coordinate resolution.
Aug
21
reviewed Approve suggested edit on 3D visualization of terrain data and orthophoto using GRASS NVIZ via QGIS
Aug
21
comment Importing Feature Class to Oracle SDE Geodatabase Simplifies Features
Yes, certainly, conversion was performed, from FGDB to Oracle ST_GEOMETRY, using Desktop, not something else? Was the FGDB source derived from a CAD drawing? How are you accessing the table, from Query Layer or through a geodatabase connection? What is the coordinate system of this data?
Aug
21
comment Importing Feature Class to Oracle SDE Geodatabase Simplifies Features
Side-by-side presentation, or both layers 50% opaque with diagonal hatches in different directions would make it easier to guess at the problem. You should also update the question to include how you did the conversion, and the storage format of the layer (ST_GEOMETRY, SDO_GEOMETRY, or SDELOB). This may come down to the coordinate reference parameters, but you can start with the coordinate system.
Aug
21
reviewed Approve suggested edit on Recommended approach to integrate GeoNetwork with SQL Server database
Aug
21
answered Opening a featureclass not being the owner of the data in SDE