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52
votes
7answers
4k views

What are some best practices for managing large amounts of geospatial data?

How do you manage your geospatial data? I have terabytes of data spread out over hundreds of datasets, and have an ad-hoc solution using symbolic links within projects which link back to an ...
14
votes
2answers
942 views

What is the best practice for data management? [duplicate]

I have always been curious how other folks are storing their spatial data. Outside of an enterprise environment where much data is stored in enterprise geodatabases, is it better to store data per ...
10
votes
4answers
3k views

Best practicies when employing a file geodatabase that is going to be used and edited by multiple users?

I have a file geodatabase that contains 3 feature classes in it and each feature class contains a lot of data that will be viewed and edited daily by 6 other users. I am looking for any advice from ...
10
votes
1answer
282 views

Open-source software for managing terabytes of different formats of geospatial data?

I have a problem that I am sure many GIS Teams or Departments have which is how to find, keep track of and manage multiple different datasets from multiple sources. I have read the responses from a ...
9
votes
4answers
631 views

How do you manage existing GIS data and allow for integration with an Asset management system?

I am using ESRI based GIS software, Postgresql/PostGIS/ArcSDE DB and we have a Mincom Ellipse asset management system. Currently our all our spatial information regarding asset sites have been ...
9
votes
2answers
218 views

Tools to compare unversioned copies of geospatial data

My office has about 100 GB of geospatial data of varying forms (imagery, feature classes in geodatabases, LIDAR, tables, etc) that have gone somewhat unmanaged for the decade during which they were ...
8
votes
1answer
355 views

What qualifications should an auditor have if they plan on auditing a GIS?

Background summary: Various systems are being audited and GIS is the next to be audited. The initial kick-off for the audit was a meeting between me and a single auditor. Initially, I thought it was ...
7
votes
1answer
951 views

Removing rows in shapefile in R

I've imported a shapefile into R, and joined it to a table. My shapefile contains all the census ids, while my table only contains selected census ids. I'm now trying delete all the rows didn't get a ...
7
votes
3answers
486 views

How to Receive an Email after a script has run?

I'm working my way through my first attempt at scheduled tasks with modelbuilder and python. So far I have: Created a model that reconciles our SDE versions and then compresses the database. ...
6
votes
1answer
171 views

When to use multiple geodatabases?

I'm working on a project involving one database , but the customer's needs have evolved, so he needs to manage multiple projects. I tried to work with adding an id for each project, which gave me more ...
4
votes
1answer
298 views

Sort by geometry using INHERITS?

hope everyone's doing well. I have a statewide point data set (parent table: 600K rows, 500 columns) I need to analyze at multiple scales based on several different spatial divisions. I'll also need ...
4
votes
1answer
231 views

How to limit the number of items to enter metadata on when importing from GeoServer into GeoNetwork

We are a library looking at using GeoServer and GeoNetwork as the basis of a GIS repository/catalog. When we enter layers in GeoServer and then harvest using GeoNetwork, we end up with a large number ...
3
votes
5answers
1k views

When a raster is clipped to a polygon with Python, why does it still take on the extent of the entire shapefile?

I am clipping a raster image to each polygon row in a shapefile in ArcMap 9.3 using the Clip tool (Data Management) in Python with Clipping Geometry set. While the clipped raster successfully depicts ...
3
votes
2answers
496 views

TIGER/Line processing

Does anyone know of scripts for merging TIGER/Line shp files? It is for extracting the road features only, but for the whole of USA. They are provided as shp files for one county at a time here: ...
3
votes
1answer
102 views

How to recategorize features in GRASS by geometry, like the ArcGIS Sort tool?

The ArcGIS Sort tool creates a new feature class with features sorted by geometry. For example, it can number features IDs from north to south, etc. Is there a way to renumber the cat field in a GRASS ...
2
votes
4answers
139 views

Append operation in ArcGIS

I have 250 road shape files, I have to append all the 250 shape file into one single file. I have used ArcGIS append tool for combine layers (if number of shape files are minimum), but these 250 ...
2
votes
5answers
1k views

“XY to Line” not converting all 58,000 records

I have a dbf (and xls) that contains ~58,000 records of latitude and longitude for both start and end points. I would like to connect each XY coordinate pair using the XY to Line tool found inside the ...
2
votes
2answers
787 views

Is there a browser/management view in QGIS?

Is there a browser/management view in QGIS 1.8 so that I can manipulate shapefiles and others (such as geo tiffs, etc.) like in ArcCatalog? Maybe a plugin? Right now I have to use my system's file ...
2
votes
2answers
208 views

How to split lines at vertices in ArcGIS for Desktop with Basic level license?

Is there a way to work around splitting lines at vertices in ArcGIS for Desktop without an Advanced level license? I don't have the advanced license and I have a model that uses this tool. If need ...
2
votes
5answers
248 views

GIS software to manage assets

How do you manage the following projects (i.e. what GIS software / platform would you use)? An extensive Footpath Construction & Renewal Program Improved drainage systems at x Street, y Street, ...
2
votes
2answers
69 views

cutting and extending one polygon layer in function to the other layer boundaries

I'd like a methodology that can edit my vector layer, extending and cutting the features in the polygon layer "cap_agricola" within the boundary layer "sp_edr", I would like to solve this problem in ...
2
votes
1answer
75 views

How do I select all polygons in a layer that border 2+ polygons in the same layer?

My data consists of equal-sized polygons. I need to identify and select all the polygons that border two or more polygons.
2
votes
1answer
222 views

Create a subset of a dataset with a specific grid size in ArcGIS using Data Management Tool

I am wondering how you can create a subset of a dataset that is a specific grid size (in pixels) using the Clip tool within the Data Management Tool box for raster data. I was trying to find a hint ...
1
vote
1answer
2k views

Merge adjacent polygons ArcGIS

I want to use ArcGIS to merge adjacent polygons with each other. There is no common filed between the polygons and hence the Dissolve tool is not the ideal solution. The polygons that I want to ...
1
vote
1answer
183 views

Data management in GRASS from command line?

I'm trying to import a large set of raster files into GRASS. The GUI import tool works fine for a handful of files, but it appears to require that I click the "Layer id" checkbox for each individual ...
1
vote
0answers
45 views

Managing outages to make ArcSDE updates?

I would like options to manage ArcSDE outages for making updates to schema, which I am not able to do when users are just reading the feature classes. I would like to not have to stay late to get ...
1
vote
0answers
75 views

How to track raw data deliveries and determine when all input data has been delivered and is ready for processing [closed]

When working with large amounts of raw input data for your analysis, how do you track data from different sources and covering different geographic extents to determine when you can proceed with the ...
0
votes
1answer
26 views

Error in Creating Line from Points

I am trying to create coastline of an area by joining about 20,000 points using Data Management Tool "Points to Line" in ArcGIS 10.1. But it seems that the inbuilt algorithm is not recognizing the ...
0
votes
1answer
26 views

Multiple vertices after editing giving wrong start and end x, y co-ordinates

I have a small problem which I have been fighting to solve but in vain. Initially I generated some polylines across the river at various locations. I found some of them are smaller in size and not ...
0
votes
1answer
209 views

Alternatives to Windows Explorer and ArcCatalog when copying a file gdb

I need to copy a file gdb from my local machine to a server using a remote desktop connection. I have been doing this using a simple copy/paste operation in Windows Explorer. I know that it is best ...
0
votes
0answers
18 views

Which is the best disaster management application ? [on hold]

Can anyone suggest the best disaster management application open source or/and commercial . which also can connect to smartphones such as android/ iphone etc
0
votes
0answers
306 views

Bearing Distance to Line tool from dBASE table only draws one line in ArcGIS 10

I am using the Bearing Distance To Line tool to draw geodesic lines to points defined by a bearing and distance. This is an aside, but I will then use the Feature Vertices To Points tool to convert ...