This tag should only be used for questions concerning the ArcGIS Platform from Esri (as a whole). Try wherever possible to use a product tag such as arcgis-desktop, arcgis-server, arcgis-mobile or arcgis-online on conjunction with a version tag such as arcgis-10.1, arcgis-10.0 or arcgis-9.3.

learn more… | top users | synonyms

7
votes
2answers
520 views

Where can I find a shapefile basemap for the Indian Ocean?

I need to plot point data over a basemap of the Indian Ocean. Can anyone tell me where I can find such a basemap in shapefile format? I use ArcView 9. Thank you.
7
votes
5answers
2k views

Calculate distance in km to nearest points (given in lat/long) using ArcGIS

I have two point datasets in ArcGIS, both of which are given in WGS84 lat/lon co-ordinates and the points are spread across the whole world. I would like to find the nearest point in Dataset A to each ...
7
votes
3answers
204 views

ArcGIS data capacity

For any ArcGIS users, how large of a dataset (in terms of number of records) can ArcGIS comfortably render on the screen at once? For example, if I have an excel spreadsheet with 15k records, will ...
7
votes
3answers
2k views

Managing ArcGIS floating licenses

How do you manage your ArcGIS floating license pool? I have to field several calls a week, or sometimes a day, from staff wanting to be able to check out Spatial Analyst or ArcInfo but they can't ...
7
votes
1answer
383 views

Reduce extent of raster processing

I need to reduce the processing extent of my raster by some sort of automatic procedure in python. Currently the borders of the dataset I've been using has anomalies (due to the classification of the ...
7
votes
2answers
723 views

Locked/Uneditable Map Document

I am wondering if its possible to create a locked map document? I have a document that multiple users will be accessing and as a way of preventing them from making any accidental errors, am wondering ...
7
votes
2answers
508 views

Is it a bad idea to hold references to ArcObjects inside business classes?

According to best practices is it a bad idea to cache features and geometries inside business objects? If it is bad, what is the alternative way? References to features may be replaced with their ...
7
votes
4answers
5k views

Best book for learning ArcGIS functionality?

I was wondering what the best book(s) for learning how to use most of the ArcGIS functionality were that I could use in conjunction with books on the theory of GIS since even though I can understand ...
7
votes
3answers
416 views

How do I figure out if there are clusters of one set of points around another set of points from a different layer?

I want to see if there is clustering of a certain type of buildings (x) around another type of buildings (y). The two point files are in different layers. I cannot figure out which tool I would use to ...
7
votes
2answers
818 views

Is it possible to emulate “Swiss style” shaded relief with ArcGIS tools?

Is there a way to create a Swiss style (or other hand-shaded-like styles) shaded relief from a dem using ArcGIS tools alone?
7
votes
3answers
3k views

How to analyze differences between two shape files and put results into a new shape?

I have two polygon shape files of the same region from two different years (1985 and 1997) and I need to analyse the differences between the two shapes resulting in a third polygon shape file ...
7
votes
1answer
209 views

Ternary Legends - how to represent in Arc

I've got a composite image built up from Red Green and Blue composite colours. Each channel represents the differing concentration of a different variable in each location - with 0 being the lowest ...
7
votes
2answers
302 views

Using ArcGIS to filter cells where 7 or 8 of the neighbors are different

I have land cover data that I would like to clean using some generalization tools. Majority filter does almost exactly what I want, but is missing one key option. Majority filter allows you to change ...
7
votes
3answers
821 views

python script error- with GetParameterAsText

I have a seemingly simple code which iterates through a list of feature classes and calculates an ID field in the attribute table that is equal to the first 5 characters of feature class name. The ...
7
votes
3answers
4k views

How to export multiple featureclasses to shapefiles?

I have plenty features in a geodatabase. I need to save/export them into shapefiles, because my mate works with Manifold, which is not able to read geodatabases. Any Ideas? Click on every single layer ...
7
votes
1answer
864 views

Inserting newlines in Rectangle Text elements via ArcPy causes overlap

I ran across an issue the other day when I tried to use ArcPython's mapping module to edit rectangle text elements with newlines (\n) in an ArcMap document. Here's what the output looked like: ...
7
votes
1answer
1k views

How do we add a custom basemap in ArcGIS.Com that can be used in Javascript API?

It's possible to add a layer as a basemap in ArcGIS.com by checking the check box use as baselayer: But when I consume the map using: var mapDeferred = esri.arcgis.utils.createMap("<guid>", ...
7
votes
3answers
1k views

How to create TINs in ArcGIS from triangular elements

I am working with FEM models with triangular elements, and I'd like to view the results as TIN surfaces in ArcGIS (and in ArcScene). In my external source, I have nodes (with X,Y,Z coords) and ...
7
votes
4answers
5k views

'Import arcpy' error (RuntimeError: NotInitialized) when using IDLE

ArcGIS Version: ArcGIS 10, Python 2.6.5 Machine: Windows 7 64bit (Intel) I'm receiving the following error when importing arcpy using the the IDLE (gui and cmd prompt) and when using pythonwin. I ...
7
votes
4answers
139 views

How do you programmatically read the coordinate display format in ArcMap?

I'm looking for a property (or properties) that will give me the display units and the formatting. I assume I need IMap.DistanceUnits but I can't find the formatting. Is this exposed? I am also ...
7
votes
1answer
629 views

Why does ArcGIS copy & paste layer in a TOC sometimes change the Data Source of the layer?

I run into this situation all the time; I often just copy layers and groups of layers in the TOC of one Map Document and paste then into the TOC of another Map Document. For the most part this ...
7
votes
1answer
1k views

How to get ArcGIS Templates in VS2010

I have a work computer which has ArcGIS desktop installed first and then VS2010 (just the way IT does it) and then templates are not available, anyone know what I need to do to see the templates? I ...
7
votes
1answer
1k views

Edit End Points in Polyline (Python/ArcMap10)

I am trying to make a polyline endpoint snapping tool in python. using a Search Cursor I read in the values to an array of line objects (which contain the feature id of the line, and two "EndPoint" ...
7
votes
6answers
1k views

How to split a polygon into quadrants?

I have a Alberta province (Canada) section polygon shapefile in GCS_NAD83 with 255,000 polygons. I like to split each section into 4 equal quadrants (NW, NE, SW, SE) The Alberta province has ...
7
votes
3answers
1k views

Counting points along a polyline at a given distance of every 40 Ft

I've got a polyline representing a pipeline and have a pig run that has metal loss. I am going to create a points shapefile in ArcMap 9.3.1 of the metal loss locations along the pipeline but want to ...
7
votes
3answers
1k views

Poor image quality of raster pyramid files in ArcGIS (no anti-aliasing)

There are several GeoTIFF files (size ~7000x7000 px) which I try to open in ArcGIS Desktop 10.0. I have already created raster pyramids for them (.ovr files) using geoprocessing tool but their quality ...
7
votes
3answers
3k views

ArcSDE - Is there an automated way of releasing all layers locks?

We have an issue where users do not close ArcGIS and layers get locked, and sometimes this affects our nightly updates for some of the layers. I know you can individually remove a lock using the ...
7
votes
3answers
742 views

E_FAIL when calling ESRI.ArcGIS.Carto.IImageServer.Initialize()

I am using ArcGIS Engine and Developer Kit 10 on Windows 7. Specifically, I'm writing an ArcObjects console program using Visual C# Express 2008. I am attempting connect to an image server via a URL ...
7
votes
2answers
487 views

How “complex” should a JavaScript map become? When does a plugin make more sense?

Background: A client is looking to upgrade an ancient ArcIMS site, which is quite complex. It has a table of contents, the ability to change symbology on-the-fly, print the map, use spatial ...
7
votes
2answers
3k views

SELECT TOP query in ArcGIS

Is there a way to use a SELECT TOP (n) within ArcGIS desktop? Is appears that since the ArcGIS query builder is effectively building the SQL statement after the WHERE clause, that this may not be ...
7
votes
4answers
2k views

Symbolising One-to-many relationships

I have a polygon feature class which has various extent areas with a name which is unique I also have a table (in an FGDB) that has the extent names with a score value. But there can be many score ...
7
votes
2answers
1k views

ArcGIS 9.3 Mapbook

I'm looking for a product that will produce multiple pdf plots of mapsheets specified by a shapefile key (say, 11 x 17) from ArcGIS using a single .mxd template, include and orient a common keymap, ...
7
votes
2answers
390 views

Data-type detection in ArcGIS table loading

When adding tables layers from Excel files, ArcGIS attempts to guess the data-types: Microsoft Excel does not enforce field types for values during data entry like standard databases do. ...
7
votes
1answer
2k views

Creating ArcGIS add-ins for both 10.0 and 10.1

Has anyone tried to deploy the ArcMap add-in for both ArcGIS 10.0 and ArcGIS 10.1? There is a target version parameter in the add-in config XML file that needs to be specified. After upgrading the ...
7
votes
1answer
436 views

How to simulate moving vehicles?

I have a point layer (stored in SQL Server 2008) that is being served up by a map service in ArcGIS Server 10.1. I am consuming this service in a web client. Lets say the points are boats out at ...
7
votes
2answers
254 views

How to remove long linear strips from polygons?

I have a polygon layer representing impervious land cover. This was taken from a land cover raster dataset. The impervious data represents all impervious surface that is not buildings or roads. I ...
7
votes
1answer
175 views

Need monthly weather means for future climates

I am trying to generate spatially downscaled (5-10 arcminutes) future climate maps indicating monthly mean min and max temp, and precip. Most people usually need to extrapolate monthly data into ...
7
votes
3answers
2k views

How to make custom, dynamically generated vector symbols in ArcGIS

I am putting together a map of GPS-enabled vehicles, and I am hoping to display them with custom point symbols that change appearance based on a few attributes (things like velocity, heading, and a ...
7
votes
1answer
219 views

Efficient Network Neighbors?

I would like to identify the Kth order neighbors of an edge on a network, specifically the neighbors of a large set of streets. For example, I have a street that I'm interested in looking at, call ...
7
votes
1answer
294 views

Can I use GRASS algorithms in Sextante under ArcGIS?

Sextante for ArcGIS comes with SAGA modules. I know that I can use GRASS algorithms in Sextante under gvSIG. But how can I use GRASS algorithms in Sextante under ArcGIS? I tried to look for any ...
7
votes
1answer
2k views

Permanently Change ArcMap's “Maximum Sample Size” Setting?

I've lately been working on feature classes with a huge number of polygons (e.g. all of the Census blocks within the Chicago metro area). I've been needing to symbolize them by quantities a fair ...
7
votes
1answer
728 views

How to work within ArcGIS image server export limits?

I need to clip out a region of an arcgis image service that is larger than the export limit. I'm not trying to defeat copy protection or anything of that nature. The data is from a service belonging ...
6
votes
4answers
1k views

How to find dead-ends in a road network

I'm trying to remove all the dead-end roads in a road dataset (lines) that are less than 100m long. How do I identify roads that are dead-ends (no exit)? The 100m part is easy. I know how to use Arc ...
6
votes
5answers
4k views

ArcMap, ArcCatalog very slow to open on a new laptop with ample resources

I have a recent installation or ArcGIS Desktop on a 64 bit Windows 7 Machine, with 8GB ram, intel core i7 processor, and a solid state drive. It takes ~2 min to open either ArcMap or ArcCatalog from ...
6
votes
3answers
15k views

How to dissolve overlapping polygons?

I have a query regarding the dissolving of polygon features in ArcGIS 9.3. I only have the bare-bones license and an extremely basic knowledge of VB. I have a large shapefile with around 4500 ...
6
votes
2answers
1k views

Valid feature class, table names in ArcGIS

hi What are valid rules for name of feature class or table in ArcGIS. Is there any supporting document some body know which can explain all the limitation in ESRI platform. In ESRI support site i am ...
6
votes
4answers
1k views

Raster to Polygon Scripting Problems

I am trying to make a script which selects every .png file in a folder beginning with the letters "LG". I then want the scipt create a shapefile, replacing the "LG" with "SH", and then i want the ...
6
votes
4answers
2k views

Are there any issues to be aware of running ArcGIS on a Mac?

I'm considering upgrading the PC to a MacBook Pro and installing Parallels, and would like advice from other ArcGIS Desktop users who have done this. The performance aspects of VM-ware are considered ...
6
votes
4answers
4k views

Field Calculation - Python - If/Then over multiple data columns

I have some VB code saved that looks at two columns of data, and populates a third with the low value. Pre-logic Script Code: Dim output as double if [MIN_LEFT] < [MIN_RIGHT] Then output = ...
6
votes
3answers
1k views

How can I select vector features that overlay raster in arcpy?

I have two datasets: point feature class and raster (stored in file geodatabase). The spatial extent of the raster is smaller than the point dataset. Is there a way I could select (or create new, ...