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.

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9
votes
4answers
2k views

Programatically split a polygon with a line

In looking at this question, it occurred to me that I am not sure how one would go about using geoprocessing tools in ArcGIS to split a polygon with a line programatically. Manually, you would use ...
8
votes
5answers
5k views

How do you deal with broken MXD\LYR paths?

In relation to this question, In the past, whenever I cleaned up a bit and moved layers around (or changed their names) my MXD's paths were broken and it was one pain-in-the-arse to correct them. ...
8
votes
4answers
5k views

How do I cleanly uninstall ArcGIS 9.3.1 extensions after ArcGIS 9.3.1 is uninstalled?

I uninstalled ArcGIS 9.3.1 (server, desktop, engine), then installed ArcGIS10.0 (Server, Desktop, engine). When I tried to uninstall some arcmap extensions, I got error 1001 "unable to get installer ...
7
votes
3answers
537 views

How can I make a county-level shape file from a set of points at 30 x30 km spacing?

I have a data set in csv form, like: latitude, longitude, value -45, 45, 10 .... I would like to calculate county level means from these data, using either ArcGIS or R+grass. I have the ArcGIS USA ...
6
votes
3answers
1k views

Reconcile a Versioned Geodatabase with only the DEFAULT version

Follow up to this: Spatial Database Connection String I am trying to reconcile a versioned geodatabase that has only one version, DEFAULT. I am following the steps from the ESRI documentation: A ...
6
votes
1answer
779 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: ...
6
votes
3answers
4k views

Find the nearest raster cell value based on a vector point

I have two layers in ArcGIS: One is a vector point and the other is a raster layer. I want to append the value of the raster data grid to the vector point. The problem is the vector point is away from ...
5
votes
2answers
754 views

How to implement bivariate Ripley's K function in ArcGIS 10?

The attached image shows a forest gap with red pine represented as circles and white pine represented as crosses. I am interested in determining if there is a positive or negative association between ...
5
votes
5answers
2k views

Volume of water in a basin with reference to incremental height of DAM

I have a DEM of my area. I did watershed analysys with archydro. I want to calculate "Volume of water in a basin with reference to incremental height of DAM" Is there any method, tool to give output ...
4
votes
2answers
206 views

adding large amount of data [arcgis 9.x javascript api]

I've got problem, I'm creating map based application, and now I have to add to map about 100 000 graphic points, from coordinates. I was trying in many ways to do it, but always process of adding ...
4
votes
3answers
3k views

Splitting lines automatically at specific distances?

I have a set of polylines I need to split at varying distances from their starting points. In general I'm looking for a something similar to the SPLIT function within the editor tool. There it is ...
4
votes
1answer
436 views

How does cost allocation work?

Why, when I use the cost allocation function of Spatial Analyst, is space not allocated in all input source locations (as shown in image below)? In particular, the input raster has 18 spots while the ...
4
votes
1answer
674 views

Stream Gradient - Assigning points to their respective Reaches

This is a continuation of the question I initially posed here. Also, I've attached a shapefile on my db account here. I'm trying to break a stream network up into 100m reaches, assigning elevation ...
3
votes
1answer
236 views

How to make survey lines within a polygon?

I am trying to figure out how to make survey lines within a polygon. So first I make a polygon. Now I need to fill this polygon with lines, where I can choose the spacing between the lines, and the ...
3
votes
2answers
916 views

Accessing ArcGIS layers from seperate thread

I've got an ArcEngine application, referencing a MXD for it's data (and map display). I'm running a query against all layers, so can take quite some time. I would normally run the query in a ...
3
votes
6answers
873 views

Measuring data load and redraw times in ArcMap

Rephrasing of the question slightly to address some issues. Is there are standard way of measuring load times for data, specifically sybolised data, within ArcMap? In particular, we're comparing ...
2
votes
4answers
951 views

ArcInfo Grid ASCII to ESRI Shapefile conversion

I have an ArcGIS grid ascii file (Ramankutty Cropland at 5 minute resolution) that begins as follows: ncols 4320 nrows 2160 xllcorner -180 yllcorner -90 cellsize ...
2
votes
2answers
538 views

Python problem in conditional combining of multiple rasters and produce one output

I have two rasters for same spatial extent and need to compare both rasters cell by cell and produce one output raster. Each has 10 land cover classes. Based on those 10 classes the comparison should ...
2
votes
1answer
717 views

How to use multivalue output parameter with ArcPy

How can I use a multivalue output parameter with ArcPy? Please give an example. Thanks,
2
votes
1answer
982 views

ArcGIS Server WMS GetFeatureInfo tolerance

is there a way to specify pixel tolerance when requesting feature info via GetFeatureInfo WMS request for an ArcGIS Server WMS-published map service? I have not been able to find any such information ...
2
votes
1answer
625 views

ArcGIS topology rules file (.rul)

Has anyone converted ESRI's topology rules file (.rul) into another format? I built a complex topology rules set and would like to QC it in something easier to read and work with than ArcCatalog. A ...
1
vote
1answer
616 views

How to Delete Records from a Feature Layer?

I am trying to delete some records from a feature layer, but I kept getting the error of invalid parameters from the errback. Below is my code: function deleteRecords() { var incidentId = 2; var ...
1
vote
1answer
278 views

ArcGis Rest – service name vs. folder - Are the folders always part of the service name?

I'm using an ArcGIS REST map service, and my question is how do I construct the URL to the service? Specifically, what relationship is there between the Service Name, the Test Server, and the folder ...
1
vote
2answers
7k views

How to calculate Raster Area per Polygon?

In ArcMap, I have a raster file that contains 6 classes of landcover and a shapefile that is the census data (OA boundaries and their population). I want the area of each class in each OA? For ...
9
votes
9answers
12k views

Is it possible to expose Google Maps as background map through ArcGIS server?

I am doing a (non commercial) project where the client doesn't have the budget for purchasing map data like that provided by TeleAtlas. They only need map data for a background map, and they'd like to ...
7
votes
2answers
1k views

Create “Inner Buffer” in ArcGIS

I am currently searching for a possibility to create an "Inner Buffer" in ArcGIS. I have a lot of polygons (houses)(in one feature class) and one big polygon (in one other feature class). I want so ...
6
votes
1answer
351 views

Why are annotation features containing both GraphicElement and TextElement objects not drawing in an ArcGIS Server map service?

I am building annotation features with Python/comtypes/ArcObjects. The annotation works great in ArcMap (10.1), but it is does not draw when published to a map service in ArcGIS Server. Each piece ...
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 ...
5
votes
2answers
1k views

Retain ESRI symbology in Mapinfo TAB

Is there anyway to retain/easily transfer symbology from ESRI to Mapinfo? The only process I found was posted in 2010 - https://groups.google.com/group/mapinfo-l/browse_thread/thread/883223ff4ae56809 ...
5
votes
5answers
4k views

How to split a shapefile into separate files for each feature?

I have a polyline shape files with about 20 kinds of roads. I would like to know how can I create automatically a vector file for each one. I can use Arcgis, Qgis (or Gdal separately). thanks!
5
votes
1answer
355 views

How to create a field with a specified slope projecting from a 3D polygon

Im trying to figure out how to create a elevation raster from a known location (3D polygon) that projects at a specified slope (1%) for a specified distance(1-2 km). Does anyone have any idea how to ...
4
votes
1answer
6k views

Adding Layerfiles (.lyr) to Qgis

at college we're using ArcGis at the moment, but sadly ArcGis 10 doesn't function on my Mac! So as I already have QGis on my computer, I just want to do my exercises with ist, but we do use .lyr files ...
4
votes
1answer
408 views

Need to delete all but one feature from a set of features with the same ID, keeping the one with the largest area

I have a large polygon layer in which most of the polygons have a unique name in a text field. Of the hundreds that aren't unique, there will be 2-4 polygons with the same name but different ...
4
votes
2answers
2k views

Simplify Raster Contours ArcGIS 10

Does anybody know a way to simplify a number of contour polylines derived from a raster dataset? I need to generate a map that shows contour polylines at relatively small scale. With the contour ...
4
votes
2answers
2k views

hardcoding port number in Arcgis License Manager

In the Arc10 Q&A for the 2011 user conference it says a performance gain may be realized by hardcoding the license manager to port 27000, and then instructing the firewall and Windows Defender to ...
4
votes
2answers
935 views

Net Primary production (NPP) calculation

When I calculate Net primary production (NPP) for a local scale, what kind of software should I use? I always use ENVI, ERDAS, ARCGIS and IDRISI. Is it possible to use these programs for NPP ...
4
votes
1answer
993 views

How do I get the count of NoData values in a raster?

I have created a raster in ArcGIS 10 with a large number of holes (NoData) in it. I want to fill the holes using something like the the following: rOut = arcpy.sa.Con(arcpy.sa.IsNull(rGround), ...
4
votes
2answers
559 views

comparing two TINs

i have the following two files: 1) LiDAR las file1 2) Let's give it a name LiDAR las file2, contains the same file1 data, where number of points randomly removed. So if file1 contains X number of ...
4
votes
5answers
10k views

For every point, distance to nearest polygon of type X?

In ArcGIS how might one calculate as an attribute value the distance to the nearest polygon of type X? Say we have a point layer of wildlife observations and we want to know how far each of them is ...
4
votes
2answers
981 views

compound variables in model builder?

I'm trying to create a model wherein one of the parameters is a compound variable, that is made of multiple variables joined together. How can this be done? For Example: Create an insider buffer ...
4
votes
2answers
3k views

Any idea how to resolve “ImportError: No module named arcgisscripting”

I am trying to run a ESRI python script from eclipse and get the following message: "ImportError: No module named arcgisscripting" I can run this in IDLE... any ideas?
3
votes
3answers
443 views

How to perform a join on simultaneous spatial and attribute criteria in ArcGIS?

I have two point layers and want to perform a spatial join on nearest distance. Normally it is easy with ArcMap. But now I have a restricting condition on the spatial join. The restriction only ...
3
votes
2answers
688 views

“Select by Location” in ArcGIS with numerous polygons

Please help me with this question about "Select by Location". I'm currently using ArcGis 9.3.1 I have multiple "Selector" polygons. Ideally, I would like to select a points shapefile with "Select by ...
3
votes
1answer
235 views

Is there a (better) way to debug Visual Basic Code Block in calculate field using ArcGIS?

From time to time, I have to use Visual Basic in Calculate field. As the code get bigger, the more complicated is to debug it. And ArcGIS (9.3) does not help as the error messages are, in the best ...
3
votes
3answers
174 views

ArcGIS NEAR returns -1

We are running an ArcGIS 10.0 geoprocessing script written in Python that (as part of many steps above & below) runs the NEAR command. Both the input and output datasets (shapefiles & ...
3
votes
3answers
276 views

Buffer with physical barrier

I don't think is possible, but I'm looking for a way to stop my buffer at a certain physical barrier. For example, I have point near a river and I'm creating a buffer around my point that is larger ...
3
votes
0answers
403 views

IDatasetContainer2 CreateDataset method fails after upgrading to ArcObjects 10 [closed]

I have a Network Analyst routine that worked for 9.3 and does not work with 10. I was closely following the example at: ...
2
votes
1answer
279 views

How to separate raster bands in model builder?

I have a simple model that iterates through folders to collect imagery, mosaics them and clips the mosaic to a study area boundary. I need to produce an NDVI from the clipped 4-band mosaic ...
2
votes
1answer
137 views

Is there a difference between ESRI's NAD83 Indiana SPW and QGIS's?

It seems ESRI and QGIS don't have the same definition for my most commonly used projection, NAD83 StatePlane Indiana West (US ft). When I create data in an ESRI product the projection shows up in ...
2
votes
1answer
187 views

3d terrain from data in postgres

I am quite new to arcgis and I would like to create a 3d terrain. Now I have a postgresSQL table containing a list of points with their geometry data and the Z value for each point. What I would ...