ArcGIS is Esri's GIS platform name. DO NOT USE this tag except for questions concerning the ArcGIS platform AS A WHOLE. Product tags (arcgis-desktop, arcgis-server, arcgis-online, etc) combined with version tags (arcgis-10.3, arcgis-10.2, etc) are preferred

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29
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2answers
2k views

Streamlining Python Code for Big Data

I have Python code which is designed to take point shapefiles through the following workflow: Merge points Integrate points, such that any points within 1 m of each other become one point Create ...
22
votes
3answers
4k views

How to hide “internal” polygon boundaries?

We've been scratching our heads over how to tackle this for some time, and are no more illuminated than when we started. I hope you can help. Our task is thus: how to draw a lake with a solid outer ...
16
votes
4answers
9k views

The simplest way to uninstall any and all ArcGIS products?

What it is the simplest and most straightforward way to uninstall any and all ArcGIS products more or less in one go that might be present on a Windows machine? perhaps scriptable? Add/Remove ...
14
votes
3answers
673 views

Ecological geospatial conundrum

I am looking for a different, more elegant solution to a spatial statistics problem. Raw data consists of an x-y coordinate for each individual tree (i.e. converted to a point .shp file). Although ...
14
votes
3answers
605 views

How to determine if trees within forest gaps are clustered?

The attached dataset shows approximately 6000 saplings in approximately 50 variable sized forest gaps. I am interested in learning how these saplings are growing within their respective gaps (i.e. ...
13
votes
3answers
4k views

How to find and merge duplicate points?

I have two point shapefiles: Red and Blue. Each point shapefile has a z value which represents a radius (i.e. represented as buffers in the example). A duplicate point is defined as a point that ...
11
votes
4answers
3k 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 ...
11
votes
1answer
9k views

Which is the correct projection in ArcGIS for EPSG:3857/900913?

I want to publish a mapservice in ArcGIS server, which will be overlayed on Google Maps or Bing Maps. For this, the Map Service needs to be in EPSG:3857/900913. The Google Maps projection is supposed ...
10
votes
2answers
2k views

Methods for optimizing multcore processing in ArcGIS

I am interested in learning methods to utilize the full extent of multicore processing power available on a desktop computer. Arc states that background geoprocessing allows the user to utilize ...
10
votes
1answer
385 views

How to create an error map to support an average kernel density map?

I've created an average kernel density map by running KDEs on points stacked within the same spatial extent. For example, say we have three point shapefiles representing seedlings in three different ...
9
votes
2answers
1k views

How to bypass errors in arcpy for/while loop?

I have a handy script tool that loops through a workspace and renames and copies shapefiles to a feature dataset. However, if there is a corrupted shapefile somewhere in the workspace the script ...
9
votes
2answers
711 views

Can ArcGIS and OSGeo4W share the same python install?

I don't like unnecessary duplication. Is it possible to install python only once and have both ArcGIS and OSGeo4W use it?
9
votes
4answers
25k views

Add Google Basemap to ArcGIS

I am looking for a way to add Google Earth imagery to ArcMap 10. Over a year ago, a GIS.SE member mentioned Arc2Earth was the only way to accomplish this (04/2011 thread). Another somewhat ...
9
votes
3answers
1k views

How to combine corner-touching polygons into a single feature

I have created a polygon layer from rasters, and only have a single classification ID (and calculated acres) for each polygon. I would like to "dissolve" all touching features into larger, individual ...
8
votes
4answers
291 views

Subset Folder Contents ArcPy

I have about 1500 .txt files within a folder named 3410001ne => 3809962sw. I need to subset about 470 of these files to process with a Python script. Below is the section of code prior to my for ...
8
votes
4answers
1k views

How to split points by polygon?

I am looking for a way to split points by a county polygon feature class. The attached image shows two feature classes: one composed of points and the other a county polygon feature class. The split ...
8
votes
1answer
284 views

Are there any rules of thumb for the neighborhood settings in Focal Statistics?

In ArcGIS 10, users can define the neighborhood in the Focal statistics tool. The moving window shape can be set to any of the following: Wedge, annulus, circle, rectangle, irregular, and weight. ...
8
votes
1answer
845 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 ...
8
votes
0answers
375 views

Using a different Python IDE/debugger for ArcGIS [duplicate]

Possible Duplicate: How can I effectively debug arcpy Python scripts? I prefer to use PyScripter over IDLE as my IDE/debugger for writing GP scripts in Python. In ArcGIS, however, when I ...
7
votes
2answers
2k views

Upgrade guidelines for ArcGIS 9 to 10?

We have a copy of ArcGIS 10 that we are preparing to use to upgrade our existing ArcGIS 9.3 installation. Should I uninstall ArcGIS 9.3 first? Or do I install ArcGIS 10 over it? Please let me know if ...
7
votes
2answers
525 views

How to create a solar intensity map for a garden plot?

I'm interested in creating a raster surface that depicts the average solar intensity per unit area for a small garden plot. I imagine the inputs into the model would be the following: Plot ...
7
votes
2answers
743 views

Allow multiple users to share personal geodatabases safely?

We're using ArcGIS 9.3 but for reasons beyond the scope of this question we have to stick with personal geodatabases (MS Access .mdb's) and multiple users. How can we set this up so only a limited few ...
7
votes
4answers
1k views

ArcGIS JS API: Merging Popups with Relationship Queries (with fiddle)

I am trying to merge two ArcGIS JS API examples: Feature Layer with Popup and Query Related Records. The idea I have in mind is clicking on a country feature, retrieve all related records from a ...
7
votes
1answer
306 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
464 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
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
4answers
157 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
824 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
2k 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
2k 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
3answers
884 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
1answer
781 views

SQL Server Relationships in ArcSDE

I am running ArcSDE 10 with SQL Server 2008 R2 Standard Edition. I am new to SDE and SQL Server, but I understand that SQL Server has the ability to create relationships between tables and maintain ...
7
votes
2answers
501 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
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
2answers
379 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
195 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
2answers
473 views

Exporting ArcGIS plugin data source to Shape

I have implemented a plug-in data source for ArcGIS. In my case, the format read by the plug-in may contain point, line and polygon features within the same file. In my implementation the data file ...
7
votes
1answer
304 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 ...
6
votes
4answers
5k 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
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
3answers
3k 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, ...
6
votes
5answers
2k views

Running ARCgis 9.3.1 and 10.0 on the same machine

I have the full installation Media for 10 (9.3/SQL05 already loaded). And two editor licenses (one loaded and a new license file). What manner of wizardry is involved in getting around the conflict ...
6
votes
3answers
2k views

Are there any issues going back-and-forth between Quantum GIS and ESRI software?

A very simple question. I have very simple work tasks at the office (digitizing) that I would like to be able to work on at home because we are exceptionally busy. I don't want to spend thousands of ...
6
votes
6answers
1k views

Finding shortest path while avoiding polygon features

I'm developing an extension to ArcMap where I have a set of static, concave polygon features and I'm trying to find the shortest path between 2 points without crossing any of the polygons. Is there ...
6
votes
2answers
2k views

Place image inside of Label

In ArcView, Can I add an image to a label. Assume I have the photograph path as an attribute.
6
votes
2answers
234 views

projection tool as standalone script

How would I automate the define projection tool in arcmap so I can just enter my layer each time? I have it as a script in toolbox, but I am unsure how to set it so I can just input my layer as ...
6
votes
5answers
2k views

What is the hierarchy of features in ArcGIS? Is it different in other software?

first post - new to GIS. My understanding of shapefiles is that they are (contain?) featureclasses, that contain features (points, polylines, polygons). Is there a clear hierarchy for these files. ...
6
votes
2answers
779 views

How to simply label raster cells?

I think the title says everything but: I want to generate a small sample raster (eg. euclidean distance or cost distance) to explain the method of cost-distance analysis, and I'd like to label the ...
6
votes
3answers
4k views

ArcGIS Export Selected Raster Graphics

I'm having a problem exporting raster graphics using ArcGIS 10. It seems simple enough, but for some reason I cannot get ArcMap to work with me. Here are my steps: Add a raster to ArcMap Open the ...