This tag SHOULD NOT BE USED except for questions concerning Esri's 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
votes
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
5k 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 ...
14
votes
3answers
690 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 ...
13
votes
3answers
5k 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
4k 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 ...
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 ...
9
votes
2answers
734 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
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
301 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
0answers
377 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
791 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
2answers
2k views

Finding parcel polygon features with frontage on multiple streets

The Department of Public Works would like to know how many properties in the city have a sidewalk at both the front and back. To get at this, I'm looking for a method to find parcels with frontage on ...
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
1answer
891 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
934 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
837 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
506 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
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
479 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
3answers
769 views

How to convert high precision dataset to low precision

A high precision dataset was loaded from a file geodatabase into arcsde 9.3.1. The dataload was achieved by copy/paste in ArcCatalog. A custom tool (arcobjects) that extracts from the dataset to a ...
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
5answers
3k 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
242 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
3k 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
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 ...
6
votes
2answers
1k views

How do I select only those features, that are connected?

I have a polygon layer of water reservoirs and a polyline layer of canals. In my data, some canals are originating from reservoirs, and leading to other canals. On the other hand there are some ...
6
votes
2answers
759 views

Alternatives to ArcGIS Extensions using ArcObjects?

I was wondering if there are any projects based around using ArcObjects and external libraries to create open source alternatives to extensions in ArcGIS. For example 3D Analyst, Spatial Analyst etc ...
6
votes
1answer
10k views

How can I transform GCS_North_American_1983 to GCS_WGS_1984?

I posted a thread today describing a shift in some of the NRC data (not all). Apparently, this shift has to do with conversion between Geographic coordinates, latitude and longitude and Transverse ...
6
votes
5answers
5k views

How can I export a sketchup Model to ArcGIS's Multipatch?

I have a very large model made in Google Sketchup v 7.1. I would like to export this to a Multipatch featureclass, so that I can view it in ArcScene, with other 3D data. I have tried several things, ...
6
votes
2answers
546 views

Find Duplicate Feature Classes in ESRI Geodatabase

I have inherited a SDE instance that has 1000+ feature classes within which are around 100 Feature Datasets. I have found through manual exploration that there are at least some Feature Classes that ...
6
votes
1answer
3k views

How to programmatically add shapefile to data frame in Arcmap

I have a toolbox with python script which creates a shapefile from JSON txt file, but it does not show the generated shapefile in arcmap, i have to add it from the output location. What code shall I ...
6
votes
2answers
5k views

How to do regression analysis between two variables using ArcGIS

I have a temperature image (interpolated from climatic point data) and NDVI data at the monthly interval. I need to do correlation analysis between temp and NDVI. Is it impossible to do this using ...
6
votes
1answer
612 views

How to get table Name from IObjectClass

I'm using IRelationshipClass.DestinationClass to get an IObjectClass. From here, I want to be able to get the table name, but can only access the AliasName. Any ideas? UPDATE Aughhh, after ...
6
votes
3answers
1k views

How to find the elevation differences between adjacent pixels in ArcGIS?

Is there a way to determine what the difference in elevation is between two adjacent pixels? I am using an SRTM DEM to map faults. I am using the vertical error (>16m) as a criterion for the ...
6
votes
2answers
1k views

ArcGIS 10 British National Grid Transformation

In ArcGIS 10 a new transformation has been added for converting between WGS84 and British National Grid. What is OSGB_1936_To_WGS_1984_NGA_7PAR? How should it be used when compared with the other ...
6
votes
1answer
270 views

Does Arcpy work for Engine or Server the same as Desktop?

I am contemplating a project where there is not going to be access to ArcGIS Desktop and wondering if Engine and/or Server install ArcPy and Python? Is this possible? Does anyone have an example?
6
votes
3answers
2k views

How to create floating-only window in ArcMap?

I'm looking for a way to create a floating window in ArcMap. To give an example just look at the window of the Identify tool. Floating means that it stays in front of the map document at all times ...
6
votes
1answer
715 views

What is the right way to automate ArcMap 10 with ArcObjects for unit testing?

I need to run unit tests against ArcMap extension which closely coupled with specific edit workspace and map state. When I try to initialize ArcMap application with code like this: ...
6
votes
1answer
2k views

Is it possible to convert graphics to features in ArcGIS 10 using arcpy?

Apologies if this is easy but I cannot seem to find the answer. Is there a way to convert a graphic to feature, i.e. use the "Convert Graphics to Feature" tool on the toolbar, within arcpy? I need to ...
6
votes
1answer
2k views

Arcobjects: Zoom to first queried feature

I'm attempting to query a feature class for all features that meet a certain criterion (in this case, the Status field is NULL). However, I'm not getting very far into the attempted method before ...
6
votes
2answers
7k views

Why are my labels overlapping in ArcGIS 10?

Please excuse what may be a very newbie question. I'm not new to GIS, but just learning ArcGIS. I have been led to believe that the standard labeling engine doesn't allow any overlap: ...
6
votes
1answer
2k views

ArcGIS: inside buffer with attributes?

How can I create buffers for polygons that a) lie only inside the polygon boundary, and b) know who their parent is? An example of where this is useful is First Nation Traditional Territories. There ...
6
votes
1answer
2k views

Reset local memory in ArcMap 10

I often am unable to delete files due to a lock or need to reset the data frame coordinate system. Very often starting a new session of Arc will allow certain geoprocessing or data management tasks ...