In ArcGIS, a collection of geographic features with the same geometry type (such as point, line, or polygon), the same attributes, and the same spatial reference.

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21
votes
5answers
12k views

What is difference between map layer and spatial dataset (e.g. feature class, shapefile)?

This may be very trivial question. To me they seems very similar in concept. What is the difference between feature class and feature layer?
7
votes
3answers
1k views

How to extract the number of vertices in each polygon?

I have ArcGIS Desktop 10.2 and my challenge is how to extract the of number vertices in each polygon for all features like this: I have many parcels in my feature class and I want to extract ...
7
votes
3answers
2k views

Why is it important to use feature layers in ModelBuilder?

I am trying to understand creation of a geoprocess with ModelBuilder, but I don't know why it's important to use feature layers instead of feature classes when creating a geoprocess with ModelBuilder. ...
7
votes
2answers
110 views

Best Practices for Tracking Feature Changes and Supporting Documentation

In my organization, it is very important that we have documentation from an authoritative source to support every feature that we add to our data and every edit that we make to each feature. ...
7
votes
1answer
266 views

Is it possible to localize ArcGIS Feature-Classes?

I wondered if it is possible to translate an arcgis feature-class into different languages? For example I want to translate the Fields of the class and then add the data for the defined languages. I ...
6
votes
3answers
344 views

What is the best practice for editing feature class?

I am working with some feature classes. I create those feature classes using my add-in. User can add/ delete features from these feature classes clicking on "add", "delete" buttons and selecting ...
6
votes
3answers
202 views

Is the filename of a shapefile the same as its Feature Class name?

This is a very basic question, but I'm not finding the answer on Google or here... I have a bundle of files I have to submit in an incredibly specific format. Our sub-consultants gave us a set of ...
4
votes
1answer
180 views

How to make two feature layers congruent using ArcGIS for Desktop?

I have two feature layers (polyline/polygon) which should be congruent but there's an offset of about 220 meters. The Georeferencing tool only works with raster layers. How do I do the equivalent ...
4
votes
1answer
102 views

end execution of script and send email if schema has changed

I would like to append the data from one feature class to another after confirming that the schemas match in both feature classes. I can append the data from one FC to another by using this simple ...
4
votes
1answer
684 views

Is there a faster way to get unique values for a given FeatureClass in ArcObject?

I'm trying to count rows by unique values for a given FeatureClass. I'm using DataStatistics to get the unique values for a specific column for a given FeatureClass. This seems to be (very) slow with ...
3
votes
1answer
105 views

How to get all the FeatureClasses from IWorkspace?

Well i create a Geodatabse in my SQL Server using ArcCatalog then i create 5 new FeatureClass, i want to get all the FeatureClasses in this GDB, this is my function to get all the FeatureClasses from ...
3
votes
1answer
98 views

How can I move and resize features with an ArcView license?

this might be a silly question but I have a problem with moving features in ArcGis 10. I'm only using the ArcView license so the editing tool "representation" is deactivated. Is there an easy way to ...
3
votes
2answers
530 views

How to efficiently check for feature overlaps with Arcpy?

In an effort to reduce processing time, I am looking for ways to pre-process data within my script. I have ~18,000 featureclasses with ~500 features each (all simple circle polygons) from which I want ...
3
votes
2answers
60 views

How to clip vector data from raster data?

I have two files: National land cover data (raster) HUC 8 (vector files of watersheds) Both are national scale but the HUC 8 takes up a larger geographic region than the raster set so I want ...
3
votes
1answer
257 views

Automatically update feature class based on another feature class in same geodatabase

I work at headquarters and there are 3 regions. Each region is responsible for their data and headquarters is responsible for merging the data and creating a national coverage. All regions and ...
3
votes
1answer
47 views

Remove duplicate feature based on Condition

I have a line dataset that was produced from ModelBuilder (not built by me) that involves splitting lines into individual segments using existing Point dataset in between as the split zone. However, ...
2
votes
3answers
464 views

How to create a geodatabase feature class using a geodatabase table schema with ArcPy?

Is there a way in ArcPy to create an empty polygon geodatabase feature class that will acquire the schema of a geodatabase table? I know that it's possible in ArcCatalog (New -> Feature Class and ...
2
votes
2answers
568 views

Add a new field in a already created feature class

I have a feature class. On the basis of some calculation, I want to create a new field in that table and set value of that field. To do so, my algorithm is: void UpdateFeatureClass(IFeatureClass ...
2
votes
1answer
32 views

Setting creation of feature dataset as precondition to iterative process using ArcGIS ModelBuilder?

When using ArcGIS ModelBuilder, how do you set the creation of a feature dataset as a precondition to an iterative process, and not have it re-create the feature dataset each time through? This is ...
2
votes
1answer
320 views

Unable to change name of feature class using ArcGIS Desktop?

I am in ArcView 9.3. I have created a personal gdb and a Feature Class. I was able to change the name of the gdb, but why CAN'T I change the name for the Feature Class (FC)?
2
votes
1answer
35 views

Determining date or time Feature Class was created in File Geodatabase?

I had a script running at the office over the last 5 days and tried to remote on unsuccessfully since the 3rd day. I got here and it appears there was a power outage. Is there a way to find out the ...
2
votes
2answers
52 views

Unable to create Dimension Feature Class

I am trying to create a Dimension feature class within a new geodatabase. I right-click on the geodatabase and select the New, then Feature Class. The New Feature Class window comes up and I can ...
2
votes
4answers
462 views

How to take 2 points from One featureClass, create a line between those points, and add the line to a new featureClass (aka Shape File)?

I'm a total noob/beginner in ArcObjects. I'm coding in C#. I want to extract 2 points from a given featureClass, create a straight line between those 2 points, create a new feature class and add ...
2
votes
1answer
52 views

For loop within SDE

I have a list of SDE connection files in a folder in my computer. I can use arcpy.listWorkspaces("*", "SDE") to find the workspaces. But I then want to dig deeper into each of the SDE files and list ...
2
votes
2answers
142 views

'DEFeatureClass' vs. 'IFeatureClass'

I'm writing an ArcGIS 10.1 .pyt toolbox to accept a feature class as input (not a shapefile). Referencing ESRI's online guide to 'Geoprocessing Data Types of Parameters and Environments' [PDF ...
2
votes
1answer
475 views

How to use multiple wildcards within an iterator in ArcGIS ModelBuilder?

I would like to know if it is possible to use multiple wildcards to select specific shapefiles when using the Iterate Feature Classes tool in ArcGIS modelbuilder. E.g. I use this to select all ...
2
votes
2answers
142 views

Erase features from feature classes based on record ID?

This is the challenge: I have two feature classes, which have the same number of polygon features, that when overlaid form concentric "rings." I need to erase the inner circle from the outer circle ...
2
votes
1answer
189 views

Is there any way to reset feature cursor?

When we search within a feature class, it returns a feature cursor. To get features from a feature cursor, I use following code snippet: private List<IFeature> GetFeatureList(IFeatureCursor ...
2
votes
1answer
45 views

Can I convert an IFeature to ILayer and add it to the map?

I want to use FeatureClass.Search() to get a specific Feature and I want to convert this one to ILayer and set it to the Map, is there any way to do that?
2
votes
1answer
79 views

Problem adding dates into an existing feature class from an excel spreadsheet [closed]

I've been trying to load data from an excel spreadsheet into existing feature classes, but I've been having some trouble with the dates. I've written a script that compares the values in the ...
2
votes
2answers
596 views

Open Failed - Attribute Column Not Found

I'm running a PostgreSQL database on my local machine and have set up an connection to it from ArcMap 10.1. I can see all of my tables in the Catalog pane. There is one table that I cannot seem to ...
2
votes
1answer
179 views

Schema Lock Test in Model Builder for ArcGIS 10.0 Desktop

I have made a model (Model Builder) that exports a Polygon Layer from a Parcel Fabric and Exports it as a set of Features Classes into a set of Feature Datasets. However, there are often other people ...
2
votes
2answers
327 views

How to upload polygon data for appending to a geodatabase via a JS API web application

After a many hours of research, I am having a hard time determining the feasibility of an application I am trying to build. Basic proposed functionality is: user logs in, uploads polygon (either ...
2
votes
3answers
459 views

Field Type Date invalid when run in Python, but not in Model

Using ArcGIS Desktop Advanced 10.1 and PyScripter When running the arcpy.FeatureClassToFeatureClass_conversion, I get the error that the field type of Date is not valid. However, when running this ...
2
votes
0answers
28 views

Merging Feature Classes and keeping the metadata

Is there a way that while merging two feature classes we can keep the metadata? We are merging feature classes with templates so we can import specific fields into our data. Is there a way to keep ...
2
votes
1answer
24 views

How to calculate square footage from multiple records into one field?

I want to add up the square footage for each building floor and enter the total into another field within the same feature class. Each floor has a different size and is a separate polygon with a ...
2
votes
0answers
44 views

Way to extract a specific feature class from a dataset in model builder?

I would like to be able to run a model that iterates through datasets and at one point extracts just a single point feature from within the dataset and save it in a different geodatabase. The problem ...
2
votes
0answers
408 views

Editing Feature Class using ArcObjects

I have a problem with editing feature class using arc Objects.Indeed I am working on it for a while and cant find any solution into doing it..I asked a question before about how to connect to database ...
2
votes
2answers
83 views

Create a raster from file geodatabase featureclass based on a field from a related table

I have a USDA Statsgo soil polygon featureclass stored in a file geodatabase along with an attribute table; I have a one-to-one relationship class defined based on the soil type field. When I bring ...
2
votes
1answer
223 views

How to add XY coordinates (latitude/longitude) to a DEM raster in ArcGIS 10.1

I would like to add xy coordinates of about 10 sites to a raster. I am using ArcGIS 10.1 and my xy coordinates are on Access 2013 database - saved as .mdb. The steps I have taken so far: 1) In ...
1
vote
2answers
126 views

Renaming a variable input to replace spaces with underscores to be used in an output's name

This may be easier than i am making it. Using Model Builder, I have a variable input "Name", which is set as a model parameter, used for a 'Select by Attribute' early in the model. I would like to ...
1
vote
1answer
862 views

Export attribute table (feature class) to text file in batch?

What would be the most efficient way to export attribute tables from multiple feature class files stored in a file geodatabase? Export to .txt or .csv. Is there any sort of batch process? Or python ...
1
vote
1answer
477 views

Creating Random Points in ArcGIS 10.1

I would like to create random points across my study area (which is a DEM raster) using the Feature Class> Create Random Points. However, I need to select/copy/move/delete these points and re-arrange ...
1
vote
1answer
188 views

Copy specific cell value from one feature class and append to another feature class

I want to copy specific cell value from one feature class and append to another feature class. I have the following code, however, when I run this, it does not produce the results, nor shows any ...
1
vote
1answer
562 views

Copy features from feature class to an existing feature class with arcpy

I see CopyFeatures_management, but this creates a new feature class. http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//001700000035000000 Is there a way to copy features from a feature ...
1
vote
2answers
539 views

Create Feature Class From XY Table Using Python

I have some txt files that are basically attribute tables (object ID, latitude, longitude, area). In ArcMaps, I have been converting these files into feature classes and saving them in a geodatabase ...
1
vote
2answers
286 views

Using ArcPy: adding feature class and fields in an un-saved mxd

With ArcPy I have created a tool that creates an empty feature class with pre-defined fields and adds it to the TOC. It works quite well, however if I use the tool to generate a feature class in an ...
1
vote
1answer
73 views

Can I create a polyline with one long segment and three shorter underlying segments?

We currently have a street centerline polyline feature class where the street segments correspond to our pavement management database. Each segment has a unique ID that matches a record tracking ...
1
vote
1answer
186 views

How to reset ObjectID after running Delete_Features on SDE feature table?

I have a python script that deletes all features on a SDE feature table and then inserts new features to it. I noted that the ObjectID keeps incrementing from where the last feature was with before ...
1
vote
2answers
45 views

Using Python to Rename Feature Class by Field ArcMap

Alright so I made a pretty little model and at the end I want to rename the feature class file to something based on the fields in that feature class. I want to rename that feature class by the date ...