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
10k 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
610 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
97 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
178 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
291 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 ...
4
votes
1answer
89 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
507 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
2answers
410 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 ...
2
votes
1answer
71 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 ...
2
votes
3answers
162 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
469 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
4answers
266 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
46 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
116 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
320 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
131 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
151 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
59 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
1answer
135 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 ...
2
votes
2answers
380 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
154 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
239 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
400 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
33 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
51 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
0answers
158 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
75 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
291 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
301 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
137 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
357 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
111 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
94 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
48 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
105 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
3answers
37 views

Populating newly created fields

In ArcGIS, i created a new field in my shapefile table and would like to type names there, but cannot. what do I need to do in order to edit the field?
1
vote
1answer
82 views

ESRI ArcMap Topology rules on multi story buildings

I would like to run some topology rules to find snapping errors in our polygons but I am running in to the problem where we are working on multi story buildings with every polygon regardless of floor ...
1
vote
1answer
478 views

How to create a feature class in memory?

I am trying to create a feature class in memory but I am not sure how to use the syntax. My code looks like this: FC = arcpy.CreateFeatureclass_management("", "in_memory/FC", "POLYGON", "", ...
1
vote
2answers
133 views

ArcReader 10.1 trouble (loading and printing is taking very long ime)

We've run into printing problems in ArcReader 10.1. Our trouble is with a particular floodplain feature class located in an SDE database. It simply takes forever to load! Then, when printing, it takes ...
1
vote
1answer
245 views

How do I convert a GPFeatureRecordSetLayer Feature Set to a Feature Class?

I have C# code to run a geoprocessing package that produces an output which is stored in a GPFeatureRecordSetLayer. Right now I have code that displays the result on the GUI when the job is complete . ...
1
vote
2answers
41 views

Convertfeaturestographics Tool or Program

Problem : With over 19 feature classes in our dataset, we need to convert all these featureclasses to graphic . But to do it programmatically, we searched the resources but could not find a Python ...
1
vote
2answers
132 views

cast from IFeatureClass to ISchemaLock

I'm programming with the ARCGIS Java SDK, in Eclipse. I need to cast an IFeatureClass to an ISchemalock. This cast is supposed to be allowed. There is an example of this cast in: ...
1
vote
1answer
65 views

Extremely slow processing time to map lat/lon data onto census shapefile with ArcPy?

I am a newcomer to ArcGIS and Python so I would greatly appreciate any and all input on this issue. What I am trying to do is very simple: map 400K business locations using lat/lon coordinates onto a ...
1
vote
0answers
31 views

Adding feature classes from within multiple geodatabases within multiple folders

I have thousands of feature classes that I'm trying to add to an ArcMap 10.1 map document. I have a folder of U.S. DEM files, and within that folder is a folder for each U.S. state. Inside each state ...
1
vote
1answer
80 views

Connect a sub-model with multiple outputs to current model

I have a model in model builder that is clipping multiple feature classes to my study area. It is running with an iterator and creating 4 new clipped feature classes that are only represented by one ...
1
vote
0answers
53 views

Issue on IFeatureDataConverter.ConvertFeatureClass

Does anyone know if it's possible to reuse this method with a "feature dataset" already present ? I'm trying to import multiple shapefiles under a featuredataset inside a fgeodb. Everything it's ...
1
vote
1answer
59 views

How do I use a generic List with my Arc Objects code?

/// <summary> /// Gets a list of all geoms in a Feature Class /// </summary> /// <param name="FClass">The Feature Class</param> /// <returns>a List of ...
1
vote
0answers
121 views

add an INDEX to an IFeatureClass with ARCGIS Java sdk

I want to add an index to a feature class. To do so, I used the very short and complete example given there: ...
1
vote
0answers
794 views

Cannot Import Feature Class into Personal Geodatabase in ArcGIS 10.1

My objective is really simple. I have a shapefile and would like to convert it to a Feature Class. My goal is to use HEM tools, which I think requires me to convert my shapefile of interest to a ...