ArcObjects is a set of COM-based APIs from ESRI Inc. that are used in several of their products including ArcGIS Desktop, ArcGIS Engine and ArcGIS Server.

learn more… | top users | synonyms (3)

5
votes
1answer
224 views

Is it possible to add to the map a layer containing results from a sql query

I'm developping an ArcMap Extension and I need to join an existing feature class with data from a sql query located on another DBMS. I already set up a Workspace with an OleDbWorkspaceFactory. I'm ...
5
votes
0answers
109 views

Is IGraphicTracker leaking memory?

It seems that when geometries are removed from an IGraphicTracker instance, the geometries remain in memory until IAoInitialize.Shutdown() is called. I have tried removing the geometries by calling ...
5
votes
0answers
299 views

Plugin Workspace: when to close an OleDbDataReader?

I'm developing a plugin workspace for ArcGIS. Internally, the plugin uses an OleDBconnection. All of the sample code I see seems to stress the importance of closing and disposing the connection. ...
5
votes
0answers
94 views

Can I verify that attribute indexes are being used in a query from ArcObjects?

We have some software as part of a larger project written using ArcObjects via .NET. This software migrates and merges data from multiple file geodatabases in one schema to a single file geodatabase ...
5
votes
0answers
139 views

How can I control what is passed to the OnCreate() method when a command or tool is initialized? [closed]

In an ArcEngine application can I control what is passed to the OnCreate() method when a command or tool is initialized? (I am using a synchronization object because I have both a map and a ...
4
votes
4answers
1k views

Exploring ArcObjects through C# or VB from Python background

While I understand that this may be off topic to an extent, I am in a bit of a bind and could use some help directing my thought process and research. I have little programming background aside ...
4
votes
5answers
5k views

Getting unique value records from a field

Building a desktop application using C#.net and arcobjects. I'm trying to retrieve records from a shape file using IQueryFilter. Having trouble writing the where clause in my scenario and the ...
4
votes
4answers
198 views

IEditSketch and IEditSketch2

What is the difference between IEditSketch and IEditSketch2? Also why there are same interfaces with the same name only with a difference "2" at the end of the interface's name ?
4
votes
1answer
875 views

What is the difference between ActiveView, FocusMap and PageLayout in ArcObjects?

I see that different starting points are used when interacting with ArcMap IMxDocument IMxDocument mxDocument = application.Document as IMxDocument; IActiveView activeView = ...
4
votes
2answers
1k views

What is the best approach to using IQueryFilter.WhereClause in ArcObjects?

What is your preferred / best approach to using IQueryFilter.WhereClause statements in ArcObjects (e.g. when selecting features by attributes)? You need to check the source type (shapefile / personal ...
4
votes
2answers
97 views

Given a collection of IPoints is there a quick way to get the extent that contains them?

I have a bunch of IPoints. I need an extent which contains all of them. Is there a quick way to do it? I had the idea of converting them to screen coordinates and then figuring it out manually but ...
4
votes
3answers
438 views

Maximum length of WHERE clause with IN statement

I need to get all features from feature class where their field value matches to input array. To achive this one may set IQueryFilter.WhereClause property similar to 'FIELD_NAME IN (array[0], ...
4
votes
2answers
1k views

Split a Polyline into small segments

I am writing an addin, which needs to split a polyline into a number of segments taking the number of segments as an input from user. How can I accomplish this?
4
votes
2answers
747 views

Is it possible to deploy on a ArcGIS 9.3.1 machine a component created with ArcGIS 10?

We are developping a C# ArcObjects Class extension assembly. Our development machine was recently updgraded to ArcGIS 10, but when we try to install the assembly on a 9.3.1 machine, we get an R0000 ...
4
votes
3answers
540 views

ArcObjects: How to measure the draw time of a layer in ArcMap?

I'd like to quantitatively measure the display performance of mosaic datasets, image service layers, raster layers, feature layers, etc. in ArcMap 10. How can I measure the draw time of a particular ...
4
votes
4answers
2k views

Determine overlapping points using a spatial filter in ArcObject

I have a point layer with thousands of points. Using a spatial filter, I have to find out those points which are intersecting each other. Then the objectid's of the intersecting points should be ...
4
votes
4answers
3k views

Sum the values of a single raster and output the value as a number?

I have a floating point raster and have applied a conditional to it in order to only extract the positive values, so there are 'no data' "holes" in the raster. I simply need to sum the values from ...
4
votes
2answers
1k views

Comparing two featureclasses using C#

I'm sorry, I know this is a pretty simple question but am having trouble getting this to work. Basically, I have 2 linear featureclasses and they both have the same fields and spatial reference. FC1 ...
4
votes
2answers
1k views

Programmatically alter AliasName for fields defined in layer file (not underlying source)

Is there a way to alter the AliasName on a layer file only, and not the underlying shapefile or feature class? I have a few hundred layers that define joins between hundreds of tables with census data ...
4
votes
1answer
238 views

CustomLayer Draw Com Exception

I'm trying to create a custom layer, nothing crazy just press a button and have something show up on the display and also have the layer display in the TOC. Well, the layer shows in the TOC but ...
4
votes
1answer
163 views

Guidelines for using ArcObjects from Python

By far, How do I access ArcObjects from Python? is my most read and referenced Q&A on GIS Stack Exchange. In spite of that success, it's probably one of my weakest areas when it comes to actual ...
4
votes
1answer
842 views

Editing ArcSDE table with ArcObjects?

The link below provides a code snippet for editing an ArcSDE table with ArcObjects. Are there any other or newer code examples out there of how to edit an ArcSDE table by using ArcObjects? Edit ...
4
votes
2answers
259 views

How do you determine if feature is editable?

I am using the FocusMap.FeatureSelection to return all the currently selected features. I want to process only the currently editable features and leave the remainder alone. How can I quickly ...
4
votes
3answers
1k views

Delete a feature data set in SDE 10 programmatically

Is there a way to delete a feature data set and all of its feature classes programmatically either by using custom code or pre-existing command line tools? There is a tool provided by SDE called ...
4
votes
2answers
704 views

Is IPolygon2.QueryExteriorRingsEx Method not working in ArcGIS version 10.1 SP1?

I am updating my addins from 10.0 to 10.1 and my code is crashing on the IPolygon2.QueryExteriorRingsEx Method. I understand there is something strange going on with this method because Developer ...
4
votes
2answers
4k views

How do I change the targeted .NET 4.0 Framework to version 3.5 in an existing VS 2010 EXPRESS project?

I am upgrading from ArcGIS desktop 10.0 to 10.1 and I have a bunch of addins developed in VS 2008 Express using ArcObjects 10.0. I would like to upgrade everything to 10.1 using VS 2010 Express. I ...
4
votes
2answers
695 views

How to select features that intersect but don't touch (using ArcObjects)?

So how do I do that? ArcMap's Select By Location selects also all features that touch, but I only need the ones that actually intersect the area. I currently use ...
4
votes
1answer
521 views

Programatically take screenshot of map extent in ArcMap 9.3

Is it possible to programatically capture a screenshot of the current map extent (the map area with any active displayed layers) in ArcMap with the ArcObjects .NET SDK?
4
votes
1answer
127 views

Is it possible to access the Catalog window programmatically in ArcMap?

Specifically, I would like to get the selected object, similar to the way you do in ArcCatalog through IGxDialog.SelectedObject. Is there a way to do this? So far I can get the Catalog ...
4
votes
2answers
1k views

Running ArcPy script from ArcObjects?

the standard method requires to run ArcPy script in command line, i've struggled with it to run but without a result, i can import arcpy, set the workspace to the geodatabase path and describe the env ...
4
votes
4answers
555 views

How to get exact ISymbol image size in pixels

I found the next code to convert ISymbol into bitmap image, but how to know the suitable image size? (suppose we have a ITextSymbol) private static Image PointSymbolToImage(ISymbol symbol, Size ...
4
votes
1answer
995 views

ArcObjects - Create a map in the background from layers and save as JPG

Given a series of map layers is it possible to arrange them in some order, add basic map features (north arrow, scale bar) and then save the result as a JPG. I'd like to accomplish this in the ...
4
votes
2answers
1k views

Adding data from a SQL Server Spatial database to ArcMap or ArcEngine application with ArcObjects for better performance

I have an ArcSDE geodatabase stored in MS SQL Server 2008 R2. The datasets in this geodatabase range from 10 record to 7 million records and there is a mixture of tables and spatial datasets (SQL ...
4
votes
3answers
171 views

Navigating ArcObjects Object Model Diagrams (OMDs)?

How does everyone get round navigating the different Object Model Diagrams (OMDs)? I can work with single interfaces no problem, but when i have to use multiple interfaces I struggle to get my head ...
4
votes
1answer
1k views

How to run VB scripts in ArcGIS?

Some questions about VB scipts: Can I read and modify the code of a VB script? If the answer is yes, how can I do it? How can I run a VB script? Can I use it as a VBA code eg.using variables instead ...
4
votes
3answers
1k views

Problem creating a point IFeatureClass

I'm trying to create a point IFeatureClass, but my code doesn't work. Public Function CreatePointFeatureClass(ByVal featureClassName As String, _ ByVal ...
4
votes
2answers
1k views

Get Database Table Name From Layer Name in ArcObjects

I am using ArcObjects v10.0 with a SQL Server 2008 database. Given the name of a Layer, is there a way for me to extract the corresponding name of the database table that represents that Layer? The ...
4
votes
1answer
597 views

How to set focus on ArcMap map window using arcobjects and c#.net

I have developed a custom dockable window with textboxes, comboboxes and a button for use in ArcMap. After the user clicks on the button in the dockable window a function is invoked. After the ...
4
votes
5answers
805 views

Intersection of two lines tool

Is there any way to make intersection of two lines tool with extending lines option, so the result would be a point. the hardest part is when the lines have to be extended to intersect. the tool will ...
4
votes
2answers
854 views

How to find self-intersecting polylines using ArcObjects?

If I have a polyline, how do I figure out whether it is self-intersecting? I tried to use ITopologicalOperator.IsSimple Property, but it always returns true. Are there any ways of doing these kind ...
4
votes
2answers
938 views

A bug in ESRI Line Geometry WKB that adds needless, trailing 0's behind otherwise valid WKB?

[Update 7.13.2012] My coworker noticed the the ESRI Line WKB is malformed contains unspecified trailing data, and since he's not active on GIS.SE, I posted his remarks as an answer. I'll wait a few ...
4
votes
2answers
1k views

Perform a spatial join in C# with ArcObjects

I feel like this has to be on the internet somewhere, but I haven't been able to find it. I'm attempting to perform a spatial join on a polygon and point layer. My goal is to push the polygon's ID ...
4
votes
2answers
267 views

Developing tools for ArcMap 9.x and 10.x

I've been asked to start developing something for ArcGIS 10.x, but here is the problem: in my computer I already have the SDK and ArcMap 9.3.1 installed. That means that I need to uninstall it before ...
4
votes
1answer
653 views

ArcObjects joins and non-persistent fields after joining to multiple tables

I have inherited a truly awful and very large ArcObjects project that was originally written in VB and then ported to C#. Apparently the source code I have been given is not the latest version and I ...
4
votes
2answers
4k views

ArcObjects - Finding the intersection of a polyline and polygon?

I have a polyline and polygon. The polyline will intersect the polygon at two or fewer points. I would like to get these intersection points as X and Y values. EDIT: Here is a quick code sample using ...
4
votes
2answers
1k views

MapScale not being persisted properly in mxd when programmatically changed outside of ArcMap environment

I am trying to change the scale of a map in an mxd OUTSIDE of ArcMap in a standalone Windows application. The problem is the scale is never persisted - the best code I have come up with is the ...
4
votes
2answers
870 views

Identifying features using ArcGIS Engine?

I am new to arcgis. I am building a custom desktop GIS application using arcgis engine 9.3.1 . I want to make a custom identify tool and add it to toolbar control. Any example or code will be ...
4
votes
1answer
1k views

How can I import layer symbology from another layer programmaticaly with ArcObjects & VBA?

I would like to be able to develop a procedure that runs through all layers in the TOC and if the layer (name) exists in a specific folder where I am storing layer files with complex symbology I would ...
4
votes
3answers
5k views

How do I upload a Featureclass to a Geodatabase in C#?

All, I have a featureclass with Arcobjects that came from a Shape file and I wish to import it into a geodatabase. I have the geodatabase connection, I just don't know how to load the feature class ...
4
votes
1answer
189 views

Getting feature at point in C#

I want to get the feature at where mouse was clicked in map. So I was wondering how to get features which intersects with that point. Plus I was wondering how can I check what type of object it is ...