ArcObjects is a set of COM-based APIs from ESRI Inc. that are used in several of their products, ArcGIS Desktop, ArcGIS Engine and ArcGIS Server.
58
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5answers
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How do I access ArcObjects from Python?
I want to be able to script some things that aren't exposed via arcgisscripting or ArcPy. How do I access ArcObjects from Python?
I'm working with ArcGIS Desktop 9.3.1 right now, but will be ...
23
votes
4answers
2k views
Performance of ArcGISScripting and large spatial data sets
I am currently writing a python script using the arcgisscripting module to process a reasonably large data set (~10,000 records in total) normalised over a small number of tables, 8 in total. The ...
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vote
2answers
169 views
How to define Subroutines and functions?
I am working in VBA. My error is sub and function are not defined. Here is my code:
Private Sub CreateMap(cboDistrict As String)
Dim mapDocument As New mapDocument
If ...
5
votes
3answers
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Python, comtypes and ArcObjects: Error creating AppROT object
I am experimenting with comtypes and ArcObjects under Python 2.6.5 and ArcGIS 10 SP1. I'm using the pure Python method to wrap the ArcObjects OLBs described in this answer, but getting an error in the ...
9
votes
3answers
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How does ArcGIS compute the distance between two points with a non-equidistant projection?
This is a follow-up question to my previous one, Can you suggest some well-written introductory texts about coordinate system projections?
Let's assume I'm working with the CH1903 map projection, ...
5
votes
2answers
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How to use ArcObjects to choose GeoTransformation?
I’m currently building a Desktop add-in tool with ArcObjects that:
Asks a user to select a feature class
Reprojects the feature class to Web Mercator
Executes some geoprocessing
The initial ...
3
votes
1answer
380 views
ArcObjects + comtypes at 10.1
Has anyone played around with using ArcObjects in Python at version 10.1?
I am having all sorts of problems, such as TypeErrors when wrapping the ESRI OLB modules and AttributeErrors when attempting ...
13
votes
1answer
745 views
Calling arcpy/python from .NET?
Are there any available examples that show how python can be integrated into a .NET ArcGIS Addin or Extension? I have a series of python scripts that I would like to call from form events (e.g. button ...
12
votes
8answers
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Getting started with Arcobjects
What is the best route or place to get started with arcobjects if one is not a developer and not aiming to become a developer?
I've been using gis professionally for a long time, almost two decades, ...
10
votes
2answers
739 views
How to unit test ArcObjects with Mocking
I'm a huge fan of unit testing, but still make use of a FGDB to grab features for running unit tests against when using the ArcObjects framework.
Is anyone successfully using mocking against thinks ...
4
votes
3answers
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ArcMap/ArcObjects - Drawing graphics onscreen: Explanation or tutorial for Draw/Refresh/PartialRefresh methods?
I find myself woefully lacking in understanding of when, why, and how (which type) to do screen draw/refresh/partial refresh. For instance, in a standalone Python script outside the application ...
12
votes
6answers
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Convert between ESRI Geometry and WKT
It seems like there is no means of converting an ArcObjects geometry to the Well-Known Text representation (and vice versa) in ArcGIS ArcObjects API. The only thing I was able to find is conversion to ...
3
votes
1answer
530 views
ESRI Flash Command in custom code
I would like to implement the same flash feature command that ESRI uses when accessing the context menu on a table row.
I have used the following successfully to flash a selected feature:
...
3
votes
2answers
1k views
Can you programmatically change the button image for a ESRI.ArcGIS.Desktop.AddIns.Button?
I'm new to the AddIn customization model in ArcGIS 10 and I'm trying to figure out how to change a button image for a button. I'm looking for the equivalent to the BaseCommand UpdateBitmap method and ...
9
votes
1answer
446 views
Arcobjects in Python: assign interface to objects with feature (shape) geometry
I am trying to use ArcObject in Python. I do have problem with assigning an interface (i.e. IZ.InterpolateZsBetween) to my object with geometry data, code is:
from Comtypes.client import ...
4
votes
4answers
291 views
Can I store an ArcObject inside a BLOB or XML field?
I'm having this crazy idea here...Is it possible to store an ESRI object inside a blob field inside a geodatabase? If not, perhaps a serialized XML representation?
I'm thinking about storing ...
2
votes
2answers
337 views
Create layer from in-memory shape data
In my current project, a feature layer is created based on shape data generated after some complicated surface analysis procedure.
The sequence right now is like
[Surface Analysis Algorithm] -> ...
2
votes
2answers
454 views
ArcObjects: Alternative workflow to using a SQL query with over 1000 values in IN statement
I have a ListBox listing the unique values of a column in a feature class; the user can select any number of values and click a button to then zoom to the set of features matching those values. A ...
9
votes
5answers
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ArcObjects Resources
What are the best books/web sites for C# development with ArcObjects?
The ArcGIS Resource Center is very helpful, but I am trying to find sources with more examples.
Thanks
13
votes
3answers
2k views
ArcObjects: Memory leak in IFeatureClass.Search (only on SDE with direct connect)
UPDATE 6/30/11: ESRI Support say they have reproduced the issue and have opened a bug report (NIM070156).
I have determined that there is a memory leak (in unmanaged heap memory) that occurs when a ...
7
votes
4answers
1k views
Connecting line features and determining the length of the longest line
I have a line feature (see image) representing a river that I created using the Stream_to_Feature tool. The attribute table contains several records representing different lines - the problem is the ...
4
votes
4answers
927 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 ...
5
votes
2answers
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How to convert Distance, Azimuth, Dip to XYZ?
I have an excel spreadsheet with header and survey drill data. Header data contains hole ID, and location coordinates, and the survey data contains related downhole survey with Distance, Azimuth and ...
3
votes
1answer
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How do I programmatically create non-feature-linked, simple line callout annotation and set the anchor point?
Vitals: ArcGIS-ArcView 10.0, Python 2.6.5, PythonWin, comtypes
I'll start with my main questions: How, using ArcObjects, do I go about creating non-feature-linked geodatabase annotation features ...
2
votes
2answers
2k views
Streetview/Bing Bird's Eye Add-In
I'm trying to create an Add-In for this tool:
Link to Google Maps and Bing from MXD (Streetview and Bird's Eye supported)
I'm not receiving an error however my browser is not opening after I select ...
2
votes
3answers
1k views
Export a join table to arcmap
I have shape file (Point) and a table which I join using the following code.
public ITable JoinLayer_Table(IFeatureLayer pFeatLayer, IStandaloneTable pStTable)
{
IDisplayTable ...
10
votes
2answers
1k views
Issues with geoprocessing with .NET
There are some nice features in ArcToolbox we can use, but for some reason, this is NOT working properly. It doesn't even throw me an error.
My software is running inside ArcMap, so no need to ...
8
votes
4answers
4k views
How do I cleanly uninstall ArcGIS 9.3.1 extensions after ArcGIS 9.3.1 is uninstalled?
I uninstalled ArcGIS 9.3.1 (server, desktop, engine), then installed ArcGIS10.0 (Server, Desktop, engine).
When I tried to uninstall some arcmap extensions, I got error 1001 "unable to get installer ...
5
votes
4answers
1k views
Programmatically edit/update metadata in ArcGIS 10
Has anyone succeeded in programmatically updating metadata in ArcGIS 10? Considering using Python/arcpy but ArcObjects (C# or Python/comtypes) is also a possibility.
I need to update both the FGDC ...
3
votes
2answers
245 views
Listing features in the order they were selected
This is an ArcObjects-specific version of this question: Create Array From Selected Features Based on the Order in Which They Were Selected
Is there a way to get the selected FIDs of a feature layer, ...
3
votes
2answers
341 views
Cannot persist to a blob field
Following this initial thread I'm having some problems implementing what was suggested here:
Can I Store An ArcObject inside a BLOB?
Well, following the link Kirk provided, I've came up with this:
...
3
votes
2answers
172 views
How can I implement Persistance in a Layer Extension?
Last time I checked, arcgis doesn't honor IPersistVariant in layer extensions. Rather advanced code has been provided here showing how to implement IPersistStream.
Is there something simpler?
3
votes
2answers
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Accessing ArcGIS layers from seperate thread
I've got an ArcEngine application, referencing a MXD for it's data (and map display). I'm running a query against all layers, so can take quite some time.
I would normally run the query in a ...
8
votes
3answers
6k views
How to create a button in Arcmap 10 to run a Python program?
I have a script that I want to run within ArcMap when a button in a toolbar is clicked, and so far I have only been able to make the script into a script tool. I need it to run as a command, not as a ...
6
votes
1answer
126 views
Why are annotation features containing both GraphicElement and TextElement objects not drawing in an ArcGIS Server map service?
I am building annotation features with Python/comtypes/ArcObjects. The annotation works great in ArcMap (10.1), but it is does not draw when published to a map service in ArcGIS Server. Each piece ...
5
votes
1answer
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First attempt using ArcObjects: ESRI's Add-ins example unclear
I've come to realize that scripting ArcGIS 10.0 with Python imposes too many limitations for my goals with ArcGIS, so I've decided to bite the bullet and delve into ArcObjects.
Apparently, using ...
5
votes
2answers
1k views
How to catch when scale is changed in ArcGIS?
We want to update a combobox so that it always shows the correct scale. If the user zooms-in, out or resizes the control hosting the map. What is the best event or events to catch and use in ArcGIS to ...
4
votes
4answers
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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
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How do I remove Schema Locks from a File GeoDatabase in Java in ArcGis 9.3?
I have an application written in Java which uses ArcObjects 9.3. The application accesses a file GeoDatabase. The application produces output in the GeoDatabase that will be accessed by ArcMap. The ...
3
votes
2answers
360 views
Using ArcObjects, how to convert an Access table into a proper geodatabase table?
I have inherited an ArcGIS application that creates a number of access database tables. I'd like to use ArcObjects to convert them to proper geodatabase tables, which I understand to mean simply ...
3
votes
3answers
531 views
How do I convert existing fields to lat and long using the Calculate Field tool?
I am trying to convert my X and Y fields from feet to lat and long. I can easily do this in Calculate Geometry from the attribute table, but I'm needing to use this in a model and Calculate Geometry ...
3
votes
0answers
373 views
IDatasetContainer2 CreateDataset method fails after upgrading to ArcObjects 10 [closed]
I have a Network Analyst routine that worked for 9.3 and does not work with 10. I was closely following the example at:
...
3
votes
1answer
193 views
Force a new AddDataDialog to open at a defined directory path
Is there a way to force the AddDataDialog to open to a specific path? I created a tool that when clicked on a specific feature will open the Add Data dialog, but I need it to open starting at a ...
2
votes
4answers
450 views
How to distinguish between File and Personal Geodb workspace?
I am looking for a way - given an IWorkspace object - to check if it was created from a Personal-GDB or a File-GDB. I tried using IWorkspace.WorkspaceFactory to check if it's an instance of e.g. ...
2
votes
1answer
385 views
How to control which Fields are exported in ArcObjects? (via Field Mapping)
In ArcMap 10.x, if you use the Export Data command on a layer that has hidden/disabled fields, those fields will not be present in the created feature class/table. My question is simple: how do you ...
2
votes
1answer
266 views
How to cast SDE table to IFeatureClassLoad
How do you cast an SDE table to IFeatureClassLoad using ArcObjects? I'm getting an error with this attempt below which is not the correct method:
Dim pSDEFeatWksp As IFeatureWorkspace = ...
2
votes
5answers
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Programmatically calculating the length of all polyline features in a featureclass
I've come across this issue a few times and have not yet found an agreed upon solution on any forum.
Simply put, I have a featureclass containing many polyline features. I would like to calculate the ...
2
votes
1answer
662 views
How to let user only rearrange layers in a group layer?
We have a stand-alone application were we let the users add local shape and raster layers. We would like to add functionality so that the user can rearrange the added layers within a specific group ...
1
vote
1answer
127 views
Grid labels in ArcGIS, overlapping issues
I do have 3 grids made by Grids menu in data frame properties. I do need them to display in certain layout and also to behave accordingly to couple of rules (overlapping issues), so I can automate my ...
1
vote
1answer
537 views
ArcObjects: Setting image of a command button to a partially transparent bitmap
In an ArcMap 10 add-in, I am attempting to create a toggle button of sorts whose image changes based on the button's state.
This answer describes how to set an add-in button's image programmatically ...
