Questions tagged [arcobjects]
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.
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Accessing ArcObjects from Python
I would like to be able to script some things that are not exposed via arcgisscripting or ArcPy.
How do I access ArcObjects from Python?
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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, ...
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Are there any OpenSource ArcObjects Projects?
One of the major benefits of developing GIS applications based on opensource libraries, is that many projects spring up on top of them which are also opensource.
Well designed opensource projects ...
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Algorithm to find out points of inflection for a polyline
I am trying to find out the points of inflection , i.e. points where the curves in a line start and end. If you look at the image, the green line may be a road or a stream, and the black points are ...
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Create weighted Thiessen polygons?
I have a point shapefile and I create Thiessen (Voronoi) polygons programmatically using this scripting syntax:
CreateThiessenPolygons_analysis (in_features, out_feature_class, fields_to_copy)
...
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Converting between Esri Geometry and WKT using ArcObjects?
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 ...
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How can I find the farthest point from a set of existing points?
I have a set of points as a shapefile and I want to find (the coordinates) of a new point which will have the longest possible distance from each of the existing points. Is that possible? If yes, is ...
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Addressing Memory leak in IFeatureClass.Search (only on SDE with direct connect) of ArcObjects?
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 tool in my .NET/C#...
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Using Hillshade option in ArcMap?
Here is a pretty pic of the raster I am using - with no effects applied - just the color ramp and histogram adjusted to show out all the relief - albeit in a very 2D way!
I have a raster layer that I ...
- 1,860
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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 ...
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How do I iterate through every cell in a continuous raster?
See this link for more details.
The Problem:
I want to loop through a continuous raster (one that has no attribute table), cell by cell, and get the value of the cell. I want to take those values ...
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What are the rules for releasing ArcObjects from memory in .NET?
Do I need to release each object? Is some memory management handled for me?
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Avoiding fails from ArcObjects 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 ...
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ArcMap Add-in with app.settings not recognizing app.config changes?
I have developed an ArcMap Add-in which requires a configuration file. After spending a while trying to read config values from a single App.Config file (and always getting null) I believe that the ...
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Bug in F******** spatial relation? (I'm not cussing)
I would expect ISpatialFilter.SpatialRelDescription to behave consistently with IRelationalOperator.Relation. However, when I run the code below, I get:
Total features : 44368
Count1: 9 T****...
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How to get selected Features/Geometry from Windows Clipboard in ArcMap/C#?
I have a custom tool in ArcMap 10. The Workflow is the following:
Select Features in a Layer with the "Select Features by Rectangle" tool
Copy the Features to the Clipboard using STRG+c
Select the ...
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Understanding why ArcPy Cost Path Analysis tool faster than ArcObjects? [closed]
Although I use python to create geoprocessing scripts/services, I was under the impression that using ArcObjects to do the equivalent operation(s) will have better performance.
I've posted ArcGIS ...
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ArcObjects Resources [closed]
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.
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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 ...
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Scale in printed map (mxd) is different in code to manual printing
This question is related in part to a previous question I have asked.
I have tried printing an A3 mxd with the Print Active View code as published by ESRI and have changed only one line of code and ...
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Programmatically edit/update metadata in ArcGIS?
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 ...
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Learning .NET for ArcGIS (mainly Desktop) use
I have basic programming skills (I program simple vba python and lisp scripts and had gone through a java course a long time ago), but it seems to me (judging by ESRI publications) that there is no ...
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Using .NET Generics to store ArcObjects?
What are the implications of using Generic types in .NET to store ArcObjects, such as ILayer, IField, etc?
The compiler throws me a warning when using these kind of values
public class Foo
{
...
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Hyperlink tool use in ArcEngine
I'm having some difficulties using the hyperlink tool (ControlsMapHyperlinkTool) in ArcEngine. Does anyone have any experience with it?
It looks like it behaves correctly except that every time a ...
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What are pros and cons of Python add-ins vs .NET add-ins to ArcGIS for Desktop?
I found in ESRI .NET help:
Python
All ArcGIS Desktop applications include an embedded scripting language called Python. Many areas of ArcGIS—particularly geoprocessing—are accessible through ...
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Remove lock on feature class
When i try to delete a feature class , after or during the use of an Arcgis engine app which uses the same feature class i got an error concerning the lock , so i can't get ride of this lock until i ...
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Guidelines for using ArcObjects from Python
By far, Accessing 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 use. A ...
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Activating custom ITool from form without adding it to ArcMap AddIn toolbar?
I'm working on an add-in for ArcMap 10.0 that adds a toolbar to ArcMap. One command (OpenModelessDialogCommand) button on that toolbar opens a modeless WinForms dialog, from which a tool (MyTool) can ...
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Using Python to disable Scale map elements proportionally to changes in page size?
I am changing sources on MXDs in differents offices using ArcPy and ArcGIS 10.0. As observed here, the printer settings revert to the default printer when the instruction mxd.save() is sent.
Losing ...
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What is the future of ArcGIS web development ? Is it JavaScript and HTML5? [closed]
I want to know about the future of ArcGIS web development; is it HTML5?
I used to work with ArcObjects and .NET Web ADF so what is the best technology I must follow, especially when I know that ...
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How to release the lock on a gdb?
I have problems to release my gdb in ArcGIS10. My tool works with an local gdb, but I failed to release it after the process.
In Ag9.3 I can release it simply by Marshal.ReleaseComObject(workspace), ...
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Implement ArcGIS Custom Features with C#?
Is it possible to implement custom features in .NET?
If so, how?
I suspect the issue is being able to do COM aggregation with .NET, but I can't find anything on that ...
Does anyone know if it is ...
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Verifying that attribute indexes are being used in 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 ...
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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, ...
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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 ...
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C# version for ArcObjects 9.3
Can I use C# 4.0 with the target framework set to .NET 3.5 to develop an extension for ArcMap 9.3? Or does it have to be C# 3.0 or earlier?
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Creating button in ArcMap to run 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 ...
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How do I detect relationship classes in a file GDB?
I would like to be able to detect relationship classes in a file GDB. Because users of my script might have only an ArcView level license, they would not be able to manipulate the schema of a feature ...
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ArcGIS 10 add-in: Top-level exception handling
The ArcGIS 10 add-in I'm working on is pretty simple -- just a tool control and a dockable window. I'm handling the specific exceptions I anticipate occuring at the source and throwing everything else,...
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ArcObjects equivalent to ArcMap Flip button?
In an ArcMap extension, I need to flip multiple lines from a selection.
The ArcMap Flip button only allows you to flip one feature at a time.
What's the ArcObjects equivalent to ArcMap's Flip button?...
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Does SHAPE_Length take into account elevation values?
Does the Shape_Length attribute take into account the elevation? For instance, if I have 3 points: A, B, and C
A.X = 10
A.Y = 10
A.Z = 10
B.X = 10
B.Y = 10
B.Z = 50
C.X = 0
C.Y = 0
C.Z = 10
Then I ...
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Programmatically determine ArcGIS Layer(*.lyr) file version
I've been through IStorage, Microsoft Compound File Spec, ArcObjects deserialization etc. trying to detect the .lyr file version.
Using ArcObjects, I can get at the Layer properties, data source, ...
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Run ArcGIS 10.1 application on 10.2
I support a .NET application that has been compiled on a PC with ArcGIS 10.1 installed. The application comprises a user interface and an ArcGIS desktop extension, plus an installer assembly that is ...
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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 CreateObject,...
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ArcMap extension 9.3 vs 10
I have updated our ArcMap extension to work with ArcMap 10 - mainly just change reference from ESRI.ArcGIS.ADF to ESRI.ArcGIS.ADF.Local and set value of 'Specific Version' property for all references ...
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Referring to NaN or ±∞ (special floating point values) in ArcMap definition queries?
I have by chance discovered how ArcMap displays special floating point values to the user.
+∞ (positive infinity) is displayed as 1.#INF
–∞ (negative infinity) would supposedly be displayed as -1.#...
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ArcMap Addin - add interoperability connection programatically
I'm currently building an add-in for ArcMap - ArcView using the .Net framework.
The user of ArcMap and the Add-in should access data published from WFS services.
I am aware that it is possible to ...
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ArcObjects diagram/object model?
Is there an existing object model diagram for ArcObjects? Something that can be printed out as a large poster.
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ArcObjects: How to insert data into a table?
I have a table in ArcCatalog named WorkOrderAss.
This table contains 3 columns: (OBJECTID, FeatureName, Name).
I want to insert data to this table from the code behind in C#.
Any help would be ...
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Is there an existing library for converting ArcGIS Features to Json?
Is there an existing library for converting ArcGIS IFeature types to and from Json/GeoJson?
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