The following content changes related to ArcGIS Desktop and ArcGIS Engine have been made since our last entry in the now-defunct "New on EDN" page (April 2007). All information on new & updated content will be posted on this blog from this date forward and the "New on EDN" page will cease to exist.

Cadastral fabrics and the cadastral editor
Programming language(s): VBA, VB6, VC++, C#, or VB.Net
Development platforms: ArcGIS Desktop with the Survey Analyst extension
SP3 includes the addition of the cadastral fabric and its data model to the ArcGIS Survey Analyst extension to ArcGIS Desktop. The initial API Reference documentation for working with cadastral fabrics is available online now.


New samples related to working with animation
Programming language(s): C# or VB.Net
Development platforms: ArcGIS Desktop

  • The new Move a graphic along a path in ArcMap sample moves a point graphic element or a text element along a selected line feature or line graphic. A new animation type and a corresponding keyframe are implemented to support this functionality, along with an ArcMap command for creating move-object-along-path animation. The sample illustrates how to create a custom animation type in ArcMap as well as how to implement an ArcMap command to import the animation tracks.
  • The Layer effects animation in ArcMap sample illustrates how to create custom animations in ArcGIS Desktop. This sample implements a layer effects animation type for ArcMap. It allows the user to animate through layer brightness and contrast. Note that this animation only works with raster layers which support contrast and brightness as layer properties.
  • A shortcut for creating time animations in ArcGIS Desktop applications is implemented in the Create a time layer animation sample. It illustrates how to create time animations using a variety of data sources (NetCDF, feature class, raster catalog, etc). This sample tool allows the user to create a time layer animation in one step using the Create Time Layer Animation dialog box; in ArcGIS 9.2, the standard way of creating a time animation requires multiple steps using the Create Animation Keyframe and Animation Manager dialog boxes.

New topics related to working with the geodatabase
Programming language(s): C# or VB.Net
Development platforms: ArcGIS Desktop, ArcGIS Engine

  • The article How to sort tables shows the workflow to use with the ITableSort interface to return the ordered results of searches and selections on a table that has ObjectIDs. The results of the sort can be accessed via a cursor or an enumeration of ObjectIDs.
  • How to create relationship classes details how to create a relationship class inside a feature dataset or create a standalone relationship class within a geodatabase. Relationship classes manage the associations between objects in one class (feature class or table) and objects in another. Objects at either end of the relationship can be features with geometry or records in a table.
  • The ISchemaLock interface is used to establish an exclusive lock on a dataset when changing its schema or when performing other operations that require exclusive access to the data. The ISchemaLockInfo interface is used in conjunction with ISchemaLock, in order to supply information concerning the schema lock such as the type of lock and the dataset to which it has been applied. How to use schema locks with the Geodatabase is discussed in this new topic.

NIM010236 - How to connect to a geodatabase
Programming language(s): C# or VB.Net
Development platforms: ArcGIS Desktop, ArcGIS Engine
Corrected a typo in the code examples shown in the .NET topic How to connect to a geodatabase. This had been logged as NIM010236.


NIM007387 - Add a field to an INFO table
Programming language(s): VBA, VB6, VC++, C#, VB.Net, C++, & Java
Development platforms: ArcGIS Desktop, ArcGIS Engine
Fulfilled the request logged as NIM007387 to add a sample showing how to add a field to an INFO table and updated the documentation for the Field class.


Building a custom geoprocessing function tool
Programming language(s): C# or VB.Net
Development platforms: ArcGIS Desktop, ArcGIS Engine
Updated the sample Building a custom geoprocessing function tool to work correctly in both ArcMap & ArcCatalog, resolving an issue reported by an EDN reader. Note: the sample still contains an issue when working with versioned sde data so expect a further update of this sample in the future.


Cloning an object using persistence
Programming language(s): C#
Development platforms: ArcGIS Desktop, ArcGIS Engine
In many cases when you are writing your own custom objects you need to support serialization. For example, a custom symbol or element needs to be saved with the map document and reloaded when the map document is opened. In most cases, you can achieve this functionality quite easily by implementing IPersistVariant, giving you an elegant solution. However, in some cases, IPersistVariant is not enough and your object must support IPersistStream. A new sample demonstrates an implementation of a clonable object through serialization.


Dynamic display documentation additions & improvements
Programming language(s): C# or VB.Net
Development platforms: ArcGIS Engine
Coinciding with the release of the dynamic display caching patch, a number of issues related to documentation for dynamic display capabilities in ArcGIS Engine were also addressed. A number of topics have been added, along with reorganization & editing of some existing materials. The About dynamic display topic is the entry point into this area.


Vertex and reshape editing commands in the ArcGIS Engine Controls
Programming language(s): C# or VB.Net
Development platforms: ArcGIS Engine
A new sample provides 4 tools that can be used in conjunction with the out-of-the-box ArcGIS Engine Editing commands. Three tools relate to vertex management: AddVertex, InsertVertex, and DeleteVertex. The fourth, ReshapePolyLineTool, allows the user to perform a reshape on the selected feature.


Building a map viewing application using the ArcGIS Engine Controls
Programming language(s): C# or VB.Net
Development platforms: ArcGIS Engine
Corrected minor issue reported by an EDN reader with the MXD path in the Building a map viewing application using the ArcGIS Engine Controls walkthrough.