A container for the display and manipulation of map data.
| Interfaces | Description |
|---|---|
| IActiveView | Provides access to members that control the active view - the main application window. |
| IBasicMap | Provides access to members that control the basic map. |
| IConnectionPointContainer | |
| IDisplayAdmin | Provides access to members that control display administration. |
| IDisplayEvents | Provides access to members that control Display Events. |
| IGraphicsContainer | Provides access to members that control the Graphics Container. |
| IGraphicsContainerSelect | Provides access to members that control graphic container selection. |
| IMap | Provides access to members that control the map. |
| IMapAdmin | Provides access to Map administration methods. |
| IMapAdmin2 | Provides access to Map administration methods. |
| IMapBarriers | Provides access to members that control map barriers. |
| IMapBookmarks | Provides access to members that control the map bookmarks. |
| IMapGeographicTransformations | Provides access to members that control the map's set of geographic transformations and the directions in which they are applied. |
| IPersist | |
| IPersistStream | |
| IRelationshipClassCollection | Provides access to members that return the memory relationship classes defined for standalone tables or layers in ArcMap. |
| ISelectionEvents | Provides access to events that occur when the selection changes. |
| IStandaloneTableCollection | Provides access to members that control the standalone table collection. |
| ITableCollection | Provides access to members that control a table collection. |
| ITransformEvents | Provides access to members that control Transform Events. |
| IViewManager | Provides access to members used to describe or define view behavior. |
| Interfaces | Description |
|---|---|
| IActiveViewEvents (default) | Provides access to events that occur when the state of the active view changes. |
| IMapEvents | Provides access to events that occur when the state of the map changes. |
A Map object is a container for map data. A Map object contains layers of both feature and graphic data.
The following is true for the ArcMap application model. Developers creating their own application may find some things different.
Every map document contains at least one Map object. Only one Map can have focus at a time and this Map is termed the focus map. A FocusMap property is conveniently placed on the IMxDocument interface. IMxDocument also has a Maps property which returns a reference (IMaps) to the entire collection of Maps. With IMaps you can get a create or delete Maps or get a reference to an existing Map.
All of the layers in a map share the same spatial reference. The Map's spatial reference is automatically set to the spatial reference of the first layer loaded. New layers loaded into a Map are projected to the Map's spatial reference if their spatial reference is different.
Map's are contained by MapFrames - the PageLayout object has a MapFrame and a MapFrame has a Map. Each Map, in turn, has a collection of Layers and MapSurrounds. Each MapSurround is also associated with a MapSurroundFrame. There are several types of Layers including FeatureLayers, FDOGraphicsLayers, and GroupLayers. MapSurrounds include Legends, NorthArrows, and ScaleBars.
Every Map has a Basic Graphics Layer where all graphics including labels are drawn by default. Users may create additional graphics layers called Groups or Annotation Target Layers all of which are managed by the CompositeGraphicsLayer.
When working with Map's default outbound interface in Visual Basic 6 declare variables as follows: Private WithEvents pMap as Map
When implementing IMapEvents declare variables as follows:Private WithEvents pMapEvents as MapEvents
IMxDocument.FocusMap Property | IMxDocument.Maps Property