Clipping a feature in the Ground area
The Landcover area feature classes are used as the base for all land areas, and only certain feature classes can be extracted as features on top of it. The feature class subtypes that can be used to represent other feature types either on or adjacent to land do not always represent all the subtypes available in a feature class.
The model contains very specific guidelines for the units of measurement that must be used when working with an extent. For example, each area is a cell 1 degree by 1 degree in size, and the Landcover area feature must cover the entire area without any gaps.
The MGCP LandCover Extension tool allows you to modify Landcover areas using specific feature classes when it is enabled.
- Start ArcMap.
- On the main menu, click Customize > Toolbars > Production Editing.
- On the main menu, click Customize > Toolbars > Defense Mapping MGCP Tools.
Click the Production Start Editing button on the Production Editing toolbar.
The Manage Features and Create Attributes, Update Attributes, or Metadata Attributes windows automatically appear when you start an edit session using the Production Start Editing tool.Tip:
If the Create Attributes, Update Attributes, or Metadata Attributes window does not appear when you start an edit session, click the Show/Hide Attributes button on the Manage Features window.
Click the MGCP LandCover Extension button on the Defense Mapping MGCP toolbar.
You must enable the MGCP LandCover Extension when collecting features that penetrate GroundA.
The button's appearance changes to let you know the MGCP LandCover Extension tool is enabled.
- Click the Create tab on the Manage Features window.
- Choose an appropriate feature class subtype as the target template.
Create a polygon feature.
If the new feature intersects GroundA, it will automatically cut through the GroundA features.
- Repeat steps 7–8 as needed.
Click the MGCP LandCover Extension button .
The button's appearance changes to let you know that the MGCP LandCover Extension tool is no longer enabled.