Menu | Tools > Coverage > Modify > Extract > Using Feature Layer |
The Extract Using Feature Layer command is used to create a new surface by copying one or more sections of an existing surface. The sections to be copied are identified by coverage area features in a feature layer associated with the data. These features can be boundary type or hole type. Boundary type suggests that there is data in the area. Hole type suggests that there is no data in the area, or that the data in the area of the hole is not valid.
The copied sections will be saved as new surfaces, using the attribute values you select from the existing surface. The resulting surfaces will include the extents of each coverage area in the feature layer, including disjointed areas. If there are any hole type coverage areas, they will be reflected in the new surfaces.
You can use an existing feature layer and objects, or create a new layer and cvrage objects specifically for the extraction. The Feature Layer Name field provides a list of all feature layers currently available.
The feature layer you wish to use must be opened. Only opened layers are included in the list of layers available to be used in this process. |
See the New Feature Layer description in the Features Editing Module for information on creating a feature layer. See New Feature in the same module for information on creating features.
Procedure
1. Open a feature layer containing cvrage features, or create a feature layer and add a cvrage feature(s).
2. Select a surface or point cloud in the Layers window.
3. Select the (Extract) Using Feature Layer command.
The Extract Coverage dialog box is displayed. See Interface:.
4. Click the check boxes to select the Available Attributes you want to include in the extracted surface.
5. Select the Feature Layer by Name containing the cvrage features you want to use to define the extents of the extraction.
6. Click Browse (...) to specify a path and file name for the Output Surface.
7. Select an Extract data option.
8. Click OK.