To remove metadata items use the Remove Selected, or Remove All button or press Del on the keyboard

Compare Feature Values by Using the Feature View on page 180

Values Names

5.1.3 About Layer Aliases

A layer alias is a name for an image layer or a thematic layer that you can choose to replace standard layer aliases. You can use a descriptive name for easier identification of an image layer.

The basic function of layer aliases is to make the workflow more transparent and independent from the initial input data. Thus, when assigning and using layer aliases, all steps of your analysis become more transferable, because all layer-sensitive operations and features can optionally refer to the layer aliases or to the layers themselves. Hence, processes, classes and customized features become more independent and flexible.

Layer aliases are assigned automatically by the following actions:

• During project creation, standard layer aliases like Layer 1, Layer 2 are always assigned.

• During project creation, if there is metadata concerning image layer aliases.

• Using customized import, you can define layer aliases to be assigned automatically while import of image layers and thematic layers.

• After project creation, when loading a rule set providing layer aliases definitions.

Layer aliases are assigned manually by the following actions:

• When creating a new project in the Create Project dialog box.

• When modifying a project in the Modify Project dialog box by selecting File >

Modify Open Project on the main menu bar.

• After project creation by choosing Process > Edit Aliases > Image Layers Aliases or > Thematic Layers Aliases on the main menu bar.

• After project creation by metadata conversion.

5.1.4 Modify a Project

Modify a selected project by exchanging or renaming image layers or through other operations.

Depending on the project state, different modification options are available:

• Projects that have not yet been analyzed can be modified by exchanging image layers, editing image layer aliases, and editing the project name. You can also select a subset of the scene, assign the value of those pixels which should not be analyzed (No Data values), and edit the display unit and, if available, geocoordinates.

• Projects that contain image objects as a result of image analysis can only be modified by exchanging image layers, editing image layer aliases, and editing the project name. If you want to use all available modification options, you can go to the Project History and roll back the project to the Created state. Alternatively, you can add a new project using the same image data.

Precondition: Projects that contain objects as a result of image analysis have to be opened.

1. To modify a project, do one of the following:

Image Layers Import Options on page 67 Thematic Layers Import Options on page 70 Assign Image Layer Alias on page 437

Create a New Project on page 44

Layer Properties on page 452

Manage Layer Aliases on page 453

Convert Metadata to Provide it to the Feature Tree on page 52

Subset Selection on page 464

Inspect the History of a Project on page 87

View a Project on page 84

• Go to the Workspace window. Right-click a project and choose Modify.

• Open a project and choose File > Modify Open Project on the main menu bar.

2. The Modify Project dialog box opens.

Figure 39: Modify Project dialog box.

3. The project header area ` displays project properties concerning pixel size, coordinate system, geocoding and other.

4. All image layers are displayed a along with their properties.

5. Click OK b to modify the project. If a workspace is open, the new project is displayed in the right pane of the Workspace window. Otherwise, the image is displayed in the project view.

Options

For further options, see the Create a New Project section. Note that the only difference from creating a project is that the layer order cannot be changed in an open project.

5.1.5 Save a Project

Save the currently open project to a project file (extension .dpr).

Note

If you created a project without an open workspace, the project cannot be saved as a part of the workspace. Just save this project as a separate .dpr file and import it to the workspace of your choice.

To save a project, do one of the following:

• Choose File > Save Project on the main menu bar.

• Choose File > Save Project As on the main menu bar. The Save Project dialog box

Create a New Project on page 44

Save Project

opens. Select a folder and enter a name for the project file (.dpr). Click the Save button to store the file.

View settings are saved in a separate file with the extension .dps. If you want to move an Definiens project file and keep the view settings, move the settings file as well.

A saved project includes the following ruleware:

• A rule set or all processes that are displayed in the Process Tree window in the moment the project is saved.

• All actions and their configuration that are displayed in the Analysis Builder window in the moment the project is saved.

Note

Configured actions only can be restored properly if the action library is open that was open when saving. This is because the action library provides corresponding action definitions.

5.1.6 Close a Project

Close the currently open project.

To close a currently open project, do one of the following:

• Click the Close Project button.

• Choose File > Close Project on the main menu bar.

• Create a new project or workspace.

• Open an existing project or workspace.

Close Project

Create a New Project on page 44

Create a New Workspace on page 58

Open an Existing Workspace on page 84 Open a Separate Project on page 43

5.2 Manage Projects in a Workspace

Use the Workspace window, you view and manage all the data in your workspace. Here you open a workspace file that bundles multiple projects.

Figure 40: Workspace window with Summary and Export Specification and drop-down view menu.

The Workspace window is split in two panes:

• The left pane contains the Workspace tree view. It represents the hierarchical structure of the folders that contain the projects. Click a plus sign (+) to expand a folder. Click a minus sign (–) to collapse a folder. Select any folder by clicking.

• On the right pane, you see the content of the selected folder. You can choose among the display options List View, Folder View, and two Thumbnail Views.

For List View and Folder View the right pane of the Workspace window contains information about the selected project: its state, scale, the time of the last processing and available remarks.

The Scale column displays the scale of the scene.

Depending on the processed analysis, there are additional columns providing exported result values.

To change the column width, use the context menu to Expand all columns or Collapse empty columns.