Select features

Certain tools in Drone2Map work only on selected features. To remove or disable images, the image points must be actively selected from the images feature layer. To remove control points, the control points you want to remove must be actively selected from the control feature layer. Set your default selection behavior in the selection settings, then use the various methods to select features.

Selection settings

You can review and set your selection settings preferences before you begin selecting features. On the Project tab, select Settings. On the Settings dialog box, in the Selection tab, you can set the following default interactive selection options:

• Selection color—Specifies the color of your selected features. The default is cyan.
• Interactive selection mode—Specifies how the shapes you digitize will be used to select features. You have the following two options:
  • Select features that are partially or completely within the selection graphic shape. This is the default.
  • Select features that are completely contained by the selection shape (2D only).
• Selection combination mode—Specifies the behavior when selecting multiple features. This can be configured to any of the following four options:
  • Create a selection set of features each time you digitize with a selection tool. This is the default.
  • Add to the current selection set (Shift+click).
  • Remove features from the current selection set (Ctrl+click).
  • Select features from the current selection set (Ctrl+Shift+click).

• Save layers and tables with their current selection—Maintains the selection for the layers or tables when a project is reopened. This option is enabled by default.
• Display the interactive selection graphic—Maintains the selection shape graphic after drawing a selection shape. This can be useful for making additional dynamic interactive selections. Click and drag the graphic to a new location and update the selection. You can also resize the graphic by clicking and dragging one of its handles.
• Show the selection chip—Controls whether the selection chip appears near the pointer when you select coincident or overlapping features and displays the selection list so you can click the desired feature. This option is enabled by default.
• Keep invisible features selected with a new selection—Maintains the selection set for layers that you turn off before making a new selection.

Select features interactively

Interactive feature selection involves clicking a single feature in the view or digitizing a shape to select a set of features. Selecting features allows you to highlight and choose a subset of features on your map to use in subsequent exploration or analysis of your data. For example, applying a selection allows you to specify the features for which you want to calculate statistics, view attributes, edit, or define the set of features that comprise a layer.

As you interactively select features by clicking or digitizing a shape on the map, the number of features selected is displayed at the bottom of the view. Zoom to the extent of the selected features by clicking the selected features count.

Select features

Once you review and set your selection options, you can select features interactively using any of the following selection tools listed in the Selection group. Selection tools for editing scenarios are also listed on the Edit tab. Click the map, and draw the prescribed shape across the feature or features. For points and line layers, you can select a feature by clicking anywhere on its symbology. In a scene view (3D), features blocked by terrain or other features will not be selected.

1. In the Selection group, on the Map tab, click the selection drop-down arrow and choose a tool.
2. Draw the respective shape across the feature or features using the chosen selection tool.
   • Rectangle —Click a point feature or segment, or click and drag the rectangle across the feature.
   • Polygon —Click the map to create the vertices of the polygon. Double-click to close the polygon and select the feature.
   • Lasso —Press and hold the left mouse button and draw with the pointer to create the freehand shape.
   • Circle —Press and hold the left mouse button and draw with the pointer to create the circle.
   • Line —Click the map to create the vertices of the line. Double-click to end the line and make the selection.
   • Trace —Click a line or polygon segment and draw with the pointer along the boundary and other contiguous features connecting segments by tracing along them. Double-click to end the trace and make the selection (2D views only).
3. Work with the selected features or click the Clear button to clear the selection. You can also deselect all selected features at once by clicking somewhere in the view where there are no features or clicking a feature of a layer that is not selectable.

Selection keyboard shortcuts

The following keyboard shortcuts can make the selection process more efficient:

• Shift—Press and hold to add features to an existing selection. You can click individual features or digitize around a collection.
• Ctrl—Press and hold to remove one or more features from the existing selection.
• Ctrl+Shift—Press and hold to select from the current selection and deselect all others.
• C—Press and hold to navigate the view. This is useful in 3D to select features that are blocked by the current view. The tool's pointer temporarily switches to navigation so you can use the left, middle, and right mouse buttons to navigate. Releasing the C key returns you to selection mode so you can complete your task without leaving the view to change tools.

Select features using attributes

The Select By Attributes button opens the Select Layer By Attribute tool to form a SQL query to select features matching a selection criteria. So instead of interactively selecting features by clicking or drawing a graphic in the 2D or 3D map, you build a query expression to generate the subset. You can query a dataset based on a field in a layer or a table. To select by attributes, complete the following steps:

1. In the Selection group, click the Select By Attributes button to open the Select Layer By Attribute tool.
2. Choose the layer from which you want to select.
3. Enter a query expression using one of the following methods:
   • Click New Expression to begin building a query.
   • Choose a field name.
   • Choose an operator.
   • Choose or enter a value on which to search.
4. Click Select to execute the selection query and work with the selection results.