Select objects—ArcGIS CityEngine Resources

When you select objects with the Select tool (Q), you identify the objects to which you want to apply an action or operation.

You can select objects in the Viewport, Scene Editor, or Select menu. When selecting objects in the viewport, they get highlighted in the Scene Editor as well and vice versa.
Selected objects are highlighted light blue/light gray.
Objects that are part of a layer that is locked or set as invisible are not selectable.
Activating Isolation mode ( I ) and altering scene object type visibility (viewport menu) do not affect the current selection.
Map layers can be selected in the Scene Editor window only.

Select

To create a rectangular selection, click the Select button Select tool (Q) to open the Selection tool Rectangle selection in the Tool Options window . You can also click Select > Selection Tool in the main menu.

Drag the selection box over the objects to select. Release the mouse button to finalize the selection.

Selection tool options

The Selection tool options include the following:


Selection
Mode	Select Add to selection (Shift) Subtract from selection (Shift+Ctrl) Invert selection (Ctrl) Press and hold the modifiers in the parentheses to change the mode.
Disable Highlight	Hides the selection highlighting while the object remains selected. This is useful when modifying CGA attributes in the Inspector.
Selection Sets	See the Selection sets section below.

Lasso select

To create a lasso selection, click the Select button Select tool (Q) and click the Lasso Selection tool in the Tool Options window . You can also click Select > Lasso Selection Tool in the main menu.

Click and hold the mouse button and drag the mouse following the boundary of the area you want to select to create a precise custom selection. Release the mouse button to finalize the selection.

Lasso Selection tool options

The Lasso Selection tool options include the following:


Lasso Selection
Mode	Select Add to selection (Shift) Subtract from selection (Shift+Ctrl) Invert selection (Ctrl) Press and hold the modifiers in the parentheses to change the mode.
Disable Highlight	Hides the selection highlighting while the object remains selected. This is useful when modifying CGA attributes in the Inspector.
Selection Sets	See the Selection sets section below.

Selection sets

You can add, update, or edit selection sets for later use. To add or update a selection set, do the following:

Select the shapes to add or update a selection set.
Click the Add / Update Selection Set button under Selection Sets in the Selection Tool options. You can also click Select > Add / Update Selection Set in the main menu.
To add or update an existing selection set, do one of the following:
- Click Add to add and save the selection set.
- Select an existing selection set in the list and click Update to update the selection.
Click Cancel to close the window without adding or updating selections sets.

To apply a saved selection set to shapes, do the following:

Click the Choose... drop-down menu under Selection Sets in the Selection Tool options. You can also click Select > Apply Selection Set in the main menu.
Click a saved selection set in the list.
The selection is applied to the shapes.

You can rename, reorder, or remove an existing selection set by doing one of the following:

Click Edit Selection Sets... under Selection Sets in the Selection Tool options.
Click Select > Edit Selection Sets... in the main menu.

Edit selection sets

Note:

Selection sets use an internal identifier to reference the selected objects. Therefore, previously created selection sets do not break when you rename objects.
When deleting a selection set, the objects within don't get deleted.
When loading a selection set, objects that have been deleted in the meantime are ignored.

Select in the Viewport window

The Select tool (Q) offers different methods to select objects:


Click	Selects an individual object. On an already selected object, components are selected (faces, edges, or vertices).
Double-click	Selects and frames an individual object.
Left-to-right selection rectangle	Selects objects or components that are fully inside the selection rectangle. Map layers are not added to the selection.
Right-to-left selection rectangle	Selects objects that intersect with the selection rectangle. Map layers are not added to the selection. *

* This option isn't available with the Lasso Selection tool.

The selection methods can be combined with modifiers:


Shift+click	Add to existing selection.
Ctrl+click	Deselects a selected object or adds an unselected object to a selection.
Ctrl+Shift+click	Remove objects from an existing selection. Unselected objects are not added to the selection. This feature is especially handy when selecting using a selection box.

Right-click in the Viewport window offers a subset of selection methods that are described in the Select main menu.

Select in the Scene Editor window

The following options are available to perform selections in the Scene Editor window :


Click	On a layer/group layer: selects the layer, but does not select the scene objects inside. On a scene object: selects individual object, deselects already selected objects.
Double-click	On a layer/group layer: has no effect. On a scene object: select and frame individual object.
Shift+click	Add to selection, in lists: add adjacent objects.
Ctrl+click	Deselects a selected object or adds an unselected object to the selection.

Select main menu

The Select menu provides methods to grow a current selection you made in the Scene Editor window or in the Viewport window .


Select All, Deselect All, Invert Selection	In this case, "All" means scene objects that are not locked and with visibility = true. Map layers are not included. Select all and deselect all can also be triggered using the shortcuts Ctrl+A and Ctrl+Shift+A. Invert the selection of all selected objects.
Select Objects in Same Layer	All objects in the same layer or layers are selected.
Select Objects by Map Layer	See Selection with image maps for details.
Select Objects in Same Layer Group	All objects in the same layer group or groups are selected.
Select Objects of Same Type	Selects all objects with the same type or types as the current selection.
Select Objects of Same Group	Selects all objects belonging to the same group as the objects in the source selection. For example, if the source selection contains a block, the resulting selection will contain the block and the block's shapes.
Select Objects with Same Rule File	Selects all objects having assigned a rule file that is present in the source selection.
Select Objects with Same Start Rule	Selects all objects having a start rule that is present in the source selection.
Select Continuous Graph Objects	This method can be used to select graph segments that are continuous, for example, if they together define one street. The search for continued segments starts at the source selection.

Multi selections and lead selection

When you create multi selections, the highlighted color of the "lead selection" object varies from the color of the other selected objects. This is because the lead selection is used for operations where additional information is needed. For example, the subtract tool uses the lead selection to determine whether object A shall be subtracted from B or B from A.

Typically, the last object selected becomes the lead selection.
The lead selection is marked with a slightly brighter selection color.
To change the lead selection in an existing selection, use Shift+click in the Viewport window .

Isolate selection

When working with large scenes, it is often useful to hide objects temporarily to declutter the scene. Open the Visibility settings and click Isolate Selection or press I in the Viewport window .

Select the object to isolate.
Click Isolate Selection (I) to remove all other models in the scene.
Modify the isolated objects. You can also change the selection.
Click Isolate Selection (I) again to reveal all (according to visibility settings in the Scene Editor window ) models in the scene.

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